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37, 52 etc. + +\documentstyle[11pt]{article} + + + + + +\addtolength{\oddsidemargin}{-0.75in} + + + + +\setlength{\textheight}{9.4 in} +\setlength{\textheight}{9.0 in} + + + + +\setlength{\textwidth}{5.7 in} + + + + +\setlength{\textwidth}{6.7 in} +\setlength{\textwidth}{6.5 in} + +\setlength{\textwidth}{6.0 in} +\setlength{\textwidth}{6.3 in} + +\setlength{\textwidth}{5.8 in} +%% PRINT + +%\setlength{\textwidth}{5.6 in} + + + + + + + + + + +\addtolength{\topmargin}{-.95in} +%\addtolength{\topmargin}{+.7in} +%%% delete above for pdf + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +\newtheorem{corollary}{Corollary} +\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} + + + + + + + + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + + \title{A Detailed Examination +of Methods for Unifying, Simplifying and Extending +Several +Results About Self-Justifying Logics} + + + + + + + + + + + + + + + + + + + + + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{This research +was partially supported +by the NSF Grant CCR 0956495. +Email = dew@cs.albany.edu.}} + + + + + + + + + + + + + + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + + + + +\normalsize + + + + +\baselineskip = 1.5\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + + + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + + + +\begin{abstract} + \baselineskip = 1.5 \normalbaselineskip \large + +This paper will develop a single framework for unifying, simplifying +and extending our prior results about axiom systems that retain a +partial knowledge of their own consistency, via an axiomatic +declaration of self-consistency. Its perhaps single most surprising +new result will be its exploration of a viable alternative to +conventional reflection principles. +\end{abstract} + + +\normalsize + +\parskip 8pt + +\baselineskip = 1.4 \normalbaselineskip + +\setcounter{page}{0} + + +\bigskip +\bigskip +\bigskip + +{\bf Keywords:} +G\"{o}del's Second Incompleteness Theorem, Consistency, Hilbert's Second +Open Question, +Semantic Tableaux + +\bigskip +\bigskip + +{\bf Mathematics Subject Classification:} +03B52; 03F25; 03F45; 03H13 + + + +\bigskip +\bigskip + + + +% {\bf Please Cite this Paper as:} +% {\rm http://arxiv.org/abs/1108.6330}, +% appearing in Cornell Archives + + + + + + + +\newpage + +\setcounter{page}{1} + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + + +\def\f55{ \baselineskip = 1.59 \normalbaselineskip } +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.59 \normalbaselineskip } +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\def\nop{ } +\def\nop{\newpage} + +\cvl +\cvnew + + +\def\nop{\newpage} + + +\cvnew +\cvl + +\parskip 3pt + + + +\def\hgskip{ \medskip } + +\def\nop{ } +\def\njp{\newpage} +\def\njp{ } +\def\nop{\newpage} + +\cvl +\cvnew + +\def\nskip{\bigskip} + +\cvl +\cvnew + + +\section{Introduction} + +%% CHANGES REMOVE NEW PAGE IN BIB before willard 2001 + +%% CHANGES = - 3 footnote -ACKN -APPF -TABLE NUMBERS + +%% CHANGES + ww11 Reminder-to-reader Footnote 24 state TABLE + +\label{secc1} +\label{B1-lem} +\label{D1-def} + +\parskip 2pt + + +Let +$~\alpha~$ +denote an axiom system, +and $~d~$ +denote + a +deduction method. +The ordered pair + $~( \alpha , d )$ +will +be called {\bf Self Justifying} when: +\begin{description} + \item[ i ] one of $ \, \alpha \,$'s theorems +states that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +For any $\,(\alpha,d) \,$, +it is +easy +to construct a second +axiom system $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +Part-i of +this definition. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus the following added +sentence, that we call +{\bf SelfRef$(\alpha,d)~$}: +\topsep -3pt +\begin{quote} +$\bullet~~~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} of +the + axiom system $\, \alpha \, $ +with {\it this} +sentence ``SelfRef$(\alpha,d) \,$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +discussed +how +to +encode +approximate + analogs of +SelfRef$(\alpha,d)$'s + self-referential statement. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii of self-justification's +definition. + +\smallskip + +This problem arises in +settings +more general than + G\"{o}del's +paradigm, +where $\alpha$ was an extension of Peano Arithmetic. +There +are +many +settings +where the Second Incompleteness Theorem does +generalize +\cite{Ad2,AB1,AZ1,BS76,Bu86,BI95,Fe60,Go31,HP91,HB39,Ko6,KT74,Lo55,PD83,PW81,Pu84,Pu85,Pu96,Ro67,Sa11,Sm85,So94,Sv7,Ta0,VV94,Vi92,Vi5,WP87,ww2,wwapal,wwlogos,ww7}. +Each such result formalizes a +paradigm where +self-justification is infeasible, +due to a diagonalization issue. +Most +logicians +have +hesitated to +thus + employ +a SelfRef$(\alpha,d)$ + axiom +because +$\alpha+$SelfRef$(\alpha,d) $ +is usually + inconsistent \footnote{ \baselineskip = 1.3 \normalbaselineskip \label{troub} + Typical ordered pairs $(\alpha,d)$ + will have the property that + the broader axiom system + $~\alpha^d~=~\alpha \,+ \,$SelfRef$(\alpha,d)$ will + be inconsistent, even + when $~\alpha~$ is consistent. This is because + a + standard + G\"{o}del-like self-referencing + %diagonalization + construction + will + %usually + typically + % be able to + produce a proof of $0=1$ from + $~\alpha^d\,$, irregardless of whether or not $~\alpha$ is +% formally + consistent.}. + + + + + + +\smallskip + + + + + +Our research +explored special +circumstances +\cite{ww1,ww5,ww6,wwapal} +where it is feasible to +construct self-justifying formalisms. +These paradigms involved weakening +the properties a system can prove about +addition and/or +multiplication +(to avoid the preceding +difficulties). +To be more precise, let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote +two +3-way predicates + indicating +$x$, $y$ and $z$ satisfy +$x+y=z$ and +$x*y=z$. +A +logic +will be said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} iff it +includes +1-3 as axioms. + + +\vspace*{- 0.8 em} +{\ +\cvl +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + +\vspace*{- 0.6 em} + +\cvl + +We will say +a +logic +system +$\alpha$ +is +{\bf Type-M} iff it contains +each of \eq{totdefxs} -- \eq{totdefxm} +as axioms, +{\bf Type-A} iff it contains only +\eq{totdefxs} and \eq{totdefxa} as axioms, +and {\bf Type-S} iff it contains +only \eq{totdefxs} as an + axiom. +A system is called +{\bf Type-NS} iff it {\it does not} contain +any of these axioms. + + + + + +Our investigations + \cite{ww1}--\cite{ww7} +began by observing +some +Type-A systems can recognize +their +consistency under semantic tableaux deduction, +and +several +Type-NS systems +can +recognize their + Hilbert consistency. +Many of +these systems were capable of +proving +%all +Peano Arithmetic's + $\Pi_1$ theorems +in a language +that represents addition and multiplication +as +the +3-way predicates +of + Add$(x,y,z)$ and Mult$(x,y,z)$. + + + + + + +\parskip 1pt + +Our self-justifying + evasions of the +Incompleteness +Theorem are difficult to further extend +primarily because the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} showed +natural +Type-S systems cannot recognize their own Hilbert consistency. +Also, Willard + \cite{ww2,ww7,ww9} +% +% wwooo +% +strengthened earlier results of +Adamowicz-Zbierski +\cite{Ad2,AZ1} +to establish that natural +Type-M system cannot recognize their semantic +tableaux consistency. + +\cvs + + + + + + +\medskip + + +A related + class of evasions of the + Second Incompleteness +Theorem +was discovered +in \cite{ww9}. +Let us say + $~\alpha~$ +is +a +{\bf Type-Almost-M} +axiom system +iff $~\alpha~$ can prove +statements \eq{totdefsymba} and +\eq{totdefsymbm} +as theorems +while treating +{\it +none of sentences + \eq{totdefxs} -- + \eq{totdefsymbm} +as axioms.} +(Many axiom systems, +that +use + function symbols ``$~+~$'' and +``$~*~$'' for +formalizing addition and multiplication, +fall technically into the +% obviously +Type-Almost-M +% (rather than Type-M) +category.) +\vspace*{- .2 em} +\beq +\label{totdefsymba} +\forall x ~\forall y~ \exists z ~~~~x+y=z +\enq +\vspace*{- 1.5 em} +\beq +\label{totdefsymbm} +\forall x ~\forall y ~\exists z + ~~~~x*y=z +\enq +\vspace*{-1.4 em} + +\noindent +The preceding is of interest because +some surprisingly strong +(albeit unusual) +Type-Almost-M systems +\cite{ww9} + have an ability to +verify their Herbrand but not +also semantic tableaux consistency. + + + + +The +proofs +in our prior papers +were +challenging +primarily + because +they required +one to separate the +local combinatorial +methods +employed in +\cite{ww93,ww5,wwapal,ww9}'s + particular applications +from +the +common principles +that underlied behind all +these +works. +Our +Theorems \ref{ppp1}, \ref{ppp2} and \ref{pqq4} +will rectify this problem by +identifying +common components +that unite these +four paradigms. +(Theorems + \ref{pqq3}, \ref{pqq5}, + \ref{ppp6}, +E.1, G.2 and G.3 will then carry on +in further +directions.) + + +%%%iii 1 + + + +All these theorems will +contain severe limits on their generality, so that the +Second Incompleteness Theorem does not contradict them. +It is clearly perplexing to imagine +how humans +are able to +motivate themselves to cogitate, +without + their thought processes possessing +some type of +{\it at least tentative} +presumption of +their own consistency. +%It is for this reason that our +Our +research +has thus consisted of an approximately equal effort +in exploring +both +\cite{ww2,wwlogos,wwapal,ww7}'s +new +% types of +generalizations of the +Second Incompleteness Theorem +and +%in examining the unusual perspectives of +\cite{ww93,ww1,ww5,ww6,wwapal,ww9}'s unusual +boundary-case exceptions to it. + +%\parskip 1pt + +It is clear +every boundary-case exception +to the Second Incompleteness Theorem +has limited scope because +the Incompleteness Theorem +is a broadly encompassing result. +This + paper + will, thus, +be addressing +a challenging +near-paradoxical + question +about the maximal +nature of +self-justification +that + can + never be resolved +in a +fully satisfying +manner. +The Second + Incompleteness Theorem is +clearly sufficiently +central to +logic +for it to be desirable +to know +what {\it partial roads of success} a +self-justifying axiom system can +obtain. + +%\cvs + +%\vspace*{- 0.6 em} + +\section{Literature Survey} + + +\label{survey} +\label{B2-lem} +\label{D2-def} + + +%\vspace*{- 0.6 em} + + + + + + + + +Two 5-page surveys of the prior literature about the +Second Incompleteness +Theorem were provided in our +articles \cite{ww5,wwapal}. +This section will present a +more abbreviated survey, +focusing +on +only +those +developments that are +particularly germane to + the current article. + + + +The study of incompleteness +began with +four classic papers by +G\"{o}del, L\"{o}b, Rosser and Tarski +\cite{Go31,Lo55,Ro36,Ta36} and +with the +Hilbert-Bernays + exploration of +their +derivability conditions +\cite{HP91,HB39,Ka91}. +Generalizations of these results for weak +axiom systems, such as Q, began with +the work of Tarski-Mostowski-Robinson \cite{TMR53} +and +Bezboruah-Shepherdson \cite{BS76}. + + + + + + + +Some +more +notation is needed to describe more +recent developments. +Let $~x'~$ denote +the ``successor'' operation that maps +$x$ onto $x+1$. +A formula + $ \varphi(x) $ is called \cite{HP91} a +{\bf Definable Cut} for an +axiom system $~ \alpha~$ iff +$~\alpha~$ can prove: +\begin{equation} +\label{initdefx} +\varphi(0) \mbox{ AND } +\forall~x~ \{~\varphi(x)\Rightarrow\varphi(~x'~)~ \} + \mbox{ AND } + \forall~x ~\forall~y \,0 \,$, +$\,$let $ \, \phi_{i} \, $ +and $ \, \psi_{i} \, $ +denote the +sentences in +\eq{as} and \eq{bs} +respectively. +Also, + let + $ \, \phi_{0} \, $ and +$ \, \psi_{0} \, $ +denote \eq{zs}'s +sentence. +Then + $ \, \phi_0, \, \phi_1, \, ... \, \phi_n \, $ +imply + $ \, x_n \, = \, 2^{ n+1} \, , \, $ and + $ \, \psi_0, \, \psi_1, \, ... \, \psi_n \, $ + imply $ \, y_n \, = \, 2^{2^n} \, $. +Thus, the latter sequence +grows at a +faster +rate than +the former. +Much of our research has used the difference between the +growth rates of +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +as a motivating example explaining why +\ep{totdefxa}'s Type-A axiom systems can +support a stronger form of boundary-case exception +to the semantic tableaux version of the Second Incompleteness +theorem than +can +Type-M systems. + +\parskip 2pt + + +\smallskip + + +Let +Log$(\, y_n \,) \, = \, 2^{n} \, $ +and +Log$(\, x_n \,) \, = \, {n+1} \, $ +thus +designate the lengths of the binary codings for +$ \, y_n \, $ + and +$ \, x_n \, $. +Then $ \, y_n\,$'s coding +has a length +$\, 2^{n} \, $, which is + {\it much larger} than +the $ n+1 $ +steps that $ \, \psi_0, \, \psi_1, \, ... \, \psi_n \, $ +use to +define its existence. +However, + $ \, x_n\,$'s +length has a + smaller + size of +$ \, {n+1} \, $. +These observations are useful because every proof +of the +Incompleteness Theorem +involves +a +G\"{o}del + number $ \, z \,$ +coding a sentence +that has a capacity +to self-reference its own definition. +The faster +growing series $y_0,\,y_1,\,,\,...\,y_n$ +should +be intuitively +anticipated +to have + this +self-referencing +capacity because + $~y_n\,$'s binary encoding +has a +$~2^{n+1}~$ length that +dwarfs the +size of the $O(n)$ +steps +used + to define its +value. Leaving aside +\cite{ww2,ww7}'s +% +% wwoooo +% +many details, +this +fast growth +explains +roughly + why many Type-M +logics +satisfy the semantic tableaux version of +the Second Incompleteness Theorem. + + +\smallskip + +This paradigm also +illustrates intuitively +why some + Type-A systems, employing +\cite{ww93,ww1,ww5}'s +semantic tableaux formalism, +can +represent +boundary-case exceptions to the + Second +Incompleteness +Theorem. + This is because such formalisms +lack access to +\ep{totdefxm}'s axiom that multiplication is a total function. +(They are +unable, +thus, + to +easily + construct numbers $ \, z \, $ that can +self-reference their own definitions +because they have access only +to the slower growing + addition primitive.) +In particular +assuming only that each sentence in +the axiom-sequence + $ \phi_0, \phi_1, ... \phi_n $ +(from \ep{as} ) +requires a mere +two bits +for its encoding, +the length $ n+1 $ of + $ x_n $'s +binary encoding +will be +smaller +than the +length of its +defining + sequence. + +\smallskip + +This short length for $ x_n $ +had +motivated +\cite{ww93,ww1,ww5,ww6}'s +evasion of +the semantic tableaux +version +of the +Second Incompleteness Theorem. +It +suggested that the self-referencing +needed in a +G\"{o}del-like diagonalization argument would stop being +feasible +when \ep{as}'s slow-growing +$x_1,\,x_2,\,x_3,\,...$ +sequence represents the fastest growth that is possible. + + + + +One of the several goals in this article +will be + to formalize +a generalizations of +\cite{ww93,ww1,ww5,ww6}'s +self-justifying methodologies by using +Definition \ref{def3.3}'s +generic configurations. +The proofs +of our main theorems +will, of course, be +more subtle than +the hand-waving intuitions appearing in this example. +For instance, the combined work of +Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris \cite{Ne86,Pu85,So94,WP87} +(summarized by Theorem 2.1) +raised the subtle issue that + no Type-S system +can +prove a theorem affirming its +own Hilbert consistency. +Another complication +is that the +\ep{bs}'s implication for proofs that use +the multiplication operative has +different side effects for +Herbrandized and +semantic tableaux +deduction +(on account of + Ko{\l}odziejczyk +\cite{Ko5,Ko6}'s +previously mentioned +observations about the potential +exponential difference between the lengths of these +proofs +under extremal +circumstances). + + + + +\smallskip + +Our +main theorems +will show +that +self-justifying systems, +using four +deduction methods, +are +capable of proving +all of Peano Arithmetic's $\Pi_1^\xi$ +theorems. +Interestingly, +self-justification +will +be compatible with \cite{ww5}'s modification +of semantic tableaux deduction, +that includes a + modus ponens rule + for + $\Pi_1^\xi$ and $\Sigma_1^\xi$ type sentences. +However, + \cite{wwlogos} +has shown +an analogous + modus ponens rule for + $\Pi_2^\xi$ and $\Sigma_2^\xi$ sentences +is incompatible +with self justification. +(Thus, the contrast between our +main +results and the +Second Incompleteness +Theorem's generalizations will be quite tight.) + + + +\cvl + + +\section{Five Helpful Definitions and An Informative Lemma} + +\label{3uuuu2} + +\label{D.4-theorx} + + +This section will introduce +five definitions and + prove +a +Lemma \ref{lemex4} +about +self justification. +This lemma +will be +% much +weaker +than +Sections \ref{3uuuu3} +and \ref{sect64}'s +main results. +Its +main +purpose + will be to provide +a +useful +starting example. + + + + + +\smallskip + +\bxbxdr +\label{xd+1x3} +The symbol +``E$(n)$'' +will denote some +term +in Definition \ref{def3.3}'s +language $ \, L^\xi \, $ +that represents the +value + $ \, 2^n \, . \, $ +In using +this symbol, we do +not presume that +$ \, L^\xi \, $ possesses a function +symbol for +the exponent operation. +Thus if $ \, L^\xi \, $ +has only a function symbol for +multiplication, +then + E$(n)$ +could +designate +the term of $ \, $``$ \, 2*2* \, ... \, *2 \, $''$ \, $ with +$ \, n \, $ repetitions of ``2'' $. \, $ (Alternatively, + E$(n)$ +can be + defined via +applying + $\, 2^n \,$ iterations +of the successor function to zero, +or by having a +special constant symbol designating + $ \, 2^n \, $'s value. +Essentially, any reasonable method can +be used to define E$(n)$'s value) + + +\eedd + +\cvrew + +\nop + +\smallskip + +\bxbxdr +\label{xd+1x4} +Let +$\,\Uxp \,$ denote +a prenex normal sentence. +Then +{\bf Scope$_E$($\Uxp,$N)$~$} will denote +a sentence identical to $~\Uxp~$ except that +every unbounded universal quantifier ``$~\forall~v~$'' +is changed to ``$ \, \forall \, v \, < \, E(N) \, $'', +and every + unbounded existential quantifier ``$ \, \exists \, v \, $'' +is changed to ``$ \, \exists \, v \, < \, E(N) \, $''. +(No change is made among the bounded quantifiers within +the +$~\Delta_0^\xi$ +part of the sentence +$\,\Uxp \,$.) +For example, if +$\,\Uxp \,$ denotes +the $\Pi_1^\xi$ +sentence of +$~\forall \, v_1~\forall \, v_2~...~\forall \, v_k~~~\phi(v_1,v_2,...v_k)~$ +then +\eq{scopede} +illustrates +Scope$_E$($\Uxp,$N)'s form. +Likewise if +$~\Uxp ~$ is +the $~\Sigma_1^\xi~$ +sentence of +$~\exists \, v_1~\exists \, v_2~...~\exists \, v_k~~~\phi(v_1,v_2,...v_k)~$ +then +\eq{scopedx} illustrates +Scope$_E$($\Uxp,$N)'s form. + +\vspace*{- 0.4 em} + +{ +\small +\cvl +\beq +\label{scopede} +\forall ~ v_1~ < ~E(N)~~\forall ~ v_2~ < ~E(N)~~ ... +\forall ~ v_k~ < ~E(N) ~~~~~ : ~~~~~ +\phi(v_1,v_2,...v_k)~ +\enq +\beq +\label{scopedx} +\exists ~ v_1~ < ~E(N)~~\exists ~ v_2~ < ~E(N)~~ ... +\exists ~ v_k~ < ~E(N) ~~~~~ : ~~~~~ +\phi(v_1,v_2,...v_k)~ +\enq} +\eedd + + +{\bf Special Note about Definition \ref{xd+1x4}'s Meaning.} +If +$\Uxp$ is a +$\Delta_0^\xi~$ +sentence then +Scope$_E$($\Uxp,N)$ +will +be equivalent to $~\Uxp~$ +for every $N \geq 0$ +by definition. +(This is because +$\Delta_0^\xi~$ formulae +contain +no unbounded quantifiers +that undergo change when + $\Uxp$ is mapped onto +Scope$_E$($\Uxp,N).~~)$ + + +\medskip + + + +{\bf More About +this Notation:} +The +potentially lengthy +syntactic object of +``$\,$Scope$_E$($\Uxp,$N)$\,$'' {\it + will actually + not} +be used +in our physical encodings +of proofs. +Instead, these encodings will + use the +more +desirably +compressed +object of +``$\,\Uxp\,$'' +(which has no +possibly bulky + $E(N)$ term). The {\it sole function} of +$\,$Scope$_E$($\Uxp,$N)$\,$ +will be for us to speculate about what +Boolean value +$\,\Uxp\,$ + {\it would theoretically assume} +(under the Standard-M + model) +if $\,\Uxp\,$'s quantifiers +were modified + so that their ranges +were changed to be +bounded by $E(N).$ +$~\,$(It turns out that +Scope$_E$($\Uxp,$N)$\,$'s +finitized quantifier-range +will +help +%greatly +simplify our +analysis.) + +%proofs.) + + +\medskip + + +\bxbxdr +\label{xd+1x5} +A +$\Pi_1^\xi$ +or $\Sigma_1^\xi$ +sentence + $ \Uxp $ will be called +{\bf Good(N)} +when the entity +Scope$_E$($\Uxp,N)$ is +true +under the +Standard-M model +\footnote{\f55 \label{fgood} A +quite +unusual aspect of Definition \ref{xd+1x5} is that its +Good$(N)$ condition +has opposite properties when it is applied to +$\Pi_1^\xi$ +and $\Sigma_1^\xi$ +sentences +in one particular respect. +This is because for each $~N,~$ the + Good$(~N~)$ condition is weaker than +the +Good$(~\infty~)$ condition +for $\Pi_1^\xi$ +sentences, while it is stronger than it for + $\Sigma_1^\xi$ +sentences. (For instance, +$~\forall \, x~\phi(x)~$ is +stronger than +$~\forall \, x b \, +\geq \, 2 \, $ +Then + an axiom system $ \, Z \, $ +(employing $ \, L^* \,$'s language) +will be called +a {\bf Normed(a,b)} formalism iff: +\begin{enumerate} +\item All $Z$'s +axioms are +either $\Pi_1^{*}$ +or $\Sigma_1^{*}$ sentences. +\item +Each $\Pi_1^{*}$ axiom of $~Z~$ +will satisfy Definition \ref{xd+1x5}'s +Good($~$Log$_2a~)$ +criteria, and + each + $\Sigma_1^{*}$ axiom of $~Z~$ +will +likewise + satisfy Good($~$Log$_2b~)$. +\ene + +\nskip +\nskip + + +{\bf Clarification about Definition D.\ref{D2-def} +: } The +``Normed(a,b)'' +concept (above) +is obviously +equivalent to the same-named notion +appearing in +Definition 4 of \cite{ww5}. +It uses, +however, + a +different notation +to make it compatible +with +Section \ref{3uuuu2}'s formalism. +Thus, Item 2's assertion +that the + $\Pi_1^{*}$ axiom +$ \, \forall \, v_1 \, \, \forall \, v_2 \, \, ... +\forall v_k \, \, \, \, \phi(v_1,v_2,...v_k) \, \, $ +satisfies +Good($~$Log$_2a~)$ is equivalent to +\eq{normscopede}'s statement. +The +Good($\,$Log$_2b\,)$ property of +$\exists \,v_1\,\exists \,v_2\, ...\,\exists \,v_k\, ~~\phi(v_1,v_2,...v_k)~$ +is, +likewise, + equivalent to \eq{normscopedx}. + +\nskip + +\beq +\label{normscopede} +\forall ~ v_1~ < ~a~~\forall ~ v_2~ < ~a~~ ... +\forall ~ v_k~ < ~a + ~~~~~ : ~~~~~ +\phi(v_1,v_2,...v_k)~~. +\enq + +\nskip + +\beq +\label{normscopedx} +\exists ~ v_1~ < ~b~~\exists ~ v_2~ < ~b~~ ... +\exists ~ v_k~ < ~b + ~~~~~ : ~~~~~ +\phi(v_1,v_2,...v_k)~~. +\enq + +\parskip 5pt + +\nskip + +Our interests in +this notation +will center around Fact D.3's invariant: + + + +{ +%%corbl \baselineskip = 1.17 \normalbaselineskip + +\medskip + +\nop + +{\bf Fact D.3$~.$} +Let +$ \, \xi^* \, $ +denote + Definition D.\ref{D1-def}'s +generic configuration, and +$ Z $ be an extension of $ \, \xi^* \,$'s +base axiom +system $ B^* $ +which +satisfies Definition D.\ref{D2-def}'s +Normed$(a,b)$ constraint. +Then any +$Z-$Based deduction tree +$\, T \, $that +has a G\"{o}del +number +smaller than + $ \, (a/b)^4 \,$ +must +contain +at least one +root-to-leaf branch, called $ \, \peta \, \, , \, $ +that is not +``closed''. {\rm +(In other words, this path $ \, \peta \, $ +will be contradiction-free, insofar as it +does not contain both some +sentence $~\Psi~$ and its formal +negation).} +} + +%%notre + +%%notre-only {\bf Proof:} $~$ The justification of +%%notre-only Fact D.3 is essentially +%%notre-only an +%%notre-only %a direct and +%%notre-only immediate +%%notre-only consequence +%%notre-only of the +%%notre-only %% no +%%notre-only %% no \newpage +%%notre-only %% no \noindent +%%notre-only %% no +%%notre-only Lemmas 1 and 2 from \cite{ww5} +%%notre-only after one maps these two lemmas's notation into the +%%notre-only context of Fact D.3's +%%notre-only hypothesis. (We provide a detailed justification +%%notre-only of this +%%notre-only technical +%%notre-only fact in the Footnote 23 of the slightly longer +%%notre-only unabridged version of this article +%%notre-only that +%%notre-only resides in the Cornell Archives \cite{ww11}.) + + + + \smallskip + +\nskip + +%%cccorn-ff + +%%cccorn-cc +%%cccorn-cc + {\bf Proof:} + $~$ The + justification of + Fact D.3 is +% essentially +% an + a direct +% and immediate + consequence + of + %% no + %% no \newpage + %% no \noindent + %% no +the Lemmas 1 and 2 +appearing in article \cite{ww5} + (see footnote + \footnote{\label{newtry} + \baselineskip = 1.3 \normalbaselineskip + A + %formal + proof of Fact D.3 from first principles would + be + quite + complicated because there are eight elimination rules employed + by semantic tableaux deduction, $~$each + of which needs to + be + % simultaneously + examined by such a proof's umbrella + formalism. Fortunately, we do not need provide such a + complicated analysis here + because + a 4-page proof of + the Lemmas 1 and 2 + in Section 5.2 + of \cite{ww5} + had + already + visited these issues. + Thus, + Fact D.3 + turns out to be an easy consequence + of these two lemmas + %the Lemmas 1 and 2 of \cite{ww5} + after the following two straightforward issues are addressed: + \bee + \topsep -4pt + \itemsep -2pt + \item Section 5.2 of \cite{ww5} + had + defined the $\,$``U-Height''$\,$ of a deduction tree to + be the + largest + number of + U-Grounding function symbols + that appear in any of its root-to-leaf + branches. Its Lemma 1 + proved that + every deduction tree with a U-Height $\, \leq \, Log_2a \, - \, Log_2b \, $ + will contain at least one branch + satisfying a condition, + which \cite{ww5} + called ``Positive(a,b)''. + The Lemma 2 in \cite{ww5} then showed that this + Positive(a,b) property implies that the germane + deduction tree must contain some branch that is + contradiction-free. + The combination of these two lemmas + thus amounts to the establishing of + the following + %slightly + rephrased + hybridized statement: + %invariant: + \begin{quote} + $\bullet~~~$ + If a Z-based deduction + tree has + a U-Height $\, \leq \, Log_2a \, - \, Log_2b \, $, + then some branch of it + is contradiction-free + (i.e. this branch cannot + contain both some + % $\Delta_0^*$ + sentence $~\Psi~$ and its + negation). + \end{quote} + \item + %% + %% Item $\, \bullet \,$ + %% applies to Fact D.3 's + %% deduction trees + %% because + %% + Fact D.3 's hypothesis indicated the + G\"{o}del number $g$ for its deduction tree + satisfied the following + conditions: + \bed + \topsep -7pt + \itemsep -1pt + \item[ I. ] + $~~g~\leq ~ (a/b)^4~$ + \item[ II. ] + The U-Height of $~g \,$'s deduction tree + is less than $~\frac{1}{5}~$Log$_2~g~$. (This + is + simply + because + Fact D.3 presumes that + the ``Conventional Tableaux Encoding'' methodology + from Part-iv of + Definition D.\ref{D1-def} + was used to encode $~g$'s + G\"{o}del number.) + \ennd + Items + I and II imply + $g \,$'s tree has + a U-Height $\, \leq \, Log_2a \, - \, Log_2b $. + The invariant $\, \bullet \,$ + %then, in turn, implies + %that this deduction tree + then implies + this deduction tree + has at least one branch + that is contradiction-free (as Fact D.3 + claimed). $\Box$ + \ene + We emphasize that the + %The + above + % 2-part + justification + of Fact D.3 is + {\it much simpler} + than a proof from first principles. + % + %This is because the + % + The + latter would + require examining + eight different + tableaux + elimination rules, + as the detailed + proofs of \cite{ww5}'s + Lemmas 1 and 2 + actually + did do.} + % + %\noindent + %-----------------------------------------------------------------} +for more details). $~~\Box$ + + +%%%% +%%%% provides some +%%%% %some +%%%% % precise +%%%% % details +%%%% details about how +%%%% the Lemmas 1 and 2 +%%%% of \cite{ww5} do +%%%% imply Fact D.3). +%%%% + + +\nop + + + +We will now apply Fact D.3 to prove +Theorem D.\ref{D.4-theorx}. +Its invariant will, +interestingly, +collapse entirely +\footnote{\h55 $~$The +difficulty posed by +%the +multiplication +%operation +can be easily understood when one compares +two +integers sequences + $ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $, +defined +as follows: +\begin{center} +$x_{i}~~=~~x_{i-1}+x_{i-1}~~~~~$ +$~~$ AND $~~$ +$~~~~~y_{i}~~=~~y_{i-1}*y_{i-1}$ +\end{center} +It turns out that the faster growth rate of multiplication +under +the series $~ y_0, y_1, y_2, ...~ $ +enables +one to to construct tiny +$Z-$Based deduction trees +$\, T$ that +violate +the analog of Fact D.3 's paradigm. +(This is +because +such trees + can have +G\"{o}del +numbers +smaller than + $ \, (a/b)^4 \,$, +while +all their +root-to-leaf branches +can be simultaneously +``closed'' via contradictions.) +This +property of + multiplication is +analogous +to Example \ref{ex3-3}'s +observations about + how the +differing growth rates of +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +are related to the +threshold where the semantic tableaux version of + Second Incompleteness Theorem can be evaded. \fend } +%% +%% It +%% explains +%% intuitively +%% why Fact D.3 and +%% Theorem D.\ref{D.4-theorx} +%% use +%% paradigms +%% that recognize addition but not multiplication +%% as total functions +%% during their evasions of +%% the semantic tableaux version of +%% the Second Incompleteness Theorem. \fend } +%% + if one were to +merely add +a multiplication function symbol to +the + U-Grounding language. +This is why +our +boundary-case exceptions +to the semantic tableaux version of the Second Incompleteness +allow +a Type-A axiom system +to +recognize addition +as a total function (but +suppress a similar + treatment of + multiplication). + + + + +\hgskip + + +{\bf Theorem +D.\ref{D.4-theorx}.} +{\it The generic configuration $\xi^*$ +is both A-stable and +E-stable.} {\rm (This +implies many different +self-justifying formalisms +exist +via Theorems +\ref{ppp1}, \ref{pqq3}, \ref{pqq4}, \ref{pqq5}, + \ref{ppp6}, + G.2 and G.3.)} + +\cvs + +\hgskip + +Our proof of +Theorem D.\ref{D.4-theorx} will +separately +show + $\xi^*$ is +A-stable and E-stable. + +\hgskip + +\parskip 3pt + +{\bf Proof of + $ \, \xi^* \,$'s A-stability :} +Suppose for the sake of establishing a +proof by + contradiction +that $ \, \xi^* \, $ was not A-stable. +Then the constraint $ \, * \, $ +of Definition \ref{astab} +would be violated +by at least +%%%%% bbbbb +some +$\theta \, \in \,$RE-Class$(\xi)$. +This violation + will cause the statement $ \, + \, $ to be true +for +such a + $\theta~$: +\begin{description} +\item[ + ] +There exists a +semantic tableaux + proof $~p~$ +of a + $~\Pi_1^*~ $ theorem, +called say +$ \, \Uxp ~,~ $ +from + the +axiom system of $~\theta \cup B^\xi~$ +such that + Log$(p)~\leq \zzz \theta)~+1~ $ +and where + $ \, \Uxp \, $ also +fails to +satisfy + Good$\{~ \, \tftt \zzz \theta) \, ~\}~$. +\end{description} +Let us recall that +if $\Uxp$ is $\Pi_1^*\,$ then +Reverse$(\, \Uxp \,)~$ +is a +$\Sigma_1^*$ sentence equivalent to $~\neg \Uxp~$. +Thus, +Reverse$(\, \Uxp \,)~$ will satisfy +Good$\{~ \, \tftt \zzz \theta) \, ~\}~$ +criteria (simply because +it +% Reverse$(\, \Uxp \,)~$ + has the opposite +goodness +property as +$\,\Uxp \,$ ). +Also, if +$~Z~$ +denotes the axiom system of + $~\theta \cup B^\xi \, + \, $Reverse$(\, \Uxp \,)$, +it is easy to verify +\footnote{\g55 \label{jnorm} +The axiom system + $Z$ must satisfy +\nor1 +because: +\bee +\item +The +quantity +$~2^{ \zzz \theta \, )}$ +is a valid +first component +for $Z$'s norming constraint +because +all the axioms of $~B^\xi~$ are +true in the Standard-M model +and +because +Definition \ref{chg} +implies +all of +$ \theta \,$'s axioms satisfy +Good $\{\,\zzz \theta) \,\}$. +\item +The +quantity $ ~\sqrt{~2^{ \zzz \theta \, )}} ~$ +is a valid +second component +for $Z$'s norming constraint +because + Reverse$(\, \Uxp \,)~$ +is the only $\Sigma_1^*$ sentence belonging to +Z, and because Reverse$(\, \Uxp \,)~$ +satisfies + Good$\{~ \, \tftt \zzz \theta) \, ~\}~$. +\ene} +that $~Z\,$'s axioms +will +satisfy the +\nor1 +criteria. + + + +\smallskip + +It is next helpful to observe that what is +a proof from one perspective corresponds to +being a +deduction tree from +a different +perspective. +Thus, Item $~\, + \,$'s proof + $~p~$ +of the +theorem +$ \, \Uxp \,$ +from + the +axiom system of $~\theta \cup B^\xi~$ +corresponds to being a Z-based deduction tree, +with $~Z~$ representing the +axiom system of +$~\theta \cup B^\xi \, + \, $Reverse$(\, \Uxp \,)$. +In this context, +Item $\, + \,$'s +inequality of + Log$(p)~\leq \zzz \theta \, )~+1~ $ +implies +\footnote{ \g55 \label{fd7} +Without loss of generality, we +may assume that +every non-trivial proof $~p~$ satisfies + Log$(p)~\geq ~64~$ (since a +string with fewer than 64 bits is too short to be a +proof). +Then the footnoted paragraph's + Log$(p)~\leq \zzz \theta)~+1~ $ inequality +trivially implies +$~p~<~3^{ \zzz \theta \, )}~$. +In a context where + $~Z~$ +is a +\nor1 +axiom system, +the + latter inequality +certainly +implies +$~p~$, viewed as a deduction tree for $~Z~,~$ +has a small enough G\"{o}del number to + satisfy the +hypothesis for Fact D.3. +(This is because if one sets +$~a~=~2^{ \zzz \theta \, )} ~$ +and +$~b~=~\sqrt{2^{\zzz \theta \, )}} ~$ +then obviously +$ ~~p~<~3^{ \zzz \theta \, )}~ <~4^{ \zzz \theta \, )}~ =~ +(a/b)^4~~~).$ \fend } +$\,$that +$~p~$, viewed as a deduction tree for $~Z~,~$ + satisfies the +hypothesis of Fact D.3 . +Hence, Fact D.3 establishes +that $~p~$ must contain +at least + one contradiction-free +root-to-leaf branch. + +\smallskip + + +This last observation +is all that is needed +to confirm + $~\xi^* \,$'s A-stability, +via a proof-by-contradiction. +This is because the +definition of a semantic tableaux proof implies +every +one of its +root-to-leaf branches +must +end with a pair of +contradicting nodes. +However, the last paragraph showed +$~p~$ +will not satisfy this +required + property, +if $~\xi^*~$ is not A-stable. +Hence +our construction has proven the A-stability of + $~\xi^*~$ by showing that otherwise an infeasible +circumstance will arise. + $~~\Box$ + + + + + +\hgskip + +{\bf Proof of + $ \xi^* $'s E-stability :} +A +proof-by-contradiction +will verify + $ \xi^* $ is +E-stable, analogous + to the + proof of +its + A-stability. +Thus if + $ \xi^* $ was not +E-stable, then +statement $++$ would be true +for some $\theta$. (This is because +at least one +$\theta \, \in \,$RE-Class$(\xi)$ +would then + violate +Definition \ref{estab}'s +requirement of $~**~~$.) +\begin{description} +\item[ ++ ] +There exists a +semantic tableaux + proof $~p~$ +of a $\Sigma_1^\xi$ theorem +$ \, \Uxp \, $ from the +axiom +system $\theta \cup B^\xi$ +such that + Log$(p) \,\leq \zzz \theta) +1 $ +and + $ \Uxp $ also +fails to +satisfy +Good$\{ \tftt \zzz \theta) \,\}.$ +\end{description} +Item $++ $ + implies +Reverse$( \Uxp )$ +satisfies + Good$\{ \tftt \zzz \theta) \}$ +(because Reverse$( \Uxp )$ again + has + the opposite +goodness property +as +$ \Uxp $ ). +Let +$Z$ now +denote the formal axiom system of + $\, \theta \cup B^\xi \, + \, $Reverse$( \Uxp )$. +The footnote \footnote{ \sm55 +The axiom system + $~Z~$ must satisfy +\xor2 +because: +\bee +\item The first component of its norming constraint +can be set equal to + $ ~\sqrt{~2^{ \zzz \theta \, )}} ~$ +because Reverse$(\, \Uxp \,)~$ +is a + Good$\{~ \, \tftt \zzz \theta \, ) \, ~\}~$ +$\Pi_1^*$ sentence, and all $~Z\,$'s other +$\Pi_1^*$ sentences satisfy more relaxed constraints. +\item The second component of $Z$'s norming constraint +is satisfied by the constant of +2 because Definition D.\ref{D2-def} implies this +quantity is always permissible +when $~Z~$ +contains no $\Sigma_1^*$ axiom sentences. +\ene \fend } +then + uses +reasoning +similar +to footnote \ref{jnorm} +to +show +$Z$ +satisfies +\xor2 + +\parskip 3pt + +\smallskip + +As before +via a simple change in notation, + $~p\,$'s +semantic tableaux proof of +$ \, \Uxp \,$ +can be viewed +as + a deduction tree +using $~Z\,$'s +axioms. +Also as before, we may +use the combination of the facts that + $~Z~$ is a +\xor2 system +and that Item ++ +indicated + Log$(p) \,\leq \zzz \theta) +1 $ to +deduce\footnote{\sm55 The proof that + $~p~$ is + small enough to satisfy +Fact D.3 's +hypothesis in the current E-stable case +is almost +identical to Footnote \ref{fd7}'s analysis of +the A-stable case. +Thus as in the earlier case, +Item ++'s inequality of + Log$(p)~\leq \zzz \theta)~+1~ $ +trivially implies +$~p~<~3^{ \zzz \theta \, )}~$. +Also, we may again assume that + Log$(p)~\geq ~64~$ (since a sequence with fewer than 64 +bits cannot amount to a proof of any interesting fact under +all normal coding conventions). +An analog of Footnote \ref{fd7}'s chain of inequalities +will then allow us to conclude that +$~p~$ +is + small enough +proof from a +\xor2 +system +to + satisfy the +hypothesis for +Fact D.3. \fend } that + $~p~$ is small enough to satisfy +Fact D.3 's +hypothesis. + Hence once again, +Fact D.3 implies that +$~Z~$ must contain +at least + one contradiction-free +root-to-leaf branch. +As before, the existence + of this +contradiction-free +path +violates the definition of a semantic tableaux proof +and +enables + our proof-by-contradiction to +reach its +desired end. $~\Box$ + +\hgskip + + + +{\bf Remark D.5} {\it (about +Theorem D.\ref{D.4-theorx}'s +significance) :} +Part-ii of + Definition +D.\ref{D1-def} +indicated $~\xi^* \,$'s base axiom of +$~B^*~$ was a Type-A formalism that recognized addition +as a total function. This is significant because + \cite{ww0,ww2,ww7,ww9} +showed +nearly all Type-M formalisms, including +all the common axiomatizations for +I$\Sigma_0$, +are unable to recognize their +semantic tableaux consistency. +Thus, the declaration that multiplication is a total +function +is {\it the trigger-point} causing +\footnote{\sm55 +We formally proved in \cite{ww0,ww2,ww7,ww9} +that +multiplication's totality property +causes + the semantic tableaux version of the Second +Incompleteness Theorem to become active. +The + Example \ref{ex3-3} +summarizes the main +%%% +%%% offers a +%%% % nice brief +%%% summary of the +%%% % underlying +%%% + intuition behind these +results.} +the semantic tableaux version of the +Second Incompleteness Theorem +to become active. +This threshold effect is +significant +% quite tight +because +Theorem D.4, combined with +Theorems + \ref{pqq4}, \ref{pqq5}, G.2 and G.3, +formalize {\it four different respects} in which +Type-A +self-justifying +formalisms can +prove all +Peano Arithmetic's + $\Pi_1^*$ theorems +{\it ( after} multiplication's totality axiom is suppressed). + +\cvt + + + +\subsection*{D-3. $~$Three Further Examples of +Stable Generic Configurations} + + + + +Our second +example +of an + EA-stable + configuration +is +called $~\xi^{**}~$. +It will be identical to + $~\xi^*~$ except that it will replace +semantic tableaux with a stronger +deduction method, +which +\cite{ww5} + called Tab$-U_1^*$. +The latter +is a +revised version of +semantic tableaux +that permits + a modus ponens +rule to perform +deductive cut + operations on +$\Pi_1^*$ +and $\Sigma_1^*$ sentences. +(The formal +definition of + Tab$-U_1^*$ +deduction +had appeared in \cite{ww5}. +It will be +unnecessary to + repeat here.) + + + + +The Section 5.3 of +\cite{ww5} +noted +Tab$-U_1^*$ +has + similar self-justification properties +as conventional semantic tableaux. +%It is thus unnecessary to discuss +%Tab$-U_1^*$ in detail here. +All the results that +Section D-2 +proved about + $~\xi^{*}~$ +% , +% however, +apply also to $~\xi^{**}~$, +via their natural generalization +under +\cite{ww5}'s +Tab$-U_1^*$ +deduction +method. +Thus, + $~\xi^{**}~$ +is also EA-stable. + + +%%%%% +%%%%% +%%%%% Our second +%%%%% example +%%%%% of an +%%%%% EA-stable +%%%%% configuration +%%%%% is +%%%%% called $~\xi^{**}~$. +%%%%% It will be identical to +%%%%% $~\xi^*~$ except that it will replace +%%%%% semantic tableaux with a stronger +%%%%% deduction method, +%%%%% which +%%%%% \cite{ww5} +%%%%% called Tab$-U_1^*$. +%%%%% The latter +%%%%% is a +%%%%% revised version of +%%%%% semantic tableaux +%%%%% that permits +%%%%% a modus ponens +%%%%% rule to perform +%%%%% deductive cut +%%%%% operations on +%%%%% $\Pi_1^*$ +%%%%% and $\Sigma_1^*$ sentences. +%%%%% (The +%%%%% definition of +%%%%% Tab$-U_1^*$ +%%%%% deduction +%%%%% appeared in \cite{ww5}. +%%%%% It +%%%%% is unimportant to +%%%%% repeat here.) +%%%%% +%%%%% +%%%%% +%%%%% +%%%%% The Section 5.3 of +%%%%% \cite{ww5} +%%%%% noted +%%%%% Tab$-U_1^*$ +%%%%% has +%%%%% similar self-justification properties +%%%%% as conventional semantic tableaux. +%%%%% It is thus unnecessary to discuss +%%%%% Tab$-U_1^*$ in detail here. +%%%%% %% +%%%%% %% +%%%%% %% We will not +%%%%% %% go into the full details +%%%%% %% again, +%%%%% %% for the sake of brevity. +%%%%% %% +%%%%% %% +%%%%% All the results that +%%%%% Section D-2 had +%%%%% proved about +%%%%% $~\xi^{*}~$ +%%%%% % , +%%%%% % however, +%%%%% apply also to $~\xi^{**}~$, +%%%%% via their natural generalization +%%%%% under +%%%%% \cite{ww5}'s +%%%%% Tab$-U_1^*$ +%%%%% deduction +%%%%% method. +%%%%% Thus, +%%%%% $~\xi^{**}~$ +%%%%% is also EA-stable. + + + +A key point is that + there is a +non-trivial +distinction between +$ \xi^{*} $ +and $ \xi^{**} $, despite +the fact that they +have +similar technical qualities. +This is because + $ \xi^{**} $ contains a +Level-1 +modus ponens rule +(unlike $ \xi^{*} $ ). + If +it were infeasible to expand $ \xi^{*} $ +into +a broader + $ \xi^{**} $, $ $then both formalisms could, +perhaps, + be easily +dismissed as having +negligible pragmatic +significance (since +modus ponens is central +to +cogitation). +However in a context where $ \xi^{**} $ does permit +a Level-1 +modus ponens rule, +it is a tempting formalism +(despite its limited modus ponens rule). + + + + +Unlike + $~\xi^{*}~$ +and $~\xi^{**}~$, +our third +example of an EA-stable +configuration, +called $~\xi^{-}~$, +will support an unlimited modus ponens +rule. +This will be possible because + $~\xi^-\,$'s +language of $~L^-~$ +will +be weaker than the languages of + $~\xi^{*}~$ +and $~\xi^{**}~$. +Thus $~L^-$ will +include + the six Grounding functions, but +not the Growth functions of addition and doubling. +It will thus treat addition and multiplication as +3-way atomic predicates, + Add$(x,y,z)$ +and Mult$(x,y,z)$, rather than as +formal functions. + + +\cvt +\parskip 2pt + + + +This +perspective +enabled $~\xi^-~$ to +support an evasion of +the Second Incompleteness Theorem with +an unlimited modus ponens rule +present, +in a context where +the other four parts of +its +generic configuration are defined below: +\bee +\item +The + $~\Delta_0^{-}~$ +class for $~\xi^-~$ +will +be built in an +essentially natural + manner from +the Grounding function +set. +It will +thus +include +all formulae in $~L^- \,$'s language, +whose +quantifiers +are bounded + in any arbitrary manner +using +the Grounding function +primitives. +\item +The +base axiom system +$~B^-~$ of $~\xi^-~$ + will +employ an infinite number of constant symbols, +denoted as +$ K_1 , K_2 , K_3 , \, ... $ +where + $K_1=1$ +and where + $K_{i+1}$ is +a power of 2 + defined by the axiom of: +\beq +\label{addc} +\mbox{Add}(~K_{i}~,~K_{i}~,~K_{i+1}~) +\enq +Thus, the combination of +$ K_1 , K_2 , K_3 , \, ... $ +with the +Grounding function +of subtraction allows +the language $L^-$ +to encode the value of any +arbitrary natural +number (as +Part 1 +of Definition \ref{def3.3} +had required). +Essentially, +$~\xi^- \,$'s +base axiom system +of $~B^-~$ +can +be any +consistent +r.e. set of +$~\Pi_1^-~$ sentences +that includes \eq{addc}'s axiom schema +and is +able to +prove every + $\Delta_0^{-}~$ sentence which is valid +in the Standard-M model. +\item +$~\xi^- \, $'s +deduction method can be any version of a classic +Hilbert-style proof methodology. (Thus, it will include +a modus ponens rule with no restrictions.) +\item +$~\xi^- \, $'s +G\"{o}delization method can be essentially +any natural technique. +\ene +An interesting aspect of $\xi^-$ +is it can be +proven to be +EA-stable +via an analog of +Section D-2's treatment of $\xi^*$. +Thus, +Theorem \ref{pqq4} +implies +every axiom system +$\alpha$, +whose + $\Pi_1^-$ theorems +hold true +in the Standard-M model, +can be mapped +onto an extension of $\xi^-\,$'s base +axiom system +that can + recognize +its own +Hilbert + consistency +and +prove +$\alpha $'s $\Pi_1^-$ theorems. +Except for +minor changes in notation, +this +result +represents a new way of proving +\cite{wwapal}'s Theorem$\, 3.~$ + + + + + + +\medskip + + + +The self-justifying features +of + $ \xi^{*} $, $ \xi^{**} $ and $ \xi^{-} $ +are of interest +primarily + because +the +Second +Incompleteness Theorem implies +that they +cannot be +improved +much +further. +This tight fit is +summarized by Items 1-4. +\begin{enumerate} +\topsep -15pt +\item +The Theorem 2.1 +(due to the combined work of +Nelson, +Pudl\'{a}k, +Solovay and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} ) +implies no natural axiom system can +prove Successor is a total function and recognize its own +Hilbert consistency. This theorem +thus explains why +the presence of +growth functions +must be omitted from + $\xi^{-}\,$'s +base axiom system of $B^-$. +\item +Moreover, \cite{wwapal} + proved +$~\xi^{-} \,$'s method +for evading +the Second Incompleteness +Theorem +will +collapse +if one replaces +\ep{addc}'s ``addition-based named sequence'' of +constant symbols +$ K_1 , K_2 , K_3 , \, ... $ +with a faster +growing +``multiplicative +convention'', +where +the +constant symbols +$ C_1 , C_2 , C_3 , \, ... $ +are formally defined via +\eq{multc}'s + schema. +\beq +\label{multc} +\mbox{Mult}(~C_{i}~,~C_{i}~,~C_{i+1}~) +\enq +Thus, \cite{wwapal} showed that there +exists a + $\Pi_1^{-}$ sentence $ \,W \,$ +(provable from Peano Arithmetic) +such that no consistent system can +simultaneously prove $W$, +contain \eq{multc}'s axiom schema and prove the non-existence +of proof of $0=1$ from itself. +There is no space to prove it here, but +a generalization of the Second Incompleteness +Theorem implies the modification +of $\xi^-$ that replaces +\eq{addc}'s axiom schema with +\eq{multc}'s schema +{\it is not even 0-stable.} +\item +Similarly, +\cite{ww2,ww7} proved that if + $ \, \xi^{*} \, $'s and $ \, \xi^{**} \, $'s + base + axiom system of +$ \, B^* \, $ +was strengthened +to include the assumption that +multiplication was a total function then \cite{ww5}'s +two +semantic tableaux evasions of +the Second Incompleteness Theorem would +both collapse. +\item +Also, \cite{wwlogos} +proved +that an analog of $\xi^{**} \,$'s +evasion of the Second Incompleteness Theorem +will collapse if its +modus ponens rule was expanded to apply to +either $\Pi_2^*$ or $\Sigma_2^*$ sentences. +\ene +The Item 3 +is especially interesting because +\cite{ww6} +proved \cite{ww5}'s evasion of the Second Incompleteness +Theorem +was compatible with its formalism recognizing +an infinitized generalization of a +computer's floating point multiplication +as a total function. +Thus + while the semantic tableaux formalisms +of + $\xi^{*}$ or $\xi^{**}$ +are provably unable \cite{ww2,ww7} to + recognize integer +multiplication as a total function, +their relationship to floating point multiplication +is +more subtle. + + + + + + +\smallskip + + + + + + + + + + + + + + +Our fourth example of an +application of Section \ref{sect64}'s theorems +was stimulated by +some +insightful +email we +received from +L. A. Ko{\l}odziejczyk +\cite{Ko5} in 2005. +It noted +there existed a +potential + exponential gap between the lengths +of semantic tableaux and Herbrand-style proofs +under some +circumstances. +Our earlier research \cite{ww2} +addressed a +1981 Paris-Wilkie open question \cite{PW81} +by +generalizing some +Adamowicz-Zbierski techniques +\cite{Ad2,AZ1} +to show +a natural axiomatization of I$\Sigma_0$ + satisfied the semantic tableaux version of the Second +Incompleteness Theorem. +In this context, +Ko{\l}odziejczyk +asked whether this would +apply to all +plausible axiomatizations for I$\Sigma_0$ ? + + + + + + + +We replied in +\cite{ww9} +to +Ko{\l}odziejczyk's +stimulating question + by +distinguishing between Example \ref{ex3-1}'s +$\Delta_0^A$ +and $\Delta_0^R$ formulae +and by using +the Paris-Dimitracopoulos \cite{PD82} +translation algorithm for +$\Delta_0$ formulae. (The latter procedure was summarized +earlier by + Lemma \ref{lex22}. It +demonstrated + how to + map +classic arithmetic's +$\Delta_0^A$ formulae +onto equivalent +$\Delta_0^R$ formulae +in the Standard-M +model.) Our reply to +Ko{\l}odziejczyk's +question, +thus, +employed this +translation methodology to show that there existed an axiom system, +called Ax-3, which proved the identical set of theorems as +the more common Ax-1 and Ax-2 encodings of + I$\Sigma_0$ and which possessed the following +pair of +quite +fascinating + contrasting properties: +\bed +\topsep -3pt +\item[ A ] +No +consistent + superset $~\beta~$ of Ax-3's set of axioms is capable of +proving its +own + semantic tableaux consistency \cite{ww9}. +\item[ B ] +In contrast, +if ``Herb'' denotes +the next paragraph's + Herbrand-styled deduction +and if ``SelfRef'' denotes +the sentence $~\bullet~$ from +Section \ref{secc1}, +then +Ax3$\, + \,$SelfRef(Ax-3,Herb) will +be a self-justifying axiom system. +%%% +%%% +%%% In contrast, +%%% if ``Herb'' denotes +%%% the next paragraph's +%%% Herbrand-styled deduction +%%% method +%%% then +%%% Ax3$\, + \,$SelfRef(Ax-3,Herb) will +%%% satisfy both Parts (i) and (ii) of +%%% Section \ref{secc1}'s +%%% definition of +%%% self-justification. +%%% +%%% +\ennd + +The intuition behind \cite{ww9}'s proof of Items A and B can be +easily summarized if +we define a + ``Herbrandized-style'' proof of a +theorem $ \,\Phi \,$ from an axiom system $ \, \alpha \,$ +as being an essentially +2-part +structure where: +\bee +\topsep -3pt +\item Each of $\alpha$'s axioms and +also the sentence $~ \neg \Phi~$ are +first written as Skolemized +expressions. +\item +A propositional calculus proof +is then used to show + that some formal conjunction +of instances of Item 1's Skolemization schema has no satisfying +truth assignment. +\ene +Such a + formalism is +different from the definition +of a semantic tableaux proof (appearing in for example Fitting's +textbook \cite{Fi90} ). +This is because the latter replaces the use +of Skolemization in Items 1 and 2 with an existential quantifier +elimination rule. It turns out that this distinction enables +some semantic tableaux proofs to be exponentially more compressed +than their Herbrandized counterparts, +as Ko{\l}odziejczyk observed +\cite{Ko5,Ko6}. This fact + enabled \cite{ww9} +to prove that Herbrandized and semantic tableaux proofs +have the divergent properties summarized by Items A and B. + + +One reason +Ax-3's evasion of the Second Incompleteness Theorem +is of interest is that I$\Sigma_0$ supports many more generalizations +of the Second Incompleteness Theorem +than evasions +of it. + Thus, +Willard \cite{ww2,ww7,ww9} +proved that the semantic tableaux version of +the Second Incompleteness Theorem +was valid for three different encodings of +I$\Sigma_0$, and +Adamowicz, Salehi and Zbierski +have discussed in great detail +\cite{Ad2,AZ1,Sa11} + various Herbrandized generalizations +of the Second Incompleteness Theorem for +particular encodings of +I$\Sigma_0$ +and I$\Sigma_0+\Omega_i$. +Moreover, an added +facet of \cite{ww9}'s +Ax-3 encoding for I$\Sigma_0$ is that most automated +theorem provers use a +particular +variant of the Resolution method +that causes \cite{ww9}'s +unusual +methodology +to apply +also to them \footnote{ +\b55 +The main theorems in \cite{ww9} generalize for resolution because +Resolution-based theorem provers +employ skolemization analogously to Herbrand deduction. \fend }. + + +The reason for our +%particular +interest in +\cite{ww9}'s results +% in the current article +is that it represents a fourth example +%% of +where the + meta-theorems from Sections +\ref{3uuuu3} and \ref{sect64} +can be useful. +Thus, +the footnote +\footnote{\b55 The +discussion in \cite{ww9} + did not +technically +use + Definition \ref{estab}'s machinery +to establish +%that +there existed an extension of +its ``Ax-3'' encoding for +I$\Sigma_0$ that could recognize its own Herbrand consistency. +Its formalism, +however, + could be +easily couched in terms of + Definition \ref{estab}'s machinery, if one uses a +generic +configuration $~\xi^R~$ where +\bee +\item $~\xi^R\,$'s +base language is the same as the usual language of +arithmetic, +\item $~\xi^R\,$'s +$~\Delta_0^R~$ sub-class is defined by +Item (b) in Example \ref{ex3-1}, +\item $~\xi^R\,$'s +base axiom system +is \cite{ww9}'s ``Ax-3'' system, +\item $~\xi^R\,$'s +deduction method +is either a Herbrandized styled-method +or a Resolution system that relies upon +Skolemizatin in a similar manner. +\item $~\xi^R\,$'s G\"{o}del encoding scheme +may be any such +natural method. +\ene +This approach +supports a +% somewhat + stronger form of +self-justification result +than +had +appeared in \cite{ww9}. +This is +because $~\xi^R~$ can be proven to be E-stable (by a +% straightforward +generalization of \cite{ww9}'s analysis +techniques). +Thus, + \phx{ppp2} +implies +that +Ax-3 has a well-defined self-justifying extension +that +can recognizes its own +formalized + Level$(0^R)$ consistency. +(This +self-justification result +is stronger than +\cite{ww9}'s main theorem. +The latter +merely established +that some extension of Ax-3 +recognized the non-existence of a +Herbrandized deduction of $0=1$ from itself.) \fend } +summarizes how a fourth +type of +generic configuration, +called $~\xi^R~$, +can be defined + that both duplicates +\cite{ww9}'s +main + self-justification results +under the above definition of +Herb-deduction, +as well as strengthens +them. (In particular, + $~\xi^R~$ meets +Theorem \ref{ppp2}'s +requirements, +and self-justifying +extensions of its Ax-3 system thus +recognize their +%own + Level$(0^R)$ consistency.) + + + + +\parskip 2pt + + + + + +The properties of our +four generic configurations of $~\xi^R$, + $~\xi^*~$, + $~\xi^{**}~$ and $~\xi^-~$ are summarized by Table I. +These configurations are +listed in ascending order according to the strength +of their deduction methods $~d~$. As their deduction methods +increase in strength, +these configurations +% the associated configurations +have +their ability +reduced +%weakened + to recognize +the totality of +the addition and multiplication operations. +%% +%% +%% (This is because the corresponding generic configurations will +%% violate the requirements of the Second Incompleteness Theorem, +%% if they simultaneously use too strong a deduction method +%% and possess too strong an understanding of their +%% own consistency.) + + + + + +$~\xi^R\,$ is thus a Type +Almost-M +system +that +can prove multiplication is a total function +(but +which +does not contain +\ep{totdefsymbm}'s + totality statement {\it as an axiom)}. +On the other hand, $~\xi^-~$ +uses a stronger Hilbert-styled + deduction methodology, +which is incompatible with treating +the totality of addition or multiplication as either +axioms {\it or as derived theorems.} +%% (This incompatibility is unavoidable because the +%% Theorem 2.1, due to the joint work of +%% Nelson, +%% Pudl\'{a}k, +%% Solovay and Wilkie-Paris +%% \cite{Ne86,Pu85,So94,WP87}, +%% implies that self-justifying systems cannot simultaneously +%% recognize successor as a total function and prove their +%% own Hilbert consistency.) + + + + + + +Each of Table I's +rows + $ \, \xi^R$, + $ \, \xi^{**} \, $ and $ \, \xi^- \, $ +are maximal (in that an alternate row +improves upon one column's measurement +only when it is +weaker from the perspective of +another +column). +Only $ \, \xi^* \, $ +is +an exception to this rule: It is +strictly +weaker +\footnote{\b55 \label{f28} $ \xi^{**} $ employs a stronger +deduction method +than $ \xi^* $ +because it allows a modus ponens rule for $\Pi_1^*$ and +$\Sigma_1^*$ sentences to be added to semantic tableaux +deduction +(see \cite{ww5} for the precise definition of this +``Tab$-U_1^*~$'' + modification of the semantic tableaux +deductive method). \fend } + than + $ \, \xi^{**} $. + This appendix has discussed + $ \, \xi^* \, $ +%% despite its sub-optimality, +%% %primarily +%% partly +because it makes + Theorem D.\ref{D.4-theorx}'s proof simpler + (and also because + semantic tableaux + % deduction + is a + % very + frequent topic in the logic literature). + + %%%footnnnnnnnnn + + + +%\smallskip + +\begin{center} +{\bf Table I} +\end{center} + + +\bigskip + +\small +\baselineskip = 1.1 \normalbaselineskip +\noindent +\begin{tabular}{|c|c|c|c|c|c|c|} \hline +Name & Deduction Method & Type & Almost & Type & {\bf Axiom} +& {Self-Just } \\ + & & {\bf A} +& {\bf M} & {\bf M} & { Format} & { Level} +\\ \hline\hline + & Resolution and/or & & & & & \\ + $\xi^R$ & Herbrandized analogs & Yes$^{35}$ + & Yes & No & E-stable &Level $(0^R)$ \\ \hline + & & & & & & \\ + $\xi^*$ & Semantic Tableaux & Yes & No & No & EA-stable & Level $(1^*)$ \\ \hline + & & & & & & \\ + $\xi^{**}$ & Tab$-U_1^*$ Deduction$\, ^{34}$ & Yes & No & No & EA-stable &Level $(1^*)$ \\ \hline + & & & & & & \\ + $\xi^{-}$ & Hilbert Deduction & No & No & No & EA-stable & + Level $(\, \infty^{-} \,)$ \\ \hline +\end{tabular} + +%\njp + +\bigskip +\normalsize +\cvl + + +%\cvt + +\parskip 0pt + +%\nskip +%\nskip + +\bigskip +The footnote +\footnote{\b55 For the sake of simplicity, + the Ax-3 system of \cite{ww9} did not + use either + Equations + \eq{totdefxa} or + \eq{totdefsymba}'s + as axiom statements +(since they were +provable as theorems). + All + \cite{ww9}'s + results + do, +however, generalize +% readily + when +\eq{totdefxa}'s +statement about +addition's totality +is included as +%added +an axiom. +Thus, it is appropriate to attach the designation +of ``Yes'' with a caveat to the ``Type-A'' entry +in Table I's first row. (This row is called +``Resolution and/or Herbrandized analogs'' +because it applies +to +essentially +any deduction scheme that relies upon Skolemization +as an alternative to \cite{Fi90}'s +semantic tableaux +existential quantifier elimination rule.)} , + attached to Table I's first row, +explains why a caveat is attached to its first +``Yes'' entry. +The theme of Table I is +%thus +that self-justifying +axiom systems have some nice redeeming features, +although +the + Second +Incompleteness Theorem +clearly also +imposes +severe + limits on their abilities. +This point will be reinforced +when +Appendix E introduces a generalization of the +Second Incompleteness Theorem, +that shows +\thx{ppp6}'s translational reflection principle is close +to being a maximal feasible result, and when Appendix F +discusses the epistemological significance +of self justification. + + +%% +%% the next two sections discuss +%% hybridizations of +%% Theorems \ref{pqq4} +%% and \ref{pqq5} +%% and the epistemological implications +%% of self justifying systems. + + + +%% +%% an alternate system +%% and when +%% Appendix F discusses the +%% epistemological implications +%% of self justification. + + +%% +%% the next two sections discuss +%% hybridizations of +%% Theorems \ref{pqq4} +%% and \ref{pqq5} +%% and the epistemological implications +%% of self justifying systems. + +\nskip +\nskip + + +%% +%% an alternate system +%% and when +%% Appendix F discusses the +%% epistemological implications +%% of self justification. + + +\nop + +\section*{Appendix E: A Clarification of +Theorem \ref{ppp6}'s Significance} + +% An Anti-Reflection Principle for +%\LARGE +% \baselineskip = 1.8 \normalbaselineskip + + +It has been known since the time of G\"{o}del that +most conventional +arithmetic +axiom systems will satisfy the following two +invariants: +\bee +\item +They are {\it physically unable} to prove +their own consistency +\item +They are $\Sigma_1$ +complete. This means they can +formally prove any $\Sigma_1$ +arithmetic sentence that holds +true in the Standard-M model, and +they can likewise refute any +$\Pi_1^\xi$ sentence +that is false. +\ene +Let $~\xi~$ denote any generic configuration of the +form \gggcp . This appendix will use the +term {\bf $\xi -$Conventional} to describe any axiom +system that satisfies analogs of the +preceding +%two +conditions for generic configurations. +Thus +$~\alpha~$ is +$\xi -$Conventional +iff it satisfies the following two +criteria: +\bed +\item[ a. ] +The axiom system $~\alpha~$ +will be {\it unable} to verify +its own consistency under $~\xi\,$'s +deduction + method of $~d~$. +\item[ b. ] +The axiom system $~\alpha~$ +will be an extension of $~\xi \,$'s base axiom of $~B^\xi~$. +Part-3 of Definition \ref{def3.3} will thus imply it +is +$\Sigma^\xi_1$ +complete. (Hence, $~\alpha~$ can +formally prove any $\Sigma^\xi_1$ sentence that holds +true in the Standard-M model, and +it can likewise refute any +$\Pi^\xi_1$ sentence +that is false.) +\ennd + +This section will prove no analog of \ep{T-reflect}'s +translational reflection principle is feasible for +$\xi -$Conventional axiom systems. Thus, +Theorem \ref{ppp6} must be close to being a maximal result, +since it cannot +plausibly +be further extended to hold under conventional axiom systems. + +\medskip + +{\bf Theorem E.1} (A New Type of Version of the Second Incompleteness +Theorem): +{\it +There exists no +$\xi -$Conventional +axiom +system $~\alpha~$ +that can prove the validity of +\eq{G-reflect}'s +Translational Reflection Principle +for any translation-mapping T.} +(In other words, +there exists no + algorithm $~T~$ that +maps +$~\Pi_1^\xi$ sentences $~\Psi~$ +onto alternate $~\Pi_1^\xi$ +sentences +$~\Psi^T~,~$ +which + are equivalent +to $~\Psi~$ +in the +Standard-M model +and where $~\alpha~$ can +verify +\eq{G-reflect}'s reflection principle for every +$~\Pi_1^\xi$ + sentence $~\Psi .~)$ +% +%simultaneously +%for +% all $~\Pi_1^\xi$ sentences +% $~\Psi~$.) +\beq +\label{G-reflect} +\forall ~p~~~[~~ \mbox{Prf}_{\alpha,d}(~\lceil \, \Psi \, \rceil~,~p~) + ~~~ \Rightarrow ~~~ \Psi^T~~] +\enq + + +{\bf Proof:} $~$It is easy to prove Theorem E.1 via a +proof-by-contradiction. Thus consider the possibility +that Theorem E.1's translational mapping $~T~$ did exist. +One can then easily select a $~\Pi_1^\xi$ sentences $~\Psi~$ +that is false in the +Standard-M model. +Then +$~\Psi^T~$ is also false under the +Standard-M model +(since + $~\Psi~$ +and +$~\Psi^T~$ +are equivalent in this model). + + +%% Moreover, $T$'s definition requires +%% $\Psi^T$ +%% to have a $\Pi_1^\xi$ format. +%% Thus, + +Hence +Part-b of the definition of +$\xi -$Conventionality implies +$~\alpha~$ must prove +$~\neg~\Psi^T$ + (on account of $~\Psi^T\,$'s +$\Pi_1^\xi$ format). + + +It is at this juncture that our proof-by-contradiction will +reach its end. This is because if $~\alpha~$ can prove +\eq{G-reflect}'s statement +and +{\it also prove} + the sentence $~\neg~\Psi^T~$, + then it +certainly can combine these two facts to prove the +non-existence of a proof of $~\Psi~$. +The latter +contradicts +Part-a of the definition of +$\xi -$Conventionality (because it shows $~\alpha~$ +can verify its own consistency). $~~\Box$ + + +%% The latter would +%% contradict +%% Part-a of the definition of +%% $\xi -$Conventionality (because it would show $~\alpha~$ +%% can verify its own consistency). $~~\Box$ + +\bigskip + +{\bf Remark E.2.} +We remind the reader that +Footnote \ref{imper} +pointed out that +$T$'s translational mapping +would lose its main functionality, if +it did not require $\Psi^T$ +to have a $~\Pi_1^\xi~$ format, +similar to $\Psi$. +In essence, +Theorem E.1 is +of interest +because it shows that +Theorem \ref{ppp6}'s evasion of the Second Incompleteness Theorem +is close to +being a maximal result. +%(because +(It thus shows that \eq{G-reflect}'s +translational reflection principle does not generalize +to conventional +axiom systems.) +%settings.) +This +dichotomy +may explain why self-justifying axiom systems, +along with Theorem \ref{ppp6}'s +particular + invariant, +are +potentially useful results. + +%surprising topics. + + + % {\bf Remark E.2.} +% The +% preceding proof +% of Theorem E.1 makes it +% clear +% that its generalization of the +% Second Incompleteness Theorem +% is a +% straightforward +% result. It is + + + +\cvl + + + + + +\section*{Appendix F: Epistemological +Perspective and Speculations} + + + +\cvs + +\parskip 6pt + +It is desirable to include a short +purely +epistemological +discussion +within this +mostly mathematical article so that +the more subtle nature of our + results +cannot be +misconstrued. + +Part of the reason +Self Justification +can lend itself +to +easy +misinterpretations is that +the +First Incompleteness Theorem +demonstrates +the +impossibility of +constructing an ideally +optimal axiomatization of number theory. +For +any initial +r.e$. \,$axiom system $~\alpha~$ +and deduction +method$~d$, +G\"{o}del +thus +noted +it is +easy +\footnote{ \b55 +Let $\mho(a,d)$ the +classic + G\"{o}del +sentence +that asserts: +{\it ``There is no proof of {\it this sentence} from +$\alpha$'s +axiom system +under $\,d$'s deduction method.''} +G\"{o}del +\cite{Go31} + noted +$~\alpha+\mho(\alpha,d)~$ +always proves more theorems than $\alpha$.} + to +develop + an extension of $~\alpha~$ +that can prove +strictly more +theorems than $~\alpha~$ under + $\,d$'s +deduction method. +Moreover, a large number of generalizations of the Second Incompleteness +Theorem, starting with its 1939 +Hilbert-Bernays version +\cite{HB39}, are known to be +%very +robust results. + +Such considerations +naturally lead to questions +about whether +any + r.e$. \,$axiom system can encompass the workings +of the human mind. It may surprise some readers to learn +that this author +shares +such + skepticism. +That is, +we +doubt +{\it any single ISOLATED} self-justifying +r.e.$\,$logic +can {\it fully} approximate +the complex workings of the human mind. + + +In this short appendix, +let us instead +view cogitation +as +{\it roughly} a +process wondering +though some universe $ \, \nal{U}$, +comprised of +{\it both} consistent and +inconsistent axiom systems, +with a +trial-and-error evolutionary method +focusing + its attention +over time +increasingly +onto + the members of this universe + $~ \nal{U}~$ that are found to be + consistent. +It is +% +%%notre +% +% +%%notre-only straightforward +% +%easy +% +%%cccorn-ff +%%cccorn-cc + straightforward\footnote{ \b55 It + is trivial from a theoretical perspective + to design a + learning heuristic that + will utilize all + consistent axiom systems + from + its available universe $ \nal{U}$ + eventually, and + it will + spend only an infinitesimal fraction of its effort on + inconsistent systems as time runs to infinity. + (This because + there exists only + a countable number of distinct r.e. sets + belonging to the universe + $ \nal{U}.~)~$ + Also, + this + learning + process can + presumably be made to + employ + some type of + smart souped-up + AI heuristics to enhance its efficiency, + whose details will not concern us + % here + in this abbreviated 3-page appendix. + What is + central to the current discussion + is that some type of formally + {\it non-recursive} + and presumably trial-and-error + method must + obviously + be used + by this learning process + to find + the consistent elements of + $~ \nal{U}~,~$ + on account of G\"{o}del's + undecidability results.} + %% + %% + to define +many +universes $~ \nal{U}~$ and + evolutionary processes that +fall into this gendre. +Our +goal +in this section +will be to +examine + Section \ref{3uuuu3}'s +``R-View'' $\theta$ and its RE-Class$(\xi)$. + + + +Thus, $\theta$ will denote an +R-View +that consists of +an arbitrary +r.e$. \,$set of +$\Pi_1^\xi$ sentences. +Also, +RE-Class$(\xi)$ will +again +denote the +set of all +$~\theta~$ which +can be built under $~\xi \,$'s language +of +$\,L^\xi$. +(Section \ref{3uuuu3} +had +allowed + both valid and invalid +R-Views $~\theta$ + to appear in +RE-Class$(\xi)$ because +no recursive +decision +procedure can +identify +all +the Standard-M model's true $\Pi_1^\xi$ sentences.) + +%% \nop + +The epistemological purpose of this notation was revealed +in Section \ref{sect64}. +For the cases where $k = 0$ +or 1, +Section \ref{sect64} +defined +$G^\xi_k(\, \theta \,)$ +to be the +axiom system: +\begin{equation} +\label{f4gedef} +G^\xi_k(~ \theta ~)~~= ~~ +\theta~\cup~B^\xi~\cup~\mbox{SelfCons}^k\{~[~\theta \,\cup \,B^\xi~]~,d~\} +\end{equation} +Also, Definition \ref{dap4-1} indicated that + the function +$ \, G^\xi_k ~ $ +(which maps $ \, \theta \, $ onto +$G^\xi_k(\, \theta \,)~~~)$ would be +called +{\bf Consistency Preserving} iff +$ \, G^\xi_k(\, \theta \,) \, $is +assured to be consistent whenever +all the sentences in $~\theta ~$ +are +true under the Standard-M model. +\thx{pqq3} +indicated, +in this context, + that +$~G^\xi_1~$ +satisfies +this +property +whenever $~\xi~$ is +EA-stable. +Likewise, +$~G^\xi_0~$ +is consistency preserving whenever $~\xi~$ is +one of A-stable, E-stable or 0-stable. + +\nskip + + +These results indicate +a trial-and-error experimental process +can, indeed, walk +{\it in an +unusually +orderly manner} through an universe +of self-reflecting +candidate +formalisms, when +RE-Class$(\xi)$ denotes +$~ \nal{U}\,$'s +universe +and + $~\xi~$ satisfies any of +the EA-stable, E-stable, +A-stable or 0-stable conditions. +This is because if +$~\theta~$ designates +a +set of +$\Pi_1^\xi$ sentences +holding true +in + the Standard-M model, +then +$~G^\xi_k(\theta)~$ +will +{\bf automatically} +satisfy both Parts (i) and (ii) +of Section 1's definition of Self Justification, +according to \thx{pqq3}. + +Such +consistency preservation is +surprising because +it is simply inapplicable to +%does not apply to +the $\,G^\xi_k \,$ +% functions of + functions for +most +pairs $~(\xi,k).$ +\thx{pqq3}'s first + contribution +is, + thus, +that it formalizes +how $G^\xi_k\,$'s mapping function +can +represent + a type of approximation +for +instinctive faith, +under certain well-defined circumstances. + + +This notion of instinctive faith is, of course, +less +robust than a conventional proof. +One +obvious + difficulty +is that a 1-sentence proof, +using an {\it ``I am consistent''} axiom, +is +less convincing +than a full-length proof from first principles. Also, if +the initial formalism $~\theta~$ contains a false +$~\Pi_1^\xi~$ sentence then $~B^\xi+\theta~$ +and $~G^\xi_k(\theta)~$ +will be both inconsistent. + + + +\nop + +\cvl + +Nevertheless +for $\,k\,$ equals 0 or 1, + if $~\theta~$ is comprised of the true sentences +in the Standard-M model, then +\thx{pqq3} +will +assure that +$~G^\xi_k(\theta)~$ is +a consistent system that has an ability +to +use its {\it ``I am consistent''} +axiom sentence +to +formalize +its +own consistency. +Moreover, the axiom system +$~G^\xi_k(\theta)~$ is helpful because +G\"{o}del's famous centennial paper +% has certainly +implicitly +raised +the following +bedeviling +issue: +%dilemma: +\begin{quote} +$\#~~$ How is it that Human Beings + manage +to muster +the physical +drive +to think (and prove theorems) when the many +generalizations of +G\"{o}del's Second +Incompleteness Theorem +demonstrate +conventional logics +lack knowledge of +their own consistency? +\end{quote} +While philosophical paradoxes and ironical +dilemmas, +similar to +$~\# ~,~$ + never yield +perfect answers, the preceding discussion is helpful +because it +explores +a +certain +syllogism +% paradigms +whereby a logic +can +formalize + at least some +fragmented +operational + appreciation of its own consistency. + +Moreover, +Part-3 of Appendix D + indicated that its +four self-justifying configurations were + close to being maximal results +that cannot be +much +improved, +on account of various +barriers imposed by + the Second Incompleteness Theorem. +Thus, these +particular + positive results, +combined with Theorems \ref{ppp1} +\ref{pqq3}, \ref{pqq4}, +\ref{pqq5}, + \ref{ppp6}, +D.4, E.1, + G.2, G.3 and Remarks +\ref{re4-1} and + \ref{recc1}, +come +close to formalizing the +maximal variants of instinctive faith that a +first-order logic can +bolster. + + + +The theme of the last two paragraphs +is +thus + that our approximation of + {\it ``instinctive faith''} may be imperfect, but it +is still a useful partial reply to +$~\# \,$'s puzzling +dilemma +{\it in a context where} +unambiguous +full +resolutions to $\, \# \,$ +{\it are not permitted by} +the Second Incompleteness +Theorem. +Furthermore, +\ep{T-reflect}'s +translational reflection principle, +together with Theorem \ref{ppp6} +and the Remarks \ref{f88} and \ref{remhappy}, +illustrate how the notion of + an instinctive faith +about the usefulness of $\Pi_1^\xi$ theorems + can +be +almost physically +{\it hard-wired} into self-justifying formalisms. + + +%%% instinctive faith +%%% about the validity of $\Pi_1^\xi$ theorems +%%% can +%%% be +%%% almost physically +%%% {\it hard-wired} into self-justifying formalisms. + + + + + + +%%cccorn-ff + + \bigskip + {\bf A Yet Further + Facet + of this Unusual Epistemological Interpretation: } + Let + % us use + the term + {\it Epistemological Bundle Theory} + refer to + the underlying + theory, advanced in this appendix, which + speculates about a + Thinking Agent + % as + walking + through + RE-Class$(\xi)$'s + bundled universe of valid and invalid + collections of $\Pi_1^\xi$ sentences + and + then applying some heuristic to + attempt to + identify + %locate + % locate (via heuristics) + those + % particular elements + $\theta \, \in \,$RE-Class$(\xi)$ + whose sentences are true under the Standard-M model. + + Such a + theory has a second virtue, aside from + % its + addressing $ \# \,$'s + paradoxical question + about the nature + of {\it ``instinctive faith''. } + It also clarifies + the meaning of + our main theorems + %% + %% + %% and simplifies + %% the + %% % mathematical + %% structure of + %% Sections + %% \ref{3uuuu1}-\ref{sect64}'s theorems + %% % formal + %% + %% + and the related + E-stability, A-stability, + EA-stability and + RE-Class$(\xi)$ constructs. + + + %% + %%help + %%analyze + %%%prove their theorems about + %%self-justification. + %%It turns out that + %%%A nice aspect about the + %% epistemological bundling + %%can explain the motivation behind these + %%theorems. + %% + %% + %%*is that it can explain much of the intuition behind + %%* these theorems. + + + This is because the + Items $\, * \,$ and $\, ** \,$ + from the + definitions of + A-stability and E-stability + in Section \ref{3uuuu3} + formalize + how a thinking agent $~T~$ can view short + proofs from a {\it technically inconsistent} axiom system + of $~B^\xi \cup \theta~$ as containing + % some + pragmatically + useful information + {\it under the assumption} that the + lengths + % FIXED ALREADY length's length's length's + of $~T\,$'s proofs {\it are shorter} + than + the errors in + $~\theta\,$'s $\Pi_1^\xi$ styled-statements. + The pleasing aspect + about this + observation, illustrated by + % for example + Remark \ref{re3-1}, + % + % epistemological bundling + is that those same invariants, + $\, * \,$ and $\, ** \,$, + which +%%%%% can + tempt a + thinking agent $~T~$ + to engage in a trial-and-error walk through + RE-Class$(\xi)$'s bundled universe, + %% are + also + %% the invariants that + make + viable + %% the operating prerequisites for making + \thx{ppp1}'s self-justifying formalisms. + + + %active. + + Thus aside from + addressing + $\, \# \,$'s dilemma about the nature of + instinctive faith, + the + % mathematical + meta-formalism in this appendix + is + %was + % also + useful + %in + %venting + % for + in explaining + the + % underlying + motivation behind the + %very + %quite + % fairly + elaborate + network + % labyrinth + of + theorems, proofs and definitions + %raised + that were introduced + % had + %appeared + in this + paper. +In summary, +EA-stable logics are thus + interesting both +in their own right +(as a vehicle + enabling a Thinking Being to partially tolerate +its own errors), and +because +they are useful in explaining +how a Thinking Being +can possess a type of instinctive +faith in its own consistency +(via the +reflection +principles of + Theorem \ref{ppp6} +and +of Remarks \ref{f88} and \ref{remhappy}). + + + + + + +\cvl + +\section*{Appendix G: Improvements upon Theorems \ref{pqq4} +and \ref{pqq5} } + +Let us recall that +Remark \ref{re4-n} indicated that there was a +subtle +trade-off between +Theorems \ref{pqq4} +and \ref{pqq5}, +where neither result was +strictly + better than the other. +This section +will introduce +two hybrid +methodologies, using +Definition G.1's +formalism, that +improve upon \thx{pqq5} +while retaining a large part of \thx{pqq4}'s +nice features. + +\hgskip + +% \cvt +\parskip 2pt + + +{\bf Definition G.1} +Let $~\xi~$ denote +the generic configuration, +whose base axiom system is again denoted as +$ \, B^\xi \,$, +$\,~ \Phi~$ denote any $\Pi_1^\xi$ +sentence +that is true in the Standard-M model +and +$~j~$ denote an index that represents some +predicate + Test$^\xi_j \,$ +lying +in Definition \ref{gsim}'s + TestList$^\xi$ sequence. Then +a +$\,\Pi_1^\xi \,$ sentences $\Psi $ + will be said to be a +{\bf Braced}$^\xi( \, \Phi \, , \, j \, )$ expression when +$~ B^\xi \, + \, \Phi~$ can prove: +\beq +\label{punch} +\{~~~ \forall ~x~~~ +\mbox{Test}_j^\xi(~\lceil~\Psi~\rceil~,~x~) ~~~\} + ~~~~\longrightarrow ~~~~ \Psi +\enq + + +\medskip + + + + + +{\bf Theorem G.2} +{\it $~$Let $ \,\xi \,$ again +denote an arbitrary generic configuration + \gggcp, +and let + $( \nal{B},D)$ again denote any second axiom system and deduction +method whose $\Pi_1^\xi$ theorems are true under the +Standard-M model. +Then for any +integer $~j~$ and for any + $\Pi_1^\xi$ sentence +$~\Phi~$ that is true in the +Standard-M model, + the following invariants +do hold:} +\bed +\item[ i ] +{\it If $ \, \xi \, $ is EA-stable\sss +then there +will exist a self-justifying +$~\beta_j~\supset~B^\xi$ that +can recognize its +Level$(1^\xi$) + consistency, +contains +only {\bf a finite number} of additional axioms +beyond those appearing in +$~B^\xi$, + and which +can +prove +all of $( \nal{B},D)$'s $\Pi_1^\xi$ theorems that +are Braced$^\xi( \Phi ,j)$ expressions.} +\item[ ii ] +{\it Likewise, +if $\xi$ is + E-stable, A-stable or 0-stable +then + a +self-justifying +$\beta_j \supset B^\xi$ +will exist +with the same properties except +that it +recognizes its own +Level$(0^\xi$) + consistency.} +\ennd + +\medskip + + + + +{\bf Proof.} +To justify +Theorem G.2, we must first define +the axiom system $~\beta_j~,~$ +whose existence is claimed by +Items (i) and (ii). +It will be defined to +consist of the union of +the initial base axiom system + $B^\xi$ +with the following three added axiom-sentences. +\bed +\item[ 1 ] +The $\Pi_1^\xi$ sentence $~\Phi~$ +used +by Definition G.1's + Braced$^\xi( \Phi ,j )$ formula. + +\smallskip + +\item[ 2 ] +A GlobSim$^D_{ \nal{B}} \,(\xi,j)$ sentence whose indexing +integer $ \, j \,$ +is defined by Definition G.1. +This global simulation sentence is +thus the statement: +\beq +\label{glob2} +\forall ~t~~ +\forall ~q~~ +\forall ~x~~\{~~ +[~~\mbox{Prf}_{ \nal{B}}^D \,( t , q )~~ \wedge ~~ +\mbox{Check}^\xi(t)~~]~~~ +\longrightarrow ~~~ +\mbox{Test}_j^\xi(t,x) ~~~\} +\enq +\item[ 3 ] +A $\Pi_1^\xi$ sentence + of the form +$\mbox{SelfCons}^k\{~[~\theta \,\cup \,B^\xi~]~,d~\}~$ +where: +\bed +\item[ a ] +$\theta~$ is an R-view +consisting of the two + $\Pi_1^\xi$ sentences defined by +Items 1 and 2. +\item[ b ] +$B^\xi\,$ is $~\xi \,$'s base axiom system, +and +\item[ c ] +$k~$ equals respectively + 1 and 0 under formalisms (i) and (ii). +\ennd +\ennd +Thus, +the system $\beta_j$ +uses identical definitions + under +formalisms (i) and (ii), +except +that +its third sentence will use a different value for +$~k~$. +Our proof of +Theorem G.2 +will require first confirming +the following fact: +\begin{description} +\item[ Claim * ] +The axiom system +$\,\beta_j \,$ (which consists of the union of +$B^\xi$ with the + sentences 1-3) +will have a capacity +to prove every +Braced$^\xi( \Phi ,j)$ +sentence $~\Psi~$ +that is a + $\Pi_1^\xi$ + theorem of +$( \nal{B},D)$. +\end{description} +The proof of Claim * is quite simple. +It will rest on +the following +three +observations: +\bed +\item[ a ] +For each $\Pi_1^\xi$ sentence $\Psi$, +the system $~\beta_j~$ +must certainly +have a capacity to prove +\eq{glob21}'s sentence (which +states +that $~\Psi\,$'s +G\"{o}del number +formally +encodes +a $\Pi_1^\xi \,$ statement). This +is because +\eq{glob21} + is true + in the Standard-M +model + and +because Part 3 of Definition \ref{def3.3} +indicated +that + the +$~B^\xi~$ +sub-component of $~\beta_j~$ +has a capacity to prove + every +$\Delta_0^\xi$ sentence + that is true. +\beq +\label{glob21} +\mbox{Check}^\xi( ~ \lceil \, \Psi \, \rceil ~) +\enq +\item[ b ] +Since +Claim $\,* \,$ specifies + $~\Psi~$ is a theorem of + $( \nal{B},D)$, +there must certainly exist some integer +$~N~$ that is the G\"{o}del number of its proof from + $( \nal{B},D)$. This implies that +\eq{glob22} must be a true +$\Delta_0^\xi$ sentence + under the Standard-M model. +As was the case with \ep{glob21}, this implies +that +it must be provable from +$~B^\xi~$ (because it is a valid +$\Delta_0^\xi$ sentence). +\beq +\label{glob22} +\mbox{Prf}_{ \nal{B}}^D \,( ~ \lceil \, \Psi \, \rceil ~ , ~ N ~ ) +\enq +\item[ c ] +It is apparent that +Equations \eq{glob2}, \eq{glob21} and \eq{glob22} +imply the validity of \eq{glob23}. +Moreover, Part 4 of Definition \ref{def3.3} indicated that +the generic configuration $~\xi\,$'s deduction method +does satisfy G\"{o}del's Completeness Theorem. +This fact assures that +$~\beta_j~$ must be able to prove +\eq{glob23} because it contains +\eq{glob2} +as an axiom and + \eq{glob21} and \eq{glob22} +as derived theorems \footnote{\label{fcomp} \sm55 +Every deduction method $\,d$, +$\,$satisfying G\"{o}del's Completeness Theorem, +will be automatically able to prove +a theorem $~Z~$ +when it contains +$X$, $Y$ and $~(X \wedge Y)~\rightarrow ~Z~$ as +theorems, irregardless of whether or not it contains +an explicit built-in +modus +ponens rule. +Thus $~d~$ can prove +\eq{glob23} because of its knowledge about +\eq{glob2}--\eq{glob22}'s validity.}. +\ennd +\vspace*{- 0.1 em} +\beq +\label{glob23} +\forall ~x~~~ +\mbox{Test}_j^\xi( ~ \lceil \, \Psi \, \rceil ~ , ~ x ~ ) +\vspace*{- 0.1 em} +\enq +Claim $*$ is a +consequence of +Observations a-c. This is because +$ \, \Phi \, $ +is one of $ \, \beta_j \,$'s defined axioms, +and +Definition G.1 +indicated + $ \, B^\xi \, + \, \Phi \, $ was capable of proving +\eq{punch}'s statement + for every Braced$^\xi( \Phi ,j )$ sentence $ \, \Psi \, $. +These facts corroborate Claim $*$ +because they imply +that $ \, \beta_j \, $ +must be able to verify +Claim $\,* \,$'s + sentence + $ \, \Psi \, $ (because + $ \, \beta_j \, $ +can verify statements +\eq{punch} and \eq{glob23}). + + + + + + + +\medskip + +The remainder of +Theorem G.2's proof is +analogous +to +\phx{pqq5}'s proof. +This is because the prior paragraph +established +that $~\beta_j~$ can prove +every + Braced$^\xi( \Phi ,j )$ +theorem of + $( \nal{B},D)$ +(as was required by + Claims i and ii ). +The only +remaining task is to +show that + $~\beta_j~$ is a self-justifying formalism that can +recognize its +Level($1^\xi$) and Level($0^\xi$) +consistencies, +as specified by + Claims i and ii. +This part of +Theorem G.2's + verification +is identical +to +the methods used +to prove +Theorems \ref{pqq3} and \ref{pqq5}. +It +will +thus + not be repeated +here. + $~~\Box$ + + + +\medskip + + + +The last part of this appendix will +require the +following additional + notation to formalize +the main intended application +of +Theorem G.2's +formalism. +\bee +\item +\topsep -7pt + Count$( \Psi )$ will denote +the number of +quantifiers appearing in the sentence $\Psi$ +(including both its bounded and unbounded quantifiers). +\item +Size$^\xi(c)$ +will +denote the set of $\Pi_1^\xi$ sentences +$\Psi$ where Count$( \Psi ) \, \leq \, c \,$. +\ene +Our next theorem will be a specialized +variant of +Theorem G.2, using the +Size$^\xi(c)$ construct. +It will explain the + intended application +of +this +formalism: + + + + +\medskip + + +{\bf Theorem G.3.} +{\it +$~$Let $~\xi~$ denote any one of Appendix D's four sample +generic configurations of $~\xi^*~$, +$~\xi^{**}~$, $~\xi^-~$ or $~\xi^R~$. +Then + for any $~c>0~$, +Theorem G.2's axiom systems +of $~\beta_j~$ +can be arranged so that +they can prove all of + $ ( \nal{B} , D ) $'s +Size$^\xi(c)$ + $\Pi_1^\xi$ +theorems while +simultaneously also + recognizing their: +\bee +\item Level(1) +consistency for the cases +when $ \, \xi \, $ is one of $ \, \xi^* \, $, +$ \, \xi^{**}\, $ or $ \, \xi^-$. +\item + Level(0) consistency when $~\xi~$ is +$~\xi^R~$. +\ene} + +\cvmew + +{\bf Proof Sketch:} +%% +%% There is +%% insufficient +%% space to prove +%% Theorem G.3 here, but its intuition +%% is easy to summarize. +%% +%% + The intuition behind +Theorem G.3's proof is +quite easy to summarize. +For +arbitrary $ c>0 $ +and any +of Appendix D's configurations of + $ ~ \xi^* ~ $, +$ ~ \xi^{**} ~ $, $ ~ \xi^- ~ $ and $ ~ \xi^R ~ $, +it is +routine to + construct an ordered pair $ ~ (\Phi,j) ~ $ where every +$\Pi_1^\xi$ sentence of +Size$^\xi(c)$ is a + Braced$^\xi( \Phi ,j )$ expression. +Theorem G.3's +first claim is, +thus, a +consequence of +Part (i) +of Theorem G.2 + and +the fact that each of + $ ~ \xi^* ~ $, +$ ~ \xi^{**} ~ $ and $ ~ \xi^- ~ $ +are EA-stable. +Likewise, Theorem G.3's +second claim follows from +Part (ii) +of Theorem G.2 + and the fact that +$ ~ \xi^R ~ $ is E-stable, +$~~\Box$ + +\bigskip +\medskip +%\parskip 0pt + +{\bf Remark G.4.} +The Theorems G.2 and G.3 are +of interest because the set of +$\Pi_1^\xi$ sentences of +Size$^\xi(c)$ is a natural class to examine. +It is, +thus, tempting to consider +a system that +recognizes +its own +formal + consistency, uses only a finite +number of axiom sentences beyond those in $~B^\xi~,~$ and +which +can + prove all of + $ ( \nal{B} , D ) $'s + $\Pi_1^\xi$ theorems +of Size$^\xi(c)$. +Such a system +replies to +Remark +\ref{re4-n}'s challenge by +% nicely + hybridizing the properties of +Theorems \ref{pqq4} +and \ref{pqq5}, +%% . +in a seemingly pragmatic manner. + + + + + + +\newpage + +\begin{thebibliography}{99} + + +\baselineskip = 1.15 \normalbaselineskip + +\parskip 6 pt + + + + +\bibitem{Ad2} +Z. 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Willard, +``How to Extend The Semantic Tableaux And +Cut-Free Versions of the Second +Incompleteness Theorem +Almost +to +Robinson's Arithmetic'', +{\it Journal of Symbolic Logic} +$~\,67~ (2002)~$pp. 465--496. + + + +\bibitem{wwlogos} +D. Willard, +``A Version of the +Second Incompleteness Theorem For Axiom +Systems that Recognize Addition +But Not Multiplication as a Total Function'', +{\it First Order Logic Revisited,} +Logos Verlag (Berlin) 2004, pp. 337--368. + +\bibitem{ww5} +D. Willard, +``An Exploration of the Partial Respects in which an Axiom +System Recognizing Solely Addition as a Total Function Can +Verify Its Own Consistency'', +{\it Journal of Symbolic Logic} 70 (2005) pp. 1171-1209. + +\bibitem{ww6} +D. Willard, +``On the Available Partial Respects in which + an Axiomatization +for Real Valued Arithmetic Can Recognize its +Consistency'', +{\it Journal of Symbolic Logic} 71 (2006) +pp. 1189-1199. + +\bibitem{wwapal} +D. Willard, +``A Generalization of the Second Incompleteness +Theorem and Some Exceptions to It''. +{\it Annals of Pure and Applied Logic} +141 (2006) +pp. 472-496. + + + +\bibitem{ww7} +D. Willard, +``Passive induction and a solution to a Paris-Wilkie +question'', +{\it Annals of Pure and Applied Logic} +146(2007) +pp. 124-149. + +\bibitem{ww9} +D. Willard, +``Some Specially Formulated Axiomizations for +I$\Sigma_0$ +Manage to +Evade +the Herbrandized Version of the Second Incompleteness Theorem'', +{\it Information and Computation} +207(2009) 1078-1093 + +\bibitem{Wr78} +C. Wrathall, ``Rudimentary Predicates and Relative Computation'', +{\it Siam Journal on Computing} 7 (1978), pp 194-209 +\end{thebibliography} + + + +\end{document} + diff --git a/nachlass/collected_dew_materials/2011-2019/2011-cornell.tex b/nachlass/collected_dew_materials/2011-2019/2011-cornell.tex new file mode 100644 index 0000000..89ae53a --- /dev/null +++ b/nachlass/collected_dew_materials/2011-2019/2011-cornell.tex @@ -0,0 +1,12161 @@ +%% 2011 dec 31 home suny REVSIONS OF PRIOR DEC21 7.1 am +%%% MINOR REVSIONS OF PRIOR DEC21 +%% primarily in Theorem 2.1 and Remark 6.13 +%% Also few other miniscule changes on pages 9, 37, 52 etc. + +\documentstyle[11pt]{article} + + + + + +\addtolength{\oddsidemargin}{-0.75in} + + + + +\setlength{\textheight}{9.4 in} +\setlength{\textheight}{9.0 in} + + + + +\setlength{\textwidth}{5.7 in} + + + + +\setlength{\textwidth}{6.7 in} +\setlength{\textwidth}{6.5 in} + +\setlength{\textwidth}{6.0 in} +\setlength{\textwidth}{6.3 in} + +\setlength{\textwidth}{5.8 in} +%% PRINT + +%\setlength{\textwidth}{5.6 in} + + + + + + + + + + +\addtolength{\topmargin}{-.95in} +%\addtolength{\topmargin}{+.7in} +%%% delete above for pdf + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +\newtheorem{corollary}{Corollary} +\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} + + + + + + + + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + + \title{A Detailed Examination +of Methods for Unifying, Simplifying and Extending +Several +Results About Self-Justifying Logics} + + + + + + + + + + + + + + + + + + + + + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{This research +was partially supported +by the NSF Grant CCR 0956495. +Email = dew@cs.albany.edu.}} + + + + + + + + + + + + + + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + + + + +\normalsize + + + + +\baselineskip = 1.5\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + + + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + + + +\begin{abstract} + \baselineskip = 1.5 \normalbaselineskip \large + +This paper will develop a single framework for unifying, simplifying +and extending our prior results about axiom systems that retain a +partial knowledge of their own consistency, via an axiomatic +declaration of self-consistency. Its perhaps single most surprising +new result will be its exploration of a viable alternative to +conventional reflection principles. +\end{abstract} + + +\normalsize + +\parskip 8pt + +\baselineskip = 1.4 \normalbaselineskip + +\setcounter{page}{0} + + +\bigskip +\bigskip +\bigskip + +{\bf Keywords:} +G\"{o}del's Second Incompleteness Theorem, Consistency, Hilbert's Second +Open Question, +Semantic Tableaux + +\bigskip +\bigskip + +{\bf Mathematics Subject Classification:} +03B52; 03F25; 03F45; 03H13 + + + +\bigskip +\bigskip + + + +% {\bf Please Cite this Paper as:} +% {\rm http://arxiv.org/abs/1108.6330}, +% appearing in Cornell Archives + + + + + + + +\newpage + +\setcounter{page}{1} + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + + +\def\f55{ \baselineskip = 1.59 \normalbaselineskip } +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.59 \normalbaselineskip } +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\def\nop{ } +\def\nop{\newpage} + +\cvl +\cvnew + + +\def\nop{\newpage} + + +\cvnew +\cvl + +\parskip 3pt + + + +\def\hgskip{ \medskip } + +\def\nop{ } +\def\njp{\newpage} +\def\njp{ } +\def\nop{\newpage} + +\cvl +\cvnew + +\def\nskip{\bigskip} + +\cvl +\cvnew + + +\section{Introduction} + +%% CHANGES REMOVE NEW PAGE IN BIB before willard 2001 + +%% CHANGES = - 3 footnote -ACKN -APPF -TABLE NUMBERS + +%% CHANGES + ww11 Reminder-to-reader Footnote 24 state TABLE + +\label{secc1} +\label{B1-lem} +\label{D1-def} + +\parskip 2pt + + +Let +$~\alpha~$ +denote an axiom system, +and $~d~$ +denote + a +deduction method. +The ordered pair + $~( \alpha , d )$ +will +be called {\bf Self Justifying} when: +\begin{description} + \item[ i ] one of $ \, \alpha \,$'s theorems +states that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +For any $\,(\alpha,d) \,$, +it is +easy +to construct a second +axiom system $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +Part-i of +this definition. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus the following added +sentence, that we call +{\bf SelfRef$(\alpha,d)~$}: +\topsep -3pt +\begin{quote} +$\bullet~~~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} of +the + axiom system $\, \alpha \, $ +with {\it this} +sentence ``SelfRef$(\alpha,d) \,$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +discussed +how +to +encode +approximate + analogs of +SelfRef$(\alpha,d)$'s + self-referential statement. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii of self-justification's +definition. + +\smallskip + +This problem arises in +settings +more general than + G\"{o}del's +paradigm, +where $\alpha$ was an extension of Peano Arithmetic. +There +are +many +settings +where the Second Incompleteness Theorem does +generalize +\cite{Ad2,AB1,AZ1,BS76,Bu86,BI95,Fe60,Go31,HP91,HB39,Ko6,KT74,Lo55,PD83,PW81,Pu84,Pu85,Pu96,Ro67,Sa11,Sm85,So94,Sv7,Ta0,VV94,Vi92,Vi5,WP87,ww2,wwapal,wwlogos,ww7}. +Each such result formalizes a +paradigm where +self-justification is infeasible, +due to a diagonalization issue. +Most +logicians +have +hesitated to +thus + employ +a SelfRef$(\alpha,d)$ + axiom +because +$\alpha+$SelfRef$(\alpha,d) $ +is usually + inconsistent \footnote{ \baselineskip = 1.3 \normalbaselineskip \label{troub} + Typical ordered pairs $(\alpha,d)$ + will have the property that + the broader axiom system + $~\alpha^d~=~\alpha \,+ \,$SelfRef$(\alpha,d)$ will + be inconsistent, even + when $~\alpha~$ is consistent. This is because + a + standard + G\"{o}del-like self-referencing + %diagonalization + construction + will + %usually + typically + % be able to + produce a proof of $0=1$ from + $~\alpha^d\,$, irregardless of whether or not $~\alpha$ is +% formally + consistent.}. + + + + + + +\smallskip + + + + + +Our research +explored special +circumstances +\cite{ww1,ww5,ww6,wwapal} +where it is feasible to +construct self-justifying formalisms. +These paradigms involved weakening +the properties a system can prove about +addition and/or +multiplication +(to avoid the preceding +difficulties). +To be more precise, let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote +two +3-way predicates + indicating +$x$, $y$ and $z$ satisfy +$x+y=z$ and +$x*y=z$. +A +logic +will be said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} iff it +includes +1-3 as axioms. + + +\vspace*{- 0.8 em} +{\ +\cvl +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + +\vspace*{- 0.6 em} + +\cvl + +We will say +a +logic +system +$\alpha$ +is +{\bf Type-M} iff it contains +each of \eq{totdefxs} -- \eq{totdefxm} +as axioms, +{\bf Type-A} iff it contains only +\eq{totdefxs} and \eq{totdefxa} as axioms, +and {\bf Type-S} iff it contains +only \eq{totdefxs} as an + axiom. +A system is called +{\bf Type-NS} iff it {\it does not} contain +any of these axioms. + + + + + +Our investigations + \cite{ww1}--\cite{ww7} +began by observing +some +Type-A systems can recognize +their +consistency under semantic tableaux deduction, +and +several +Type-NS systems +can +recognize their + Hilbert consistency. +Many of +these systems were capable of +proving +%all +Peano Arithmetic's + $\Pi_1$ theorems +in a language +that represents addition and multiplication +as +the +3-way predicates +of + Add$(x,y,z)$ and Mult$(x,y,z)$. + + + + + + +\parskip 1pt + +Our self-justifying + evasions of the +Incompleteness +Theorem are difficult to further extend +primarily because the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} showed +natural +Type-S systems cannot recognize their own Hilbert consistency. +Also, Willard + \cite{ww2,ww7,ww9} +% +% wwooo +% +strengthened earlier results of +Adamowicz-Zbierski +\cite{Ad2,AZ1} +to establish that natural +Type-M system cannot recognize their semantic +tableaux consistency. + +\cvs + + + + + + +\medskip + + +A related + class of evasions of the + Second Incompleteness +Theorem +was discovered +in \cite{ww9}. +Let us say + $~\alpha~$ +is +a +{\bf Type-Almost-M} +axiom system +iff $~\alpha~$ can prove +statements \eq{totdefsymba} and +\eq{totdefsymbm} +as theorems +while treating +{\it +none of sentences + \eq{totdefxs} -- + \eq{totdefsymbm} +as axioms.} +(Many axiom systems, +that +use + function symbols ``$~+~$'' and +``$~*~$'' for +formalizing addition and multiplication, +fall technically into the +% obviously +Type-Almost-M +% (rather than Type-M) +category.) +\vspace*{- .2 em} +\beq +\label{totdefsymba} +\forall x ~\forall y~ \exists z ~~~~x+y=z +\enq +\vspace*{- 1.5 em} +\beq +\label{totdefsymbm} +\forall x ~\forall y ~\exists z + ~~~~x*y=z +\enq +\vspace*{-1.4 em} + +\noindent +The preceding is of interest because +some surprisingly strong +(albeit unusual) +Type-Almost-M systems +\cite{ww9} + have an ability to +verify their Herbrand but not +also semantic tableaux consistency. + + + + +The +proofs +in our prior papers +were +challenging +primarily + because +they required +one to separate the +local combinatorial +methods +employed in +\cite{ww93,ww5,wwapal,ww9}'s + particular applications +from +the +common principles +that underlied behind all +these +works. +Our +Theorems \ref{ppp1}, \ref{ppp2} and \ref{pqq4} +will rectify this problem by +identifying +common components +that unite these +four paradigms. +(Theorems + \ref{pqq3}, \ref{pqq5}, + \ref{ppp6}, +E.1, G.2 and G.3 will then carry on +in further +directions.) + + +%%%iii 1 + + + +All these theorems will +contain severe limits on their generality, so that the +Second Incompleteness Theorem does not contradict them. +It is clearly perplexing to imagine +how humans +are able to +motivate themselves to cogitate, +without + their thought processes possessing +some type of +{\it at least tentative} +presumption of +their own consistency. +%It is for this reason that our +Our +research +has thus consisted of an approximately equal effort +in exploring +both +\cite{ww2,wwlogos,wwapal,ww7}'s +new +% types of +generalizations of the +Second Incompleteness Theorem +and +%in examining the unusual perspectives of +\cite{ww93,ww1,ww5,ww6,wwapal,ww9}'s unusual +boundary-case exceptions to it. + +%\parskip 1pt + +It is clear +every boundary-case exception +to the Second Incompleteness Theorem +has limited scope because +the Incompleteness Theorem +is a broadly encompassing result. +This + paper + will, thus, +be addressing +a challenging +near-paradoxical + question +about the maximal +nature of +self-justification +that + can + never be resolved +in a +fully satisfying +manner. +The Second + Incompleteness Theorem is +clearly sufficiently +central to +logic +for it to be desirable +to know +what {\it partial roads of success} a +self-justifying axiom system can +obtain. + +%\cvs + +%\vspace*{- 0.6 em} + +\section{Literature Survey} + + +\label{survey} +\label{B2-lem} +\label{D2-def} + + +%\vspace*{- 0.6 em} + + + + + + + + +Two 5-page surveys of the prior literature about the +Second Incompleteness +Theorem were provided in our +articles \cite{ww5,wwapal}. +This section will present a +more abbreviated survey, +focusing +on +only +those +developments that are +particularly germane to + the current article. + + + +The study of incompleteness +began with +four classic papers by +G\"{o}del, L\"{o}b, Rosser and Tarski +\cite{Go31,Lo55,Ro36,Ta36} and +with the +Hilbert-Bernays + exploration of +their +derivability conditions +\cite{HP91,HB39,Ka91}. +Generalizations of these results for weak +axiom systems, such as Q, began with +the work of Tarski-Mostowski-Robinson \cite{TMR53} +and +Bezboruah-Shepherdson \cite{BS76}. + + + + + + + +Some +more +notation is needed to describe more +recent developments. +Let $~x'~$ denote +the ``successor'' operation that maps +$x$ onto $x+1$. +A formula + $ \varphi(x) $ is called \cite{HP91} a +{\bf Definable Cut} for an +axiom system $~ \alpha~$ iff +$~\alpha~$ can prove: +\begin{equation} +\label{initdefx} +\varphi(0) \mbox{ AND } +\forall~x~ \{~\varphi(x)\Rightarrow\varphi(~x'~)~ \} + \mbox{ AND } + \forall~x ~\forall~y \,0 \,$, +$\,$let $ \, \phi_{i} \, $ +and $ \, \psi_{i} \, $ +denote the +sentences in +\eq{as} and \eq{bs} +respectively. +Also, + let + $ \, \phi_{0} \, $ and +$ \, \psi_{0} \, $ +denote \eq{zs}'s +sentence. +Then + $ \, \phi_0, \, \phi_1, \, ... \, \phi_n \, $ +imply + $ \, x_n \, = \, 2^{ n+1} \, , \, $ and + $ \, \psi_0, \, \psi_1, \, ... \, \psi_n \, $ + imply $ \, y_n \, = \, 2^{2^n} \, $. +Thus, the latter sequence +grows at a +faster +rate than +the former. +Much of our research has used the difference between the +growth rates of +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +as a motivating example explaining why +\ep{totdefxa}'s Type-A axiom systems can +support a stronger form of boundary-case exception +to the semantic tableaux version of the Second Incompleteness +theorem than +can +Type-M systems. + +\parskip 2pt + + +\smallskip + + +Let +Log$(\, y_n \,) \, = \, 2^{n} \, $ +and +Log$(\, x_n \,) \, = \, {n+1} \, $ +thus +designate the lengths of the binary codings for +$ \, y_n \, $ + and +$ \, x_n \, $. +Then $ \, y_n\,$'s coding +has a length +$\, 2^{n} \, $, which is + {\it much larger} than +the $ n+1 $ +steps that $ \, \psi_0, \, \psi_1, \, ... \, \psi_n \, $ +use to +define its existence. +However, + $ \, x_n\,$'s +length has a + smaller + size of +$ \, {n+1} \, $. +These observations are useful because every proof +of the +Incompleteness Theorem +involves +a +G\"{o}del + number $ \, z \,$ +coding a sentence +that has a capacity +to self-reference its own definition. +The faster +growing series $y_0,\,y_1,\,,\,...\,y_n$ +should +be intuitively +anticipated +to have + this +self-referencing +capacity because + $~y_n\,$'s binary encoding +has a +$~2^{n+1}~$ length that +dwarfs the +size of the $O(n)$ +steps +used + to define its +value. Leaving aside +\cite{ww2,ww7}'s +% +% wwoooo +% +many details, +this +fast growth +explains +roughly + why many Type-M +logics +satisfy the semantic tableaux version of +the Second Incompleteness Theorem. + + +\smallskip + +This paradigm also +illustrates intuitively +why some + Type-A systems, employing +\cite{ww93,ww1,ww5}'s +semantic tableaux formalism, +can +represent +boundary-case exceptions to the + Second +Incompleteness +Theorem. + This is because such formalisms +lack access to +\ep{totdefxm}'s axiom that multiplication is a total function. +(They are +unable, +thus, + to +easily + construct numbers $ \, z \, $ that can +self-reference their own definitions +because they have access only +to the slower growing + addition primitive.) +In particular +assuming only that each sentence in +the axiom-sequence + $ \phi_0, \phi_1, ... \phi_n $ +(from \ep{as} ) +requires a mere +two bits +for its encoding, +the length $ n+1 $ of + $ x_n $'s +binary encoding +will be +smaller +than the +length of its +defining + sequence. + +\smallskip + +This short length for $ x_n $ +had +motivated +\cite{ww93,ww1,ww5,ww6}'s +evasion of +the semantic tableaux +version +of the +Second Incompleteness Theorem. +It +suggested that the self-referencing +needed in a +G\"{o}del-like diagonalization argument would stop being +feasible +when \ep{as}'s slow-growing +$x_1,\,x_2,\,x_3,\,...$ +sequence represents the fastest growth that is possible. + + + + +One of the several goals in this article +will be + to formalize +a generalizations of +\cite{ww93,ww1,ww5,ww6}'s +self-justifying methodologies by using +Definition \ref{def3.3}'s +generic configurations. +The proofs +of our main theorems +will, of course, be +more subtle than +the hand-waving intuitions appearing in this example. +For instance, the combined work of +Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris \cite{Ne86,Pu85,So94,WP87} +(summarized by Theorem 2.1) +raised the subtle issue that + no Type-S system +can +prove a theorem affirming its +own Hilbert consistency. +Another complication +is that the +\ep{bs}'s implication for proofs that use +the multiplication operative has +different side effects for +Herbrandized and +semantic tableaux +deduction +(on account of + Ko{\l}odziejczyk +\cite{Ko5,Ko6}'s +previously mentioned +observations about the potential +exponential difference between the lengths of these +proofs +under extremal +circumstances). + + + + +\smallskip + +Our +main theorems +will show +that +self-justifying systems, +using four +deduction methods, +are +capable of proving +all of Peano Arithmetic's $\Pi_1^\xi$ +theorems. +Interestingly, +self-justification +will +be compatible with \cite{ww5}'s modification +of semantic tableaux deduction, +that includes a + modus ponens rule + for + $\Pi_1^\xi$ and $\Sigma_1^\xi$ type sentences. +However, + \cite{wwlogos} +has shown +an analogous + modus ponens rule for + $\Pi_2^\xi$ and $\Sigma_2^\xi$ sentences +is incompatible +with self justification. +(Thus, the contrast between our +main +results and the +Second Incompleteness +Theorem's generalizations will be quite tight.) + + + +\cvl + + +\section{Five Helpful Definitions and An Informative Lemma} + +\label{3uuuu2} + +\label{D.4-theorx} + + +This section will introduce +five definitions and + prove +a +Lemma \ref{lemex4} +about +self justification. +This lemma +will be +% much +weaker +than +Sections \ref{3uuuu3} +and \ref{sect64}'s +main results. +Its +main +purpose + will be to provide +a +useful +starting example. + + + + + +\smallskip + +\bxbxdr +\label{xd+1x3} +The symbol +``E$(n)$'' +will denote some +term +in Definition \ref{def3.3}'s +language $ \, L^\xi \, $ +that represents the +value + $ \, 2^n \, . \, $ +In using +this symbol, we do +not presume that +$ \, L^\xi \, $ possesses a function +symbol for +the exponent operation. +Thus if $ \, L^\xi \, $ +has only a function symbol for +multiplication, +then + E$(n)$ +could +designate +the term of $ \, $``$ \, 2*2* \, ... \, *2 \, $''$ \, $ with +$ \, n \, $ repetitions of ``2'' $. \, $ (Alternatively, + E$(n)$ +can be + defined via +applying + $\, 2^n \,$ iterations +of the successor function to zero, +or by having a +special constant symbol designating + $ \, 2^n \, $'s value. +Essentially, any reasonable method can +be used to define E$(n)$'s value) + + +\eedd + +\cvrew + +\nop + +\smallskip + +\bxbxdr +\label{xd+1x4} +Let +$\,\Uxp \,$ denote +a prenex normal sentence. +Then +{\bf Scope$_E$($\Uxp,$N)$~$} will denote +a sentence identical to $~\Uxp~$ except that +every unbounded universal quantifier ``$~\forall~v~$'' +is changed to ``$ \, \forall \, v \, < \, E(N) \, $'', +and every + unbounded existential quantifier ``$ \, \exists \, v \, $'' +is changed to ``$ \, \exists \, v \, < \, E(N) \, $''. +(No change is made among the bounded quantifiers within +the +$~\Delta_0^\xi$ +part of the sentence +$\,\Uxp \,$.) +For example, if +$\,\Uxp \,$ denotes +the $\Pi_1^\xi$ +sentence of +$~\forall \, v_1~\forall \, v_2~...~\forall \, v_k~~~\phi(v_1,v_2,...v_k)~$ +then +\eq{scopede} +illustrates +Scope$_E$($\Uxp,$N)'s form. +Likewise if +$~\Uxp ~$ is +the $~\Sigma_1^\xi~$ +sentence of +$~\exists \, v_1~\exists \, v_2~...~\exists \, v_k~~~\phi(v_1,v_2,...v_k)~$ +then +\eq{scopedx} illustrates +Scope$_E$($\Uxp,$N)'s form. + +\vspace*{- 0.4 em} + +{ +\small +\cvl +\beq +\label{scopede} +\forall ~ v_1~ < ~E(N)~~\forall ~ v_2~ < ~E(N)~~ ... +\forall ~ v_k~ < ~E(N) ~~~~~ : ~~~~~ +\phi(v_1,v_2,...v_k)~ +\enq +\beq +\label{scopedx} +\exists ~ v_1~ < ~E(N)~~\exists ~ v_2~ < ~E(N)~~ ... +\exists ~ v_k~ < ~E(N) ~~~~~ : ~~~~~ +\phi(v_1,v_2,...v_k)~ +\enq} +\eedd + + +{\bf Special Note about Definition \ref{xd+1x4}'s Meaning.} +If +$\Uxp$ is a +$\Delta_0^\xi~$ +sentence then +Scope$_E$($\Uxp,N)$ +will +be equivalent to $~\Uxp~$ +for every $N \geq 0$ +by definition. +(This is because +$\Delta_0^\xi~$ formulae +contain +no unbounded quantifiers +that undergo change when + $\Uxp$ is mapped onto +Scope$_E$($\Uxp,N).~~)$ + + +\medskip + + + +{\bf More About +this Notation:} +The +potentially lengthy +syntactic object of +``$\,$Scope$_E$($\Uxp,$N)$\,$'' {\it + will actually + not} +be used +in our physical encodings +of proofs. +Instead, these encodings will + use the +more +desirably +compressed +object of +``$\,\Uxp\,$'' +(which has no +possibly bulky + $E(N)$ term). The {\it sole function} of +$\,$Scope$_E$($\Uxp,$N)$\,$ +will be for us to speculate about what +Boolean value +$\,\Uxp\,$ + {\it would theoretically assume} +(under the Standard-M + model) +if $\,\Uxp\,$'s quantifiers +were modified + so that their ranges +were changed to be +bounded by $E(N).$ +$~\,$(It turns out that +Scope$_E$($\Uxp,$N)$\,$'s +finitized quantifier-range +will +help +%greatly +simplify our +analysis.) + +%proofs.) + + +\medskip + + +\bxbxdr +\label{xd+1x5} +A +$\Pi_1^\xi$ +or $\Sigma_1^\xi$ +sentence + $ \Uxp $ will be called +{\bf Good(N)} +when the entity +Scope$_E$($\Uxp,N)$ is +true +under the +Standard-M model +\footnote{\f55 \label{fgood} A +quite +unusual aspect of Definition \ref{xd+1x5} is that its +Good$(N)$ condition +has opposite properties when it is applied to +$\Pi_1^\xi$ +and $\Sigma_1^\xi$ +sentences +in one particular respect. +This is because for each $~N,~$ the + Good$(~N~)$ condition is weaker than +the +Good$(~\infty~)$ condition +for $\Pi_1^\xi$ +sentences, while it is stronger than it for + $\Sigma_1^\xi$ +sentences. (For instance, +$~\forall \, x~\phi(x)~$ is +stronger than +$~\forall \, x b \, +\geq \, 2 \, $ +Then + an axiom system $ \, Z \, $ +(employing $ \, L^* \,$'s language) +will be called +a {\bf Normed(a,b)} formalism iff: +\begin{enumerate} +\item All $Z$'s +axioms are +either $\Pi_1^{*}$ +or $\Sigma_1^{*}$ sentences. +\item +Each $\Pi_1^{*}$ axiom of $~Z~$ +will satisfy Definition \ref{xd+1x5}'s +Good($~$Log$_2a~)$ +criteria, and + each + $\Sigma_1^{*}$ axiom of $~Z~$ +will +likewise + satisfy Good($~$Log$_2b~)$. +\ene + +\nskip +\nskip + + +{\bf Clarification about Definition D.\ref{D2-def} +: } The +``Normed(a,b)'' +concept (above) +is obviously +equivalent to the same-named notion +appearing in +Definition 4 of \cite{ww5}. +It uses, +however, + a +different notation +to make it compatible +with +Section \ref{3uuuu2}'s formalism. +Thus, Item 2's assertion +that the + $\Pi_1^{*}$ axiom +$ \, \forall \, v_1 \, \, \forall \, v_2 \, \, ... +\forall v_k \, \, \, \, \phi(v_1,v_2,...v_k) \, \, $ +satisfies +Good($~$Log$_2a~)$ is equivalent to +\eq{normscopede}'s statement. +The +Good($\,$Log$_2b\,)$ property of +$\exists \,v_1\,\exists \,v_2\, ...\,\exists \,v_k\, ~~\phi(v_1,v_2,...v_k)~$ +is, +likewise, + equivalent to \eq{normscopedx}. + +\nskip + +\beq +\label{normscopede} +\forall ~ v_1~ < ~a~~\forall ~ v_2~ < ~a~~ ... +\forall ~ v_k~ < ~a + ~~~~~ : ~~~~~ +\phi(v_1,v_2,...v_k)~~. +\enq + +\nskip + +\beq +\label{normscopedx} +\exists ~ v_1~ < ~b~~\exists ~ v_2~ < ~b~~ ... +\exists ~ v_k~ < ~b + ~~~~~ : ~~~~~ +\phi(v_1,v_2,...v_k)~~. +\enq + +\parskip 5pt + +\nskip + +Our interests in +this notation +will center around Fact D.3's invariant: + + + +{ +%%corbl \baselineskip = 1.17 \normalbaselineskip + +\medskip + +\nop + +{\bf Fact D.3$~.$} +Let +$ \, \xi^* \, $ +denote + Definition D.\ref{D1-def}'s +generic configuration, and +$ Z $ be an extension of $ \, \xi^* \,$'s +base axiom +system $ B^* $ +which +satisfies Definition D.\ref{D2-def}'s +Normed$(a,b)$ constraint. +Then any +$Z-$Based deduction tree +$\, T \, $that +has a G\"{o}del +number +smaller than + $ \, (a/b)^4 \,$ +must +contain +at least one +root-to-leaf branch, called $ \, \peta \, \, , \, $ +that is not +``closed''. {\rm +(In other words, this path $ \, \peta \, $ +will be contradiction-free, insofar as it +does not contain both some +sentence $~\Psi~$ and its formal +negation).} +} + +%%notre + +%%notre-only {\bf Proof:} $~$ The justification of +%%notre-only Fact D.3 is essentially +%%notre-only an +%%notre-only %a direct and +%%notre-only immediate +%%notre-only consequence +%%notre-only of the +%%notre-only %% no +%%notre-only %% no \newpage +%%notre-only %% no \noindent +%%notre-only %% no +%%notre-only Lemmas 1 and 2 from \cite{ww5} +%%notre-only after one maps these two lemmas's notation into the +%%notre-only context of Fact D.3's +%%notre-only hypothesis. (We provide a detailed justification +%%notre-only of this +%%notre-only technical +%%notre-only fact in the Footnote 23 of the slightly longer +%%notre-only unabridged version of this article +%%notre-only that +%%notre-only resides in the Cornell Archives \cite{ww11}.) + + + + \smallskip + +\nskip + +%%cccorn-ff + +%%cccorn-cc +%%cccorn-cc + {\bf Proof:} + $~$ The + justification of + Fact D.3 is +% essentially +% an + a direct +% and immediate + consequence + of + %% no + %% no \newpage + %% no \noindent + %% no +the Lemmas 1 and 2 +appearing in article \cite{ww5} + (see footnote + \footnote{\label{newtry} + \baselineskip = 1.3 \normalbaselineskip + A + %formal + proof of Fact D.3 from first principles would + be + quite + complicated because there are eight elimination rules employed + by semantic tableaux deduction, $~$each + of which needs to + be + % simultaneously + examined by such a proof's umbrella + formalism. Fortunately, we do not need provide such a + complicated analysis here + because + a 4-page proof of + the Lemmas 1 and 2 + in Section 5.2 + of \cite{ww5} + had + already + visited these issues. + Thus, + Fact D.3 + turns out to be an easy consequence + of these two lemmas + %the Lemmas 1 and 2 of \cite{ww5} + after the following two straightforward issues are addressed: + \bee + \topsep -4pt + \itemsep -2pt + \item Section 5.2 of \cite{ww5} + had + defined the $\,$``U-Height''$\,$ of a deduction tree to + be the + largest + number of + U-Grounding function symbols + that appear in any of its root-to-leaf + branches. Its Lemma 1 + proved that + every deduction tree with a U-Height $\, \leq \, Log_2a \, - \, Log_2b \, $ + will contain at least one branch + satisfying a condition, + which \cite{ww5} + called ``Positive(a,b)''. + The Lemma 2 in \cite{ww5} then showed that this + Positive(a,b) property implies that the germane + deduction tree must contain some branch that is + contradiction-free. + The combination of these two lemmas + thus amounts to the establishing of + the following + %slightly + rephrased + hybridized statement: + %invariant: + \begin{quote} + $\bullet~~~$ + If a Z-based deduction + tree has + a U-Height $\, \leq \, Log_2a \, - \, Log_2b \, $, + then some branch of it + is contradiction-free + (i.e. this branch cannot + contain both some + % $\Delta_0^*$ + sentence $~\Psi~$ and its + negation). + \end{quote} + \item + %% + %% Item $\, \bullet \,$ + %% applies to Fact D.3 's + %% deduction trees + %% because + %% + Fact D.3 's hypothesis indicated the + G\"{o}del number $g$ for its deduction tree + satisfied the following + conditions: + \bed + \topsep -7pt + \itemsep -1pt + \item[ I. ] + $~~g~\leq ~ (a/b)^4~$ + \item[ II. ] + The U-Height of $~g \,$'s deduction tree + is less than $~\frac{1}{5}~$Log$_2~g~$. (This + is + simply + because + Fact D.3 presumes that + the ``Conventional Tableaux Encoding'' methodology + from Part-iv of + Definition D.\ref{D1-def} + was used to encode $~g$'s + G\"{o}del number.) + \ennd + Items + I and II imply + $g \,$'s tree has + a U-Height $\, \leq \, Log_2a \, - \, Log_2b $. + The invariant $\, \bullet \,$ + %then, in turn, implies + %that this deduction tree + then implies + this deduction tree + has at least one branch + that is contradiction-free (as Fact D.3 + claimed). $\Box$ + \ene + We emphasize that the + %The + above + % 2-part + justification + of Fact D.3 is + {\it much simpler} + than a proof from first principles. + % + %This is because the + % + The + latter would + require examining + eight different + tableaux + elimination rules, + as the detailed + proofs of \cite{ww5}'s + Lemmas 1 and 2 + actually + did do.} + % + %\noindent + %-----------------------------------------------------------------} +for more details). $~~\Box$ + + +%%%% +%%%% provides some +%%%% %some +%%%% % precise +%%%% % details +%%%% details about how +%%%% the Lemmas 1 and 2 +%%%% of \cite{ww5} do +%%%% imply Fact D.3). +%%%% + + +\nop + + + +We will now apply Fact D.3 to prove +Theorem D.\ref{D.4-theorx}. +Its invariant will, +interestingly, +collapse entirely +\footnote{\h55 $~$The +difficulty posed by +%the +multiplication +%operation +can be easily understood when one compares +two +integers sequences + $ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $, +defined +as follows: +\begin{center} +$x_{i}~~=~~x_{i-1}+x_{i-1}~~~~~$ +$~~$ AND $~~$ +$~~~~~y_{i}~~=~~y_{i-1}*y_{i-1}$ +\end{center} +It turns out that the faster growth rate of multiplication +under +the series $~ y_0, y_1, y_2, ...~ $ +enables +one to to construct tiny +$Z-$Based deduction trees +$\, T$ that +violate +the analog of Fact D.3 's paradigm. +(This is +because +such trees + can have +G\"{o}del +numbers +smaller than + $ \, (a/b)^4 \,$, +while +all their +root-to-leaf branches +can be simultaneously +``closed'' via contradictions.) +This +property of + multiplication is +analogous +to Example \ref{ex3-3}'s +observations about + how the +differing growth rates of +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +are related to the +threshold where the semantic tableaux version of + Second Incompleteness Theorem can be evaded. \fend } +%% +%% It +%% explains +%% intuitively +%% why Fact D.3 and +%% Theorem D.\ref{D.4-theorx} +%% use +%% paradigms +%% that recognize addition but not multiplication +%% as total functions +%% during their evasions of +%% the semantic tableaux version of +%% the Second Incompleteness Theorem. \fend } +%% + if one were to +merely add +a multiplication function symbol to +the + U-Grounding language. +This is why +our +boundary-case exceptions +to the semantic tableaux version of the Second Incompleteness +allow +a Type-A axiom system +to +recognize addition +as a total function (but +suppress a similar + treatment of + multiplication). + + + + +\hgskip + + +{\bf Theorem +D.\ref{D.4-theorx}.} +{\it The generic configuration $\xi^*$ +is both A-stable and +E-stable.} {\rm (This +implies many different +self-justifying formalisms +exist +via Theorems +\ref{ppp1}, \ref{pqq3}, \ref{pqq4}, \ref{pqq5}, + \ref{ppp6}, + G.2 and G.3.)} + +\cvs + +\hgskip + +Our proof of +Theorem D.\ref{D.4-theorx} will +separately +show + $\xi^*$ is +A-stable and E-stable. + +\hgskip + +\parskip 3pt + +{\bf Proof of + $ \, \xi^* \,$'s A-stability :} +Suppose for the sake of establishing a +proof by + contradiction +that $ \, \xi^* \, $ was not A-stable. +Then the constraint $ \, * \, $ +of Definition \ref{astab} +would be violated +by at least +%%%%% bbbbb +some +$\theta \, \in \,$RE-Class$(\xi)$. +This violation + will cause the statement $ \, + \, $ to be true +for +such a + $\theta~$: +\begin{description} +\item[ + ] +There exists a +semantic tableaux + proof $~p~$ +of a + $~\Pi_1^*~ $ theorem, +called say +$ \, \Uxp ~,~ $ +from + the +axiom system of $~\theta \cup B^\xi~$ +such that + Log$(p)~\leq \zzz \theta)~+1~ $ +and where + $ \, \Uxp \, $ also +fails to +satisfy + Good$\{~ \, \tftt \zzz \theta) \, ~\}~$. +\end{description} +Let us recall that +if $\Uxp$ is $\Pi_1^*\,$ then +Reverse$(\, \Uxp \,)~$ +is a +$\Sigma_1^*$ sentence equivalent to $~\neg \Uxp~$. +Thus, +Reverse$(\, \Uxp \,)~$ will satisfy +Good$\{~ \, \tftt \zzz \theta) \, ~\}~$ +criteria (simply because +it +% Reverse$(\, \Uxp \,)~$ + has the opposite +goodness +property as +$\,\Uxp \,$ ). +Also, if +$~Z~$ +denotes the axiom system of + $~\theta \cup B^\xi \, + \, $Reverse$(\, \Uxp \,)$, +it is easy to verify +\footnote{\g55 \label{jnorm} +The axiom system + $Z$ must satisfy +\nor1 +because: +\bee +\item +The +quantity +$~2^{ \zzz \theta \, )}$ +is a valid +first component +for $Z$'s norming constraint +because +all the axioms of $~B^\xi~$ are +true in the Standard-M model +and +because +Definition \ref{chg} +implies +all of +$ \theta \,$'s axioms satisfy +Good $\{\,\zzz \theta) \,\}$. +\item +The +quantity $ ~\sqrt{~2^{ \zzz \theta \, )}} ~$ +is a valid +second component +for $Z$'s norming constraint +because + Reverse$(\, \Uxp \,)~$ +is the only $\Sigma_1^*$ sentence belonging to +Z, and because Reverse$(\, \Uxp \,)~$ +satisfies + Good$\{~ \, \tftt \zzz \theta) \, ~\}~$. +\ene} +that $~Z\,$'s axioms +will +satisfy the +\nor1 +criteria. + + + +\smallskip + +It is next helpful to observe that what is +a proof from one perspective corresponds to +being a +deduction tree from +a different +perspective. +Thus, Item $~\, + \,$'s proof + $~p~$ +of the +theorem +$ \, \Uxp \,$ +from + the +axiom system of $~\theta \cup B^\xi~$ +corresponds to being a Z-based deduction tree, +with $~Z~$ representing the +axiom system of +$~\theta \cup B^\xi \, + \, $Reverse$(\, \Uxp \,)$. +In this context, +Item $\, + \,$'s +inequality of + Log$(p)~\leq \zzz \theta \, )~+1~ $ +implies +\footnote{ \g55 \label{fd7} +Without loss of generality, we +may assume that +every non-trivial proof $~p~$ satisfies + Log$(p)~\geq ~64~$ (since a +string with fewer than 64 bits is too short to be a +proof). +Then the footnoted paragraph's + Log$(p)~\leq \zzz \theta)~+1~ $ inequality +trivially implies +$~p~<~3^{ \zzz \theta \, )}~$. +In a context where + $~Z~$ +is a +\nor1 +axiom system, +the + latter inequality +certainly +implies +$~p~$, viewed as a deduction tree for $~Z~,~$ +has a small enough G\"{o}del number to + satisfy the +hypothesis for Fact D.3. +(This is because if one sets +$~a~=~2^{ \zzz \theta \, )} ~$ +and +$~b~=~\sqrt{2^{\zzz \theta \, )}} ~$ +then obviously +$ ~~p~<~3^{ \zzz \theta \, )}~ <~4^{ \zzz \theta \, )}~ =~ +(a/b)^4~~~).$ \fend } +$\,$that +$~p~$, viewed as a deduction tree for $~Z~,~$ + satisfies the +hypothesis of Fact D.3 . +Hence, Fact D.3 establishes +that $~p~$ must contain +at least + one contradiction-free +root-to-leaf branch. + +\smallskip + + +This last observation +is all that is needed +to confirm + $~\xi^* \,$'s A-stability, +via a proof-by-contradiction. +This is because the +definition of a semantic tableaux proof implies +every +one of its +root-to-leaf branches +must +end with a pair of +contradicting nodes. +However, the last paragraph showed +$~p~$ +will not satisfy this +required + property, +if $~\xi^*~$ is not A-stable. +Hence +our construction has proven the A-stability of + $~\xi^*~$ by showing that otherwise an infeasible +circumstance will arise. + $~~\Box$ + + + + + +\hgskip + +{\bf Proof of + $ \xi^* $'s E-stability :} +A +proof-by-contradiction +will verify + $ \xi^* $ is +E-stable, analogous + to the + proof of +its + A-stability. +Thus if + $ \xi^* $ was not +E-stable, then +statement $++$ would be true +for some $\theta$. (This is because +at least one +$\theta \, \in \,$RE-Class$(\xi)$ +would then + violate +Definition \ref{estab}'s +requirement of $~**~~$.) +\begin{description} +\item[ ++ ] +There exists a +semantic tableaux + proof $~p~$ +of a $\Sigma_1^\xi$ theorem +$ \, \Uxp \, $ from the +axiom +system $\theta \cup B^\xi$ +such that + Log$(p) \,\leq \zzz \theta) +1 $ +and + $ \Uxp $ also +fails to +satisfy +Good$\{ \tftt \zzz \theta) \,\}.$ +\end{description} +Item $++ $ + implies +Reverse$( \Uxp )$ +satisfies + Good$\{ \tftt \zzz \theta) \}$ +(because Reverse$( \Uxp )$ again + has + the opposite +goodness property +as +$ \Uxp $ ). +Let +$Z$ now +denote the formal axiom system of + $\, \theta \cup B^\xi \, + \, $Reverse$( \Uxp )$. +The footnote \footnote{ \sm55 +The axiom system + $~Z~$ must satisfy +\xor2 +because: +\bee +\item The first component of its norming constraint +can be set equal to + $ ~\sqrt{~2^{ \zzz \theta \, )}} ~$ +because Reverse$(\, \Uxp \,)~$ +is a + Good$\{~ \, \tftt \zzz \theta \, ) \, ~\}~$ +$\Pi_1^*$ sentence, and all $~Z\,$'s other +$\Pi_1^*$ sentences satisfy more relaxed constraints. +\item The second component of $Z$'s norming constraint +is satisfied by the constant of +2 because Definition D.\ref{D2-def} implies this +quantity is always permissible +when $~Z~$ +contains no $\Sigma_1^*$ axiom sentences. +\ene \fend } +then + uses +reasoning +similar +to footnote \ref{jnorm} +to +show +$Z$ +satisfies +\xor2 + +\parskip 3pt + +\smallskip + +As before +via a simple change in notation, + $~p\,$'s +semantic tableaux proof of +$ \, \Uxp \,$ +can be viewed +as + a deduction tree +using $~Z\,$'s +axioms. +Also as before, we may +use the combination of the facts that + $~Z~$ is a +\xor2 system +and that Item ++ +indicated + Log$(p) \,\leq \zzz \theta) +1 $ to +deduce\footnote{\sm55 The proof that + $~p~$ is + small enough to satisfy +Fact D.3 's +hypothesis in the current E-stable case +is almost +identical to Footnote \ref{fd7}'s analysis of +the A-stable case. +Thus as in the earlier case, +Item ++'s inequality of + Log$(p)~\leq \zzz \theta)~+1~ $ +trivially implies +$~p~<~3^{ \zzz \theta \, )}~$. +Also, we may again assume that + Log$(p)~\geq ~64~$ (since a sequence with fewer than 64 +bits cannot amount to a proof of any interesting fact under +all normal coding conventions). +An analog of Footnote \ref{fd7}'s chain of inequalities +will then allow us to conclude that +$~p~$ +is + small enough +proof from a +\xor2 +system +to + satisfy the +hypothesis for +Fact D.3. \fend } that + $~p~$ is small enough to satisfy +Fact D.3 's +hypothesis. + Hence once again, +Fact D.3 implies that +$~Z~$ must contain +at least + one contradiction-free +root-to-leaf branch. +As before, the existence + of this +contradiction-free +path +violates the definition of a semantic tableaux proof +and +enables + our proof-by-contradiction to +reach its +desired end. $~\Box$ + +\hgskip + + + +{\bf Remark D.5} {\it (about +Theorem D.\ref{D.4-theorx}'s +significance) :} +Part-ii of + Definition +D.\ref{D1-def} +indicated $~\xi^* \,$'s base axiom of +$~B^*~$ was a Type-A formalism that recognized addition +as a total function. This is significant because + \cite{ww0,ww2,ww7,ww9} +showed +nearly all Type-M formalisms, including +all the common axiomatizations for +I$\Sigma_0$, +are unable to recognize their +semantic tableaux consistency. +Thus, the declaration that multiplication is a total +function +is {\it the trigger-point} causing +\footnote{\sm55 +We formally proved in \cite{ww0,ww2,ww7,ww9} +that +multiplication's totality property +causes + the semantic tableaux version of the Second +Incompleteness Theorem to become active. +The + Example \ref{ex3-3} +summarizes the main +%%% +%%% offers a +%%% % nice brief +%%% summary of the +%%% % underlying +%%% + intuition behind these +results.} +the semantic tableaux version of the +Second Incompleteness Theorem +to become active. +This threshold effect is +significant +% quite tight +because +Theorem D.4, combined with +Theorems + \ref{pqq4}, \ref{pqq5}, G.2 and G.3, +formalize {\it four different respects} in which +Type-A +self-justifying +formalisms can +prove all +Peano Arithmetic's + $\Pi_1^*$ theorems +{\it ( after} multiplication's totality axiom is suppressed). + +\cvt + + + +\subsection*{D-3. $~$Three Further Examples of +Stable Generic Configurations} + + + + +Our second +example +of an + EA-stable + configuration +is +called $~\xi^{**}~$. +It will be identical to + $~\xi^*~$ except that it will replace +semantic tableaux with a stronger +deduction method, +which +\cite{ww5} + called Tab$-U_1^*$. +The latter +is a +revised version of +semantic tableaux +that permits + a modus ponens +rule to perform +deductive cut + operations on +$\Pi_1^*$ +and $\Sigma_1^*$ sentences. +(The formal +definition of + Tab$-U_1^*$ +deduction +had appeared in \cite{ww5}. +It will be +unnecessary to + repeat here.) + + + + +The Section 5.3 of +\cite{ww5} +noted +Tab$-U_1^*$ +has + similar self-justification properties +as conventional semantic tableaux. +%It is thus unnecessary to discuss +%Tab$-U_1^*$ in detail here. +All the results that +Section D-2 +proved about + $~\xi^{*}~$ +% , +% however, +apply also to $~\xi^{**}~$, +via their natural generalization +under +\cite{ww5}'s +Tab$-U_1^*$ +deduction +method. +Thus, + $~\xi^{**}~$ +is also EA-stable. + + +%%%%% +%%%%% +%%%%% Our second +%%%%% example +%%%%% of an +%%%%% EA-stable +%%%%% configuration +%%%%% is +%%%%% called $~\xi^{**}~$. +%%%%% It will be identical to +%%%%% $~\xi^*~$ except that it will replace +%%%%% semantic tableaux with a stronger +%%%%% deduction method, +%%%%% which +%%%%% \cite{ww5} +%%%%% called Tab$-U_1^*$. +%%%%% The latter +%%%%% is a +%%%%% revised version of +%%%%% semantic tableaux +%%%%% that permits +%%%%% a modus ponens +%%%%% rule to perform +%%%%% deductive cut +%%%%% operations on +%%%%% $\Pi_1^*$ +%%%%% and $\Sigma_1^*$ sentences. +%%%%% (The +%%%%% definition of +%%%%% Tab$-U_1^*$ +%%%%% deduction +%%%%% appeared in \cite{ww5}. +%%%%% It +%%%%% is unimportant to +%%%%% repeat here.) +%%%%% +%%%%% +%%%%% +%%%%% +%%%%% The Section 5.3 of +%%%%% \cite{ww5} +%%%%% noted +%%%%% Tab$-U_1^*$ +%%%%% has +%%%%% similar self-justification properties +%%%%% as conventional semantic tableaux. +%%%%% It is thus unnecessary to discuss +%%%%% Tab$-U_1^*$ in detail here. +%%%%% %% +%%%%% %% +%%%%% %% We will not +%%%%% %% go into the full details +%%%%% %% again, +%%%%% %% for the sake of brevity. +%%%%% %% +%%%%% %% +%%%%% All the results that +%%%%% Section D-2 had +%%%%% proved about +%%%%% $~\xi^{*}~$ +%%%%% % , +%%%%% % however, +%%%%% apply also to $~\xi^{**}~$, +%%%%% via their natural generalization +%%%%% under +%%%%% \cite{ww5}'s +%%%%% Tab$-U_1^*$ +%%%%% deduction +%%%%% method. +%%%%% Thus, +%%%%% $~\xi^{**}~$ +%%%%% is also EA-stable. + + + +A key point is that + there is a +non-trivial +distinction between +$ \xi^{*} $ +and $ \xi^{**} $, despite +the fact that they +have +similar technical qualities. +This is because + $ \xi^{**} $ contains a +Level-1 +modus ponens rule +(unlike $ \xi^{*} $ ). + If +it were infeasible to expand $ \xi^{*} $ +into +a broader + $ \xi^{**} $, $ $then both formalisms could, +perhaps, + be easily +dismissed as having +negligible pragmatic +significance (since +modus ponens is central +to +cogitation). +However in a context where $ \xi^{**} $ does permit +a Level-1 +modus ponens rule, +it is a tempting formalism +(despite its limited modus ponens rule). + + + + +Unlike + $~\xi^{*}~$ +and $~\xi^{**}~$, +our third +example of an EA-stable +configuration, +called $~\xi^{-}~$, +will support an unlimited modus ponens +rule. +This will be possible because + $~\xi^-\,$'s +language of $~L^-~$ +will +be weaker than the languages of + $~\xi^{*}~$ +and $~\xi^{**}~$. +Thus $~L^-$ will +include + the six Grounding functions, but +not the Growth functions of addition and doubling. +It will thus treat addition and multiplication as +3-way atomic predicates, + Add$(x,y,z)$ +and Mult$(x,y,z)$, rather than as +formal functions. + + +\cvt +\parskip 2pt + + + +This +perspective +enabled $~\xi^-~$ to +support an evasion of +the Second Incompleteness Theorem with +an unlimited modus ponens rule +present, +in a context where +the other four parts of +its +generic configuration are defined below: +\bee +\item +The + $~\Delta_0^{-}~$ +class for $~\xi^-~$ +will +be built in an +essentially natural + manner from +the Grounding function +set. +It will +thus +include +all formulae in $~L^- \,$'s language, +whose +quantifiers +are bounded + in any arbitrary manner +using +the Grounding function +primitives. +\item +The +base axiom system +$~B^-~$ of $~\xi^-~$ + will +employ an infinite number of constant symbols, +denoted as +$ K_1 , K_2 , K_3 , \, ... $ +where + $K_1=1$ +and where + $K_{i+1}$ is +a power of 2 + defined by the axiom of: +\beq +\label{addc} +\mbox{Add}(~K_{i}~,~K_{i}~,~K_{i+1}~) +\enq +Thus, the combination of +$ K_1 , K_2 , K_3 , \, ... $ +with the +Grounding function +of subtraction allows +the language $L^-$ +to encode the value of any +arbitrary natural +number (as +Part 1 +of Definition \ref{def3.3} +had required). +Essentially, +$~\xi^- \,$'s +base axiom system +of $~B^-~$ +can +be any +consistent +r.e. set of +$~\Pi_1^-~$ sentences +that includes \eq{addc}'s axiom schema +and is +able to +prove every + $\Delta_0^{-}~$ sentence which is valid +in the Standard-M model. +\item +$~\xi^- \, $'s +deduction method can be any version of a classic +Hilbert-style proof methodology. (Thus, it will include +a modus ponens rule with no restrictions.) +\item +$~\xi^- \, $'s +G\"{o}delization method can be essentially +any natural technique. +\ene +An interesting aspect of $\xi^-$ +is it can be +proven to be +EA-stable +via an analog of +Section D-2's treatment of $\xi^*$. +Thus, +Theorem \ref{pqq4} +implies +every axiom system +$\alpha$, +whose + $\Pi_1^-$ theorems +hold true +in the Standard-M model, +can be mapped +onto an extension of $\xi^-\,$'s base +axiom system +that can + recognize +its own +Hilbert + consistency +and +prove +$\alpha $'s $\Pi_1^-$ theorems. +Except for +minor changes in notation, +this +result +represents a new way of proving +\cite{wwapal}'s Theorem$\, 3.~$ + + + + + + +\medskip + + + +The self-justifying features +of + $ \xi^{*} $, $ \xi^{**} $ and $ \xi^{-} $ +are of interest +primarily + because +the +Second +Incompleteness Theorem implies +that they +cannot be +improved +much +further. +This tight fit is +summarized by Items 1-4. +\begin{enumerate} +\topsep -15pt +\item +The Theorem 2.1 +(due to the combined work of +Nelson, +Pudl\'{a}k, +Solovay and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} ) +implies no natural axiom system can +prove Successor is a total function and recognize its own +Hilbert consistency. This theorem +thus explains why +the presence of +growth functions +must be omitted from + $\xi^{-}\,$'s +base axiom system of $B^-$. +\item +Moreover, \cite{wwapal} + proved +$~\xi^{-} \,$'s method +for evading +the Second Incompleteness +Theorem +will +collapse +if one replaces +\ep{addc}'s ``addition-based named sequence'' of +constant symbols +$ K_1 , K_2 , K_3 , \, ... $ +with a faster +growing +``multiplicative +convention'', +where +the +constant symbols +$ C_1 , C_2 , C_3 , \, ... $ +are formally defined via +\eq{multc}'s + schema. +\beq +\label{multc} +\mbox{Mult}(~C_{i}~,~C_{i}~,~C_{i+1}~) +\enq +Thus, \cite{wwapal} showed that there +exists a + $\Pi_1^{-}$ sentence $ \,W \,$ +(provable from Peano Arithmetic) +such that no consistent system can +simultaneously prove $W$, +contain \eq{multc}'s axiom schema and prove the non-existence +of proof of $0=1$ from itself. +There is no space to prove it here, but +a generalization of the Second Incompleteness +Theorem implies the modification +of $\xi^-$ that replaces +\eq{addc}'s axiom schema with +\eq{multc}'s schema +{\it is not even 0-stable.} +\item +Similarly, +\cite{ww2,ww7} proved that if + $ \, \xi^{*} \, $'s and $ \, \xi^{**} \, $'s + base + axiom system of +$ \, B^* \, $ +was strengthened +to include the assumption that +multiplication was a total function then \cite{ww5}'s +two +semantic tableaux evasions of +the Second Incompleteness Theorem would +both collapse. +\item +Also, \cite{wwlogos} +proved +that an analog of $\xi^{**} \,$'s +evasion of the Second Incompleteness Theorem +will collapse if its +modus ponens rule was expanded to apply to +either $\Pi_2^*$ or $\Sigma_2^*$ sentences. +\ene +The Item 3 +is especially interesting because +\cite{ww6} +proved \cite{ww5}'s evasion of the Second Incompleteness +Theorem +was compatible with its formalism recognizing +an infinitized generalization of a +computer's floating point multiplication +as a total function. +Thus + while the semantic tableaux formalisms +of + $\xi^{*}$ or $\xi^{**}$ +are provably unable \cite{ww2,ww7} to + recognize integer +multiplication as a total function, +their relationship to floating point multiplication +is +more subtle. + + + + + + +\smallskip + + + + + + + + + + + + + + +Our fourth example of an +application of Section \ref{sect64}'s theorems +was stimulated by +some +insightful +email we +received from +L. A. Ko{\l}odziejczyk +\cite{Ko5} in 2005. +It noted +there existed a +potential + exponential gap between the lengths +of semantic tableaux and Herbrand-style proofs +under some +circumstances. +Our earlier research \cite{ww2} +addressed a +1981 Paris-Wilkie open question \cite{PW81} +by +generalizing some +Adamowicz-Zbierski techniques +\cite{Ad2,AZ1} +to show +a natural axiomatization of I$\Sigma_0$ + satisfied the semantic tableaux version of the Second +Incompleteness Theorem. +In this context, +Ko{\l}odziejczyk +asked whether this would +apply to all +plausible axiomatizations for I$\Sigma_0$ ? + + + + + + + +We replied in +\cite{ww9} +to +Ko{\l}odziejczyk's +stimulating question + by +distinguishing between Example \ref{ex3-1}'s +$\Delta_0^A$ +and $\Delta_0^R$ formulae +and by using +the Paris-Dimitracopoulos \cite{PD82} +translation algorithm for +$\Delta_0$ formulae. (The latter procedure was summarized +earlier by + Lemma \ref{lex22}. It +demonstrated + how to + map +classic arithmetic's +$\Delta_0^A$ formulae +onto equivalent +$\Delta_0^R$ formulae +in the Standard-M +model.) Our reply to +Ko{\l}odziejczyk's +question, +thus, +employed this +translation methodology to show that there existed an axiom system, +called Ax-3, which proved the identical set of theorems as +the more common Ax-1 and Ax-2 encodings of + I$\Sigma_0$ and which possessed the following +pair of +quite +fascinating + contrasting properties: +\bed +\topsep -3pt +\item[ A ] +No +consistent + superset $~\beta~$ of Ax-3's set of axioms is capable of +proving its +own + semantic tableaux consistency \cite{ww9}. +\item[ B ] +In contrast, +if ``Herb'' denotes +the next paragraph's + Herbrand-styled deduction +and if ``SelfRef'' denotes +the sentence $~\bullet~$ from +Section \ref{secc1}, +then +Ax3$\, + \,$SelfRef(Ax-3,Herb) will +be a self-justifying axiom system. +%%% +%%% +%%% In contrast, +%%% if ``Herb'' denotes +%%% the next paragraph's +%%% Herbrand-styled deduction +%%% method +%%% then +%%% Ax3$\, + \,$SelfRef(Ax-3,Herb) will +%%% satisfy both Parts (i) and (ii) of +%%% Section \ref{secc1}'s +%%% definition of +%%% self-justification. +%%% +%%% +\ennd + +The intuition behind \cite{ww9}'s proof of Items A and B can be +easily summarized if +we define a + ``Herbrandized-style'' proof of a +theorem $ \,\Phi \,$ from an axiom system $ \, \alpha \,$ +as being an essentially +2-part +structure where: +\bee +\topsep -3pt +\item Each of $\alpha$'s axioms and +also the sentence $~ \neg \Phi~$ are +first written as Skolemized +expressions. +\item +A propositional calculus proof +is then used to show + that some formal conjunction +of instances of Item 1's Skolemization schema has no satisfying +truth assignment. +\ene +Such a + formalism is +different from the definition +of a semantic tableaux proof (appearing in for example Fitting's +textbook \cite{Fi90} ). +This is because the latter replaces the use +of Skolemization in Items 1 and 2 with an existential quantifier +elimination rule. It turns out that this distinction enables +some semantic tableaux proofs to be exponentially more compressed +than their Herbrandized counterparts, +as Ko{\l}odziejczyk observed +\cite{Ko5,Ko6}. This fact + enabled \cite{ww9} +to prove that Herbrandized and semantic tableaux proofs +have the divergent properties summarized by Items A and B. + + +One reason +Ax-3's evasion of the Second Incompleteness Theorem +is of interest is that I$\Sigma_0$ supports many more generalizations +of the Second Incompleteness Theorem +than evasions +of it. + Thus, +Willard \cite{ww2,ww7,ww9} +proved that the semantic tableaux version of +the Second Incompleteness Theorem +was valid for three different encodings of +I$\Sigma_0$, and +Adamowicz, Salehi and Zbierski +have discussed in great detail +\cite{Ad2,AZ1,Sa11} + various Herbrandized generalizations +of the Second Incompleteness Theorem for +particular encodings of +I$\Sigma_0$ +and I$\Sigma_0+\Omega_i$. +Moreover, an added +facet of \cite{ww9}'s +Ax-3 encoding for I$\Sigma_0$ is that most automated +theorem provers use a +particular +variant of the Resolution method +that causes \cite{ww9}'s +unusual +methodology +to apply +also to them \footnote{ +\b55 +The main theorems in \cite{ww9} generalize for resolution because +Resolution-based theorem provers +employ skolemization analogously to Herbrand deduction. \fend }. + + +The reason for our +%particular +interest in +\cite{ww9}'s results +% in the current article +is that it represents a fourth example +%% of +where the + meta-theorems from Sections +\ref{3uuuu3} and \ref{sect64} +can be useful. +Thus, +the footnote +\footnote{\b55 The +discussion in \cite{ww9} + did not +technically +use + Definition \ref{estab}'s machinery +to establish +%that +there existed an extension of +its ``Ax-3'' encoding for +I$\Sigma_0$ that could recognize its own Herbrand consistency. +Its formalism, +however, + could be +easily couched in terms of + Definition \ref{estab}'s machinery, if one uses a +generic +configuration $~\xi^R~$ where +\bee +\item $~\xi^R\,$'s +base language is the same as the usual language of +arithmetic, +\item $~\xi^R\,$'s +$~\Delta_0^R~$ sub-class is defined by +Item (b) in Example \ref{ex3-1}, +\item $~\xi^R\,$'s +base axiom system +is \cite{ww9}'s ``Ax-3'' system, +\item $~\xi^R\,$'s +deduction method +is either a Herbrandized styled-method +or a Resolution system that relies upon +Skolemizatin in a similar manner. +\item $~\xi^R\,$'s G\"{o}del encoding scheme +may be any such +natural method. +\ene +This approach +supports a +% somewhat + stronger form of +self-justification result +than +had +appeared in \cite{ww9}. +This is +because $~\xi^R~$ can be proven to be E-stable (by a +% straightforward +generalization of \cite{ww9}'s analysis +techniques). +Thus, + \phx{ppp2} +implies +that +Ax-3 has a well-defined self-justifying extension +that +can recognizes its own +formalized + Level$(0^R)$ consistency. +(This +self-justification result +is stronger than +\cite{ww9}'s main theorem. +The latter +merely established +that some extension of Ax-3 +recognized the non-existence of a +Herbrandized deduction of $0=1$ from itself.) \fend } +summarizes how a fourth +type of +generic configuration, +called $~\xi^R~$, +can be defined + that both duplicates +\cite{ww9}'s +main + self-justification results +under the above definition of +Herb-deduction, +as well as strengthens +them. (In particular, + $~\xi^R~$ meets +Theorem \ref{ppp2}'s +requirements, +and self-justifying +extensions of its Ax-3 system thus +recognize their +%own + Level$(0^R)$ consistency.) + + + + +\parskip 2pt + + + + + +The properties of our +four generic configurations of $~\xi^R$, + $~\xi^*~$, + $~\xi^{**}~$ and $~\xi^-~$ are summarized by Table I. +These configurations are +listed in ascending order according to the strength +of their deduction methods $~d~$. As their deduction methods +increase in strength, +these configurations +% the associated configurations +have +their ability +reduced +%weakened + to recognize +the totality of +the addition and multiplication operations. +%% +%% +%% (This is because the corresponding generic configurations will +%% violate the requirements of the Second Incompleteness Theorem, +%% if they simultaneously use too strong a deduction method +%% and possess too strong an understanding of their +%% own consistency.) + + + + + +$~\xi^R\,$ is thus a Type +Almost-M +system +that +can prove multiplication is a total function +(but +which +does not contain +\ep{totdefsymbm}'s + totality statement {\it as an axiom)}. +On the other hand, $~\xi^-~$ +uses a stronger Hilbert-styled + deduction methodology, +which is incompatible with treating +the totality of addition or multiplication as either +axioms {\it or as derived theorems.} +%% (This incompatibility is unavoidable because the +%% Theorem 2.1, due to the joint work of +%% Nelson, +%% Pudl\'{a}k, +%% Solovay and Wilkie-Paris +%% \cite{Ne86,Pu85,So94,WP87}, +%% implies that self-justifying systems cannot simultaneously +%% recognize successor as a total function and prove their +%% own Hilbert consistency.) + + + + + + +Each of Table I's +rows + $ \, \xi^R$, + $ \, \xi^{**} \, $ and $ \, \xi^- \, $ +are maximal (in that an alternate row +improves upon one column's measurement +only when it is +weaker from the perspective of +another +column). +Only $ \, \xi^* \, $ +is +an exception to this rule: It is +strictly +weaker +\footnote{\b55 \label{f28} $ \xi^{**} $ employs a stronger +deduction method +than $ \xi^* $ +because it allows a modus ponens rule for $\Pi_1^*$ and +$\Sigma_1^*$ sentences to be added to semantic tableaux +deduction +(see \cite{ww5} for the precise definition of this +``Tab$-U_1^*~$'' + modification of the semantic tableaux +deductive method). \fend } + than + $ \, \xi^{**} $. + This appendix has discussed + $ \, \xi^* \, $ +%% despite its sub-optimality, +%% %primarily +%% partly +because it makes + Theorem D.\ref{D.4-theorx}'s proof simpler + (and also because + semantic tableaux + % deduction + is a + % very + frequent topic in the logic literature). + + %%%footnnnnnnnnn + + + +%\smallskip + +\begin{center} +{\bf Table I} +\end{center} + + +\bigskip + +\small +\baselineskip = 1.1 \normalbaselineskip +\noindent +\begin{tabular}{|c|c|c|c|c|c|c|} \hline +Name & Deduction Method & Type & Almost & Type & {\bf Axiom} +& {Self-Just } \\ + & & {\bf A} +& {\bf M} & {\bf M} & { Format} & { Level} +\\ \hline\hline + & Resolution and/or & & & & & \\ + $\xi^R$ & Herbrandized analogs & Yes$^{35}$ + & Yes & No & E-stable &Level $(0^R)$ \\ \hline + & & & & & & \\ + $\xi^*$ & Semantic Tableaux & Yes & No & No & EA-stable & Level $(1^*)$ \\ \hline + & & & & & & \\ + $\xi^{**}$ & Tab$-U_1^*$ Deduction$\, ^{34}$ & Yes & No & No & EA-stable &Level $(1^*)$ \\ \hline + & & & & & & \\ + $\xi^{-}$ & Hilbert Deduction & No & No & No & EA-stable & + Level $(\, \infty^{-} \,)$ \\ \hline +\end{tabular} + +%\njp + +\bigskip +\normalsize +\cvl + + +%\cvt + +\parskip 0pt + +%\nskip +%\nskip + +\bigskip +The footnote +\footnote{\b55 For the sake of simplicity, + the Ax-3 system of \cite{ww9} did not + use either + Equations + \eq{totdefxa} or + \eq{totdefsymba}'s + as axiom statements +(since they were +provable as theorems). + All + \cite{ww9}'s + results + do, +however, generalize +% readily + when +\eq{totdefxa}'s +statement about +addition's totality +is included as +%added +an axiom. +Thus, it is appropriate to attach the designation +of ``Yes'' with a caveat to the ``Type-A'' entry +in Table I's first row. (This row is called +``Resolution and/or Herbrandized analogs'' +because it applies +to +essentially +any deduction scheme that relies upon Skolemization +as an alternative to \cite{Fi90}'s +semantic tableaux +existential quantifier elimination rule.)} , + attached to Table I's first row, +explains why a caveat is attached to its first +``Yes'' entry. +The theme of Table I is +%thus +that self-justifying +axiom systems have some nice redeeming features, +although +the + Second +Incompleteness Theorem +clearly also +imposes +severe + limits on their abilities. +This point will be reinforced +when +Appendix E introduces a generalization of the +Second Incompleteness Theorem, +that shows +\thx{ppp6}'s translational reflection principle is close +to being a maximal feasible result, and when Appendix F +discusses the epistemological significance +of self justification. + + +%% +%% the next two sections discuss +%% hybridizations of +%% Theorems \ref{pqq4} +%% and \ref{pqq5} +%% and the epistemological implications +%% of self justifying systems. + + + +%% +%% an alternate system +%% and when +%% Appendix F discusses the +%% epistemological implications +%% of self justification. + + +%% +%% the next two sections discuss +%% hybridizations of +%% Theorems \ref{pqq4} +%% and \ref{pqq5} +%% and the epistemological implications +%% of self justifying systems. + +\nskip +\nskip + + +%% +%% an alternate system +%% and when +%% Appendix F discusses the +%% epistemological implications +%% of self justification. + + +\nop + +\section*{Appendix E: A Clarification of +Theorem \ref{ppp6}'s Significance} + +% An Anti-Reflection Principle for +%\LARGE +% \baselineskip = 1.8 \normalbaselineskip + + +It has been known since the time of G\"{o}del that +most conventional +arithmetic +axiom systems will satisfy the following two +invariants: +\bee +\item +They are {\it physically unable} to prove +their own consistency +\item +They are $\Sigma_1$ +complete. This means they can +formally prove any $\Sigma_1$ +arithmetic sentence that holds +true in the Standard-M model, and +they can likewise refute any +$\Pi_1^\xi$ sentence +that is false. +\ene +Let $~\xi~$ denote any generic configuration of the +form \gggcp . This appendix will use the +term {\bf $\xi -$Conventional} to describe any axiom +system that satisfies analogs of the +preceding +%two +conditions for generic configurations. +Thus +$~\alpha~$ is +$\xi -$Conventional +iff it satisfies the following two +criteria: +\bed +\item[ a. ] +The axiom system $~\alpha~$ +will be {\it unable} to verify +its own consistency under $~\xi\,$'s +deduction + method of $~d~$. +\item[ b. ] +The axiom system $~\alpha~$ +will be an extension of $~\xi \,$'s base axiom of $~B^\xi~$. +Part-3 of Definition \ref{def3.3} will thus imply it +is +$\Sigma^\xi_1$ +complete. (Hence, $~\alpha~$ can +formally prove any $\Sigma^\xi_1$ sentence that holds +true in the Standard-M model, and +it can likewise refute any +$\Pi^\xi_1$ sentence +that is false.) +\ennd + +This section will prove no analog of \ep{T-reflect}'s +translational reflection principle is feasible for +$\xi -$Conventional axiom systems. Thus, +Theorem \ref{ppp6} must be close to being a maximal result, +since it cannot +plausibly +be further extended to hold under conventional axiom systems. + +\medskip + +{\bf Theorem E.1} (A New Type of Version of the Second Incompleteness +Theorem): +{\it +There exists no +$\xi -$Conventional +axiom +system $~\alpha~$ +that can prove the validity of +\eq{G-reflect}'s +Translational Reflection Principle +for any translation-mapping T.} +(In other words, +there exists no + algorithm $~T~$ that +maps +$~\Pi_1^\xi$ sentences $~\Psi~$ +onto alternate $~\Pi_1^\xi$ +sentences +$~\Psi^T~,~$ +which + are equivalent +to $~\Psi~$ +in the +Standard-M model +and where $~\alpha~$ can +verify +\eq{G-reflect}'s reflection principle for every +$~\Pi_1^\xi$ + sentence $~\Psi .~)$ +% +%simultaneously +%for +% all $~\Pi_1^\xi$ sentences +% $~\Psi~$.) +\beq +\label{G-reflect} +\forall ~p~~~[~~ \mbox{Prf}_{\alpha,d}(~\lceil \, \Psi \, \rceil~,~p~) + ~~~ \Rightarrow ~~~ \Psi^T~~] +\enq + + +{\bf Proof:} $~$It is easy to prove Theorem E.1 via a +proof-by-contradiction. Thus consider the possibility +that Theorem E.1's translational mapping $~T~$ did exist. +One can then easily select a $~\Pi_1^\xi$ sentences $~\Psi~$ +that is false in the +Standard-M model. +Then +$~\Psi^T~$ is also false under the +Standard-M model +(since + $~\Psi~$ +and +$~\Psi^T~$ +are equivalent in this model). + + +%% Moreover, $T$'s definition requires +%% $\Psi^T$ +%% to have a $\Pi_1^\xi$ format. +%% Thus, + +Hence +Part-b of the definition of +$\xi -$Conventionality implies +$~\alpha~$ must prove +$~\neg~\Psi^T$ + (on account of $~\Psi^T\,$'s +$\Pi_1^\xi$ format). + + +It is at this juncture that our proof-by-contradiction will +reach its end. This is because if $~\alpha~$ can prove +\eq{G-reflect}'s statement +and +{\it also prove} + the sentence $~\neg~\Psi^T~$, + then it +certainly can combine these two facts to prove the +non-existence of a proof of $~\Psi~$. +The latter +contradicts +Part-a of the definition of +$\xi -$Conventionality (because it shows $~\alpha~$ +can verify its own consistency). $~~\Box$ + + +%% The latter would +%% contradict +%% Part-a of the definition of +%% $\xi -$Conventionality (because it would show $~\alpha~$ +%% can verify its own consistency). $~~\Box$ + +\bigskip + +{\bf Remark E.2.} +We remind the reader that +Footnote \ref{imper} +pointed out that +$T$'s translational mapping +would lose its main functionality, if +it did not require $\Psi^T$ +to have a $~\Pi_1^\xi~$ format, +similar to $\Psi$. +In essence, +Theorem E.1 is +of interest +because it shows that +Theorem \ref{ppp6}'s evasion of the Second Incompleteness Theorem +is close to +being a maximal result. +%(because +(It thus shows that \eq{G-reflect}'s +translational reflection principle does not generalize +to conventional +axiom systems.) +%settings.) +This +dichotomy +may explain why self-justifying axiom systems, +along with Theorem \ref{ppp6}'s +particular + invariant, +are +potentially useful results. + +%surprising topics. + + + % {\bf Remark E.2.} +% The +% preceding proof +% of Theorem E.1 makes it +% clear +% that its generalization of the +% Second Incompleteness Theorem +% is a +% straightforward +% result. It is + + + +\cvl + + + + + +\section*{Appendix F: Epistemological +Perspective and Speculations} + + + +\cvs + +\parskip 6pt + +It is desirable to include a short +purely +epistemological +discussion +within this +mostly mathematical article so that +the more subtle nature of our + results +cannot be +misconstrued. + +Part of the reason +Self Justification +can lend itself +to +easy +misinterpretations is that +the +First Incompleteness Theorem +demonstrates +the +impossibility of +constructing an ideally +optimal axiomatization of number theory. +For +any initial +r.e$. \,$axiom system $~\alpha~$ +and deduction +method$~d$, +G\"{o}del +thus +noted +it is +easy +\footnote{ \b55 +Let $\mho(a,d)$ the +classic + G\"{o}del +sentence +that asserts: +{\it ``There is no proof of {\it this sentence} from +$\alpha$'s +axiom system +under $\,d$'s deduction method.''} +G\"{o}del +\cite{Go31} + noted +$~\alpha+\mho(\alpha,d)~$ +always proves more theorems than $\alpha$.} + to +develop + an extension of $~\alpha~$ +that can prove +strictly more +theorems than $~\alpha~$ under + $\,d$'s +deduction method. +Moreover, a large number of generalizations of the Second Incompleteness +Theorem, starting with its 1939 +Hilbert-Bernays version +\cite{HB39}, are known to be +%very +robust results. + +Such considerations +naturally lead to questions +about whether +any + r.e$. \,$axiom system can encompass the workings +of the human mind. It may surprise some readers to learn +that this author +shares +such + skepticism. +That is, +we +doubt +{\it any single ISOLATED} self-justifying +r.e.$\,$logic +can {\it fully} approximate +the complex workings of the human mind. + + +In this short appendix, +let us instead +view cogitation +as +{\it roughly} a +process wondering +though some universe $ \, \nal{U}$, +comprised of +{\it both} consistent and +inconsistent axiom systems, +with a +trial-and-error evolutionary method +focusing + its attention +over time +increasingly +onto + the members of this universe + $~ \nal{U}~$ that are found to be + consistent. +It is +% +%%notre +% +% +%%notre-only straightforward +% +%easy +% +%%cccorn-ff +%%cccorn-cc + straightforward\footnote{ \b55 It + is trivial from a theoretical perspective + to design a + learning heuristic that + will utilize all + consistent axiom systems + from + its available universe $ \nal{U}$ + eventually, and + it will + spend only an infinitesimal fraction of its effort on + inconsistent systems as time runs to infinity. + (This because + there exists only + a countable number of distinct r.e. sets + belonging to the universe + $ \nal{U}.~)~$ + Also, + this + learning + process can + presumably be made to + employ + some type of + smart souped-up + AI heuristics to enhance its efficiency, + whose details will not concern us + % here + in this abbreviated 3-page appendix. + What is + central to the current discussion + is that some type of formally + {\it non-recursive} + and presumably trial-and-error + method must + obviously + be used + by this learning process + to find + the consistent elements of + $~ \nal{U}~,~$ + on account of G\"{o}del's + undecidability results.} + %% + %% + to define +many +universes $~ \nal{U}~$ and + evolutionary processes that +fall into this gendre. +Our +goal +in this section +will be to +examine + Section \ref{3uuuu3}'s +``R-View'' $\theta$ and its RE-Class$(\xi)$. + + + +Thus, $\theta$ will denote an +R-View +that consists of +an arbitrary +r.e$. \,$set of +$\Pi_1^\xi$ sentences. +Also, +RE-Class$(\xi)$ will +again +denote the +set of all +$~\theta~$ which +can be built under $~\xi \,$'s language +of +$\,L^\xi$. +(Section \ref{3uuuu3} +had +allowed + both valid and invalid +R-Views $~\theta$ + to appear in +RE-Class$(\xi)$ because +no recursive +decision +procedure can +identify +all +the Standard-M model's true $\Pi_1^\xi$ sentences.) + +%% \nop + +The epistemological purpose of this notation was revealed +in Section \ref{sect64}. +For the cases where $k = 0$ +or 1, +Section \ref{sect64} +defined +$G^\xi_k(\, \theta \,)$ +to be the +axiom system: +\begin{equation} +\label{f4gedef} +G^\xi_k(~ \theta ~)~~= ~~ +\theta~\cup~B^\xi~\cup~\mbox{SelfCons}^k\{~[~\theta \,\cup \,B^\xi~]~,d~\} +\end{equation} +Also, Definition \ref{dap4-1} indicated that + the function +$ \, G^\xi_k ~ $ +(which maps $ \, \theta \, $ onto +$G^\xi_k(\, \theta \,)~~~)$ would be +called +{\bf Consistency Preserving} iff +$ \, G^\xi_k(\, \theta \,) \, $is +assured to be consistent whenever +all the sentences in $~\theta ~$ +are +true under the Standard-M model. +\thx{pqq3} +indicated, +in this context, + that +$~G^\xi_1~$ +satisfies +this +property +whenever $~\xi~$ is +EA-stable. +Likewise, +$~G^\xi_0~$ +is consistency preserving whenever $~\xi~$ is +one of A-stable, E-stable or 0-stable. + +\nskip + + +These results indicate +a trial-and-error experimental process +can, indeed, walk +{\it in an +unusually +orderly manner} through an universe +of self-reflecting +candidate +formalisms, when +RE-Class$(\xi)$ denotes +$~ \nal{U}\,$'s +universe +and + $~\xi~$ satisfies any of +the EA-stable, E-stable, +A-stable or 0-stable conditions. +This is because if +$~\theta~$ designates +a +set of +$\Pi_1^\xi$ sentences +holding true +in + the Standard-M model, +then +$~G^\xi_k(\theta)~$ +will +{\bf automatically} +satisfy both Parts (i) and (ii) +of Section 1's definition of Self Justification, +according to \thx{pqq3}. + +Such +consistency preservation is +surprising because +it is simply inapplicable to +%does not apply to +the $\,G^\xi_k \,$ +% functions of + functions for +most +pairs $~(\xi,k).$ +\thx{pqq3}'s first + contribution +is, + thus, +that it formalizes +how $G^\xi_k\,$'s mapping function +can +represent + a type of approximation +for +instinctive faith, +under certain well-defined circumstances. + + +This notion of instinctive faith is, of course, +less +robust than a conventional proof. +One +obvious + difficulty +is that a 1-sentence proof, +using an {\it ``I am consistent''} axiom, +is +less convincing +than a full-length proof from first principles. Also, if +the initial formalism $~\theta~$ contains a false +$~\Pi_1^\xi~$ sentence then $~B^\xi+\theta~$ +and $~G^\xi_k(\theta)~$ +will be both inconsistent. + + + +\nop + +\cvl + +Nevertheless +for $\,k\,$ equals 0 or 1, + if $~\theta~$ is comprised of the true sentences +in the Standard-M model, then +\thx{pqq3} +will +assure that +$~G^\xi_k(\theta)~$ is +a consistent system that has an ability +to +use its {\it ``I am consistent''} +axiom sentence +to +formalize +its +own consistency. +Moreover, the axiom system +$~G^\xi_k(\theta)~$ is helpful because +G\"{o}del's famous centennial paper +% has certainly +implicitly +raised +the following +bedeviling +issue: +%dilemma: +\begin{quote} +$\#~~$ How is it that Human Beings + manage +to muster +the physical +drive +to think (and prove theorems) when the many +generalizations of +G\"{o}del's Second +Incompleteness Theorem +demonstrate +conventional logics +lack knowledge of +their own consistency? +\end{quote} +While philosophical paradoxes and ironical +dilemmas, +similar to +$~\# ~,~$ + never yield +perfect answers, the preceding discussion is helpful +because it +explores +a +certain +syllogism +% paradigms +whereby a logic +can +formalize + at least some +fragmented +operational + appreciation of its own consistency. + +Moreover, +Part-3 of Appendix D + indicated that its +four self-justifying configurations were + close to being maximal results +that cannot be +much +improved, +on account of various +barriers imposed by + the Second Incompleteness Theorem. +Thus, these +particular + positive results, +combined with Theorems \ref{ppp1} +\ref{pqq3}, \ref{pqq4}, +\ref{pqq5}, + \ref{ppp6}, +D.4, E.1, + G.2, G.3 and Remarks +\ref{re4-1} and + \ref{recc1}, +come +close to formalizing the +maximal variants of instinctive faith that a +first-order logic can +bolster. + + + +The theme of the last two paragraphs +is +thus + that our approximation of + {\it ``instinctive faith''} may be imperfect, but it +is still a useful partial reply to +$~\# \,$'s puzzling +dilemma +{\it in a context where} +unambiguous +full +resolutions to $\, \# \,$ +{\it are not permitted by} +the Second Incompleteness +Theorem. +Furthermore, +\ep{T-reflect}'s +translational reflection principle, +together with Theorem \ref{ppp6} +and the Remarks \ref{f88} and \ref{remhappy}, +illustrate how the notion of + an instinctive faith +about the usefulness of $\Pi_1^\xi$ theorems + can +be +almost physically +{\it hard-wired} into self-justifying formalisms. + + +%%% instinctive faith +%%% about the validity of $\Pi_1^\xi$ theorems +%%% can +%%% be +%%% almost physically +%%% {\it hard-wired} into self-justifying formalisms. + + + + + + +%%cccorn-ff + + \bigskip + {\bf A Yet Further + Facet + of this Unusual Epistemological Interpretation: } + Let + % us use + the term + {\it Epistemological Bundle Theory} + refer to + the underlying + theory, advanced in this appendix, which + speculates about a + Thinking Agent + % as + walking + through + RE-Class$(\xi)$'s + bundled universe of valid and invalid + collections of $\Pi_1^\xi$ sentences + and + then applying some heuristic to + attempt to + identify + %locate + % locate (via heuristics) + those + % particular elements + $\theta \, \in \,$RE-Class$(\xi)$ + whose sentences are true under the Standard-M model. + + Such a + theory has a second virtue, aside from + % its + addressing $ \# \,$'s + paradoxical question + about the nature + of {\it ``instinctive faith''. } + It also clarifies + the meaning of + our main theorems + %% + %% + %% and simplifies + %% the + %% % mathematical + %% structure of + %% Sections + %% \ref{3uuuu1}-\ref{sect64}'s theorems + %% % formal + %% + %% + and the related + E-stability, A-stability, + EA-stability and + RE-Class$(\xi)$ constructs. + + + %% + %%help + %%analyze + %%%prove their theorems about + %%self-justification. + %%It turns out that + %%%A nice aspect about the + %% epistemological bundling + %%can explain the motivation behind these + %%theorems. + %% + %% + %%*is that it can explain much of the intuition behind + %%* these theorems. + + + This is because the + Items $\, * \,$ and $\, ** \,$ + from the + definitions of + A-stability and E-stability + in Section \ref{3uuuu3} + formalize + how a thinking agent $~T~$ can view short + proofs from a {\it technically inconsistent} axiom system + of $~B^\xi \cup \theta~$ as containing + % some + pragmatically + useful information + {\it under the assumption} that the + lengths + % FIXED ALREADY length's length's length's + of $~T\,$'s proofs {\it are shorter} + than + the errors in + $~\theta\,$'s $\Pi_1^\xi$ styled-statements. + The pleasing aspect + about this + observation, illustrated by + % for example + Remark \ref{re3-1}, + % + % epistemological bundling + is that those same invariants, + $\, * \,$ and $\, ** \,$, + which +%%%%% can + tempt a + thinking agent $~T~$ + to engage in a trial-and-error walk through + RE-Class$(\xi)$'s bundled universe, + %% are + also + %% the invariants that + make + viable + %% the operating prerequisites for making + \thx{ppp1}'s self-justifying formalisms. + + + %active. + + Thus aside from + addressing + $\, \# \,$'s dilemma about the nature of + instinctive faith, + the + % mathematical + meta-formalism in this appendix + is + %was + % also + useful + %in + %venting + % for + in explaining + the + % underlying + motivation behind the + %very + %quite + % fairly + elaborate + network + % labyrinth + of + theorems, proofs and definitions + %raised + that were introduced + % had + %appeared + in this + paper. +In summary, +EA-stable logics are thus + interesting both +in their own right +(as a vehicle + enabling a Thinking Being to partially tolerate +its own errors), and +because +they are useful in explaining +how a Thinking Being +can possess a type of instinctive +faith in its own consistency +(via the +reflection +principles of + Theorem \ref{ppp6} +and +of Remarks \ref{f88} and \ref{remhappy}). + + + + + + +\cvl + +\section*{Appendix G: Improvements upon Theorems \ref{pqq4} +and \ref{pqq5} } + +Let us recall that +Remark \ref{re4-n} indicated that there was a +subtle +trade-off between +Theorems \ref{pqq4} +and \ref{pqq5}, +where neither result was +strictly + better than the other. +This section +will introduce +two hybrid +methodologies, using +Definition G.1's +formalism, that +improve upon \thx{pqq5} +while retaining a large part of \thx{pqq4}'s +nice features. + +\hgskip + +% \cvt +\parskip 2pt + + +{\bf Definition G.1} +Let $~\xi~$ denote +the generic configuration, +whose base axiom system is again denoted as +$ \, B^\xi \,$, +$\,~ \Phi~$ denote any $\Pi_1^\xi$ +sentence +that is true in the Standard-M model +and +$~j~$ denote an index that represents some +predicate + Test$^\xi_j \,$ +lying +in Definition \ref{gsim}'s + TestList$^\xi$ sequence. Then +a +$\,\Pi_1^\xi \,$ sentences $\Psi $ + will be said to be a +{\bf Braced}$^\xi( \, \Phi \, , \, j \, )$ expression when +$~ B^\xi \, + \, \Phi~$ can prove: +\beq +\label{punch} +\{~~~ \forall ~x~~~ +\mbox{Test}_j^\xi(~\lceil~\Psi~\rceil~,~x~) ~~~\} + ~~~~\longrightarrow ~~~~ \Psi +\enq + + +\medskip + + + + + +{\bf Theorem G.2} +{\it $~$Let $ \,\xi \,$ again +denote an arbitrary generic configuration + \gggcp, +and let + $( \nal{B},D)$ again denote any second axiom system and deduction +method whose $\Pi_1^\xi$ theorems are true under the +Standard-M model. +Then for any +integer $~j~$ and for any + $\Pi_1^\xi$ sentence +$~\Phi~$ that is true in the +Standard-M model, + the following invariants +do hold:} +\bed +\item[ i ] +{\it If $ \, \xi \, $ is EA-stable\sss +then there +will exist a self-justifying +$~\beta_j~\supset~B^\xi$ that +can recognize its +Level$(1^\xi$) + consistency, +contains +only {\bf a finite number} of additional axioms +beyond those appearing in +$~B^\xi$, + and which +can +prove +all of $( \nal{B},D)$'s $\Pi_1^\xi$ theorems that +are Braced$^\xi( \Phi ,j)$ expressions.} +\item[ ii ] +{\it Likewise, +if $\xi$ is + E-stable, A-stable or 0-stable +then + a +self-justifying +$\beta_j \supset B^\xi$ +will exist +with the same properties except +that it +recognizes its own +Level$(0^\xi$) + consistency.} +\ennd + +\medskip + + + + +{\bf Proof.} +To justify +Theorem G.2, we must first define +the axiom system $~\beta_j~,~$ +whose existence is claimed by +Items (i) and (ii). +It will be defined to +consist of the union of +the initial base axiom system + $B^\xi$ +with the following three added axiom-sentences. +\bed +\item[ 1 ] +The $\Pi_1^\xi$ sentence $~\Phi~$ +used +by Definition G.1's + Braced$^\xi( \Phi ,j )$ formula. + +\smallskip + +\item[ 2 ] +A GlobSim$^D_{ \nal{B}} \,(\xi,j)$ sentence whose indexing +integer $ \, j \,$ +is defined by Definition G.1. +This global simulation sentence is +thus the statement: +\beq +\label{glob2} +\forall ~t~~ +\forall ~q~~ +\forall ~x~~\{~~ +[~~\mbox{Prf}_{ \nal{B}}^D \,( t , q )~~ \wedge ~~ +\mbox{Check}^\xi(t)~~]~~~ +\longrightarrow ~~~ +\mbox{Test}_j^\xi(t,x) ~~~\} +\enq +\item[ 3 ] +A $\Pi_1^\xi$ sentence + of the form +$\mbox{SelfCons}^k\{~[~\theta \,\cup \,B^\xi~]~,d~\}~$ +where: +\bed +\item[ a ] +$\theta~$ is an R-view +consisting of the two + $\Pi_1^\xi$ sentences defined by +Items 1 and 2. +\item[ b ] +$B^\xi\,$ is $~\xi \,$'s base axiom system, +and +\item[ c ] +$k~$ equals respectively + 1 and 0 under formalisms (i) and (ii). +\ennd +\ennd +Thus, +the system $\beta_j$ +uses identical definitions + under +formalisms (i) and (ii), +except +that +its third sentence will use a different value for +$~k~$. +Our proof of +Theorem G.2 +will require first confirming +the following fact: +\begin{description} +\item[ Claim * ] +The axiom system +$\,\beta_j \,$ (which consists of the union of +$B^\xi$ with the + sentences 1-3) +will have a capacity +to prove every +Braced$^\xi( \Phi ,j)$ +sentence $~\Psi~$ +that is a + $\Pi_1^\xi$ + theorem of +$( \nal{B},D)$. +\end{description} +The proof of Claim * is quite simple. +It will rest on +the following +three +observations: +\bed +\item[ a ] +For each $\Pi_1^\xi$ sentence $\Psi$, +the system $~\beta_j~$ +must certainly +have a capacity to prove +\eq{glob21}'s sentence (which +states +that $~\Psi\,$'s +G\"{o}del number +formally +encodes +a $\Pi_1^\xi \,$ statement). This +is because +\eq{glob21} + is true + in the Standard-M +model + and +because Part 3 of Definition \ref{def3.3} +indicated +that + the +$~B^\xi~$ +sub-component of $~\beta_j~$ +has a capacity to prove + every +$\Delta_0^\xi$ sentence + that is true. +\beq +\label{glob21} +\mbox{Check}^\xi( ~ \lceil \, \Psi \, \rceil ~) +\enq +\item[ b ] +Since +Claim $\,* \,$ specifies + $~\Psi~$ is a theorem of + $( \nal{B},D)$, +there must certainly exist some integer +$~N~$ that is the G\"{o}del number of its proof from + $( \nal{B},D)$. This implies that +\eq{glob22} must be a true +$\Delta_0^\xi$ sentence + under the Standard-M model. +As was the case with \ep{glob21}, this implies +that +it must be provable from +$~B^\xi~$ (because it is a valid +$\Delta_0^\xi$ sentence). +\beq +\label{glob22} +\mbox{Prf}_{ \nal{B}}^D \,( ~ \lceil \, \Psi \, \rceil ~ , ~ N ~ ) +\enq +\item[ c ] +It is apparent that +Equations \eq{glob2}, \eq{glob21} and \eq{glob22} +imply the validity of \eq{glob23}. +Moreover, Part 4 of Definition \ref{def3.3} indicated that +the generic configuration $~\xi\,$'s deduction method +does satisfy G\"{o}del's Completeness Theorem. +This fact assures that +$~\beta_j~$ must be able to prove +\eq{glob23} because it contains +\eq{glob2} +as an axiom and + \eq{glob21} and \eq{glob22} +as derived theorems \footnote{\label{fcomp} \sm55 +Every deduction method $\,d$, +$\,$satisfying G\"{o}del's Completeness Theorem, +will be automatically able to prove +a theorem $~Z~$ +when it contains +$X$, $Y$ and $~(X \wedge Y)~\rightarrow ~Z~$ as +theorems, irregardless of whether or not it contains +an explicit built-in +modus +ponens rule. +Thus $~d~$ can prove +\eq{glob23} because of its knowledge about +\eq{glob2}--\eq{glob22}'s validity.}. +\ennd +\vspace*{- 0.1 em} +\beq +\label{glob23} +\forall ~x~~~ +\mbox{Test}_j^\xi( ~ \lceil \, \Psi \, \rceil ~ , ~ x ~ ) +\vspace*{- 0.1 em} +\enq +Claim $*$ is a +consequence of +Observations a-c. This is because +$ \, \Phi \, $ +is one of $ \, \beta_j \,$'s defined axioms, +and +Definition G.1 +indicated + $ \, B^\xi \, + \, \Phi \, $ was capable of proving +\eq{punch}'s statement + for every Braced$^\xi( \Phi ,j )$ sentence $ \, \Psi \, $. +These facts corroborate Claim $*$ +because they imply +that $ \, \beta_j \, $ +must be able to verify +Claim $\,* \,$'s + sentence + $ \, \Psi \, $ (because + $ \, \beta_j \, $ +can verify statements +\eq{punch} and \eq{glob23}). + + + + + + + +\medskip + +The remainder of +Theorem G.2's proof is +analogous +to +\phx{pqq5}'s proof. +This is because the prior paragraph +established +that $~\beta_j~$ can prove +every + Braced$^\xi( \Phi ,j )$ +theorem of + $( \nal{B},D)$ +(as was required by + Claims i and ii ). +The only +remaining task is to +show that + $~\beta_j~$ is a self-justifying formalism that can +recognize its +Level($1^\xi$) and Level($0^\xi$) +consistencies, +as specified by + Claims i and ii. +This part of +Theorem G.2's + verification +is identical +to +the methods used +to prove +Theorems \ref{pqq3} and \ref{pqq5}. +It +will +thus + not be repeated +here. + $~~\Box$ + + + +\medskip + + + +The last part of this appendix will +require the +following additional + notation to formalize +the main intended application +of +Theorem G.2's +formalism. +\bee +\item +\topsep -7pt + Count$( \Psi )$ will denote +the number of +quantifiers appearing in the sentence $\Psi$ +(including both its bounded and unbounded quantifiers). +\item +Size$^\xi(c)$ +will +denote the set of $\Pi_1^\xi$ sentences +$\Psi$ where Count$( \Psi ) \, \leq \, c \,$. +\ene +Our next theorem will be a specialized +variant of +Theorem G.2, using the +Size$^\xi(c)$ construct. +It will explain the + intended application +of +this +formalism: + + + + +\medskip + + +{\bf Theorem G.3.} +{\it +$~$Let $~\xi~$ denote any one of Appendix D's four sample +generic configurations of $~\xi^*~$, +$~\xi^{**}~$, $~\xi^-~$ or $~\xi^R~$. +Then + for any $~c>0~$, +Theorem G.2's axiom systems +of $~\beta_j~$ +can be arranged so that +they can prove all of + $ ( \nal{B} , D ) $'s +Size$^\xi(c)$ + $\Pi_1^\xi$ +theorems while +simultaneously also + recognizing their: +\bee +\item Level(1) +consistency for the cases +when $ \, \xi \, $ is one of $ \, \xi^* \, $, +$ \, \xi^{**}\, $ or $ \, \xi^-$. +\item + Level(0) consistency when $~\xi~$ is +$~\xi^R~$. +\ene} + +\cvmew + +{\bf Proof Sketch:} +%% +%% There is +%% insufficient +%% space to prove +%% Theorem G.3 here, but its intuition +%% is easy to summarize. +%% +%% + The intuition behind +Theorem G.3's proof is +quite easy to summarize. +For +arbitrary $ c>0 $ +and any +of Appendix D's configurations of + $ ~ \xi^* ~ $, +$ ~ \xi^{**} ~ $, $ ~ \xi^- ~ $ and $ ~ \xi^R ~ $, +it is +routine to + construct an ordered pair $ ~ (\Phi,j) ~ $ where every +$\Pi_1^\xi$ sentence of +Size$^\xi(c)$ is a + Braced$^\xi( \Phi ,j )$ expression. +Theorem G.3's +first claim is, +thus, a +consequence of +Part (i) +of Theorem G.2 + and +the fact that each of + $ ~ \xi^* ~ $, +$ ~ \xi^{**} ~ $ and $ ~ \xi^- ~ $ +are EA-stable. +Likewise, Theorem G.3's +second claim follows from +Part (ii) +of Theorem G.2 + and the fact that +$ ~ \xi^R ~ $ is E-stable, +$~~\Box$ + +\bigskip +\medskip +%\parskip 0pt + +{\bf Remark G.4.} +The Theorems G.2 and G.3 are +of interest because the set of +$\Pi_1^\xi$ sentences of +Size$^\xi(c)$ is a natural class to examine. +It is, +thus, tempting to consider +a system that +recognizes +its own +formal + consistency, uses only a finite +number of axiom sentences beyond those in $~B^\xi~,~$ and +which +can + prove all of + $ ( \nal{B} , D ) $'s + $\Pi_1^\xi$ theorems +of Size$^\xi(c)$. +Such a system +replies to +Remark +\ref{re4-n}'s challenge by +% nicely + hybridizing the properties of +Theorems \ref{pqq4} +and \ref{pqq5}, +%% . +in a seemingly pragmatic manner. + + + + + + +\newpage + +\begin{thebibliography}{99} + + +\baselineskip = 1.15 \normalbaselineskip + +\parskip 6 pt + + + + +\bibitem{Ad2} +Z. 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Willard, +``How to Extend The Semantic Tableaux And +Cut-Free Versions of the Second +Incompleteness Theorem +Almost +to +Robinson's Arithmetic'', +{\it Journal of Symbolic Logic} +$~\,67~ (2002)~$pp. 465--496. + + + +\bibitem{wwlogos} +D. Willard, +``A Version of the +Second Incompleteness Theorem For Axiom +Systems that Recognize Addition +But Not Multiplication as a Total Function'', +{\it First Order Logic Revisited,} +Logos Verlag (Berlin) 2004, pp. 337--368. + +\bibitem{ww5} +D. Willard, +``An Exploration of the Partial Respects in which an Axiom +System Recognizing Solely Addition as a Total Function Can +Verify Its Own Consistency'', +{\it Journal of Symbolic Logic} 70 (2005) pp. 1171-1209. + +\bibitem{ww6} +D. Willard, +``On the Available Partial Respects in which + an Axiomatization +for Real Valued Arithmetic Can Recognize its +Consistency'', +{\it Journal of Symbolic Logic} 71 (2006) +pp. 1189-1199. + +\bibitem{wwapal} +D. Willard, +``A Generalization of the Second Incompleteness +Theorem and Some Exceptions to It''. +{\it Annals of Pure and Applied Logic} +141 (2006) +pp. 472-496. + + + +\bibitem{ww7} +D. Willard, +``Passive induction and a solution to a Paris-Wilkie +question'', +{\it Annals of Pure and Applied Logic} +146(2007) +pp. 124-149. + +\bibitem{ww9} +D. Willard, +``Some Specially Formulated Axiomizations for +I$\Sigma_0$ +Manage to +Evade +the Herbrandized Version of the Second Incompleteness Theorem'', +{\it Information and Computation} +207(2009) 1078-1093 + +\bibitem{Wr78} +C. Wrathall, ``Rudimentary Predicates and Relative Computation'', +{\it Siam Journal on Computing} 7 (1978), pp 194-209 +\end{thebibliography} + + + +\end{document} + diff --git a/nachlass/collected_dew_materials/2011-2019/2015-aug10.bak b/nachlass/collected_dew_materials/2011-2019/2015-aug10.bak new file mode 100644 index 0000000..b2f60d0 --- /dev/null +++ b/nachlass/collected_dew_materials/2011-2019/2015-aug10.bak @@ -0,0 +1,7575 @@ +% 2015 upstairs aug 10 4.2 pm SUNY + +%% 2015 home % august 2 8.1 pm while listenihng to BobbyLee DoWap + +%% 12.45 appointment nicoloson + + % 2015 july 4 3.4 am after spell 10.1 am after sinatra + + % 2015 july 2 3.15 pm + +%% 2015 july 2 2.50 pm upstairs + +%% 2015 july 1 10.30 am downstairs + + + +%% notarized notes 2015 april 2 6.3 am april 4 notarize again + +%% home 2014 feb 8 1.15am (new email address) + +%% home 2015 feb6 4.3 am suny 2.40 pm home 6.15 pm + + +%% gmail dan.willard.albany and Prof.DanEdwardWillard +%% gmail password cpZ9ar48s + + +%%% SUNY JAN 11 Brad Copy 8.4 pm + +%% SUNY jan11 5/30pm spell check + +%% 2015 HOME jan 10 9.4 pm pm New Abstratct + +%% 512 6932 + +%% Towards a Restructuring of Hilbert's Consistency Program + +% www.cs.albany.edu/~dew/algor/ + +%\documentclass[11pt]{article} +%\documentclass[10pt]{article} +% \documentclass[12pt]{article} +\documentclass[11pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + + + + +% \addtolength{\oddsidemargin}{-0.95in} +\addtolength{\oddsidemargin}{-1.0in} + + + +\setlength{\textheight}{9.6 in} +\setlength{\textheight}{8.8 in} +\setlength{\textheight}{9.3 in} +\setlength{\textheight}{9.35 in} +%above too short + + +\setlength{\textwidth}{6.3 in} +%% PRINT + +\setlength{\textwidth}{6.0 in} +\setlength{\textwidth}{5.4 in} + +\setlength{\textwidth}{6.5 in} +% \setlength{\textwidth}{7.0 in} + + +% \setlength{\textwidth}{7.0 in} +% Above IDeall + + +%% \setlength{\textwidth}{6.4 in} +%%%% above brad with 11 point + +%\setlength{\textwidth}{6.0 in} +%\setlength{\textwidth}{5.7 in} + +%\setlength{\textwidth}{6.4 in} + +%\setlength{\textwidth}{5.5 in} + +%\addtolength{\topmargin}{-1.0in} +%\addtolength{\topmargin}{-0.9in} +\addtolength{\topmargin}{-0.8in} +%\addtolength{\topmargin}{1.2in} + +%\addtolength{\topmargin}{-.95in} +%\addtolength{\topmargin}{+.7in} +%%% delete above for pdf + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{dff}[theorem]{$~~~~$ Definition} +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\nop{ } +\def\nxp{ } +\def\nxp{ Here $~$NXP } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{Fact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + +%\title{Rough Summary of March 2012 Research Before I Attended +%the AMS March 17-18 Conference} + + +%% \title{ On +%% How the Revival of a Diluted +%% Version of +%% Hilbert's Consistency Program +%% %is +%% Should +%% Likely +%% Be +%% % Plausible and +%% % Veru +%% Germane +%% to Computer Science} + + + +\title{ A 2-Part Conjecture about +How a Much-Diluted but Non-Trivial +%Variant +Fragment + of +Hilbert's Consistency Program +Is +Likely +%Plausible +Feasible +for the +% Even the Challenging +Case of +Hilbert Deduction} + + + +% +% \title{ On +% How a Much-Diluted but Non-Trivial +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Is +% Likely +% %Plausible +% Feasible +% for Even the +% Challenging +% Case of +% Hilbert Deduction} +% +% %Plausible and +% % Veru +% % Germane +% %to Computer Science} +% +% +% %%% \title{\large \bf On the Revival of a Much-Diluted +% %%% but Non-Trivial +% %%% Version of +% %%% Hilbert's Consistency Program (And Its Applications +%%% for Computer Science, Mathematics and Philosophy)} + + +% \title{\large \bf On the Revival of a Modified and Diluted Version of +% Hilbert's Consistency Program (Extended Abstract)} + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{This research +was partially supported +by the NSF Grant CCR 0956495. +%Email = dew@cs.albany.edu.}} +%\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + +%\begin{abstract} +\baselineskip = 1.17 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + + + + +\begin{abstract} + +%\Large + +% \baselineskip = 1.8 \normalbaselineskip +%aaaaaaaaaaa + +\large +\LARGE + \normalsize +\large + +\baselineskip = 1.25 \normalbaselineskip + +It is well known that +the combined work of Pudl\'{a}k and Solovay \cite{Pu85,So94}, +enhanced by some added techniques of Nelson and Wilkie-Paris +\cite{Ne86,WP87}, implies + no reasonable axiom system +can verify its own Hilbert consistency, when it recognizes +Successor as a total function and treats addition and multiplication +as 3-way relations (as Example \ref{ex-2.3} will explain). +These considerations will lead us to examine +unconventional + axiomatizations +for arithmetic that continue to view addition and multiplication as +3-way relations, but +which replace the successor function symbol with an +entirely new operator, called the ``$~\theta~$'' primitive. + +\medskip + +% Our Propositions +% \ref{th-3.3} and \ref{th-6.1} +% will show this $~\theta~$ operator +% allow us + +This $~\theta~$ operator +will +allow us +to encode any integer $~n~$ by a term $~T_n~$ +whose length will exceed the $O[~$Log$(n)~]$ length of a +binary encoding +only by the +relatively + small magnitudes formalized by +Propositions +\ref{th-3.3} and \ref{th-6.1}. +This +paradigm will be +% issue is +%will be +significant because the combination of +our Appendix A and prior published results in \cite{wwapal} +will provide good reasons for conjecturing the + $~\theta~$ primitive can be used to construct logics that +can verify their own consistency under +the desired setting of +a Hilbert-styled +deductive methodology. + +\medskip + +The relationship between our new system and the aspirations of +Hilbert's consistency program will be discussed in detail. There can, +obviously, never exist a self-justifying logic that can evade the force +of G\"{o}del's Second Incompleteness Theorem in a fully ubiquitous respect. +Our conjecture will be, however, that +our methodology +implies a +{\it well-defined} +fragment of the goals of Hilbert's Consistency +program can be +% positively +achieved in a +{\it diluted +% but non-trivial} +but interesting} +respect. + + +\end{abstract} + +\bigskip +\bigskip + +\large +{\bf Keywords:} +\small +G\"{o}del's Second Incompleteness Theorem, Consistency, Hilbert's Second +Open Question, +Hilbert-styled Deduction (and its Frege-like analogs). + + + + +% \bigskip +% +% +% +% {\bf Mathematics Subject Classification:} +% 03B52; 03F25; 03F45; 03H13 +% +% +% +% \bigskip +% \bigskip + + + +% {\bf Please Cite this Paper as:} +% {\rm http://arxiv.org/abs/1108.6330}, +% appearing in Cornell Archives + + + + + + + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +%\begin{abstract} +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +\newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + +\def\gvs{ } + + +\def\gvs{ \baselineskip = 1.0 \normalbaselineskip \parskip 2pt} +\def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \baselineskip = 1.0 \normalbaselineskip \parskip 0pt} + +\def\gvs{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 7pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + +\noindent + + +\newpage + +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ } + + +\gvs + +\footnotesize + + +\def\gvs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + + \def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + +\gvs + + +\section{Introduction} +%%%%%%%%%% 1111111111111111} +\label{ss1} + + + +\gvs + +\parskip 4pt + +% hhhh +Two historic results +were established +by +%%% in + G\"{o}del's +millennial +%centennial +% 1931 + paper \cite{Go31}. The First Incompleteness +Theorem +showed there existed no decision procedure +for identifying the true statements of Arithmetic. +%G\"{o}del's +Its Theorem XI, +later known as the ``Second Incompleteness +Theorem'', +%, +%appearing in G\"{o}del's millennial paper \cite{Go31}. +demonstrated +that +no extension +of +% axiom systems, +% roughly corresponding to +the + Russell-Whitehead Principia Mathematicae formalism +% $\, P \,$ +can +% could + verify +its own consistency. + G\"{o}del's +two +observations +% Theorem XI +were historic +mainly because they + demonstrated, unequivocally, +that the +initial +objectives of Hilbert's Consistency +Program were too far-reaching. +Thus at best, only a +% very +sharply curtailed +form of Hilbert's goals +would be +% was +plausible. +This fact was further reinforced by a new version of the +Second Incompleteness Theorem, due to +the combined work of Pudl\'{a}k and Solovay \cite{Pu85,So94}, +enhanced by some added techniques of Nelson and Wilkie-Paris +\cite{Ne86,WP87}. + +%plausibly feasible +%from Theorem XI's perspective. + +Within these curtailed limits, we have published since 1993 +a series of articles +\cite{ww93}-\cite{ww14}, +outlining generalizations of the Second Incompleteness +Theorem and +its +sometimes-feasible +% plausible + boundary-case exceptions. +% that were formally feasible. +Pavel Pudl\'{a}k +examined +%in great detail, +% the preprints +an early preprint + of +our +article \cite{wwapal} +and suggested +\cite{Pupriv} +%that +we +consider attempting to hybridize +its formalism with some of +Ajtai's observations about + about +the Pigeon Hole effects +\cite{Aj94}. +The Section 6 of + \cite{wwapal} +did subsequently +formalize one type of response to +Pudl\'{a}k's insightful observation. +Our new results in this current paper will examine +this topic +from yet another perspective. + +The +particular + goals in the current paper will transgress +significantly + beyond our earlier research in +\cite{ww93}-\cite{ww14}. +(The latter focused on examining generalizations and boundary-case +exceptions for the Second Incompleteness Theorem +that +% were formally proven feasible). +viewed +roughly, at least, addition from a traditional perspective.) +Our new +Propositions +\ref{th-3.3} and \ref{th-6.1} +will explore the properties of an +entirely unconventional methodology for constructing +the foundations of integer arithmetic (which does not use +any of +the + traditional +function symbols +% of +for +%formalizing the +%conventional primitive operations of +successor, addition and +multiplication +as primitive + operations). + +This topic +will +have interesting +philosophical implications and +% also +lead to +our conjecture +% +% be +% interesting unto itself, +% from a +% solely +% %purely +% philosophical perspective. +% We will also conjecture +% that +% it +% will +% provide a machinery for reviving a +% % {\it VERY VERY +% +that a +{\it much-diluted} but +non-trivial fragment of Hilbert's Consistency Program +is plausible. + +%More precisely during our discussion of axiomatizations for +%integer arithmetics, + +During our discussion. +%% the symbols + $Add(x,y,z)$ and $Mult(x,y,z)$ + will +denote +two +3-way predicate symbols +specifying +that +$x+y=z$ and +$x*y=z$. +Also, let us say +%that +an +axiom +system +%basis + $\, \alpha \,$ +{\bf recognizes} +successor, + addition and multiplication +as {\bf Total Functions} if +%%%%%%%%% $\, \alpha \,$ +it +can prove +\eq{totxtefs} - \eq{totxtefm} +as theorems. + +% {\small +{\vspace*{- 0.6 em} +{ +%\small +\beq +\label{totxtefs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totxtefa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totxtefm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } +} + +\vspace*{- 1.4 em} +\noindent +Our axiomatizations for integer arithmetics +%in the current article +will differ from +their conventional counterparts +{\it by neither +possessing} an ability to prove the totality statements +in Lines +\eq{totxtefs} - \eq{totxtefm}, +{\it nor +containing} function symbols for +formalizing +the traditional addition, multiplication and successor operations. +%%% nor recognizing the validity of the identities +% +% which state that these primitive +% are ``total functions''. +% +Instead, we will rely upon an entirely +different type of primitive function symbol, called the ``$~\theta~$'' +operator, to construct the endless sequence of integers +$~3,4,5, ~...~$ from the +three initial starting constants of 0, 1 and 2. + +Its unorthodox +% This alternative +means for constructing the set of non-negative integers +%% in an unorthodox manner +will be a curious philosophical development, +unto itself, +apart from +its +% the +surprising implications +% it will have +about a +possible + conjectured +revival of a {\it much-diluted} but non-trivial +variant +%form of cousin +of Hilbert's Consistency Program. + +The reader should be forewarned +that this article will not provide a proof of its main +2-part +conjecture. +% A later section of this article +We + will +% later +explain +why +% how +our +conjecture is likely correct, +%We consider it 99 \% +%probable that Section ???'s conjecture is correct, +but its proof +is +almost certainly +% be +% much +too +long to fit into +%% +%%for it to be practical to provide +%%within the space of +%% +a +% one +single +% short +%abbreviated +paper. +% % +Our +% This +conjecture +%It +will suggest +% that + a +%% +%%(or even 50) pages +%%The goal of this article +%%will be to stimulate interest +%%in +%% +perhaps +5-10 \% +fragment of the goals of Hilbert's consistency program +can be positively achieved, +%but +in a context where +the +Incompleteness Theorem +precludes, definitively, +a more +ambitious project. + + + +% in a context where +% the +% % G\"{o}del's +% Incompleteness Theorem +% %definitively establishes that +% % clearly +% precludes +% a more ambitious project. + + + + +%The discourse in t + +This article +%has been carefully composed +%so that it +can be +read + without +% first +examining any of our previous +papers. If a reader +does wish to skim +one of our earlier +articles, +% before the current article, +we recommend +Sections 3 +\& 4 + of \cite{wwapal} +be skimmed +(in a context where the +subsequent +sections +% portions +of \cite{wwapal} +%will be +are +%are fully +unrelated to our +% chief +conjecture). + +% +% our recommendation is that +% Section 3 of \cite{wwapal} +% be skimmed +% $~---~$ +% in a context +% where the subsequent sections of \cite{wwapal} +% are unrelated to our main theorem and +% can +% be +% entirely +% omitted. + + + + +%% +%% In a context where I will be submitting this paper for publication +%% shortly before my 67-th birthday, the reader should be forewarned +%% that this article will not provide a formal proof of the main +%% conjecture that it will +%% propose. +%% We consider it 99 \% +%% probable that Section ???'s conjecture is correct, +%% but its proof +%% looks too tedious and long for it to be practical to provide +%% within the scope of this 25-page paper. +%% The goal of this article +%% will be to stimulate the interest +%% of a new generation of researchers, +%% who consider our new formalism and its relationship to +%% Hilbert's Year-1900 Second Open Question to be of interest. +%% + +\section{Returning to the 1931-1939 Period} +\label{ss2} + G\"{o}del's +Second Incompleteness Theorem +was published in two +quite different + forms during the +1931-1939 period. +Its initial 1931 variant, formalized by Theorem XI +in G\"{o}del's millineal paper \cite{Go31}, +% +% +% Its Theorem XI, +% later known as the ``Second Incompleteness +% Theorem'', +% %, +% %appearing in G\"{o}del's millennial paper \cite{Go31}. +% +demonstrated +that +no extension +of +% axiom systems, +% roughly corresponding to +the + Russell-Whitehead Principia Mathematicae formalism +% $\, P \,$ +could +% could + verify +its own consistency. +The widely quoted more general +result, that +every consistent r.e. extension + of Peano Arithmetic must +be unable to prove a theorem affirming its +own consistency, +was +first +published +%% +%% (see \footnote{ Boolos states in \cite{Bool} +%% that it has been open to scholarly debate +%% whether or not the 1939 +%% Hilbert-Bernays generalization of the Second Incompleteness Theorem +%% is or (is not) a straightforward generalization of +%% G\"{o}del's initial result} ) +%% +in the 1939 edition of the +the Hilbert-Bernays +textbook \cite{HB39}. It has been considered +to be the definitive demonstration of the broad reach of +the Second Incompleteness Effect. +It also established, beyond any reasonable doubt, that any type +of formalism possessing a conventional knowledge of its own consistency, +must rely upon a +foundational structure + fundamentally different from Peano Arithmetic. +(This is because the +Hilbert-Bernays +textbook formalized the forerunner of +what has now been known as the +Hilbert-Bernays Derivability Conditions \cite{HB39,HP91,Lo55,Mend}, +as a mechanism for +% foreseeing +envisioning +the +astonishing +broad generality of the +Second Incompleteness Effect.) + + +It is, thus, fascinating that Hilbert, +as the co-author of +an important +%very +% historic +generalization of the Second Incompleteness Theorem, +never withdrew the +% chose to never fully withdraw his +1926 justification + \cite{Hil26} +for his consistency program: +\begin{quote} +$*~$~ +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding itself.''} +\end{quote} +Indeed, +%Instead, +Hilbert +always insisted that some +special new formalism would at +least partially vindicate the +prior +%initial + goals of his +consistency program. +He thus arranged to +have its often-quoted +motto +({\it ``Wir m\"{u}ssen wissen---Wir werden wissen''} ) +%of his +%nevertheless, +engraved on his tombstone. + + +%Moreover, it + +It is +also +known +\cite{Da97,Go5,Yo5} +that G\"{o}del +was +doubtful about the generality of the Second Incompleteness +Theorem for at least two years after its publication. +He thus inserted the following +cautious caveat into +his famous +1931 +millennial +paper \cite{Go31}: +% whose closing section +%%% +%%% One of the closing paragraphs of +%%% \cite{Go31} +%%% thus +%%% included +% +% +%%% contained the following cautious disclaimer: +%caveat: +\newpage +\begin{quote} +\it +%\baselineskip = 1.0 \normalbaselineskip +$~**~~$ +``It must be expressly noted that +Theorem XI +%'s incompleteness result +(e.g. the Second Incompleteness Theorem) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and {\it there might +conceivably be finite proofs} which cannot +be stated in P or in ... '' +\end{quote} + + +The +% above 1931 +statement $**$ has +had +%been subject to +numerous +%many +different +interpretations +\footnote{ +Some +scholars +have interpreted +$\,**\,$ +as +%as, possibly,' +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialetica interpretation.}. +All + G\"{o}del's +biographers +\cite{Da97,Go5,Yo5} +%%%have +noted +his +% that G\"{o}del's +initial intention +was +to +establish +%achieve +Hilbert's proposed objectives, before +he proved +%proving +% G\"{o}del proved +a result +% +% however, +% %%%%%his +% G\"{o}del +% did originally +% seek +% % goal was +% to +% establish +% %achieve +% Hilbert's proposed objectives before +% proving +% % G\"{o}del proved +% a result +% +leading +%that led +in the opposite direction. +Yourgrau \cite{Yo5} +records +%furthermore, + how +von Neumann +surprisingly +%did +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive +%%% achievement of a' + termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +It is known + G\"{o}del +began to +more fully +endorse +the Second Incompleteness +Theorem +during a 1933 +%% Vienna +lecture \cite{Go33}, +and he +% told biographers he +completely embraced it +after learning about Turing's work +\cite{Tur36}. + + +Our research +in \cite{ww93}-\cite{ww14} +%has been +is +related to issues +%analogous + similar +to those +%that were +raised by Hilbert and +G\"{o}del +in + statements $*$ and $**$. +This is because it is counter-intuitive and awkward to +%presume that +explain how +human beings can maintain the +psychological drive and +needed energy-desire to cogitate, without +being stimulated by an instinctive faith in their own +consistency (under a definition of +% formal consistency +such +% this concept +that is suitably +gentle and +% delicate +soft + to +be consistent with the +Incompleteness Theorem's requirements). + +% preclude a violation of the +% restrictions imposed by the Incompleteness Theorem). + +Accordingly, our research in +\cite{ww93}-\cite{ww14} +has explored both generalizations and +boundary-case exceptions of the Incompleteness Effect, so as +to determine what type of boundary-case evasions are permitted. +Our prior research in \cite{ww93}-\cite{ww14} +had used mostly cut-free forms of deduction to +evade the +restrictions imposed by the +Second Incompleteness Effect. The current article will instead +focus on more pristine Hilbert-Frege methods of deduction. +They are likely to support an evasion of the Second Incompleteness +Effect when our axiom systems replace the traditional +growth properties of the addition, multiplication and successor +function symbols with our new $~\theta~$ primitive. + +The motivation for this replacement will be +explained during the next section of this article. +It is needed +essentially +because +a + version of the Second Incompleteness Theorem, +due to the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, +%will show +demonstrates +that +if an axiom system $~\alpha~$ +proves any +of \eq{totxtefs} - \eq{totxtefm}'s totality statements +then it is incapable of confirming its own consistency +under a Hilbert-style deductive method. + + + + + +\smallskip + +Our results will suggest it is possible to obtain a +{\it part-way 5-10 \% +positive} interpretation +for what +Hilbert and G\"{o}del +were +seeking +% a Consistency Program +to establish +%% seeking to accomplish +% contemplating +in their +statements +$*$ and $**$, within a context where +it is known that the +Second Incompleteness Effect precludes a full achievement of +%these +Hilbert's +objectives +from ever transpiring. +The last five minutes of +a recent 60-minute YouTube +presentation + by Harvey Friedman +\cite{Fr14}, +entitled the +{\it ``Blessing and Curse of Kurt G\"{o}del''}, +suggested that it is +%the themes of Hilbert and G\"{o}del's +%remarks $*$ and $**$ by indicating that +%it is +interesting to explore futuristic partial +boundary-like evasions of the Second Incompleteness Theorem, +despite the stunning strength of +G\"{o}del's result. +It is within this context where our proposed use of a new +$~\theta~$ primitive +symbol to replace the growth properties +of the traditional addition, multiplication and successor function +symbols may be of potential interest. + +The development of our $~\theta~$ primitive +was partially influenced by a private email +communication +we had received +from +Pavel Pudl\'{a}k \cite{Pupriv}, +as Sections 3-4 shall explain. +We also emphasize that the conventional interpretation of +the Second Incompleteness Theorem, as precluding +Hilbert's Consistency Program from ever achieving its initially +specified objectives, is certainly correct. +Our only caveat is that the latter should not lead one +to +ignoring the role that a +human's instinctive faith in his/her's internal +consistency +%crucially stimulates and motivates +plays in stimulating and motivating +human cognition. +% humans to cogitate. +% +% crucially +% gain the +% motivation for stimulating cogitation. +It is +from this +special +perspective where our prior research and +new 2-part conjecture +will +% does +suggest that +an approximate +%at least a +5-10 \% +fragment +% fraction +of what Hilbert and G\"{o}del +%suggested in +had +sought +in $*$ and $**$ +%could +should be + plausibly +%is +%% be formally + feasible. + + + +\gvs + +\section{Motivation for Research and Background Notation} +% 222222} +\label{ss3} + + +%%! +%%! This article will be written in a style so that its +%%! overall theme (if not full details) +%%! should become +%%! {\it quickly} comprehensible to a reader who has +%%! examined +%%! only +%%! one of the +%%! % introductory +%%! logic textbooks by say Enderton, +%%! Fitting, H\'{a}jek-Pudl\'{a}k, +%%! Mendelson +%%! or Papadimitriou \cite{End,Fi96,HP91,Mend,Papa}. +%%! %% +%%! %% We will rely mostly upon the +%%! %% precise +%%! %% deductive calculi notation employed +%%! %% in Section 2.4 of Enderton's textbook, +%%! %% but any of +%%! %% the +%%! %% similar +%%! %% Hilbert-style deductive calculi of +%%! %% H\'{a}jek-Pudl\'{a}k, +%%! %% Mendelson +%%! %% or Papadimitriou \cite{HP91,Mend,Papa}. +%%! %% will also be suitable for achieving our results. +%%! +%%! %% +%%! %% +%%! %% ( Papadimitriyou's textbook +%%! %% generously states it employs a deductive notation +%%! %% that +%%! %% has +%%! %% stemmed from its predecessor in +%%! %% Enderton's textbook.) +%%! +%%! + + + +%% In order to make our +%% results +%% %research +%% apply to the +%% formalism + +It is helpful to employ a flexible vocabulary so +% that our +our +results +will apply +%research +%to the +%formalisms +to any of the +%% +%% accessible to +%% some +%% readers who are acquainted with only one of the +%% +textbook +formalisms of +% settings outlined by +% +say +Enderton, +Fitting, H\'{a}jek-Pudl\'{a}k, +or Mendelson +\cite{End,Fit,HP91,Mend}. +% +% , +% %% or +% %% Papadimitriou +% %% \cite{End,Fit,HP91,Mend,Papa}, +% %% +% %% +% %the widest +% % possible +% %audience, +% it is +% helpful +% % useful to +% use +% %employ +% a +% % very +% flexible +% vocabulary. +% %% +% %%that +% %%allows a reader to +% %%%quickly +% %%%translate results +% %%traverse +% %%from +% %%one textbook to another. +% % Therefore, let us define a +Let us +% thereby +call an +ordered pair $(\alpha,d)$ a + {\bf ``Generalized Arithmetic''} +% therefore +iff its +% first and second +two components +%% +%% Each of the +%% textbooks \cite{End,Fi96,Mend,Papa,HP96} have +%% employed +%% substantially +%% different variants of Basis and +%% Deductive-Apparatus structures. +%% +are +% described +formalized +% defined +as below: +%% +%% Their +%% definitions in +%% Items (1) and (2) +%% %simple +%% %%%definitions of these two notions +%% %given below, +%% allow one to easily translate +%% %theorems +%% formalisms +%% % methodologies +%% from +%% one textbook +%% % source +%% to another: +%% +%% %\njp +%% % \newpage +%% \parskip 2pt +\bee +\item +The {\bf ``Axiom Basis''} $~\alpha~$ +for an arbitrary arithmetic +shall be defined as +the set of +{\it proper axioms} employed by the +formalism $( \alpha , d )$. +\item +An arithmetic's {\bf ``Deductive Apparatus''} $~d~$ +is defined as +the +{\it combination} of its formal rules for inference +and +%its +the + built-in + logical axioms ``$~L_d~$'' +% (that are +% implicitly +employed by these rules. +\ene + +%%%\item +%%%The term {\bf ``Deductive Apparatus''} $~d~$ will +%%%refer to the +%%%{\it combination} of the rules of inference +%%%used by an arithmetic and its +%%%the logical axioms ``$~L_d~$'' that +%%%render meaning to +%%%%are an automatic part of +%%%$~d\,$'s machinery. + + +\begin{exx} +\label{ex-2.1} +%\label{ex-basis} +\rm +This notation +allows one to + conveniently separate the logical axioms +$~L_d~,~$ associated +with $( \alpha , d )~$, from + $\, \alpha \,$'s + ``basis axioms''. +%basis axioms +It also allows one to isolate +and compare +% , conveniently, +various +apparatus techniques, +%technique, +% employed in the exact formalisms +including the + $~d_E~$, + $~d_M~$, + $~d_H~$, +and $~d_F~$ +methods +%that we will now define: +defined below: +%% +%% Three +%% examples of this are illustrated below, +%% in a context where +%% are the deductive apparatus machineries defined +%% in Enderton's, Mendelson's and Fitting's textbooks +%% \cite{End,Fi96,Mend}. +%% +\bed +\item[ i. ] +The $~d_E~$ apparatus, +formalized in +\textsection + 2.4 of Enderton's textbook, +% will +uses only modus ponens +as a rule of inference. +The latter will be accompanied +by +a +4-part +system of + logical axioms, +called $~L_{d_E}~$, $\,$ to endow + $~d_E~$ +with an +ability to support +% apparatus +% agility so that it supports +%can satisfy +%the analog of +G\"{o}del's Completeness Theorem. +%% ' +%% (similar to other' +%% % full-scale ' +%% deductive methodologies).' +%% +%%%% +%%%% (Papadimitriyou's +%%%% % in-depth exploration +%%%% textbook \cite{Papa} about +%%%% % examination of +%%%% the Logic-Computer interface +%%%% relies +%%%% explicitly +%%%% upon +%%%% % uses +%%%% Enderton's +%%%% % underlying +%%%% apparatus mechanism.) +%%%% +%% %uses +%% relies upon +%% Enderton's +%% approach $d_E$.) + +%% %relies +%% does rely +%% upon +%% Enderton's apparatus +\item[ ii. ] +The $~d_M~$ +apparatus in +\textsection 2.3 +of Mendelson's textbook +and the $d_H$ + apparatus +in \textsection 0.10 +of the H\'{a}jek-Pudl\'{a}k's + textbook +employ a more compressed set of logical axioms +than $\, d_E \,$, +but +they use +two rules of inference +(formalizing +separately + modus ponens and generalization). +%% plus a smaller set of logical axioms, which Mendelson +%% has called A1-A5. +%% Also, the $d_H$ +%% apparatus +%% on pages ???? +%% of the +%% H\'{a}jek-Pudl\'{a}k textbook +%% uses a slightly different variation of a generalization. +%% (In the end, +In the end, +% both + $~d_M~$ +and $~d_H~$ +prove the same set of theorems +as $~d_E~$ with +only minor and unimportant changes in +proof length. +\item[ iii. ] +The +``semantic tableaux'' + $~d_F~$ +apparatus in +Fitting's +and Smullyan's +textbooks +\cite{Fit,Smul} +was + the main focus of our +investigations in \cite{ww93,ww1,wwlogos,ww5,ww6,ww14}. +It will be rarely used +in the current article, +however. +Unlike + $~d_E~$, $~d_M~$ and $~d_H~$, it +employs no logical axioms. +It instead + uses a more complicated rule of inference. +This tableaux apparatus +% and also Resolution, have been + has +% been found to have many +a wide array of +applications +for automated deduction, +although it is +less efficient than + $ d_E $, $ d_M $ and $ d_H $ +in +% under +% extremal +worst-case +environments. +% settings. +%circumstances. +\ennd +\end{exx} + + +\begin{dff} +\label{def-2.2} +\rm +Each of the +% deductive +methods of + $ d_E $, $ d_M $ and $ d_H $ +have the property that if a theorem $\, \Psi \,$ +has a proof +with length $~L~$ + from an arbitrary +axiom basis $~\alpha~$ +under one of these deductive systems, +then it will have a proof from these other formalisms +with lengths bounded by Polynomial$(L)$. +The term +{\bf ``Hilbert-style''} deductive method will, +thus, refer to any deductive +% apparatus will refer to any other +apparatus $~d~$ that +employs +% similarity has its +proof lengths +% being +equivalent to within a polynomial magnitude +to +%of +the comparable proof lengths from $d_E$, $d_M$ and $d_H$ +and which +also +assures +that the proofs of any +two theorems $~\Phi~$ +and $~\Psi~$ +(under $d$ from any +axiom basis $~\alpha~$) +will +always +have +% by more than a constant factor +the sum of the lengths of the proofs +of $~\Phi \rightarrow \Psi ~$ and $~\Phi~$ +% under $~d~$ from $\alpha$ always +formally +bound the length of +$~\Psi\,$'s proof. +\end{dff} + + +\begin{exx} +\label{ex-2.3} +%\label{ex-basis} +\rm +Some added notation is + needed to +explain why +% help outline +% an important distinction between +a Hilbert style +deductive apparatus, such as $\,d_E\,$, $\,d_H\,$ + or $\,d_M\,$, should be distinguished from + $d_F$'s +``tableaux'' apparatus. +Let +% the symbols + $Add(x,y,z)$ and $Mult(x,y,z)$ +once again +% will +denote +two +3-way predicate symbols +specifying +that +$x+y=z$ and +$x*y=z$. +Also, let us recall +that +an +axiom basis + ``$\, \alpha \,$'' +is said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} if +%%%%%%%%% $\, \alpha \,$ +it +includes +\eq{totdefxs} - \eq{totdefxm} +as theorems. + +% {\small +{\vspace*{- 0.6 em} +{ +%\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } +} + +\vspace*{- 1.4 em} + +\noindent +%Then an +In this context, an +``axiom basis'' +$\alpha$ +will be called +{\bf Type-M} if it contains +\eq{totdefxs}-\eq{totdefxm} +% \ref{totdefxs}-\ref{totdefxm} +as theorems, +{\bf Type-A} if it contains +%only +\eq{totdefxs} and \eq{totdefxa} as theorems, +and {\bf Type-S} if it contains +only \eq{totdefxs} as a + theorem. +%Moreover, +Also, +$\alpha$ +%will be +is +called +{\bf Type-NS} if it can prove +none of these theorems. +%In this context, +%The +%Items (a) and (b) illustrate +%%%Below are illustrated several +%%%implications of this notation: +The implications of this notation +are formalized by Items a and b: + +%% +%% +%% , below, +%% %will +%% illustrate how +%% a +%% %% +%% %% the +%% %% prior +%% %% literature has +%% %% +%% %% +%% ``Hilbert-style'' +%% deductive apparatus, such as $\,d_E\,$ +%% or $\,d_M\,$, supports very different generalizations +%% of the Second Incompleteness Theorem +%% than $\,d_F\,$'s +%% ``tableaux-style'' apparatus: +%% +%% the prior literature most germane +%% to our current article is summarized as follows: +%% +%% +%% The relationship of these constructs to +%% self-justification +%% is explained by +%% items (a) and (b): +\bed +\item[ a. ] +The +%% +%% above +%% evasions of the Second Incompleteness +%% Theorem are known to be near-maximal in a mathematical sense. +%% This is because +%% the +%% +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, +as formalized by statement $\, ++ \,$, +%has implied +implies +no +natural +Type-S system can recognize its +own consistency +under +any of $\, d_E \,$'s, $\, d_H \,$'s +or + $\, d_M \,$'s + Hilbert-style +versions +of deduction: +\begin{quote} +{\bf ++ } +%\footnotesize + \baselineskip = 1.05 \normalbaselineskip +{\it +(Solovay's +modification +%Generalization +\cite{So94} +%1994 Generalization \cite{So94} +%of a 1985 theorem +of Pudl\'{a}k \cite{Pu85}'s formalism +with +%using +%some of +Nelson and Wilkie-Paris \cite{Ne86,WP87}'s +methods)} : +Let $ \, \alpha \, $ denote +%%! any consistent +% a logic +an axiom +basis +% axiom system +%basis system +supporting +% which contains +\eq{totdefxs}'s +Type-S statement +and +assuring +%which assures +%that +the successor operation +%always +does satisfy +both +% the axioms of + $ \, x' \neq 0 $ and +$ x' = y' \Leftrightarrow x=y $. +$~$Then $~\alpha~$ +cannot verify is +%will be unable to recognize its +%own +consistency +under any Hilbert-style +%deductive +apparatus $d$, +%whenever +if it + treats addition and multiplication +as 3-way relations, +satisfying +the usual % identity, +associative, commutative + distributive +and identity axioms. +% -axiom +% properties. +\end{quote} +Essentially, Solovay \cite{So94} +privately communicated +to us +in 1994 +%to us +an analog of $++$'s result. +%but +Many authors +have noted Solovay + has +been +%often +reluctant to publish +% several of +his +nice +privately communicated +results +on many occasions +%in several contexts +\cite{BI95,HP91,Ne86,PD83,Pu85,WP87}. +Thus, +%polished +approximate analogs of +%statement + $++$ + were explored +subsequently + by Buss-Ignjatovic, +H\'{a}jek +and +\v{S}vejdar in \cite{BI95,Ha7,Sv7}, +as well as in Appendix A of +our paper +\cite{ww1}. +Also, +Pudl\'{a}k initial 1985 article \cite{Pu85} +% implicitly +captured +the majority +%most +%%% much +of $++$'s +main +% underlying +formalism, +and +Friedman did some +related work +% in +\cite{Fr79a}. + +\item[ b. ] +Part of what makes +the Pudl\'{a}k-Solovay discovery in + $++$ interesting is that +\cite{ww1,ww5,wwapal} +%Willard +developed two +% separate +methods for +basis systems +%%% $\alpha$ +to confirm their own consistency, whose +natural hybridizations is precluded by $++$. These results involve +either a Type-NS +% basis +system +\cite{ww1,wwapal} + verifying its own consistency +under +any of the + $d_E$ or $d_H$ + or $d_M$'s +Hilbert-style methods, +or a Type-A +%basis +system \cite{ww93,ww1,ww5,ww6,ww14} +verifying + its +% own +self-consistency +under $d_F$'s tableaux +%deductive +apparatus. +Also, Willard \cite{ww2,ww7} observed how one could +refine $++$ with Adamowicz-Zbierski's +methodology \cite{AZ1} to show + Type-M systems +cannot recognize their semantic tableaux consistency. +\ennd +\end{exx} + +The roles of +% Observations +Items (a) and (b) +in our research +%from the current example, +will become more evident +as this article progresses. +Essentially, our +prior research +% , +% best summarized in \cite{ww14}, +% has +had focused mostly on Type-A arithmetics +that could verify their consistency under either semantic +tableaux deduction or some near-cousin of this concept +(as was explained in \cite{ww14}'s short 16-page summary +of \cite{ww93}-\cite{ww9}'s results). +The +new +$~\theta~$ operator, defined in the next section, will +raise the question about whether a +surprisingly powerful class of new Type-NS systems may +satisfy an analogous +property in the context of +Definition \ref{def-2.2}'s more pristine +Hilbert-style methodology for deduction. + + +% have +% a similar property.(The article \cite{ww14} offers a nice 16-page summary +% of our prior results +% \cite{ww93}-\cite{ww9} +% about Type-A arithmetics, but +% none of these results will +% be +% needed +% % to be examined +% during our current article's exploration of +% the properties of the new % +% $~\theta~$ operator.) + +% It will be unnecessary for a reader to examine any of our + + +%% % year-2014 +%% Wollic-2014 paper \cite{ww14} +%% summarized and extended our +%% results about +%% semantic tableaux consistency. +%% % and this +%% The current +%% new +%% year-2015 +%% paper +%% will, now, +%% explore whether +%% systems can +%% also corroborate +%% their Hilbert-styled consistency +%% under certain well-defined circumstances. + +%% (and seek to explore the restrictions $++$ imposes upon +%% Hilbert-styled deduction). + +% +% (The latter topic +% % is +% %very +% %entirely +% %different +% differs +% from the former +% because +% constraint $++$ +% applies only +% to its +% particular +% domain.) + +%in the second context.) + + +%% The constraints imposed by $++$ +%% are challenging +%% because Type-NS arithmetics + +This +topic +% subject +is challenging because +essentially all +Type-S arithmetics +are forbidden by $++$ from +verifying the consistency +of their own Hilbert-styled deductions +(and +conventional forms of +Type-NS formalisms are +typically +% usually +quite weak). +%% +%% (Thus, our efforts +%% to design +%% self-verifying systems +%% must focus on +%% Type-NS arithmetics). +%% +Our new Propositions \ref{th-3.3} and \ref{th-6.1} +will suggest a +plausible partial +solution to this +problem by +% daunting challenge by +illustrating how +an {\it unusual class} of +Type-NS arithmetics will be able to construct the +full set of integers $~0,1,2,3,...~$ by finite means +{\it without using} +any of the successor, addition or multiplication +function symbols. +As a result, we will suggest +a +% a {\it part-way} +% that an interesting +non-trivial +(although diluted) +fragment +of what Hilbert +and G\"{o}del +% sought +% referred to +sought +in +statements +$*$ and $**$ +% will +% be formally achieved +% become tempting +is likely +% be +viable +under Definition \ref{def-2.4}'s formalism. + + + +% +% This +% topic +% % subject +% is challenging because +% $++$'s +% Type-NS arithmetics +% % obviously +% have sharply circumscribed powers +% (demonstrating the +% broad reach +% % ubiquitous nature +% of +% %the Second Incompleteness Theorem's reach). +% G\"{o}del's +% second theorem). +% %% +% %% The current article will +% %% show, however, that +% %% some Type-NS arithmetics are +% %% substantially +% %% stronger than previously +% %% anticipated +% %% (and they will have useful applications +% %% in +% %% computer science settings). +% %% +% %% Thus in a context where +% %% the power of both G\"{o}del's initial +% %% Second Incompleteness Theorem and $++$'s strengthening of it +% %% are stunning +% %% and +% %% have pervasive implications, +% %% we will show that a +% %% {\it partial-and-much-less-than-full} +% %% fragment +% %% of what Hilbert +% %% desired +% %% in statements $*$ and $**$ an be +% %% positively achieved. +% %% +% The current article will +% %show, however, +% suggest, +% however, +% % that +% some Type-NS arithmetics are +% % , however, +% % significantly +% %% substantially +% more far-reaching +% than +% previously +% anticipated. Thus, a +% % well-defined +% {\it +% partial but non-trivial} fragment of what Hilbert +% and G\"{o}del +% % sought +% % referred to +% anticipated +% in +% statements +% $*$ and $**$ will +% % be formally achieved +% % become tempting +% look +% % be +% viable +% under Definition \ref{def-2.4}'s formalism. + + +\begin{deff} +\label{def-2.4} +\rm +Let +$~\alpha~$ again +denote an axiom basis +and $~d~$ +designate + a +deduction apparatus. +Then the ordered pair + $~( \alpha , d )$ +will +be called {\bf Self Justifying} when: +\begin{description} +% \xxitch +% \small + \item[ i ] one of $ \, \alpha \,$'s theorems +(or at least one of its axioms) +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +\end{deff} + + +\begin{exx} +\label{ex-2.5} +\rm +Using +Definition \ref{def-2.4}'s + notation, our research +in +\cite{ww93,ww1,ww5,wwapal,ww9,ww14} +developed +%\cite{ww93}-\cite{ww14} +%has consisted of +% developing +ordered pairs $~( \alpha , d )$ +that +were +%are +``Self Justifying''. +It +% has +also explored +how the Second Incompleteness Theorem formalizes +limits beyond which such formalisms cannot transgress. +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +% second +%%% axiom +system $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +condition. +%of +% this definition. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +%%% +%%% the following +%%% %%% added +%%% further +%%% sentence, +%%% called +%%% %%% that we call +%%% {\bf SelfRef$(\alpha,d)~$}: +\begin{quote} +%\xxitch +$\oplus~~~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of +the + axiom system $\, \alpha \, $ +with {\it this} +sentence ``SelfRef$(\alpha,d) \,$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +discussed +how +to +encode +approximate + analogs of this +{\bf $\,$``SelfRef$(\alpha,d)$''$\,$} +statement. +%%% SelfRef$(\alpha,d)$'s +%%% self-referential statement. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii of self-justification's +definition. +This is because if the +% ordered + pair $(\alpha,d)$ is too strong +then a classic G\"{o}del-style diagonalization argument can +be applied to the axiom system +$\alpha^d~~=~~ \alpha \, + \, $ SelfRef$(\alpha,d)$, +where the added presence of the statement +SelfRef$(\alpha,d)$ +will cause this extended version of +$\, \alpha\,$, ironically, + to + become automatically inconsistent. +Thus, the machinery of the sentence +``SelfRef$(\alpha,d)$'' is relatively easy to +encode, +%make well-defined +via an application of the Fixed Point Theorem, +but it +is +ironically +%%%%%{\it most often +{\it +typically +%usually +useless! } +\end{exx} + +%\newpage + + +Unlike our earlier work, which focused + mostly around a +semantic +tableaux apparatus for deduction, +the current paper +will +explore +%paper will explore +\dfx{def-2.2}'s +more pristine Hilbert-style methodologies. +%% +%% analogous to +%% Example +%% \ref{ex-2.1}'s +%% textbook +%% methods. +%% +% of +% $d_E$, $d_M$ +% and $d_H$. +%%! +%%! in +%%! the textbooks by +%%! Enderton, H\'{a}jek-Pudl\'{a}k, +%%! Mendelson and Papadamiriyou \cite{End,HP91,Mend,Papa}. +There are, of course, many types of generalizations +of the Second Incompleteness Theorem known to +arise in Hilbert-like settings +\cite{BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Lo55,Kr87,Kr95,Pa71,Pa72,Pu85,Pu96,So94,Sv7,Vi5,WP87,ww1,wwapal}. +Each such +generalization +formalizes +a paradigm where +self-justification is infeasible +under a Hilbert-style apparatus. + +\smallskip + +Our +main +prior research about +%%! +%%! main work about arithmetics displaying knowledge +%%! about their +%%! +Hilbert consistency appeared in \cite{wwapal}. +Its ISCE$(\beta)$ +formalism could recognize its own +Hilbert consistency and +%%could +prove analogs of any +r.e. +extension $~\beta$ of +Peano Arithmetic's $\Pi_1$ theorems. +It unfortunately required +the use of an infinite number of constant symbols, with + ISCE$(\beta)$ +using one built-in constant +symbol +$~C_i~$, +for each power of 2. An alternative in \cite{wwapal}, +called ISINF$(\beta)$, required use of only three constant symbols, +but its proof lengths were impractically long. + + +%%! required +%%! % in excess of +%%! an impractical +%%! $O(N)$ length proof to construct an integer $N$. + +\smallskip + +Prior to \cite{wwapal}'s publication +Pavel Pudl\'{a}k +\cite{Pupriv} +examined this article and asked +us +the crucial question about +whether +we could improve +upon ISINF's properties + by using Ajtai's observations +\cite{Aj94} + about +the Pigeon Hole principle. +%% +%% Sam Buss \cite{Bupriv} also asked us +%% a +%% %similar +%% related +%% question +%% (during a more +%% informal +%% %abbreviated +%% conversation). +%% %(in a more informal manner). +%% +Our prior +partial +answer to Pudl\'{a}k's +question +was offered +%issue +%appeared +%in Sections 6 and 7 of \cite{wwapal}. +in Sections 6 of \cite{wwapal}. +A very different type of reply will be offered +% +% We will offer +% % an alternate much +% a +% % much +% more sophisticated +% and different +% type of reply +% % analysis +% % formalism +% +in +the current +paper. +%article. + + +%%! an abbreviated version of a similar +%%! question after we verbally summarized to him \cite{wwapal}'s +%%! planned results. + +% in 1997. + + +\begin{deff} +\label{def-2.6} +\rm +Throughout our discussion, a +% A +primitive $~F~$ will be called a +{\bf Q-Function} +iff is is +sufficiently ambiguous +for there to exist an UNCOUNTABLY infinite number of +different +{\it +plausible sequences} of +ordered pairs in expression \eq{wow} where +$~F(i)=a_i~$ is allowed as a +% logically +permissible +%plausible +%formalization +representation of $F$ +under some fixed axiom system $~\gamma~$. +\begin{equation} +\label{wow} + (0,a_0) + ~,~ (1,a_1) ~,~ (2,a_2) ~,~ (3,a_3) ~,~ (4,a_4)~ ... +\end{equation} +\end{deff} + +\gvs + +%It turns out most + +Most +Q-Function symbols are +unsuitable for +analyzing +%producing a positive resolution to +Hilbert's Second Open Question or most +issues in +% other prominent +% % mathematical +% questions within +mathematics. + This is because the +presence of an + uncountably + infinite + number of +different +plausible sequences, +formalized by Line +\eq{wow} for solving +$~F(i)=a_i~,~$ is +typically more of a burden than a benefit. +An exception to this general rule +of thumb + will be +provided by + the next +section's $~\theta~$ operator. +It will be germane to + $\, ++ \,$'s generalization of the Second Incompleteness +and suggest a mechanism whereby an efficient form of +``Type-NS''self-justifying +arithmetic +can recognize its own Hilbert consistency, +without +viewing +% recognizing +%%%%%% any of addition, multiplication and +even +successor as +a total function. + + +%% +%% It will enable us to develop ground terms for formulating +%% any integer $~N~$ using +%% $O\{~$Log$(N)~\}~$ +%% logical symbols, +%% in a context where +%% {\it none of the} addition, multiplication or +%% successor function symbols are employed +%% by $~\theta \,$'s analog of an +%% $O\{~$Log$(N)~\}~$ +%% lengthed +%% binary-like +%% encoding +%% for integers. +%% % of an integer as a binary number. +%% This alternate +%% $O\{~$Log$(N)~\}~$ +%% format +%% for encoding an integer $~N~$ is +%% potneitlally useful +%% %fascinating +%% because +%% Item $\, ++ \,$'s generalization of the Second Incompleteness +%% Theorem, due to the +%% combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +%% \cite{Ne86,Pu85,So94,WP87}, +%% does not preclude evasions of its invariant when a +%% ``Type-NS'' +%% axiom system ceases to recognize +%% addition, multiplication and +%% successor as total functions. + + + +% Most +% Q-Function symbols are +% unsuitable for +% analyzing +% %producing a positive resolution to +% Hilbert's Second Open Question. +% A special class of Q-Functions +% % , however, +% will +% walk through +% Cantor's +% % the +% world of the Uncountably Infinite +% %% in a more +% in an +% enticing manner, +% however. +% %% however. +% %It +% They +% will suggest a +% %%% much +% {\it diluted but non-trivial} +% variant +% of the aspirations +% which +% %that +% Hilbert and G\"{o}del +% expressed +% in +% $*$ and $**$ +% are +% %applicable to +% feasible under +% % plausible in the context of +% Hilbert Deduction. +% (This +% % Q-function a +% analysis will be +% %%%%%%%%%%%%%% quite +% % entirely +% different +% from +% \cite{ww14}'s +% examination of +% %formalisms +% %the formalisms appearing in our Wollic-2014 paper +% %%% because +% %it will replace +% semantic tableaux deduction +% because it will +% apply +% uniquely +% to +% Definition \ref{def-2.2}'s +% ``Hilbert-styled'' deduction methods.) + + +%%% is replaced by the more efficient +%%% %with the more pristine +%%% Hilbert-style deductive methodology.) + +%can be achieved. + + +%%! This will suggest +%%! a {\it limited} +%%! and very-much {\it down-sized} version of the formalism that +%%! Hilbert +%%! advocated +%%! is +%%! likely +%%! %probably +%%! feasible +%%! and +%%! germane to +%%! the +%%! future +%%! % computational +%%! needs of automated +%%! theorem provers. +%%! Our +%%! exploration +%%! will also provide a +%%! % quite +%%! new interpretation of the +%%! meaning of the statements $*$, $**$ and +%%! $***$. + +% by Hilbert and G\"{o}del. + +\vspace*{- 0.6 em} + +% \section{Revisiting a World which Hilbert called +% {\it ``Cantor's Paradise''}} + +\section{Main Formalism} +\label{ss4} +\label{seee3} + +%333333333333333333333333333 +\vspace*{- 0.4 em} + +% OLD Title was {\it Notation and Basic Concepts} + +Throughout this +paper, +%article, +a function + $\, H \, $ +will be called + {\bf Non-Growth} +iff +$ H(a_1,a_2,...a_j) +\leq Maximum(a_1,a_2,...a_j)$ +for all $a_1,a_2,...a_j$. Six examples of + non-growth functions are: +\bee +\parskip 0pt +\item +{\it Integer Subtraction} +where ``$~x-y~$'' is defined to equal zero +in {the special case} where + $~x \leq y,$ +\item +{\it Integer +Division} +where ``$~x \div y~$'' equals +$~x~$ when $~y=0~$ and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise, +\item +$Root(x,y)~$ which equals $~ \lfloor ~x^{1/y}~ \rfloor$ when $~y\geq 1~$ +%% +%% and +%% it equals $~x~$ when $~y=0.$ +%% +(and zero otherwise), +\item +$Maximum(x,y),~~$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +and +\item +$Count(x,j)~~=~~$the number of ``1'' bits +among $~x$'s rightmost $~j~$ bits. +\ene +%% +%% +%% \bee +%% \baselineskip = 0.8 \normalbaselineskip +%% +%% \item +%% {\it Integer Subtraction} +%% where ``$~x-y~$'' is defined to equal zero +%% in {\it the special case} where +%% $~x \leq y,$ +%% \item +%% {\it Integer +%% Division} +%% where ``$~x \div y~$'' equals +%% $~x~$ when $~y=0,~$ and +%% it equals $~\lfloor ~x/y ~\rfloor~$ otherwise, +%% \item +%% $Root(x,y)~$ which equals $~ \ulcorner ~x^{1/y}~ \urcorner$ when $~y\geq 1,~$ +%% and +%% it equals $~x~$ when $~y=0.$ +%% \item +%% $Maximum(x,y),~~$ +%% \item +%% $ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ when $~x \geq 2,~$ +%% and zero otherwise. +%% \item +%% $Count(x,j)~~=~~$the number of ``1'' bits +%% among $~x$'s rightmost $~j~$ bits. +%% \end{enumerate} +%% +These operations were called +either the +{\bf ``Grounding''} +or {\bf ``Ground-Level''} + functions +in our articles \cite{ww1,wwlogos,ww5,ww14}. +We will +use the latter nomenclature in the current article + because the notion of a ``Ground-Level'' +function should not be confused with the very different notion +of a ``Grounded Term'' employed by Definition +\ref{def-3.4}. + +% TWO DEFS or ONE ???????? + + + +Our +starting language $L^G$ shall also contain +the +two atomic +symbols +%% relations +of ``$~=~$'' and ``$~\leq~$'' and three +built in constants symbols, $~C_0~$, $~C_1~$ and $~C_2~$, +for representing +the values of 0, 1 and 2. +Within this context, expressions +\eq{newadd} and \eq{newmult} formalize how addition and multiplication +can be encoded as two 3-way predicates, +%% in $L^G$, + denoted as +Add$(x,y,z)$ and Mult$(x,y,z)$. + +\vspace*{- 0.6 em} +\beq +\label{newadd} +z ~ -~x~~=~~ y~~~~ \wedge ~~~~ z~\geq~x +\end{equation} + +\vspace*{- 0.6 em} +\begin{equation} +\label{newmult} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x}\, k~$ +and +also +% simultaneously +having +each $ \, a_i \leq k$ \, +It will be necessary +%% for us +to employ + either an infinite number +of constant symbols or some Growth-Permitting function +so that an extension of the +language $L^G$ can construct the +full +%infinite +collection of + integers of $~3,4,5,6~....~$. + + + + +%% One awkward aspect of this notation is that +%% it provides +%% no guarantee +%% that integers larger than 2 will exist without the +%% presence of some +%% further +%% methodology for producing larger integers. + + +% +\smallskip + + +One method for resolving this problem was presented in \cite{wwapal}. +% +% It employed an infinite number of further constant symbols. The +% latter's +% ISCE$(\beta)$ +% system was +% % shown to be +% compatible with self-justification, +% but such an infinite number of constant symbols clearly trespassed on +% Hilbert's goal of using a +% %strictly +% finite-sized formalism. +% +Its ISCE$(\beta)$ axiom basis + employed an infinite number of further constant symbols. It +was +compatible with self-justification, +but deviated from +%{\it very sharply from} +Hilbert's +intended + goals +because it employed +% by employing +%an +a {\it highly awkward} +infinite number of +distinct + constant symbols. + +\smallskip + +The +% self-justifying +``ISINF'' formalism +% in +of +\cite{wwapal} +offered an alternate method for resolving this difficulty. +%% in the context of a self-justifying logic. +It +% required the use of +used + {\it only +three} constant symbols. It could prove analogs of all +of Peano Arithmetic's +$\Pi_1$ theorems, but almost all +of + its proofs +unfortunately + had lengths longer +than the number of atoms in the universe. +Most other approaches, for resolving this dilemma, +% are +were +also problematic +because the +invariant + $~++~$, +which Example \ref{ex-2.3} +attributed to the joint work of + Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris, +showed that essentially every Type-S arithmetic is unable to +recognize its +own consistency under a Hilbert-style deductive apparatus. + +\smallskip + + +The challenge posed by $++$ +is, thus, certainly formidable. +Our goal in +%the current +this +article +will be to suggest +how +%that +a Q-function primitive $F(x)$, +that has +% an extraordinarily +a deliberately +ambiguous + function definition, +can help overcome the constraints that $++$ imposes. +Such an +% ultra-ambiguous defined +unusual +primitive $~F~$ will have +an uncountable number +of vectors, analogous to Line \eq{wow}, that are permitted +solutions to +$F$'s +definition. +Our basic goal +% in this article +will be to outline +how this unusual concept is +likely germane to the +self-justifying +%% +%% why it is +%% likely such Q-functions will enable one to build +%% surprisingly efficient self-justifying logics that +%% partially (but not fully) achieve the +%% %{\it diluted portion} of the +%% +aspirations +that +Hilbert and G\"{o}del +expressed in +%statements +$*$ and +$**~$. + +\smallskip + +%\normalsize \baselineskip = 0.98 \normalbaselineskip +%\gvs + + +%% \el{wow}'s +%% dizzying +%% $\aleph_1$ distinct solutions. +%% We will traverse in the opposite direction in this article +%% because +%% Definition \ref{def-2.6} +%% %\eq{wow} +%% formalizes +%% % fascinating +%% % a possible +%% an +%% avenue +%% available +%% for evading $++$'s generalization of the +%% %Second +%% Incompleteness +%% Theorem. + +% {\it in at least a partial sense.} + + +%% +%% %They +%% This level of multiplicity will be +%% %These will turn out to be +%% useful in the present setting +%% because +%% %% +%% %% Our hypothesis is that such +%% %% solutions, while awkward and disadvantageous +%% %% in many +%% %% evident +%% %% %%%%%obvious +%% %% respects, +%% %% should not be discarded. +%% %% This is +%% %% because +%% %% +%% it +%% can +%% formalize a type of +%% allowed +%% growth-permitting function, +%% that is +%% not prohibited by $++$'s generalization of the Second Incompleteness +%% Theorem. +%% +%% + +%\smallskip + +\begin{deff} +\label{def-3.1} +\rm +Let us say +% an integer-valued +a function symbol +$F(x_1,x_2,...x_j)$ is {\bf `` 1-Definitive ''} iff it has only one +solution under its definition by an axiom system $\gamma$. +Let us call $~F~$ {\bf ``Indeterminate''} otherwise. +%(The remainder of this article +(Mathematicians +obviously typically avoid using +function definitions +%%%%%%%%%, $~F~$ +with +%that have +%%%% having +even two solutions, not to +speak of +what will be +\el{wow}'s +dizzying +quantity +of possibly +%potential +%possible +$\aleph_1$ distinct +% number of +solutions, +considered in the current article. +Our +main +conjecture will be that this unconventional +approach is +germane to the challenge posed +by $++$'s +broad-scale +generalization of the +%Second +Incompleteness +Theorem. +This is because our conjecture will be that +our proposed new $~\theta~$ +primitive + will represent +an efficient Indeterminate +function +that eschews $++$'s prohibitions.) +\end{deff} + +% helpful when addressing +% the challenge +% We will traverse in +% an unconventional +% % the opposite +% direction in this article +% because +% our conjecture will be that +% Indeterminate functions +% with $\aleph_1$ different +% allowed solutions for +% \el{wow} +% formalize +% %% +% %% Definition \ref{def-3.1} +% %% % {def-2.6} +% %% %\eq{wow} +% %% will formalize +% %% a +% %% possible +% %% %feasible +% %% %plausible +% %% +% an +% avenue +% % available +% for evading $++$'s +% broad-scale +% generalization of the +% %Second +% Incompleteness +% Theorem.) +% +% (Our conjecture in this article will be that +% %% +% %%The next two sections +% %%will explore +% %%how +% %% +% \el{wow}'s indeterminate ``Q-Function'' symbol $F$ +% %%%can clarify +% is germane to +% the +% aspirations +% that +% Hilbert and G\"{o}del +% % expressed +% stated +% in +% % statements +% $*$ and +% $** \, $, $\,$when +% one employs an +% operator +% $ \, F \, $ +% that +% owns +% % has +% $\aleph_1$ distinct +% available +% solutions). +% \end{deff} + + +%%are viable, +%%especially in an automated theorem proving setting, +%%when Ambiguous function operatives are judiciously +%%employed. +%% + +%%! +%%! can +%%! %%and germane about automated +%%! %%deduction, will +%%! % theorem proving, +%%! %computational deduction, +%%! be satisfied by a self-justifying logic that employs +%%! one +%%! %single $\aleph_1$ +%%! Growth-Permitting function $F(x)$, +%%! that is +%%! % inherently +%%! ``ambiguous'', +%%! {\it accompanied +%%! by} a finite number of non-growth primitives +%%! % {\it non-growth} +%%! $G_1,~G_1,~... G_k$ +%%! that are ``unambiguous''. +%%! +%%! It will also be explained how such results should have useful +%%! applications for automated theorem proving, even when they +%%! employ +%%! only +%%! diluted forms of self-justifying logics. + +%% +%% \vspace*{- 1.0 em} +%% +%% \subsection{Main Notation Conventions} +%% % about Cantor's Paradise} +%% % \large +%% % \baselineskip = 1.8 \normalbaselineskip +%% +%% %\vspace*{- 0.7 em} + +{\bf More Notation:} +$~$Let us say +an axiom system $~\alpha~$ +has +{\bf Infinite Far Reach} iff +it relies upon +{\it only a finite number} of +distinct constant symbols +(and/or axiom sentences) to +% but still can +prove +for each $n$ +the +\el{farreach}'s invariant. + +%for each particular integer $n$. + +\vspace*{- 0.8 em} + +\beq +%% \small +\label{farreach} +\exists ~~x~~~ \mbox{Pred}^n(x)~\geq ~1 +\enq +The ISINF axiomatic framework +from + \cite{wwapal} +was + a self-justifying +system with Infinite Far Reach. +%% +%% The opening paragraph of +%% \cite{wwapal}'s Section 6 +%% %%% quite +%% %was frank +%% warned the reader +%% about ISINF's limitations. +%% These arose because +%% +%% +%% It +%% used the word ``unnatural'' to describe +%% the ISINF system. +%% Such caution +%% % deliberately +%% % self-deprecating term +%% was appropriate because +%% +Unfortunately, this result was mostly useless because +nearly all + theorem-proofs +%of trivial theorems0000000 +from ISINF +were +longer than the number of atoms in the universe. + +The reason +\cite{wwapal} defined ISINF, +%ISINF was worthy of mention, +despite +such +%%% these +% plainly +%%% obvious +limitations, +was +because +ISINF +demonstrated some self-justifying logics, +knowledgeable about their own Hilbert consistency, +were +% technically +able to +prove all of Peano Arithmetic's $\Pi_1$ theorems +together with the +existence of +the infinite set of integers $ \, 1,2,3,... \, \, $. +This result +% is interesting because it casts +did cast +% casts +a +new +perspective +%light +on $\,++\,$'s +invariant +% $++$ (appearing on \pag2) +by showing how some +Type-NS +forms of self-justifying arithmetics +escape $++$'s almost-ubiquitous + reach +by managing to possess infinite far reach + without taking +% {\it without recognizing} +Successor as a total function. + + +%% of the current article. +%% The latter result indicated that Type-S arithmetics, recognizing merely +%% Successor as a total function, are unable to confirm their own +%% Hilbert consistency. +%% Yet, +%% %% despite this fact, +%% ISINF was able to produce an +%% {\it eye-squinting} caveat because it +%% supported the above ``Infinite Far Reach'' property +%% without +%% needing +%% %being able to prove +%% Line +%% \eq{totdefxs}'s declaration that successor is a total function. + +%\smallskip + +We sent an advanced copy of \cite{wwapal} +to +Pudl\'{a}k. +He +appreciated the nature of the challenge we faced, +concerning the delicate nature of self-justifying +arithmetics that are +able to prove +% satisfy +\eq{farreach}'s invariant +{\it for each fixed $~n~$} while +being prohibited +by $++$ +from +recognizing successor as a total +function. +% (due to $++$'s restrictions). +Pudl\'{a}k +%private +%His +emailed communications +\cite{Pupriv} +suggested +that we look at +Ajtai's +work +\cite{Aj94} +about a +%the +Pigeon-Hole function + $~ \glamb(x)~$ defined by the identities +\eq{zm1} and \eq{zm2}. + +\newpage +\vspace*{- 1.2 em} +\beq +%% \small +\label{zm1} +\forall ~~x~~~~~ \glamb(x)~ \neq ~ 0 +\enq + +\vspace*{- 1.2 em} + +\beq +\label{zm2} +%% \small +\forall ~~x~~~ \forall ~~y~~~~ x ~ \neq~ y ~~ \Rightarrow ~~ +\glamb(x)~ \neq ~\glamb(y) +\enq +The relevance of +$~\glamb~$ +% Pigeon-Hole functions +can be +best +%readily +appreciated +% if +when +%we let +$~\glamb^n(x)~$ + denotes +% the +a +term + $~\glamb(~\glamb(~ ... \glamb(x)))~$ +consisting of $~n~$ iterations of the $~\glamb~$ operator. +Then +% the +\el{DUMB1}'s +composite +term $~S_n~$ +% , defined below, shall +will +% then +satisfy +Pred$^n(~S_n~)~\geq ~1.~$ +%% +%% An axiom system, employing the primitive +%% operation +%% $~ \glamb~,~$ +%% can thus +%% can easily +%% prove +%% Line \eq{farreach}'s +%% assertion. +%% %claim. +%% %under almost all conventional logics. +%% +%% +\beq +\label{DUMB1} +S_n~~~=~~~\mbox{Max}[~\glamb(0)~,~\glamb^2(0)~,~\glamb^3(0)~,~...~~\glamb^n(0)~] +\enq +Pudl\'{a}k +observed +that +%the +% Pigeon-Hole function + $~ \glamb(x)~$ +will +grow too slowly (in the worst case) +for +one to be able to +deduce +successor is a total function +from its properties +% further observed that it is known + \footnote{ \baselineskip = 0.94 \normalbaselineskip + The operation $\glamb(x)$ will grow +at a slower rate than Successor, +if it equals $x+1$ for all standard +numbers $~x~$ and if $\glamb(x)=x-1$ + when $~x~$ is +a non-standard integer. This seemingly minute detail +implies one cannot infer +Successor is a total function from + $\glamb$'s behavior, since the latter is contradicted by a + model where + all non-standard +numbers have +%their +sizes bounded by some fixed +% non-standard +number B. +(This +subtle detail, +raised by +Pudl\'{a}k's email \cite{Pupriv}, was fascinating because +it +%shows that +raised the question about whether + a partial exception to +Example \ref{ex-2.3}'s +invariant $++$ +%% on \pag2, +might plausibly exist.) }. +%% +%% thus, +%% suggests the +%% Pudl\'{a}k-Solovay +%% version of the Second Incompleteness +%% Theorem (stated on \pag2) +%% might +%% %%%%%should +%% allow for +%% potential +%% exceptions +%% to it +%% arising from the +%% %delicate +%% formal +%% behaviour of +%% some +%% %% +%% %% presence of +%% %% %some +%% %% these permissible +%% %% +%% %% +%% non-standard +%% variants of +%% % interpretations for +%% the Pigeon-Hole function $\glamb$. }. +%% +%% +%that +%prove +His insightful email \cite{Pupriv} asked +whether +the inequality +Pred$^n(~S_n~)~\geq ~1~$ +might +%would, +thus, +% still +enable a formalism, +% based around +utilizing the + $\, \glamb \,$ operative, +to +somehow +improve upon \cite{wwapal}'s results ? + + +% our +% formalisms could be +% revised +% %modified +% so that +% % the Pigeon-Hole function +% $~ \glamb(x)~$ +% could improve upon \cite{wwapal}'s results. + +%% +%%(possibly using Ajtai's methodologies \cite{Aj-focs}). +%%Sam Buss raised, interestingly, a +%%partially +%%similar +%%issue during an informal conversation +%% \cite{Bu-priv} in 1977. +%% +%%\smallskip +%% +%%These questions +%%% by +%%%Pudl\'{a}k and Buss +%%were insightful because they isolated +%%an +%%important juncture where $++$'s underlying methodology does not apply. +%%A partial answer to these questions appeared in +%%\cite{wwapal}'s closing section, but a more comprehensive full +%%answer has always eluded us. + +%This is because there always seemed to appear +%one wrinkle of details that precluded a full proof. + + +\smallskip + + +It was +initially + unclear +%%%%% to us +whether a positive answer to +Pudl\'{a}k's + probing + question would resolve ISINF's main difficulties. +This is +because +% Expression +\eq{DUMB1}'s +term +$~S_n~$ requires $O(~n^2~)$ logic symbols to encode +% essentially +an integer quantity +greater than + $~n~$ +(since its term +$~\glamb^j(0)~$ uses $O(j)$ logic symbols). +%an integer quantity that exceeds the quantity $~n~$ in size. +Thus once again, the quantity $~2^{100}~,~$ whose binary encoding +requires 100 bits, would require in excess of + $~2^{100}~$ bits to encode. +Such quantities, exceeding the number of atoms in the universe, +were troubling because our +general +goal has been to +construct self-justifying arithmetics that + possessed, at least, +some +partial facets of + pragmatic value. + + +% +% find a partial +% answer to Hilbert's +% Year-1900 Second +% Problem +% that would +% possess, at least, +% some +% partial facets of +% pragmatic value. +% + +\bigskip +\gvs + +The remainder of this section will outline how a different type of +Q-Function operator will +be much better than + $~ \glamb~$ for meeting our needs. +During our discussion, +Power$(x)$ will denote +a primitive specifying +% that + $~x~$ is +a power of +$~2~$. It is +%formally +encoded +by +\eq{wep2} +because +%under +our Grounding language +has +``Logarithm$(x) \,$''$ ~ = ~ \lfloor \,$Log$_2(x) \, \rfloor \,$. +\beq +\vspace*{- 0.6 em} +\label{wep2} +%\small +x=1 ~~~\vee ~~~ \mbox{Logarithm}(~x~)~\neq~\mbox{Logarithm}(~x-1~) +\enq +In this context, + $\zzthe(x)$ +will denote the analog of +the $\glamb(x)$ function +%% haphazard +that walks among the powers of 2 in a manner +similar to +$\glamb(x)$'s +% haphazard + walk through conventional +integers. +It is +formally +defined by \eq{walk1}-\eq{walk4}. +% +% It will thus satisfy +% the axiomatic constraints below (which are +% $\zzthe(x)$'s analog of the more modest constraints given in +% % sentences +% \eq{zm1} and \eq{zm2}). +% The most important difference between these two constructs +% is that axiom \eq{walk1} requires that +% $\zzthe(x)$ maps power of 2 onto powers of 2. + +% {\small + +\vspace*{- 0.6 em} +{\parskip -6 pt +\beq +\label{walk1} +\forall ~~x~~~~~ \mbox{Power}(x) ~~~ \Rightarrow ~~ +\mbox{Power}(~ \zzthe(x)~) +\enq +\beq +\label{walk2} +\forall ~~x~~~~~ \zzthe(x)~ \neq ~ 1 +\enq +\beq +\label{walk3} +\forall ~~x~~~ \forall ~~y ~~~~[~ x ~ \neq~ y ~ +\wedge ~\mbox{Power}(x)~] + \Rightarrow ~~ +\zzthe(x)~ \neq ~\zzthe(y) +\enq +\beq +\label{walk4} +\forall ~~x~~~~~ \neg ~ ~\mbox{Power}(x)~~~~ \Rightarrow ~~~~ +\zzthe(x)~=~0 +\enq} + +\vspace*{- 1.2 em} +\noindent +{\it It needs to be emphasized} that + \eq{walk1} -- \eq{walk4} will be the +{\it only vehicle} our +self-justifying axioms +%will +have available to construct +integers $\geq \, 3$. $~$These +axioms will be called +%They will be henceforth called +the {\bf $~$Up-Walking$~$} axioms. +(The axiom \eq{walk4} +is, +% does not, +technically, +unnecessary + to construct any +integer $\geq \, 1\, $, but it is helpful because +it +% allows us to +formalizes how our methodology will treat integers +which are not powers of 2.) + +Both +the +Q-functions +% the operators +$\glamb$ + and $\zzthe$ are +challenging +%daunting +because there are a + dizzying +$\aleph_1$ distinct +vectors, analogous to + Line \eq{wow}, +that are +%where their definitions permits +representations of these functions. +%% +%% Also, we may combine either operation with our +%% language $L^G$'s grounding function-primitives to formulate a term +%% $~T_n~$ that defines any arbitrary integer $~n~$. +%% +We will soon see that +there is, however, a +distinction +% major difference +between these two concepts +from a computational complexity perspective. + +\begin{definition} +\label{defx-3.2} +\rm +Let $~L^Q~$ +and $~L^{Q^*}~$ +denote the +extensions +of $~L^G\,$'s Grounding language that contain the +respective +additional +function symbols of + $\zzthe$ + and +$\glamb$. Then +$~~L^Q~$ shall be called the {\bf Q-Grounding} language, and + $~~L^{Q^*}~$ +will be called the {\bf Q* Grounding} language. +\end{definition} + +\begin{propp} +\label{th-3.3} +In contrast to the +Q* Grounding language +that requires $O(~n^2~)$ function symbols +for defining a term $~T^*_n~$ for representing the integer +$~n,~$ the Q-Grounding language +%% will need no more than +needs +% uses +only +$O(~$Log$^{ \, 3\,} \,n~)$ symbols to +encode +%formalize +a term +$~T_n~$ representing +$~n$. +\end{propp} + +\vspace*{- 1.0 em} + +\begin{center} +% \small +% Our proof of \phx{th-3.3} +\phx{th-3.3}'s +proof +will rely upon the following notation convention: +\end{center} + +\vspace*{- 0.8 em} + +\begin{definition} +\label{def-3.3} +\rm +Let + $~\zzthe^j(x)~$ +denote the term + $~\zzthe(~\zzthe(~ ... \zzthe(x)))~$ +where there are +$~j~$ iterations of the + $~\zzthe~$ operation. +% Throughout this article, +Then +%for any $~j \, \geq 1~,~$ +%the symbol +$~E_j~$ +will +% shall +% will +denote +the quantity produced by +\eq{ej-def}'s division operation: + +\vspace*{- 0.6 em} + +\beq +\small +\label{ej-def} + \frac{~\mbox{Max} +~[~\zzthe^{\, j \,}(1)~,~~\zzthe^{\, j-1 \, }(1)~,~... ~\zzthe(1)~~] } +{~~\mbox{Half}^{\,j\,} ~ \{ ~\mbox{Max}~[ + ~\zzthe^{\, j \,}(1)~,~~\zzthe^{\, j-1 \, }(1)~,~... ~\zzthe(1)~]~ + ~ \}~~ } +% +% \mbox{Max}(~\zzthe^j(1),~\zzthe^{j-1}(1),~... ~\zzthe^1(1)~ +\enq +It is each to see +$ E_j = 2^j $ for every +$j \geq 1$. +This is + because \el{ej-def}'s +twice-repeating term +object + of +$ \mbox{Max} +~[~\zzthe^j(1), \zzthe^{j-1}(1),...\zzthe(1) \,]$ +% is at least as large as $\, 2^j\,$. +is a power of 2 exceeding $\, 2^j\,$. +%% +%% The definitions of the +%% % Q-Grounding +%% functions of ``Half'', ``Max'' and +%% ``$~\zzthe~$'' imply +%% $~E_j~=~2^j~$ for each +%% $j \, \geq 1$. +%% +For the additional case where $~j=0~,~$ +we will +% formally +define $~E_0~=~1~$ (by +using the +%% +%%setting it equal to +%%our +%%%the +%% +built-in constant symbol +of $~C_1~$). +\end{definition} + +%% , which +%% is intended to +%% %formally +%% represent the integer of ``1''). + + + +{\bf Proof of \phx{th-3.3}:} +%The justification of \phx{th-3.3} is an +Easy consequence of +\dfx{def-3.3}'s machinery. Thus if $~n~$ is a power of +2 of the form $~2^j~$ then +% the preceding +% definition's +expression $~E_j~$ is a term representing $~n \,$'s value +that employs + $O(~$Log$^{ \, 2\,} \,n~)$ +logical +symbols. On the other hand, if + $~n~$ is not a power of +2 then it can be defined +with $O(~$Log$^{ \, 3\,} \,n~)$ symbols by +setting +$~E_j~$ equal to the least power of 2 greater than $~n~$ and +subtracting from $~E_j~$ those powers of 2 that are needed to +produce $\,n\,$'s value. +For example since $76~=~128~-~32~-~16~-~4~,\,$ it can +be formalized as a term $T_{76}$ defined by +$~E_7 \, - \,E_5 \, - \,E_4 \, - \,E_2 ~$. + +% $~~~~\Box$ + +% \baselineskip = 1.8 \normalbaselineskip + +\begin{definition} +\label{def-3.4} +\rm +A term in mathematical logic +is defined to be a syntactic object, built +out of +solely + symbols for representing +functions, +constants and variables. +% +% The nomenclature in +% % classical +% logic has +% %formally +% defined +% a {\it ``term''} to be a syntactic object, built +% out of symbols for representing +% functions, +% constants and variables. +% +% +Such an object is called +% either +a {\bf ``Ground Term''} +%% (or for precision a +%%% {\bf ``Tree-Oriented Ground Term''} ) +when it is built {\it out of solely} +function and + constant symbols. +For example in our Q-Grounding language (which +uses +%owns only +$ C_0 $, $ C_1 $ and $ C_2 $ +as +built-in + constants) +% symbols), +the expression +%of +``$\, C_2- C_1\,$'' +is a +% such +a Ground term. +Two more complex +examples of +Ground terms are +``Max$( C_2 , C_1 - C_0)$'' +and ``Max$( ~\zzthe(C_1)~,~C_2 ~)$''. +Also, +expression $~E_j~$ +in Line \eq{ej-def} +should be viewed as +a Ground term (when one +views +its +use of the +symbol + ``1'' as an %informal +abbreviation +for the +constant + ``$~C_1~$''). +\end{definition} + + +\begin{remm} +\label{rem-def-3.4}. +\rm +Section \textsection \ref{ss6} +and its Proposition \ref{th-6.1} +will technically distinguish between two +kinds of Ground terms, that it calls the +% +%{\bf Comment of Definition \ref{def-3.4}'s Notation:} +%We will distinguish between two +%kinds of Ground terms in Section \textsection \ref{ss6}, +%called its +{\bf ``Tree-Oriented''} and +{\bf ``Dag-Oriented''} formats. +The latter will differ from a more +conventional tree structure +by having a +Directed Acyclic Graph structure replace +a logic's +usual + tree format for defining its quantitative values. +Our discussion in the next two sections will be +simplified if we use the shorter phrase of +{\it ``Ground Term''} +to refer to what Section \textsection \ref{ss6} will more +accurately call a +{\it ``Tree-Oriented Ground Term''}. +(It will turn out +% that our +Proposition \ref{th-6.1} +will later explain how Dag-Oriented Ground Terms +differ from +their + tree-oriented +counterparts +% Ground Terms by allowing us +%to reduce the +by reducing the +$O(~$Log$^{ \, 3\,} \,n~)$ length of a +tree-oriented term to a more compact +$O(~$Log$\, \,n~)$ size.) + \end{remm} + + +\begin{definition} +\label{def-3.5} +\rm +A ground term $~T~$ will be called an +{\bf ``Observable''} +object iff there is +%{\it only one} +an +unique +interpretation of its +quantified value in the +%meaning in our +Q-Grounding language. +It +%will be + is +called an +{\bf ``Unobservable''} iff it has multiple +%plausible +such +interpretations +due to $\zzthe$'s ``indeterminate'' definition +(e.g. see Definition \ref{def-3.1}). +\end{definition} + +%%% (due to the +%%% %uncountably +%%% ambiguous nature of +%%% % our built-in function +%%% $~\zzthe~~$). +%%% \end{definition} + +\begin{exx} +\label{ex-3.6} +\rm +The previously mentioned ground term +Max$( ~\zzthe(C_1)~,~C_2 ~)$ is an ``unobservable'' +because it can assume any of the plausible integer values +of $~2 \, , \, 4 \, , \,8 \, , \,16 \, + \, ... ~$. +On the other hand, +%% expression +\eq{xoo} +is an ``observable'' +that + represents + the integer value of ``3''. +(This is because +its +twice-repeating +term +``$~\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~]~$'' is bounded +below by 4, causing the left and right sides of its subtraction +operation to differ by +% an amount of +exactly 3.) +\beq +%% \small +\label{xoo} +\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~] ~~-~~ +\mbox{Pred}^{\, 3 \,} \{~\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~]~\} +\enq +Our notation +%thus +also +implies that Line \eq{ej-def}'s + expression $~E_j~$ +is an + ``observable''. This implies, in turn, that + \phx{th-3.3}'s term $~T_n~$ is an ``observable'' + employing no more than + $O(~$Log$^{ \, 3\,} \,n~)$ +logical +symbols. +For example since $76~=~128~-~32~-~16~-~4~,\,$ +it follows that $~ T_{76}~$ +corresponds to the term +$~E_7 \, - \,E_5 \, - \,E_4 \, - \,E_2 ~$, +$~$where each $~E_j~$ employs only + $O(~$Log$^{ \, 2\,} \,j~)$ symbols. +%%%%%\end{exx} +\end{exx} + + + +Thus, \dfx{def-3.5} and Example \ref{ex-3.6} have illustrated +%that +how +the realm of ``observable'' objects is a +% very +broad and accessible world, +of +non-trivial +%% pragmatic + significance. +It allows every integer $~n~$ to be represented by a +% reasonably small +term $~T_n~$ with +% an +a tight + $O(~$Log$^{ \, 3\,} \,n~)$ length +(in a context where Section \textsection \ref{ss6}'s more elaborate formalism +will allow us to reduce this length to a yet more +attractive $O(~$Log$ \,n~)$ size). + +%% +%% We will soon see +%% how Arithmetic's conventional $\Pi_1$ sentences can +%% also have +%% % pleasingly +%% terse encodings. +%% + + +%% Also, all +%% Arithmetic's conventional logical sentences do have +%% likewise +%% % pleasingly +%% terse encodings. +%% % under our notation convention. + + +The distinction between +``Observables'' and ``Unobservables'' +% ground terms +will +%also +%% +%% cast a +%% delightful +%% +offer a + new perspective on +the aspirations +% that +which +Hilbert and G\"{o}del +expressed +in +their +statements $*$ and $**$ +under our proposed +\newline +2-part conjecture. +It + will suggest +how the Second Incompleteness Theorem +can +% remain to +be seen as a majestic result +from a purist perspective +, while +a {\it well-defined fragment} of +%their +what +Hilbert and G\"{o}del +sought in + $*$ and $**$ +%aspirations +%% in statements $*$ and $**$ +can +likely +%almost certainly +be +%part-way +satisfied (in at least a +% well-defined +limited sense). + + +\begin{remm} +\label{rem-3.7} +{\bf (explaining the goals of this paper):$~$} +\rm +Let us say +that +a basis axiom system $~\alpha~$ owns +a {\it ``Finitized Perspective''} of the Natural Numbers +if it requires only a +{\it finite number} of proper axioms +to construct the full set of integers +$~0,1,2,3~... ~$. All conventional arithmetics have this property. +%It is useful to divide such +Such +logics +%arithmetics +fall into two categories, +called {\it Single} and {\it Double-Formatted} systems. +%as defined below: +They are defined below: + %These constructs are defined below: +\bed +\item[ a. ] +%An axiom basis $~\alpha~$ +%will be called +{\bf Single-Formatted Arithmetics} consist of +axiomatic basis systems +% $~\alpha~$ +%all of +whose +%iff all its +ground terms are +all +Observables. +(Most conventional arithmetics +%%%% will +%fall into this +lie in this +category +%when the +because they +employ the + growth +% function +properties + of +the Successor +operation +%function + in +% a straightforward +%the +%% a conventional +the traditional +manner.) +%% since the +%% the simple growth function of Successor +%% easily +%% generates +%% all the natural numbers). +%are {\it ``Single-Formatted Formatted''} logics. +\item[ b. ] +{\bf Double-Formatted Arithmetics} +% representing +represent +systems +%%%consisting of +%%%%axiomatic +%%%logics +%%%%%basis systems +whose ground terms +may be either + Observables +or Unobservables. +(Axiomizations +for Q-Grounded logics +%% of +%% the +%% % our +%% Q-Grounding language +are +%%% will +%obviously +%%% be +``Double-Formatted'' +because they +allow $\theta$'s analog of +\el{wow}'s function symbol $F$ +to have +an uncountable number of +different allowed +representations). +% +% (Our +% Q-Grounding language +% gives support to such a system. +% This is because it +% can have its function primitives +% defined by a finite number of +% proper axioms,) +% %axiom-sentences.) +\ennd +The distinction between +categories +%Items +(a) and (b) is +significant +% important +because +Example \ref{ex-2.3} +%%% \pag2 +%%% had +already explained how + statement $++$'s generalization +of the Second Incompleteness Theorem applies to +any formalism recognizing Successor as a total function. +Thus, Item (b)'s Double-Formatted logics +are useful, if one wishes to consider alternatives +to +%formalism that do not recognize +successor as a total function. +%More precisely, +In this context, +Hilbert's +% famous +%Year-1900 +Second +Open +Problem +can be viewed + as a {\it 2-part question}, +composed of sub-queries Q-1 and Q-2: +%%%%% +%%%%% {\it 2-part question}. +%%%%%The separation of Hilbert's question into two parts, +%%%%%called Q-1 and Q-2, will allow +%%%%%%% +%%%%%%% This +%%%%%%% bipartite +%%%%%%% distinction +%%%%%%% is useful because it +%%%%%%% can enable +%%%%%%% +%%%%%the academic community to better +%%%%% with +%%%%% what Hilbert and G\"{o}del were +%%%%%seeking to accomplish +%%%%%in +%%%%%their +%%%%%statements +%%%%%of $*$, $**$ and $***$. +\bed +\small +\item[ {\bf Question Q-1$~~$}] {\it Are any axiom systems +able to + prove +theorems +verifying + their own consistency in a robust sense?$~~$} +The answer to Q-1 is clearly ``No'' because the combination + G\"{o}del's initial 1931 result \cite{Go31} with +%the +%further +Hilbert-Bernays's result +\cite{HB39} +and the Pudl\'{a}k-Solovay invariant $++$ +(from Example \ref{ex-2.3}) +%% \pag2) +imply +arithmetics of ordinary strength cannot prove +their own consistency in a robust sense. +\item[ {\bf Question Q-2$~~$}] + {\it Can +logic systems +%arithmetic logics +%axiomatizations of Arithmetic +% , at least, +%somehow +``appreciate'' +% (not formally ``prove'') + their +own consistency in some +{\bf REDUCED} sense, that is diluted +but not fully immaterial?} +$~~\,$The answer to +%question +Q-2 is +complex +%%% more complex than Q-1 +%less clear-cut +because +%several types of +some +arithmetics, +such as \cite{ww93,ww1,ww5,wwapal,ww9,ww14}'s paradigms, + can +formalize +% ``recognize'' +their +own consistency +using Example \ref{ex-2.5}'s +% a +Fixed-Point {\it ``I am consistent''} +axiom. +\ennd + + +%% % sentence $\,\oplus\,$. +%% %%Using +%% %%%%%%%%%Under +%% % Using the notation from +%% Under +%% Lines +%% \eq{totdefxs}--\eq{totdefxm}'s notation, +%% these paradigms include: +%% % both: +%% \bee +%% \small +%% \baselineskip = .86 \normalbaselineskip +%% \item +%% Type-A arithmetics +%% \cite{ww93,ww1,ww5,wwapal,ww9,ww14} +%% %capable of +%% recognizing their self-consistencies under +%% either the deductive mechanics of semantic tableaux or one +%% of its cousins. (See especially \cite{ww14}'s +%% recent Wollic-2014 paper.) +%% \item +%% Type-NS arithmetics recognizing their Hilbert consistency, +%% such as the formalisms of \cite{ww1,wwapal} +%% %further +%% improved, possibly, +%% with the added techniques introduced in +%% this article. +%% \ene +%% +%% \ennd + + +A theme of this article will be that +% distinction +the distinguishing +between questions Q-1 and Q-2 and between +Single and Double-Formatted Logics +is +related +% likely central +to the mystery +% that has enshrouded +enshrouding +the Second Incompleteness Theorem. +This is +%is germane to the aspirations of automated theorem proving +%will be germane to this article +because there +%is no doubt +can be no doubt that +% can be no question +%%%%%%%% that +the Second +Incompleteness Theorem is fully +robust +% result +from a purist +%pristine +mathematical perspective. +Yet, +it is still problematic to fully +% +% simultaneously +% % at the same time, +% it is +% hard to +% entirely +% +dismiss + Hilbert's 1926 +suggestion that + some +specialized forms of logics should +%declaration +%% +%% concerns +%% in $\,*\,$ +%% that +%% {\it ``the honor of human understanding''} +%% requires +%% examining +%% % explaining +%% % considering +%% how logic systems can +%% +possess +a type of well-defined + knowledge about their +own +internal +consistency. +(This is because it is +highly + awkward to explain how and why +human beings +are able to +%can +%manage to +motivate +their +%cogitations, +cognitive process, +% themselves to think, + if they do not own +some type of +% instinctive +internal +knowledge about their own + consistency.) + +% sufficient +% % enough +% knowledge about their +% % own +% internal +% consistency +% to motivate +% cognition. + +% Bad change above +%cogitation. +% themselves to cogitate. + +%%It is also +%%especially +%%% very +%%tempting +%%to divide Hilbert's Year-1900 +%%Open Question into its Q-1 and Q-2 separate parts +%% during the 21st century, +%%as computers share with humans cogitative abilities. +%% +%%Maybe DELETE above sentence ??? +\end{remm} + +% \baselineskip = 1.8 \normalbaselineskip + +The next +two +sections will +describe our +2-part +conjecture about how +%a +Double-Formatted Logics are +likely to +%produce some +cast +new perspectives +on +this topic. +%the nature of the Second Incompleteness Theorem. +Before starting this subject, it should be mentioned +that other unusual interpretations of the Second Incompleteness +Theorem have followed +from Gentzen's perspectives about +transfinite induction +under his $\epsilon_0$ ordinal +\cite{Ge36,Ta87}, the +%% +%% +%% explore +%% how \cite{wwapal}'s results for a Single-Formatted logic +%% can be revised +%% % with our new $~\zzthe~$ function +%% under a +%% +%% Before +%% broaching +%% this topic it should be mentioned that +%% %0fascinating +%% other approaches to +%% %efforts to partially +%% the Second Incompleteness Theorem +%% % do +%% have centered around +%% + Kreisel-Takeuti's ``CFA'' +system \cite{KT74} +and also +the {\it interpretational frameworks} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to +our +%% main +%\cite{ww93}--\cite{ww14}'s +methods. +%approach. +They +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Also, +they +%apply to +employ +``cut-free'' logics +(rather +than +a preferable Hilbert-style deductive apparatus). +%that +%%%%%%%%%%% explored +%%%%%%%%%%% in +%%%%%%%%%%% \textsection \ref{ss32} ). +%%%we are considering). +%% +%%Instead, CFA uses the +%%special +%%properties of ``second order'' generalizations of Gentzen's +%%{\it cut-free} +%%Sequent Calculus, +%%and +%%the +%%interpretational approach +%%formalizes how some systems +%%recognize their +%% Herbrand consistency +%%on localized sets of integers, +%%which +%%unbeknownst to +%%themselves, +%%includes all +%%integers. +%% +%%%These +% alternate +%%%approaches +Their +%alternate +% very + fascinating +perspective +should +% certainly, + be examined by researchers +interested in the +Second +Incompleteness Theorem, +although +%but +it is +%% +% they are +unrelated to +our particular +% the next section's +%specific analysis of +type of +Hilbert-styled self-justifying effects, +studied in the current article. + + +%% systems +%% formalizing +%% %verifying +%% their +%% own consistency +%% %%%%%Definition \ref{def-2.2}'s +%% %%% approximate +%% under +%% Hilbert-styled +%% deduction. + + +%deduction. +% Hilbert deduction. + +%methods. +%formalism. + + +%% It is, +%% % They +%% %are, +%% however, not germane to the next section's +%% perspective. + +%methodology. +%main formalisms. +%methods. +%results. + + % \baselineskip = 1.8 \normalbaselineskip + +%\section{ +%\small +%Improving \cite{wwapal}'s Results with a +%``Double-Formatted'' Logic } + +\section{First Half of our 2-Part Conjecture} + +% \label{ss32} +\label{ss5} + + +The only aspect of our prior research that will be directly +related +to our 2-part conjecture is the ISCE axiom system, +defined in \cite{wwapal}'s Sections 3 \& 4. +The next several paragraphs will review +\cite{wwapal}'s results, for the reader's convenience. +%% +%% This section will +%% review \cite{wwapal}'s results in sufficient detail +%% so that a reader need not examine \cite{wwapal}'s formal +%% text, +%% +%% %%%%%definition of the ISCE axiom system. +%% +%% During our discussion, +%% + + +During our +discussion, +%review of \cite{wwapal}'s results, +$~L^G~$ will once again denote +our Grounding-level language built out of our six +non-growth functions, +consisting + of +the +Subtraction, Division, +Maximum, Logarithm, Root and Count operations. +Also, $\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ will denote +three constant symbols designating the +integers values of +``0'', ``1'' and ``2''. +In a context where Pred$(x)$ is an abbreviation for +``$\,x \,- \, 1\,$'' +(or more precisely +``$\,x \,- \, C_1\,$'' ), +the ISCE axiom system from \cite{wwapal} +used +\eq{start}'s axiom + statement +to define + $\,C_0\,$, $\,C_1\,$ and $\,C_2~$: +% these three constants: +\begin{equation} +\label{start} +\mbox{Pred}( C_0 ) = C_0~ \, \wedge ~ \, +C_1 \neq C_0~ \, \wedge ~ \, +\mbox{Pred}( C_1 ) = C_0 ~ \, \wedge ~ \, +\mbox{Pred}( C_2 ) = C_1 +\end{equation} +%Also, +The challenge +\cite{wwapal} +faced was its formalism could +not use any of the +% conventional +function-operations of +successor, addition or multiplication to infer the existence +of larger integers from the initial constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,$. This was because +the Pudl\'{a}k-Solovay result $++$ +indicated + the +presumption successor is a total function +precludes +most +%axiom +systems +from recognizing their +own Hilbert +consistency. + +Our article +\cite{wwapal} +considered two alternatives +%to a conventional Successor +%function symbol +for overcoming these difficulties, + called +the {\bf Additive} and {\bf Multiplicative Naming} +conventions. +They defined +some +further constant symbols $~C_3,~C_4,~ C_5,~ ...~$ +and $~C^*_3,~ C^*_4,~ C^*_5,~ ...~$ +where +%respectively +$~C_j~=~2^{j-1}~$ and $~C^*_j~=~2^{\, 2^{ \,j-2}}~$. + +The definition of these +% new +constants +% symbols +is +easy +%straightforward +under $L^G\,$'s +% Grounding-level +language. +% called $L^G~,~$ +%all of whose function objects are non-growth primitives. +This is because +Lines +\eq{newadd} and \eq{newmult} +%had +specify how +% that +two 3-way predicates, called +Add$(,x,y,z)$ and Mult$(,x,y,z)\,$, +%can +%do +encode the identities of +% can be encoded to specify, respectively, +$x=y+z$ and $x*y=z$. +Our additive and multiplicative +% naming +conventions +can, +%will, + then, define + $~C_3,~C_4,~ C_5,~ ...~$ +and $~C^*_3,~ C^*_4,~ C^*_5,~ ...~$ +%by using +via +an infinite number of instances of +%utilizing respectively + \eq{addcov} and +\eq{multcov}'s +%{\it infinitely long} +axiom schemas: +% two infinite schemas of axiom-sentences: +%% +%% that belong to our +%% ``Additive'' and ``Multiplicative +%% Naming Conventions'', +%% then the values for +%% $~C_j~$ and +%% $~C^*_j~$ can be easily derived from $j-2$ instances of +%% %respectively \eq{addcov} and \eq{multcov}'s +%% these +%% schema: +%% + + +{ +%\small +\beq +\label{addcov} +\mbox{Add}(~C_{j-1}~,~C_{j-1}~,~C_{j}~) +\enq +\beq +\label{multcov} +\mbox{Mult}(~C^*_{j-1}~,~C^*_{j-1}~,~C^*_{j}~) +\enq} +The methodology in + \cite{wwapal} +%% employed \eq{addcov} and \eq{multcov}'s schema in a context where it +presumed +% assured +%the Y of +the ``names'' for its constants $ C_j $ +and $ C^*_j $ +had nice compact encodings using $O(~Log(j)~)$ bits. +Its formalism calculated +%, thereby, +the values of ``unnamed'' integers from +named entities via the {\it non-growth} Subtraction and +Division primitives. For instance since $~20~=~32-8-4~,~$ +the quantity 20 +can be encoded as $~C_6-C_4-C_3$. +%%%%%%%%%%%%%%%% under \eq{addcov}'s naming convention. + + +%% required +%% $O(~Log(j)~)$ bits. +%% Thus, the length of these encodings was +%% much +%% smaller +%% than the respective +%% numbers +%% % magnitudes of +%% $2^{j-1}~$ and $2^{2^{j-2}}$ +%% %that +%% these constants represent. + +The challenge \cite{wwapal} +faced was to determine whether +%it was possible to formulate +self-justification +was possible +under +either +\eq{addcov}'s +% ``Additive'' +or \eq{multcov}'s +% ``Multiplicative'' +%% naming +schema. +It found +%that + \eq{multcov}'s +multiplicative +% naming +convention was incompatible +with self-justification (due to its +%%very +speedy growth rate), +but +%In contrast, +\eq{addcov}'s additive +% naming +schema did, +conveniently, + permit self-justification. + +\medskip + +Our new proposed Double-Formatted form of a self-justifying +axiom system is easiest to describe, if we first +review \cite{wwapal}'s Single-Formatted formalism +and then incrementally refine it. + +The extension of our base-language $~L^G~$ +that includes the Additive Naming Convention (ANC)'s +additional constants + $~C_3,~C_4,~ C_5,~ ...~$ will be called +an {\bf ANC-Based Language} and be denoted +as $~L^{ANC}~$. +Also if + $\, t \,$ denotes any term in $\, L^{ANC} \,$'s +language, then +the quantifiers in +the two wffs of +$~ \forall ~ v \leq t~~ \Psi (v)~$ and +$\exists ~ v \leq t~~ \Psi (v)$ +will be called $\, L^{ANC} \,$'s +{\bf ``Bounded +Quantifiers''}. + + +\begin{deff} +\label{def-3.8} +\rm +The analogs of a conventional arithmetic's +$\Delta_0$, $\Pi_n$ and $\Sigma_n$ +formulae +in the +language $L^{ANC}$ will be denoted as +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ + and $\Sigma^{ANC}_n$. +Thus, +a formula will be defined to be +$\Delta^{ANC}_0$ iff all its quantifiers are bounded. +The +%%%%%%%%% below +definitions +of $\Pi^{ANC}_n$ and $\Sigma^{ANC}_n$ +formulae are also quite conventional: +\bee +%\small +\parskip -2 pt +\baselineskip = 0.8 \normalbaselineskip +\item +Every +$\Delta_0^{ANC}$ formula is considered to +be +also +a +$\Pi_0^{ANC}$ and +an +$\Sigma_0^{ANC} $ expression. +%% +%% ``$~\Pi_0^{ANC}~ \,$'' and +%% % also +%% ``$~\Sigma_0^{ANC}~ \, $''. +%% +\item +A +formula +is called + $ \,\Pi_n^{ANC} \,$ +when it +% is +can be +encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ +where +%with +$\Phi$ is $\Sigma_{n-1}^{ANC}$ +\item +A formula +is called + $\Sigma_n^{ANC}$ +when it can be encoded as +$\exists v_1~ ...~ \exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{ANC}$. +\ene +\end{deff} + + + +%%\begin{deff} +%%\label{def3.9} +%%\rm + + \parskip 1pt + + +Given an initial axiom system $\beta,$ +the Theorem 3 of \cite{wwapal} defined a +self-justifying logic, called +ISCE$(\beta)$ +that could prove all +$~\beta\,$'s $\Pi_1^{ANC}$ theorems and +verify its own consistency under a Hilbert-style deductive +apparatus. It consisted of the following four +groups of axioms: +% +% \newpage +\begin{description} + \parskip 0pt +\item +{\bf GROUP-ZERO:} +This +schema +% axiom group +will +use \el{start}'s axiom to define the constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ +and +%employed +%an infinite number of instances of +\el{addcov}'s Additive Naming +schema +%convention +to define + the further constants + $ C_3, C_4, C_5, ... $ +\item +{\bf GROUP-1:} +It is convenient to +define + ISCE's Group-1 and Group-2 +axioms using a notation that +will support \cite{wwapal}'s Theorem 3 +in a +% slightly + more +general sense than +appeared in \cite{wwapal}, +%%% under a slightly different notation convention, +% is transparently equivalent +% (but slightly different) from \cite{wwapal}'s counterpart, +so that +% a +the +new +% proposed +%%%% second + ``IQFS'' +formalism +(appearing later in this section) +% shall +will +%proposal shall +% framework will +be easier to describe. +Let us +therefore + say a $\Pi_1^{ANC} $ sentence is {\bf Simple} +iff the only built-in constants it employs are +$\,C_0\,$, $\,C_1\,$ and $\,C_2$. +Then ISCE's Group-1 scheme will +allowed to + be any finite set of +simple $\Pi_1^{ANC} $ axioms, called $~S~,~$ +that is consistent with Group-zero schema and +which + has +the following properties: +\bee +\item + The union of $~S~$ with ISCE's Group-Zero +axioms +will be capable of proving all $\Delta^{ANC}_0 $ +statements which +are true. +\item + The union of $~S~$ with ISCE's Group-Zero +scheme +will also be capable of proving +that +the ``=" and ``$\leq$" predicates +% own +support +their conventional +transitivity, reflexivity, symmetry and total ordering +properties. +\ene +Any finite set +$\Pi_1^{ANC} $ axioms +with the above properties can be used to define $~S~$ +and +support +%prove +an analog of +\cite{wwapal}'s Theorem 3, +by a trivial generalization +\footnote{A formal proof of this generalization of +\cite{wwapal}'s results is +%absolutely +entirely +routine. +% and omitted here for the sake of brevity.} +For the sake of brevity, it is +omitted.} +% +%here,} + of +the methodologies from Sections 3 and 4 of +\cite{wwapal}. (Thus, +any such finite set $~S~$ supporting Conditions (1) and (2) +can be employed +by +ISCE's +Group-1 part.) +%%% +%%% and it is unimportant which +%%% particular defining +%%% set is used. +% +% BBB111 +% +% This +% % schema +% axiom group +% consisted of a finite +% set of +% $\Pi_1^{ANC} $ axioms +% %, CALLED $F$, +% defining ISCE's +% Grounding function primitives. +% %This means that +% For each such function $G$ and set of numbers +% $ {k}, {k_1}, {k_2}, ... {k_m}$, +% %the combination of +% the Group-Zero and Group-1 axioms +% %must +% will +% imply +% $ G( {k_1}, {k_2}, ... {k_m}) \,=\, {k} $ when +% this sentence is true +% \footnote{ \f55 +% Our +% $\Pi^{ANC}_1$ +% encoding for the +% Group-1 scheme needs, +% technically, +% % employ +% only +% employ +% the three constant symbol $C_0$, $C_1$ and $C_2$ for the +% union of all +% the +% Group-Zero and Group-1 axioms +% to satisfy +% their +% %its +% %the +% above requirements.} . +% The Group-1 schema +% of \cite{wwapal} +% will also +% assign the ``=" and ``$<$" predicates +% their conventional +% % logical +% properties. +% %footnoted property.} +% %% +% %%(Any finite +% %%set of $\Pi_1^{ANC} $ +% %%sentences meeting these conditions is +% %%suitable.) +% %% +\item +{\bf GROUP-2:} +Let +$\ulcorner \, \Phi \, \urcorner$ denote $\Phi$'s G\"{o}del number, and +$\mbox{HilbPrf}_{ \beta }(x,y)$ +denote a +%%%%%%%%%%% $\Delta _0^{ANC+}$ +$\Delta _0^{ANC}$ +formula indicating $y$ is a +Hilbert-styled +proof +from axiom system $\beta $ of the theorem +$x$. +% +% Suppose that +%$~\beta~$ uses the same Grounding function symbols as +%ISCE$^{ANC}(\beta)$, +%and it therefore generates +%a set of +%% $\Pi_1^{ANC+} $ theorems. +% $\Pi_1^{ANC} $ +%theorems. +% +For each +%$\Pi_1^{ANC+} $ +$\Pi_1^{ANC} $ + sentence $\Phi$, +the Group-2 schema +for ISCE$(\beta)$ +% +%was defined in \cite{wwapal} +%did +will +contain +% an +one +axiom of the form: +%% +%% \begin{equation} +%% \small +%% \label{group2nold} +%% \forall ~x~\forall ~y~ +%% ~~\{~~[~~ \sigma_{~ \ulcorner \, \Phi \, \urcorner +%% ~}(x)~\wedge~ +%% \{~ \mbox{HilbPrf}~_\beta +%% ~(~ x ~,~y~)~~]~~ +%% \Rightarrow ~~ \Phi~~ \} +%% \end{equation} +%% % {\bf IMPORTANT CLARIFICATION:} +%% %{\small +%% %%{{\bf DECIPHERING LINE \eq{group2nold}:$~$} +%% {{\bf Clarification:$~$ } +%% \el{group2nold} is {\it helpful} +%% because ISCE(\beta)$ can infer +%% \eq{group2old}'s {\it simpler statement} +%% directly +%% from the combination of +%% \eq{group2nold}, +%% % it, +%% the Group-1 schema and \el{deltf}'s definition of +%% ``$~\sigma~$''.} +%% +\begin{equation} +% \small +\label{group2old} +\forall ~y~~~\{~ \mbox{HilbPrf}~_\beta +~(~ \ulcorner \Phi \urcorner ~,~y~)~~ +\Rightarrow ~~ \Phi~~\} +\end{equation} +\item +{\bf GROUP-3:} +This last part of +%%%%%%%%%%%%%%% \cite{wwapal}'s +ISCE$(\beta)$ +formalism was + a single +self-referencing +$\Pi_1^{ANC}$ +sentence +stating: + %% essentially declaring: +\begin{quote} +% \small +%%%%%%%%%%%%% $ \oplus ~ \oplus ~~~$ +$ \oplus \oplus ~~~$ + ``There +%is +exists +no +Hilbert-style proof of 0=1 from the union of the Group-0, 1 and 2 +axioms with {\it THIS SENTENCE} (referring to itself)''. +\end{quote} +\end{description} +%{\bf CLARIFICATION:} +{\bf Clarifying $ \oplus \oplus$'s Meaning:} + $~$Several of our articles +\cite{ww1,ww5,wwapal,ww9} +employed +self-referential + $\Pi_1^{ANC}$ constructions, +similar +to +%%%%%%%%%the sentence + $ \oplus \oplus \,$ +as Example \ref{ex-2.5} had mentioned. +%% +%% whose +%% % precise implications were outlined in +%% significance was explained by +%% %formalized by +%% Example \ref{ex-2.5}. +%% +A reader can find +several +%detailed +slightly different + illustrations about how +$~ \oplus \oplus ~ $ +% $\, \oplus \oplus $'s +% self-referential statement +is encoded in these articles. + + +% +% Each of these articles provide examples of +% how analogs for +% $\, \oplus \oplus $'s +% self-referential +% statement +% are encoded. + + + +% If the reader wishes to see +% a formal encoding for +% $\, \oplus \oplus $'s +% %self-referential +% % Fixed-Point +% statement, +% %it +% one such example +% is provided by +% \cite{wwapal}'s +% Lemma 1. +% + + +\begin{deff} +\label{def-3.9x10} +\rm +Let $~I(~\bullet~)~$ denote +an operation that maps +an initial axiom basis $\, \beta \,$ onto an alternate +system $\,I(\beta)\, $. +(One example of +such an operation is the + ISCE$( \, \bullet \, )$ +framework, +that maps +an initial axiom basis of + $~\beta~$ onto +the alternate formalism of + ISCE$(\beta).~)~$ +Such an operation $~I(~\bullet~)~$ +is called {\bf Consistency Preserving} +iff $\,I(\beta)\, $ is consistent whenever +the union of + $\beta$ with the Groups 0 and 1 axiom schemas is +consistent. +\end{deff} + + +%Most of our research in +% \cite{ww93}-\cite{ww14} +% has + +Several of our research projects +%centered around +had employed + \dfx{def-3.9x10}'s +framework. +For instance, +%% +%% the +%% +%% +%% Its +%% %%% main +%% % central +%% focus in +\cite{wwapal} +demonstrated +%consisted of showing + the ISCE$( \, \bullet \, )$ +mapping was consistency preserving. +Thus if PA+ denotes the extension of +Peano Arithmetic that +includes +PA's traditional Addition and Multiplication +functions +%% +%% 1n addition to the conventional +%% functions of addition and multiplication +%% contains +%% +%% +plus $L^G\,$'s six +added +%previously mentions + Grounding-level function +primitives, +%functions, +then + ISCE$( \, $PA+$ \, )$ +will +be automatically +%be + consistent +(because PA+ was consistent). +% consistent whenever PA+ is consistent. +Hence while Peano Arithmetic is unable to +verify its own consistency (on account of G\"{o}del's +seminal 1931 discovery), it is sufficiently agile to +prove the following relative-consistency statement: +\begin{center} +%% \small +$\#~~~$ If PA is consistent then + ISCE$( \, $PA+$ \, )$ is + self-justifying. + \end{center} +This +%The above +% statement + relative-consistency statement +%does offer +provides +a partial +positive +answer to +the +Q-2 version of Hilbert's Second Question. +%This is because it formalizes one respect +It +captures +% Brad change encapsulizes +one +% positive +respect +in which +%such as +ISCE$( \, $PA+$ \, )$ +can {\it appreciate} its own consistency. +This respect is, obviously, +only +of a limited nature +because $++$'s generalization of the Second +Incompleteness Theorem indicates +that +no Type-S arithmetic +can +% simultaneously +recognize +% {\it both} +its Hilbert consistency and +take +successor +to be + a total function. +%The consistency-preservation property of +% ISCE$( \, \bullet \, )$ +%dies, however, +It does, however, + raise the following +enticing + question: +\begin{quote} +$\# \, \#~ $ +Can the infinite number of +distinct + constant symbols, employed by +ISCE's Group-Zero schema, be reduced to a finite size +by a Type-NS Self-Justifying Logic, +without resorting to \cite{wwapal}'s inefficient +``ISINF'' +methodology (which requires +a proof +having an expensive + $\Omega(N)$ length for constructing integers $N$ +whose binary encoding uses $O(~$Log$(N)~)$ bits) ? +\end{quote} +The remainder of this section will outline how an encouraging +answer to +$\, \# \, \# \, $'s query +is likely to +%%%should, +% conveniently +arrive, +%be plausible +when one +% carefully +%delicately +modifies ISCE's formalism +with the Q-function operative of $~\zzthe~$. + +\begin{deff} +\label{def-3.10} +\rm +Let $L^Q$ +% once +again denote the extension of +$~L^G\,$'s Grounding language that includes +the +% further + Q-function symbol of $\, \theta $. +Then +$\Delta^Q_0$, + $\Pi^Q_n$ and $\Sigma^Q_n$ +will, +intuitively, +%similarly + denote the +% 1-to-1 +analogs of +\dfx{def-3.8}'s +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ and $\Sigma^{ANC}_n$'s +formulae +in $~L^G\,$'s language. +In particular, if $~\Phi~$ +is one of an +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ or $\Sigma^{ANC}_n$ +formula, +then +% the formula +$~\Phi^Q~$ +will be called +% respectively +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +when +%if +it +differs from $~\Phi~$ +only +by + replacing each constant $~C_J~$ +from the set $~C_3,C_4,C_5...~$ +with Line \eq{ej-def}'s +% mathematically equivalent term of +term $~E_{J-1}~$. +\end{deff} + +\parskip 2pt + +%% 444444444444444 + +\begin{example} +\label{ex-3.11} +\rm +Suppose $~\Phi$ +is one of a +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ or $\Sigma^{ANC}_n$ +sentence that employs the three constant symbols +of $C_4$, $C_6$ and $C_{10}\,$ +for + representing the +three numbers +of 8, 32 and 512. +Let us recall +that + $E_3$, $E_5$ and $E_9\,$ +% do +formulate these three quantities +under Line \eq{ej-def}'s notation. +Then $~\Phi^Q$ will have an +identical definition as + $~\Phi$ +except each $C_j$ is replaced by +$E_{j-1}$. + + +A formula is, +moreover, + defined to lie in one +of the +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +classes +{\it only if} it is constructed in such a manner. +This fact +% brad assures +ensures +that all the terms employed in these +three classes of sentences are +{\it ``Observable''} terms. +Hence ``Unobservable'' ground terms are allowed in +$~L^Q\,$'s language, but {\it they are excluded} +from occurring in the +{\it ``end-product''} +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +theorems +that +%%will now be discussed. +%it proves ! +do +encapsulate +%formalize + the {\it intended use of +%its +this +formalism.} +\end{example} + +\begin{deff} +\label{def-3.12} +\rm +The term {\bf IQFS($ ~\bullet~$)$~$} refers +to the self-justifying analog of + ISCE($ ~\bullet~$)$~$ +%that will be employed +under $L^Q\,$'s +language. +(The acronym ``IQFS'' stands for +``Introspective Q-Function Semantics''.) +In a context where $~\beta~$ is +%some i +an initial axiom +system that proves theorems +%under +in +the +language $L^Q$, the +system +%formalism + IQFS($ \, \beta\,$) +%$~$ +will +be defined as a + 4-part +formalism, +analogous to ISCE($\beta$), +except for the following +%relatively modest +changes: +\bed +\parskip 0pt +\item[ a. ] +The Group-Zero schema of + IQFS will +differ from ISCE's analog +by replacing +\el{addcov}'s ``Additive Naming'' schema with +the +Up-Walking axioms, +given in Lines \eq{walk1}--\eq{walk4}. +(This is because +the language $L^Q$ differs from + $L^{ANC}$ by +having the + Q-function operator of $~\zzthe~$ +define the formal quantities that are represented by +the constant symbols +of $~C_3,C_4,C_5~~....~$ +under $L^{ANC}.~~)$ +Otherwise both +these +Group-Zero +schemes will be +identical. +Thus, + they +will +both +use \el{start}'s axiom to define the +three initial constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,~$. +\item[ b. ] +The Group-1 scheme of IQFS will be identical to ISCE's counterpart +except it will reflect Item a's modification of the Group-Zero +scheme for $\, L^Q\,$'s revised language +(e.g. +the footnote \footnote{\f55 +In a context where a $\Pi_1^Q $ sentence is +called ``Simple'' +when it contains no $~E_j~$ term with $~j \geq 2~,~$ +the Group-1 scheme of IQFS will be analogous to +ISCE's counterpart by consisting of + any finite set of +simple $\Pi_1^Q $ axioms, called $~S^*~,~$ +that is consistent with Group-zero schema and +which + has +the following properties: +\bee +\item + The union of $~S^*~$ with IQFS's Group-Zero +axioms +will be capable of proving all $\Delta^Q_0 $ +statements which are true. +\item + The union of $~S^*~$ with IQFS's Group-Zero +scheme +will also be capable of proving +that +the ``=" and + ``$\leq$" predicates +support their conventional +transitivity, reflexivity, symmetry and total ordering +properties. +\ene +The above two properties are the 1-to-1 analogs of +their counterparts used by ISCE's Group-1 scheme. +As was the case with ISCE's formalism, +any finite set +of simple +$\Pi_1^Q $ axioms +with the above properties can be used to define $~S^*~.~$ +Once again, +it is unimportant which +particular +finite-sized +definition for $S^*$ +% such set +is used.} describes +such a +%the +resulting +%% quite + straightforward revision of +the Group-1 scheme.) +\item[ c. ] +All the $\Pi_1^Q$ axioms lying in IQFS's +%Group-1 and +Group-2 scheme will be identical to their counterparts +under ISCE, except they +will + employ +\dfx{def-3.10}'s machinery for translating + $ \,\Pi_1^{ANC} \,$ +sentences into their equivalent + $ \,\Pi_1^Q \,$ counterparts. +\item[ d. ] +The Group-3 axiom of IQFS +will be similar to ISCE's Group-3 +{\it ``I am consistent''} +axiom-statement, except +the latter's notion of ``I'' will reflect the above +changes in the Groups 0, 1 and 2 schemes. +It +%Thus, the new +%Group-3 axiom +will, +thus, +be a $\Pi_1^Q$ sentence declaring that +{\it ``There is no +Hilbert-style +proof of 0=1 from the union of the preceding axioms +with THIS SENTENCE (looking at itself)''.} +\ennd +\end{deff} + +The properties of IQFS + are +interesting +% especially intriguing +from a +% Computer Science +Complexity perspective +because +\phx{th-3.3} showed +% that +every integer $\,n\,$ +can +%could +be encoded +%under it by +by +%via +a + term $T_n$ that has an $O\{~[~$Log$(n)~]^3~\}$ length. +This is +unlike the +%much +%%%%%%%%%% far worse +asymptote $\Omega(n^2)$ that results +when the +$~\zzthe$ primitive +(from Lines \eq{walk1}-\eq{walk4}) +is replaced by +Lines \ref{zm1} and \ref{zm2}'s +less efficient +primitive of +$~\glamb~$. + + +% function + + +%% It +%% is +%% also +%% almost +%% as good as the +%% %encoded +%% $O\{~$Log$(n)~\cdot ~ $LogLog$(n)~\}$ length +%% that ISCE produces. +%% % while +%% Moreover +%% IQFS,$~$ {\it unlike ISCE,$~$} +%% requires only a finite number of constant symbols +%% to define any +%% %starting +%% integer $N$. + +%In other words, the + + +An open question of fundamental interest is whether or not +IQFS framework is +% fundamentally +analogous to ISCE by also +satisfying +Definition \ref{def-3.9x10}'s Consistency Preservation property. +The +% close +similarity between the definitions of these two +axiomatic frameworks + strongly +suggests that +\cite{wwapal}'s proof of ISCE's consistency preservation +property +%should +ought to +be extensible to IQFS. + +The first half of our 2-part conjecture is, +%thus, +the presumption + that IQFS +does have this +desirable +characteristic. (Unfortunately, we suspect a +formally +rigorous proof of +this consistency preservation property + will be +% much +%significantly + more +complex +%complicated +than +it was for +ISCE's +analog in Theorem 3 of \cite{wwapal} +because a more complicated mathematical infrastructure will +be needed to overcome certain bottle necks that would +otherwise arise during the +proof.) + + +%% More will be said about this conjecture +%% in +%% + +If +our conjecture +does hold then IQFS will be +% much +substantially +more germane to the +goals that Hilbert sought in statement $*$ than +was ISCE. +This is +because the former framework +differs from the latter by + needing only three starting constants, +representing the integers of 0, 1 and 2, in order to +construct the +full +infinite span of integers $~3,4,5,~...~$. + +%\bigskip + +\smallskip + +Moreover, +our conjecture that IQFS will +duplicate ISCE's consistency-preservation property is based on +more than the analogous definitions between these two frameworks. +It is also because Item $++$'s + Pudl\'{a}k-Solovay +generalization of the Second Incompleteness Theorem +% +% (from the Item $++$ given +% in Example +% \ref {ex-2.3} ) +% is +% proven +% by Appendix A +% +is demonstrated by the Proposition A.1 +(in Appendix A) +to be inapplicable to + IQFS's formalism. +It is within this combined context that IQFS formalism +seems to +become especially enticing, when it +differs from ISCE by needing only three starting constant +symbols to construct the full infinite range of integers. + +%from a purely finite basis. + + +\parskip 2 pt + +\section{Second Half of our 2-Part Conjecture} + +\label{ss6} + +Both the virtues and drawbacks of \textsection \ref{ss5}'s +conjecture +are highlighted by Proposition \ref{th-3.3}'s +characterization of +the $O\{~[~$Log$(n)~]^3~\}$ +%invariant for +quantity of logical symbols +used for encoding +% needed to to encode +an integer $~n~$ as a + grounded term + $T_n$. +Thus, +this + amount is clearly +%much +significantly + better than the alternate +$O(~n^2~)$ +length +that arises when the $~\theta~$ function symbol +is replaced by the less efficient primitive +$~\glamb~,~$ +%%%%% operator +defined by Lines +\eq{zm1} and \eq{zm2}. +On the other hand, one would ideally +prefer our ground terms to resemble the conventional encoding +of a binary number that uses + $O\{~$Log$(n)~\}$ +logical symbols to encode an +arbitrary number $~n~$. + +It turns out it is possible to improve +Proposition \ref{th-3.3}'s encodings +to such a compressed $O\{~$Log$(n)~\}$ size, +if one adds only a minor +wiggle to the logic's notation +%%%%%%%%%%%%%%%%%% conventions +convention. +This distinction arises because most traditional +logic +languages +% , as typically formalized in textbooks, +will +formalize +% both conventional terms and +Definition \ref{def-3.4}'s +``Ground terms'' +as tree-like structures. +An +easy +alternative modification of this +%perspective +construct +will +% would +allow these terms to +own the more general structure of +a Directed Acyclic Graph (Dag). + +% Kozen has noted ????. +%some computer scientists have noted. + +This distinction has been +traditionally viewed + as an unimportant +wrinkle +%issue +because it can be +readily +%easily +proven that every Dag-oriented term can be +converted into its Tree-oriented counterpart with +merely a +% only an usually unimportant +Polynomial increase in space. +The reason for our special interest in an +alternate Dag-formulated +%distinction +%between a Tree-oriented and Dag-oriented +base-language for logic +is that the latter +ushers in + more efficiently encoded Ground terms. +Thus, Proposition \ref{th-6.1} +will +indicate +that +Proposition \ref{th-3.3}'s earlier + ground terms can +have their lengths + compressed from an +$O\{~[~$Log$(n)~]^3~\}$ +to an $O\{~$Log$(n)~\}$ +magnitude in a Dag context. + +%in the latter context. + + +\begin{propp} +\label{th-6.1} +% \rm +Let us consider a Dag-analog of +\textsection \ref{ss4}'s formalism where one again: +\bee +\item +$\theta$ is the only available growth permitting function symbol, +\item +the only built-in constant symbols are the +entities + $~C_0~$, $~C_1~$ and $~C_2~$ +for representing +the values of 0, 1 and 2, and +\item +three function symbols for +representing + integer-subtraction, integer-division +and the maximum operation +are, once +again, available. +\ene +%Within this notation, +In this context, +any integer $~n~$ can be encoded +by a Dag-oriented Ground term +$~T_n^*~$ +using only + $O\{~$Log$(n)~\}$ logical +symbols. (As the pointers needed to +separate these $O\{~$Log$(n)~\}$ logical objects +will have encodings using + $O\{~$LogLog$(n)~\}$ bits, the total amount of +memory to encode a + Dag-oriented Ground term will require + $O\{~$Log$(n)~\cdot ~~$LogLog$(n)~\}$ bits.) +\end{propp} + +The proof for Proposition \ref{th-6.1} +rests essentially on a more elaborate version of the +argument that \textsection \ref{ss4} +used to justify Proposition \ref{th-3.3}. +It +% essentially rests on +uses +the fact that +Proposition \ref{th-3.3}'s ground term $T_n$ +will have +% has +many repeating subterms that can be compressed into +% one +single objects under a Dag-style notation. +%% +%% Our +%% %We supply in the attached +%% $\, 1 ~\frac{1}{2} \,$ page +%% proof in +%% +Appendix B provides +a $\, 1 ~\frac{1}{2} \,$ page +formal proof +about how +%the +a more +nicely +compressed object $T_n^*$ +can be encoded +using only $O\{~$Log$(n)~\}$ logical symbols. + +Let IQFS$^*$ denote the analog of our +IQFS framework that has +Proposition \ref{th-6.1}'s + Dag-oriented Ground Terms replace + \textsection \ref{ss4}'s earlier +Tree-oriented Ground Terms +in an accordingly revised language. +The second half of our 2-part conjecture is that there is no +difference between + IQFS$^*$ and +IQFS + from the perspective of +Definition \ref{def-3.9x10}'s +Consistency Preservation property. +Both these formalism are thus anticipated to +be analogous to \cite{wwapal}'s ISCE +framework, insofar as + IQFS$(\beta)$ and IQFS$^*(\beta)$ +will be consistent whenever +the union of + $\beta$ with the Groups 0 and 1 axiom schemes is +consistent. + +Although + IQFS$^*$ and +IQFS will +possess + similar properties under the second half of +our 2-part conjecture, the distinction between these +two formalisms should not be viewed as inconsequential. +This is because the Ground terms in the + IQFS$^*$ use $O\{~$Log$(n)~\}$ logical symbols, +similar to the classic encodings of an integer $~n~$ as +a binary number. Thus, our conjecture about the self-justifying +properties of IQFS$^*$ +will be more meaningful than its analog +for IQFS +(because IQFS$^*$ possesses +%% owns +much greater levels of efficiency). + + +%is much more efficient. + +%\end{document} + + + +\section{On the Epistemological Significance of Our 2-Part Conjecture} +\label{ss7} + +\parskip 2pt + + +All our published articles +(since 1993) + about self-justifying arithmetics +have emphasized that our evasions of the +Second Incompleteness Effect rested upon using arithmetics +that were much weaker than traditional arithmetics in, at least, +some +particular +well-defined respects. The attached Appendix A +has emphasized +that there are good reasons for conjecturing that IQFS satisfies +a consistency-preservation property similar to ISCE, but this +does not reply to a second question that many +researcher +% will +may + want +to have + addressed. + +% skeptics may initially raise. + +% will +% understandably +% not, by itself, change many reader's skepticism +% about employing forms of arithmetic that are weaker than its +% traditional counterparts. + +It concerns the fact that our proposed IQFS formalisms +%even more controversial is that they are what +employs what +\textsection \ref{ss4} calls a +``Double-Formatted'' logic, where a +ground-term can correspond to either +what Definition \ref{def-3.5} +calls an + ``Observable'' +or an + ``Unobservable'' +object. + The latter will possess no +fully + evident meaning +because +% our mathematical notation allows an +Unobservable ground-terms +can +%possess +represent any of +multiple different +allowed values. +%meanings. +Many +researchers +will thus wish +to +% have +receive +a reply to +% thus raise +the following +%skeptical +resulting +question: +% +% to be +% addressed: +% answered: +\begin{quote} +\it + $ \bullet ~~~$ +Does +% not +the presence of +``Unobservable'' ground-terms in +the language of IQFS cause it +to lie fundamentally outside the domain +of modern mathematical logic +(thus making its partial evasion of the Second Incompleteness +Theorem +mostly + irrelevant) ? +\end{quote} +Our +% +% positive +reply to $ \, \bullet \,$'s skeptical inquiry +has two quite +positive +% distinct +facets. +% +% will have +% two +% % equally important +% %parts. +% very positive +% aspects. +% % facets. +% +It is given below: +\bee +\parskip 0pt +\item +% Our +Propositions +\ref{th-3.3} and \ref{th-6.1} have +illustrated how +%emphasized that each +every +integer $~n~$ can be represented by a ground term $T_n$ +with two +%%%%% +distinctly +different forms of efficiency. +% different permissible types of efficiency. +%Moreover our +In this context, +Definition \ref{def-3.10} +and Example \ref{ex-3.11} +have noted that our language $L^Q$ is sufficiently +agile so that each of $L^{ANC}\,$'s +$\Pi_n^{ANC}$ +sentences can be directly translated into +their equivalent $\Pi_n^Q$ counterparts. The presence of +``Unobservable'' objects + in $L^Q$ +% +is +thus +% has +no major +drawback +% disadvantage +because +% when +all the conventional arithmetic objects from + $L^{ANC}$ have efficient translations in + $L^Q\,$'s language. +\item +Moreover, there is an added sense where it is +propitious +% nice +that $L^Q$ +utilize +% possesses + {\it both} +``Observable'' and ``Unobservable'' ground-terms. +This is because human +beings, + in their common colloquial verbal languages, +use +references to + ambiguous linguistic objects in their everyday +mundane + speech habits +(similar to ``Unobservable'' ground-terms). +% and logical sentences that possess such ambiguities). +Thus assuming our 2-part conjecture is +correct, our proposed IQFS +formalism + will own the +pleasing +simultaneous abilities to: +\bed +% \baselineskip = 1.05 \normalbaselineskip + \baselineskip = 1.1 \normalbaselineskip +% \small +\parskip 0 pt +\item[ a. ] +verify its +% (his) +own consistency, +\item[ b. ] +prove analogs of all of Peano +Arithmetic's $\Pi_1$ theorems +(despite the fact it starts with only +$C_0~$, $C_1$ +and $C_2\,$ as +its +% three + initial constant symbols), and +\item[ c. ] + resemble the ambiguity +that humans display when attempting to decipher the meaning +of human-type +language +objects (in that Unobservable ground-term +contain a level of built-in ambiguity +that is + analogous to +many mundane +colloquial objects, that typically lack full specification +% inherent levels of ambiguity +under an +ordinary +conventional +human language). +% +% sentences, that lie outside the domain of formal mathematics +\ennd +\ene +The combination of Items 1, 2a, 2b and 2c thus suggests +that +some perhaps + 5-10 \% +fragment of +the aspirations that +Hilbert and G\"{o}del +had +expressed +in statements $*$ and $**$ +% thus +can be positively acheived +(within the obvious context where +the initial objectives of Hilbert's Consistency Program +were definitively shown to + have been over-ambitious by the Incompleteness +Theorem). + + +%% The current paper will be possibly the last paper I publish about +%% self-justifying logics in a context where it is being submitted +%% for publication when I am over 66 years old. I would therefore +%% like to answer two other further questions that a reader may have +%% about self-justifying logics in the Remarks 7.1 and 7.2 below: + +\medskip + +It +also +should + be mentioned that the infinite +number of axiom +sentences, + appearing in the Group-2 schemas +for ISCE$(\beta)$, IQFS$(\beta)$ and IQFS$^*(\beta)$, +can be +% should be able to be +nicely + reduced to a +purely +finite size, with almost no loss +in +%of useful +information. This was done in \cite{ww14} +for the Group-2 +scheme +of its IS$_D(\beta)$ formalism, +with the latter +%%%%%%%%%%%%%%%% still +%where the +% +% germane Group-2 scheme was +% reduced to one +% single axiom sentence +% while the resulting +% +% latter +%formalism still +% produced +producing +isomorphic counterparts +of all of $~\beta \,$'s +full set of + $\Pi_1$ theorems +(e.g. see Sections 5 and 6 of \cite{ww14}). +The same methods will +% trivially +routinely +generalize for the +% +% Analogs of the techniques from Sections 5 and 6 of +% \cite{ww14} +% % will easily +% apply to each of the +% +ISCE, + IQFS and IQFS$^*$ frameworks, if our 2-part conjecture +does hold true. + + +% 777777 + + +\section{Summary of Results} +\label{ss8} + +\baselineskip = 1.21 \normalbaselineskip +% \parskip 2pt + +\parskip 4pt + +The +% importance +% % significance +% of the +Second Incompleteness Theorem's +%important +%underlying +vital significance +% implications +in establishing a +90-95 \% +refutation of the objectives of +Hilbert's Consistency Program +% are, +is, +of course, undeniable. It would, nevertheless, be of interest if +some 5-10 \% +fragment of +%its +Hilbert's + initially intended + objectives +% +% that Hilbert and G\"{o}del set forth in +% their +% statements $*$ and $**$ +% +was +%were +%could be +partially + achieved. + +This is because it is difficult to fathom how human beings +can +maintain +their psychological motive to engage in cognition without owning some +type of qualified instinctive faith in their own consistency. +Moreover, the close similarity between the defining structures of the +ISCE and IQFS frameworks strongly suggests +\cite{wwapal}'s proof of ISCE's consistency preservation property +should generalize for both +IQFS and + IQFS$^*$ under a more elaborate +% and sophisticated +inductive machinery. +Such a self-justifying arithmetic +would be of interest +%is very satisfying +% be very tempting +because it would be +supportive of each of +the invariants of +1, 2a, 2b and 2c +listed in Section +% from +% \textsection +\ref{ss7}. + + +%More precisely, + +This is because + if IQFS satisfies an analog of +ISCE's consistency preservation property (as we conjecture), +then IQFS(PA+) would be +% a +philosophically +%interesting +curious. +% +% This is +% % formalism +% % +% % response +% % to the open questions raised by Hilbert and G\"{o}del +% % in $*$ and $**$ +% % +% because IQFS(PA+) would +% % then +% +It would then +be a self-justifying +% arithmetic +logic +which +% that +proves +% +all +Peano Arithmetic $\Pi_1^Q$ theorems, that +% which +is +% {\bf NOT MUCH HARMED} + {\it NOT MUCH DILUTED} +by the presence of unobservable +ground terms in $L^Q\,$'s language (because such +unobservables +%%%%% do {\it never physically appear} in +% do +{\it never formally appear} in +IQFS(PA+)'s end-product $\Pi_1^Q$ theorems). + + +%. and it would thus be very tempting. + + +The importance of $++$'s generalization of the +Second Incompleteness Effect, due + to the joint work of + Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +% \cite{Ne86,Pu85,So94,WP87}, +has been repeatedly +emphasized. +%mentioned in this article. +% +%has been repeatedly emphasized and +%cannot +% can never +% be understated. +It demonstrated conventional Type-S arithmetics +cannot verify their own +Hilbert +consistency. +It is for this reason that +our examination of self-justifying logics has focused +on arithmetics where either: +%our subsequent research explored +%arithmetics with: +%% +%% For instance, +%% this vital invariance +%% was +%% %has been +%% cited, in detail, +%% % mentioned +%% in all our published papers +%% except \cite{ww93}, +%% (The latter article could not cite +%% this topic because our +%% 1994 +%% telephone conversations with +%% Robert Solovay +%% stimulated Solovay's observation about +%% hybridizing \cite{Pu85,Ne86,WP87}'s +%% formalisms to establish \cite{So94} +%% that no +%% %% +%% %% \cite{ww93} was published.) +%% %% +%% %% had taken +%% %% place +%% %% that +%% %% %he +%% %% Solovay +%% %% \cite{So94} +%% %% %began +%% %% %in 1994, that Solovay +%% %% %%%%%%%%%noted +%% %% %%%%%%%%%1 +%% %% observed +%% %% % in 1994 +%% %% % he know +%% %% how +%% %% % to extend +%% %% the work of +%% %% Pudl\'{a}k Nelson and Wilkie-Paris, +%% %% \cite{Pu85,Ne86,WP87} +%% %% implied +%% %% %show +%% %% all +%% %% natural +%% %% +%% natural +%% Type-S axiom systems +%% %are +%% can corroborate its +%% % were +%% % unable to verify their +%% own Hilbert consistency.) +%% It is within this context that our research has explored two +%% methods for constructing self-justifying logics where +%% either: +%% % +%% % types of formalisms where an formalism +%% % $~\alpha ~$ +%% % can partially +%% % corroborate its own consistency where either: +%% % +%% +\bed +\parskip 1pt +\baselineskip = 1.2 \normalbaselineskip +\item[ I. ] +a system $~\alpha~$ +% Can +does +corroborate its own consistency +under +both + semantic tableaux deduction and its + Tab(1) +generalization +%in a context where + when +it +% formally +views +%under +%\cite{ww14}'s notion of +% ``Type-A'' formalisms that view +% +%%% addition as a total function and +multiplication +formally as a 3-way relation +(as +was + encapsulated by \cite{ww14}'s +summary of + \cite{ww93,ww1,ww5,ww6}'s +% \cite{ww93,ww1,ww5,ww6,ww9}'s +results). +\item[ II. ] +or alternatively +a system + $~\alpha~$ recognizes its +own Hilbert consistency +in a context where it +is a ``Type-NS'' logic +that views +{\it BOTH} + addition and multiplication as +being 3-way relations. +% (instead of being +% total functions). +\ennd +It is within the context of Topic II where our +IQFS(PA) and + IQFS$^*$(PA) frameworks are conjectured to be +self-justifying +arithmetics +% that are + capable of proving +% isomorphic counterparts of all of +all Peano Arithmetic's $\Pi_1$ theorems. + +\smallskip + +% arithmetics, capable of proving analogs of +% Peano Arithmetics $\Pi_1$ theorems translated into the +% language of $L^Q$. + +Such an approach will be no full remedy +%%%% rrremm +% +% Such a perspective will +% have only limited advantages +% %be no panacea +% +when the +traditional growth properties of the addition, +multiplication and successor function operations are replaced +by an +alternative $~\theta~$ function symbol, +with its +% surprising +use of +a surprisingly modified +% an + ``indeterminate'' function definition. +It does, however, suggest that +{\it a well-defined fragment} of what Hilbert and +G\"{o}del sought in statements $*$ and $**$ +% is, alas, feasible in some +should be +likely + feasible under +some special theoretical +circumstances, +that are +%%%% of +%% , at least, +% quite +%limited but +partially +tempting +% significance +on account of +% our + Propositions +% \ref{th-3.3} and \ref{th-6.1}. +\ref{th-3.3}, \ref{th-6.1} and A.1. + + + +Thus, our 2-part conjecture +raises the prospect of +a +logic +%formalism +simultaneously recognizing the +% +% results can simultaneously +% recognize the +% +% % undeniable +central +and crucial +role of the Second Incompleteness Theorem +in +modern +mathematics, +%mathematical logic, +while also postulating how +%a +% thinking +human +beings can +formalize +% formally own +enough of +a {\it fragmented knowledge} +about +their +%his/her +own +internal +consistency +% for it +to gain +% for gaining +%acquiring +the psychological stamina +% to allow it +% needed +for +motivating +% engage in +cognition. + +% In other words, \textsection \ref{ss4}'s crucial + +\smallskip + +This is +%ultimately + because \textsection \ref{ss4}'s +% notion of +discussion about + Double-Formatted arithmetics +illustrates +%suggests +how +to separate the +crucial + notions of ``Observable'' and + ``Unobservable'' ground terms, so +that +% one can recognize +%postulate how to +% {\it simultaneously} +the historic +% importance +significance +of the +Second Incompleteness Theorem +is +potentially +compatible with +% and that +% while also +%%while +% also +%% appreciating that + a {\it partial fragment} of +the aspirations +% +% that +% %the Y that +% Hilbert and G\"{o}del +% %% raised +% % +% expressed +% in $*$ and $**$. +% +$*$ and $**$ of +%that +%the Y that +Hilbert and G\"{o}del +being realized. + +\medskip + +{\bf Acknowledgments:} +%%%%As several Sections 1-4, +%\textsection \ref{ss2}, +I am +% much +%very +grateful to +%was influenced by an emailed letter from +Pavel Pudl\'{a}k +for suggesting +\cite {Pupriv} +I investigate how to apply +% an analog of +Ajtai's study +\cite{Aj94} of Pigeon-Hole effects +for +refining my prior results about self-justifying logics. +(The combination of + Pudl\'{a}k's +insightful suggestion +% \cite {Pupriv} +and our +subsequent +% further + distinguishing +between the +$~\glamb ~$ and $~\theta~$ operators +has led to the +conjectured + improvement of +\cite{wwapal}'s ISCE formalism.) +% I am very grateful to Pudl\'{a}k for making this +% suggestion. +I also thank Bradley Armour-Garb for +% many +several +comments about how to improve +% the +this paper's +presentation. + +% in this article. + +\small +\parskip 2 pt + +\baselineskip = 0.92 \normalbaselineskip +\baselineskip = 0.80 \normalbaselineskip +\bibliographystyle{abbrv} +\bibliography{aa} + +%\setlength{\textwidth}{5.0 in} + +\gvs + +\parskip 0 pt + +\section*{Appendix A: An Added Justification for Our Conjecture} + +\parskip 3 pt + +Section \ref{ss5} indicated that +our conjecture that IQFS will +duplicate ISCE's consistency-preservation property was based on +more than the analogous definitions between the +IQFS and ISCE frameworks. +It was also because the + Pudl\'{a}k-Solovay +generalization of the Second Incompleteness Effect +(from the Item $++$ given +in Example +\ref {ex-2.3} ) +can be + proven + to be inapplicable to + IQFS's formalism. +This is because our Proposition A.1 below +demonstrates that the union of the Groups 0, 1 and 2 +axioms of IQFS(PA+) are unable to prove that successor is +a total function. + +{\bf Proposition A.1} +{\it +Let $~\beta~$ denote any +consistent + extension of +Page 16's axiom system PA+ +% (employing the $L^G$ language) +that serves as the input argument for the ISCE($\beta$) +and IQFS($\beta$) formalisms. +Then the union of the Groups 0, 1 and 2 axiom schemes for +IQFS($\beta$) are unable to prove that any of the operations +of successor, addition and/or multiplication are total functions. +Hence, extensions of these three groups of axioms are not precluded +from verifying their own consistency by $++$'s generalization of +the Second Incompleteness Effect.} + + +{ +{\it Proof:} +Our article + \cite{wwapal} +showed + ISCE($\beta$) +was a consistent self-justifying axiom +system whenever $~\beta~$ satisfies Proposition A.1's hypothesis. +% Hence, the invariant $++$ implies that +% ISCE($\beta$) is unable to confirm that successor is a total function. +It then easily follows that there exists a +non-standard +model $M_b$ +for ISCE($\beta$) +that contains some non-standard +integer $b$ which represents some power +\newline +of 2. + +Let $M_b^b$ +denote the subset of the model $M_b$ +which consists of the set of integers that are +no larger than $b$. +Then $M_b^b$ is also a model of + ISCE($\beta$) because the latter axiom system contains no growth functions. + +Now let us define a function operator $~\theta~$ so +that +\bee +\item $~~\theta(x)~=~2x~~$ when $x$ is a standard number which is power of 2. +\item $~~\theta(x)~=~\frac{x}{2}~~$ when $x$ is a non-standard number which is power of 2. +\item $~~\theta(x)~=~0~~$ whenever $x$ is not a power of 2. +\ene + Also, let $N_b^b$ +denote a model identical to $M_b^b$ +except that $N_b^b$ + contains the added function symbol of $\theta$. +It is easy to show that + $N_b^b$ + is +a +model for the Groups 0, 1 and 2 axioms for + IQFS($\beta$) + formalisms because Items 1-3 imply that +$~\theta~$ will satisfy Lines + \eq{walk1}-\eq{walk4}'s four ``Up-Walking'' requirements. +Moreover since the element $~b~$ owns no successor under the model + $N_b^b$, our proof has shown that + Groups 0, 1 and 2 axioms for + IQFS($\beta$) do not imply that successor is a total function. +Hence $++$'s generalization of the Second Incompleteness Theorem +does not apply to this set of axioms +(because +these three groups of axioms + can be formalized by +a model that fails to recognize +successor as a total function). + $~~~\Box$ + +\smallskip + +It is useful to close this appendix with the reminder that +Proposition A.1 does not formally prove the consistency of + IQFS($\beta$). +It merely makes this prospect look likely +because it demonstrates no +% analog +counterpart + of $++$'s machinery applies +to IQFS($\beta$). +It is for this reason that we conjecture that + IQFS will +duplicate ISCE's +analogous +consistency-preservation property. + + + +% \newpage + +\section*{Appendix B: Providing Proposition \ref{th-6.1}'s Proof} + + +Our proof for Proposition \ref{th-6.1} +will rest upon +an essentially more elaborate version of the +\textsection \ref{ss4}'s proof for +Proposition \ref{th-3.3}. +It will use the fact that +Proposition \ref{th-3.3}'s ground term $T_n$ has +many repeating subterms that can be compressed into +single objects under a Dag-style notation. + +Throughout our proof of Proposition \ref{th-6.1}, +$~G~$ will denote our Directed Acyclic Graph (Dag), +and +the symbol $~M~$ will be an abbreviation for +$~\lceil~1\, + \, $Log$_2(n)~\rceil~$. +This directed graph will consist of approximately +$~5 \, \cdot \, $Log$(n)~$ nodes. +The first five of its six groups of nodes +in $G$'s graph +are defined below +in roughly +% bottom-to-top order: +bottom-up order: +\bee +\item The bottom nodes in $G$'s +graph +will be the three +built-in constant symbols of + $~C_0~$, $~C_1~$ and $~C_2~$ +that represent +the values of 0, 1 and 2. +%\ene +%\end{document} +\item +Let + $~\zzthe^j(x)~$ +denote the term + $~\zzthe(~\zzthe(~ ... \zzthe(x)))~$ +where there are +$~j~$ iterations of the + $~\zzthe~$ operation. +For each $~j \leq M\,$, the next $j$ levels of +$G$'s directed graph will define +nodes $A_j$ that formalize the quantity + $~\zzthe^j(1)~$. In a context where +$~A_0~$ +is an abbreviation for $~C_1~$, +the remaining $A_j$ are defined by: +\beq +A_j ~~ =~~~ \zzthe(~A_{j-1}~) +\enq +\item +For each $~j \leq M\,$, let $B_j$ +denote the value of Max$(A_0,A_1,A_2,...A_j)$. +In a context where +$~B_0~$ +is an abbreviation for the entity $~C_1~$, +the remaining $B_j$ are defined +chronologically in $G$'s directed graph by: +\beq +B_j ~~ =~~~\mbox{Max}(A_j,B_{j-1}) +\enq +\item +For each $~j \leq M\,$, let $D_j$ +denote the value of $~2^{-j} \, \cdot \, B_M~$. +In a context where +$~D_0~$ +was defined by the prior entry $B_M$ in +our directed graph, +the remaining $D_j$ nodes in our graph +will be defined via \eq{usediv}'s +Division operation: +\beq +\label{usediv} +D_j ~~ =~~\frac{D_{j-1}}{2} ~~~~~~\mbox{e.g.}~~~~~~ +D_j ~~ =~~\frac{D_{j-1}}{C_2} +\enq +\item +For each $~j \leq M\,$, +the node + $E_j$ +will represent the quantity +$~2^j~$. +These nodes in $G$'s graph will +be defined by +\eq{usediv2}'s +Division operation: +\beq +\label{usediv2} +E_j ~~ =~~\frac{D_M}{D_{M-j}} +\enq +\ene + + +Some added notation is needed to describe the last part of +$G$'s graph for formalizing $n$'s representation as a +Dag-oriented ground term +employing $O \{ ~$Log$(n)~\}$ +logic symbols. + Let $T_n$ + denote +Proposition \ref{th-3.3}'s formulation of $~n~$ +as a Tree-oriented ground term, and +$T_n^*$ +denote its Dag counterpart. +Our proof of +Proposition \ref{th-3.3} noted +$T_n$ could be constructed by setting $E_M$ equal to +the least power of 2 greater than $~n~$ and +then subtracting from it +those powers of 2 which are needed to produce the quantity $n$. + +The exact same methodology will now +be used to construct +our $T_n^*$ representation of $~n~,~$ except + we +will now +obviously +use the methodologies from Items 1-5 to +assure +% that +no more than $O\{~$Log$(n)~\}$ +graph nodes are used to construct +all +\el{usediv2}'s + $E_j$ terms. +(For example since $86~=~128-32-8-2$ +%% $118~=~128-8-2$ +which in turn equals ``$~E_7-E_5-E_3-E_1~$'', + the final stage of +$G$'s construction of $T^*_{86}$ will +first + set node +$F_1$ equal to ``$~E_7-E_5~$'', +then + set node +$F_2$ equal to + ``$~F_1-E_3~$'' +and lastly have the desired +output node +$F_3$ represent the final answer as the +quantity of ``$~F_2-E_1~$''.) + +It is easy to see that this methodology will never use more +than + $O\{~$Log$(n)~\}$ logical symbols to encode + $T_n^*$ as a Dag-oriented ground term. +Moreover, the needed pointers in the Dag graph $G$ +will require no more than LogLog$(n)$ bits to +%separate its +distinguish between these + $O\{~$Log$(n)~\}$ +separate objects. +%logical symbols. +Hence +if one selects to use a pointer methodology to formulate +$G$'s graph, +then +% our full graph $G$ will need +no more than + $O\{~$Log$(n)~\cdot~$LogLog$(n)~\}$ bits +will be needed +to encode +all these pointers. $~~\Box$ + + +\end{document} + diff --git a/nachlass/collected_dew_materials/2011-2019/2015-aug10.tex b/nachlass/collected_dew_materials/2011-2019/2015-aug10.tex new file mode 100644 index 0000000..b2f60d0 --- /dev/null +++ b/nachlass/collected_dew_materials/2011-2019/2015-aug10.tex @@ -0,0 +1,7575 @@ +% 2015 upstairs aug 10 4.2 pm SUNY + +%% 2015 home % august 2 8.1 pm while listenihng to BobbyLee DoWap + +%% 12.45 appointment nicoloson + + % 2015 july 4 3.4 am after spell 10.1 am after sinatra + + % 2015 july 2 3.15 pm + +%% 2015 july 2 2.50 pm upstairs + +%% 2015 july 1 10.30 am downstairs + + + +%% notarized notes 2015 april 2 6.3 am april 4 notarize again + +%% home 2014 feb 8 1.15am (new email address) + +%% home 2015 feb6 4.3 am suny 2.40 pm home 6.15 pm + + +%% gmail dan.willard.albany and Prof.DanEdwardWillard +%% gmail password cpZ9ar48s + + +%%% SUNY JAN 11 Brad Copy 8.4 pm + +%% SUNY jan11 5/30pm spell check + +%% 2015 HOME jan 10 9.4 pm pm New Abstratct + +%% 512 6932 + +%% Towards a Restructuring of Hilbert's Consistency Program + +% www.cs.albany.edu/~dew/algor/ + +%\documentclass[11pt]{article} +%\documentclass[10pt]{article} +% \documentclass[12pt]{article} +\documentclass[11pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + + + + +% \addtolength{\oddsidemargin}{-0.95in} +\addtolength{\oddsidemargin}{-1.0in} + + + +\setlength{\textheight}{9.6 in} +\setlength{\textheight}{8.8 in} +\setlength{\textheight}{9.3 in} +\setlength{\textheight}{9.35 in} +%above too short + + +\setlength{\textwidth}{6.3 in} +%% PRINT + +\setlength{\textwidth}{6.0 in} +\setlength{\textwidth}{5.4 in} + +\setlength{\textwidth}{6.5 in} +% \setlength{\textwidth}{7.0 in} + + +% \setlength{\textwidth}{7.0 in} +% Above IDeall + + +%% \setlength{\textwidth}{6.4 in} +%%%% above brad with 11 point + +%\setlength{\textwidth}{6.0 in} +%\setlength{\textwidth}{5.7 in} + +%\setlength{\textwidth}{6.4 in} + +%\setlength{\textwidth}{5.5 in} + +%\addtolength{\topmargin}{-1.0in} +%\addtolength{\topmargin}{-0.9in} +\addtolength{\topmargin}{-0.8in} +%\addtolength{\topmargin}{1.2in} + +%\addtolength{\topmargin}{-.95in} +%\addtolength{\topmargin}{+.7in} +%%% delete above for pdf + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{dff}[theorem]{$~~~~$ Definition} +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\nop{ } +\def\nxp{ } +\def\nxp{ Here $~$NXP } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{Fact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + +%\title{Rough Summary of March 2012 Research Before I Attended +%the AMS March 17-18 Conference} + + +%% \title{ On +%% How the Revival of a Diluted +%% Version of +%% Hilbert's Consistency Program +%% %is +%% Should +%% Likely +%% Be +%% % Plausible and +%% % Veru +%% Germane +%% to Computer Science} + + + +\title{ A 2-Part Conjecture about +How a Much-Diluted but Non-Trivial +%Variant +Fragment + of +Hilbert's Consistency Program +Is +Likely +%Plausible +Feasible +for the +% Even the Challenging +Case of +Hilbert Deduction} + + + +% +% \title{ On +% How a Much-Diluted but Non-Trivial +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Is +% Likely +% %Plausible +% Feasible +% for Even the +% Challenging +% Case of +% Hilbert Deduction} +% +% %Plausible and +% % Veru +% % Germane +% %to Computer Science} +% +% +% %%% \title{\large \bf On the Revival of a Much-Diluted +% %%% but Non-Trivial +% %%% Version of +% %%% Hilbert's Consistency Program (And Its Applications +%%% for Computer Science, Mathematics and Philosophy)} + + +% \title{\large \bf On the Revival of a Modified and Diluted Version of +% Hilbert's Consistency Program (Extended Abstract)} + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{This research +was partially supported +by the NSF Grant CCR 0956495. +%Email = dew@cs.albany.edu.}} +%\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + +%\begin{abstract} +\baselineskip = 1.17 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + + + + +\begin{abstract} + +%\Large + +% \baselineskip = 1.8 \normalbaselineskip +%aaaaaaaaaaa + +\large +\LARGE + \normalsize +\large + +\baselineskip = 1.25 \normalbaselineskip + +It is well known that +the combined work of Pudl\'{a}k and Solovay \cite{Pu85,So94}, +enhanced by some added techniques of Nelson and Wilkie-Paris +\cite{Ne86,WP87}, implies + no reasonable axiom system +can verify its own Hilbert consistency, when it recognizes +Successor as a total function and treats addition and multiplication +as 3-way relations (as Example \ref{ex-2.3} will explain). +These considerations will lead us to examine +unconventional + axiomatizations +for arithmetic that continue to view addition and multiplication as +3-way relations, but +which replace the successor function symbol with an +entirely new operator, called the ``$~\theta~$'' primitive. + +\medskip + +% Our Propositions +% \ref{th-3.3} and \ref{th-6.1} +% will show this $~\theta~$ operator +% allow us + +This $~\theta~$ operator +will +allow us +to encode any integer $~n~$ by a term $~T_n~$ +whose length will exceed the $O[~$Log$(n)~]$ length of a +binary encoding +only by the +relatively + small magnitudes formalized by +Propositions +\ref{th-3.3} and \ref{th-6.1}. +This +paradigm will be +% issue is +%will be +significant because the combination of +our Appendix A and prior published results in \cite{wwapal} +will provide good reasons for conjecturing the + $~\theta~$ primitive can be used to construct logics that +can verify their own consistency under +the desired setting of +a Hilbert-styled +deductive methodology. + +\medskip + +The relationship between our new system and the aspirations of +Hilbert's consistency program will be discussed in detail. There can, +obviously, never exist a self-justifying logic that can evade the force +of G\"{o}del's Second Incompleteness Theorem in a fully ubiquitous respect. +Our conjecture will be, however, that +our methodology +implies a +{\it well-defined} +fragment of the goals of Hilbert's Consistency +program can be +% positively +achieved in a +{\it diluted +% but non-trivial} +but interesting} +respect. + + +\end{abstract} + +\bigskip +\bigskip + +\large +{\bf Keywords:} +\small +G\"{o}del's Second Incompleteness Theorem, Consistency, Hilbert's Second +Open Question, +Hilbert-styled Deduction (and its Frege-like analogs). + + + + +% \bigskip +% +% +% +% {\bf Mathematics Subject Classification:} +% 03B52; 03F25; 03F45; 03H13 +% +% +% +% \bigskip +% \bigskip + + + +% {\bf Please Cite this Paper as:} +% {\rm http://arxiv.org/abs/1108.6330}, +% appearing in Cornell Archives + + + + + + + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +%\begin{abstract} +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +\newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + +\def\gvs{ } + + +\def\gvs{ \baselineskip = 1.0 \normalbaselineskip \parskip 2pt} +\def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \baselineskip = 1.0 \normalbaselineskip \parskip 0pt} + +\def\gvs{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 7pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + +\noindent + + +\newpage + +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ } + + +\gvs + +\footnotesize + + +\def\gvs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + + \def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + +\gvs + + +\section{Introduction} +%%%%%%%%%% 1111111111111111} +\label{ss1} + + + +\gvs + +\parskip 4pt + +% hhhh +Two historic results +were established +by +%%% in + G\"{o}del's +millennial +%centennial +% 1931 + paper \cite{Go31}. The First Incompleteness +Theorem +showed there existed no decision procedure +for identifying the true statements of Arithmetic. +%G\"{o}del's +Its Theorem XI, +later known as the ``Second Incompleteness +Theorem'', +%, +%appearing in G\"{o}del's millennial paper \cite{Go31}. +demonstrated +that +no extension +of +% axiom systems, +% roughly corresponding to +the + Russell-Whitehead Principia Mathematicae formalism +% $\, P \,$ +can +% could + verify +its own consistency. + G\"{o}del's +two +observations +% Theorem XI +were historic +mainly because they + demonstrated, unequivocally, +that the +initial +objectives of Hilbert's Consistency +Program were too far-reaching. +Thus at best, only a +% very +sharply curtailed +form of Hilbert's goals +would be +% was +plausible. +This fact was further reinforced by a new version of the +Second Incompleteness Theorem, due to +the combined work of Pudl\'{a}k and Solovay \cite{Pu85,So94}, +enhanced by some added techniques of Nelson and Wilkie-Paris +\cite{Ne86,WP87}. + +%plausibly feasible +%from Theorem XI's perspective. + +Within these curtailed limits, we have published since 1993 +a series of articles +\cite{ww93}-\cite{ww14}, +outlining generalizations of the Second Incompleteness +Theorem and +its +sometimes-feasible +% plausible + boundary-case exceptions. +% that were formally feasible. +Pavel Pudl\'{a}k +examined +%in great detail, +% the preprints +an early preprint + of +our +article \cite{wwapal} +and suggested +\cite{Pupriv} +%that +we +consider attempting to hybridize +its formalism with some of +Ajtai's observations about + about +the Pigeon Hole effects +\cite{Aj94}. +The Section 6 of + \cite{wwapal} +did subsequently +formalize one type of response to +Pudl\'{a}k's insightful observation. +Our new results in this current paper will examine +this topic +from yet another perspective. + +The +particular + goals in the current paper will transgress +significantly + beyond our earlier research in +\cite{ww93}-\cite{ww14}. +(The latter focused on examining generalizations and boundary-case +exceptions for the Second Incompleteness Theorem +that +% were formally proven feasible). +viewed +roughly, at least, addition from a traditional perspective.) +Our new +Propositions +\ref{th-3.3} and \ref{th-6.1} +will explore the properties of an +entirely unconventional methodology for constructing +the foundations of integer arithmetic (which does not use +any of +the + traditional +function symbols +% of +for +%formalizing the +%conventional primitive operations of +successor, addition and +multiplication +as primitive + operations). + +This topic +will +have interesting +philosophical implications and +% also +lead to +our conjecture +% +% be +% interesting unto itself, +% from a +% solely +% %purely +% philosophical perspective. +% We will also conjecture +% that +% it +% will +% provide a machinery for reviving a +% % {\it VERY VERY +% +that a +{\it much-diluted} but +non-trivial fragment of Hilbert's Consistency Program +is plausible. + +%More precisely during our discussion of axiomatizations for +%integer arithmetics, + +During our discussion. +%% the symbols + $Add(x,y,z)$ and $Mult(x,y,z)$ + will +denote +two +3-way predicate symbols +specifying +that +$x+y=z$ and +$x*y=z$. +Also, let us say +%that +an +axiom +system +%basis + $\, \alpha \,$ +{\bf recognizes} +successor, + addition and multiplication +as {\bf Total Functions} if +%%%%%%%%% $\, \alpha \,$ +it +can prove +\eq{totxtefs} - \eq{totxtefm} +as theorems. + +% {\small +{\vspace*{- 0.6 em} +{ +%\small +\beq +\label{totxtefs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totxtefa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totxtefm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } +} + +\vspace*{- 1.4 em} +\noindent +Our axiomatizations for integer arithmetics +%in the current article +will differ from +their conventional counterparts +{\it by neither +possessing} an ability to prove the totality statements +in Lines +\eq{totxtefs} - \eq{totxtefm}, +{\it nor +containing} function symbols for +formalizing +the traditional addition, multiplication and successor operations. +%%% nor recognizing the validity of the identities +% +% which state that these primitive +% are ``total functions''. +% +Instead, we will rely upon an entirely +different type of primitive function symbol, called the ``$~\theta~$'' +operator, to construct the endless sequence of integers +$~3,4,5, ~...~$ from the +three initial starting constants of 0, 1 and 2. + +Its unorthodox +% This alternative +means for constructing the set of non-negative integers +%% in an unorthodox manner +will be a curious philosophical development, +unto itself, +apart from +its +% the +surprising implications +% it will have +about a +possible + conjectured +revival of a {\it much-diluted} but non-trivial +variant +%form of cousin +of Hilbert's Consistency Program. + +The reader should be forewarned +that this article will not provide a proof of its main +2-part +conjecture. +% A later section of this article +We + will +% later +explain +why +% how +our +conjecture is likely correct, +%We consider it 99 \% +%probable that Section ???'s conjecture is correct, +but its proof +is +almost certainly +% be +% much +too +long to fit into +%% +%%for it to be practical to provide +%%within the space of +%% +a +% one +single +% short +%abbreviated +paper. +% % +Our +% This +conjecture +%It +will suggest +% that + a +%% +%%(or even 50) pages +%%The goal of this article +%%will be to stimulate interest +%%in +%% +perhaps +5-10 \% +fragment of the goals of Hilbert's consistency program +can be positively achieved, +%but +in a context where +the +Incompleteness Theorem +precludes, definitively, +a more +ambitious project. + + + +% in a context where +% the +% % G\"{o}del's +% Incompleteness Theorem +% %definitively establishes that +% % clearly +% precludes +% a more ambitious project. + + + + +%The discourse in t + +This article +%has been carefully composed +%so that it +can be +read + without +% first +examining any of our previous +papers. If a reader +does wish to skim +one of our earlier +articles, +% before the current article, +we recommend +Sections 3 +\& 4 + of \cite{wwapal} +be skimmed +(in a context where the +subsequent +sections +% portions +of \cite{wwapal} +%will be +are +%are fully +unrelated to our +% chief +conjecture). + +% +% our recommendation is that +% Section 3 of \cite{wwapal} +% be skimmed +% $~---~$ +% in a context +% where the subsequent sections of \cite{wwapal} +% are unrelated to our main theorem and +% can +% be +% entirely +% omitted. + + + + +%% +%% In a context where I will be submitting this paper for publication +%% shortly before my 67-th birthday, the reader should be forewarned +%% that this article will not provide a formal proof of the main +%% conjecture that it will +%% propose. +%% We consider it 99 \% +%% probable that Section ???'s conjecture is correct, +%% but its proof +%% looks too tedious and long for it to be practical to provide +%% within the scope of this 25-page paper. +%% The goal of this article +%% will be to stimulate the interest +%% of a new generation of researchers, +%% who consider our new formalism and its relationship to +%% Hilbert's Year-1900 Second Open Question to be of interest. +%% + +\section{Returning to the 1931-1939 Period} +\label{ss2} + G\"{o}del's +Second Incompleteness Theorem +was published in two +quite different + forms during the +1931-1939 period. +Its initial 1931 variant, formalized by Theorem XI +in G\"{o}del's millineal paper \cite{Go31}, +% +% +% Its Theorem XI, +% later known as the ``Second Incompleteness +% Theorem'', +% %, +% %appearing in G\"{o}del's millennial paper \cite{Go31}. +% +demonstrated +that +no extension +of +% axiom systems, +% roughly corresponding to +the + Russell-Whitehead Principia Mathematicae formalism +% $\, P \,$ +could +% could + verify +its own consistency. +The widely quoted more general +result, that +every consistent r.e. extension + of Peano Arithmetic must +be unable to prove a theorem affirming its +own consistency, +was +first +published +%% +%% (see \footnote{ Boolos states in \cite{Bool} +%% that it has been open to scholarly debate +%% whether or not the 1939 +%% Hilbert-Bernays generalization of the Second Incompleteness Theorem +%% is or (is not) a straightforward generalization of +%% G\"{o}del's initial result} ) +%% +in the 1939 edition of the +the Hilbert-Bernays +textbook \cite{HB39}. It has been considered +to be the definitive demonstration of the broad reach of +the Second Incompleteness Effect. +It also established, beyond any reasonable doubt, that any type +of formalism possessing a conventional knowledge of its own consistency, +must rely upon a +foundational structure + fundamentally different from Peano Arithmetic. +(This is because the +Hilbert-Bernays +textbook formalized the forerunner of +what has now been known as the +Hilbert-Bernays Derivability Conditions \cite{HB39,HP91,Lo55,Mend}, +as a mechanism for +% foreseeing +envisioning +the +astonishing +broad generality of the +Second Incompleteness Effect.) + + +It is, thus, fascinating that Hilbert, +as the co-author of +an important +%very +% historic +generalization of the Second Incompleteness Theorem, +never withdrew the +% chose to never fully withdraw his +1926 justification + \cite{Hil26} +for his consistency program: +\begin{quote} +$*~$~ +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding itself.''} +\end{quote} +Indeed, +%Instead, +Hilbert +always insisted that some +special new formalism would at +least partially vindicate the +prior +%initial + goals of his +consistency program. +He thus arranged to +have its often-quoted +motto +({\it ``Wir m\"{u}ssen wissen---Wir werden wissen''} ) +%of his +%nevertheless, +engraved on his tombstone. + + +%Moreover, it + +It is +also +known +\cite{Da97,Go5,Yo5} +that G\"{o}del +was +doubtful about the generality of the Second Incompleteness +Theorem for at least two years after its publication. +He thus inserted the following +cautious caveat into +his famous +1931 +millennial +paper \cite{Go31}: +% whose closing section +%%% +%%% One of the closing paragraphs of +%%% \cite{Go31} +%%% thus +%%% included +% +% +%%% contained the following cautious disclaimer: +%caveat: +\newpage +\begin{quote} +\it +%\baselineskip = 1.0 \normalbaselineskip +$~**~~$ +``It must be expressly noted that +Theorem XI +%'s incompleteness result +(e.g. the Second Incompleteness Theorem) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and {\it there might +conceivably be finite proofs} which cannot +be stated in P or in ... '' +\end{quote} + + +The +% above 1931 +statement $**$ has +had +%been subject to +numerous +%many +different +interpretations +\footnote{ +Some +scholars +have interpreted +$\,**\,$ +as +%as, possibly,' +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialetica interpretation.}. +All + G\"{o}del's +biographers +\cite{Da97,Go5,Yo5} +%%%have +noted +his +% that G\"{o}del's +initial intention +was +to +establish +%achieve +Hilbert's proposed objectives, before +he proved +%proving +% G\"{o}del proved +a result +% +% however, +% %%%%%his +% G\"{o}del +% did originally +% seek +% % goal was +% to +% establish +% %achieve +% Hilbert's proposed objectives before +% proving +% % G\"{o}del proved +% a result +% +leading +%that led +in the opposite direction. +Yourgrau \cite{Yo5} +records +%furthermore, + how +von Neumann +surprisingly +%did +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive +%%% achievement of a' + termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +It is known + G\"{o}del +began to +more fully +endorse +the Second Incompleteness +Theorem +during a 1933 +%% Vienna +lecture \cite{Go33}, +and he +% told biographers he +completely embraced it +after learning about Turing's work +\cite{Tur36}. + + +Our research +in \cite{ww93}-\cite{ww14} +%has been +is +related to issues +%analogous + similar +to those +%that were +raised by Hilbert and +G\"{o}del +in + statements $*$ and $**$. +This is because it is counter-intuitive and awkward to +%presume that +explain how +human beings can maintain the +psychological drive and +needed energy-desire to cogitate, without +being stimulated by an instinctive faith in their own +consistency (under a definition of +% formal consistency +such +% this concept +that is suitably +gentle and +% delicate +soft + to +be consistent with the +Incompleteness Theorem's requirements). + +% preclude a violation of the +% restrictions imposed by the Incompleteness Theorem). + +Accordingly, our research in +\cite{ww93}-\cite{ww14} +has explored both generalizations and +boundary-case exceptions of the Incompleteness Effect, so as +to determine what type of boundary-case evasions are permitted. +Our prior research in \cite{ww93}-\cite{ww14} +had used mostly cut-free forms of deduction to +evade the +restrictions imposed by the +Second Incompleteness Effect. The current article will instead +focus on more pristine Hilbert-Frege methods of deduction. +They are likely to support an evasion of the Second Incompleteness +Effect when our axiom systems replace the traditional +growth properties of the addition, multiplication and successor +function symbols with our new $~\theta~$ primitive. + +The motivation for this replacement will be +explained during the next section of this article. +It is needed +essentially +because +a + version of the Second Incompleteness Theorem, +due to the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, +%will show +demonstrates +that +if an axiom system $~\alpha~$ +proves any +of \eq{totxtefs} - \eq{totxtefm}'s totality statements +then it is incapable of confirming its own consistency +under a Hilbert-style deductive method. + + + + + +\smallskip + +Our results will suggest it is possible to obtain a +{\it part-way 5-10 \% +positive} interpretation +for what +Hilbert and G\"{o}del +were +seeking +% a Consistency Program +to establish +%% seeking to accomplish +% contemplating +in their +statements +$*$ and $**$, within a context where +it is known that the +Second Incompleteness Effect precludes a full achievement of +%these +Hilbert's +objectives +from ever transpiring. +The last five minutes of +a recent 60-minute YouTube +presentation + by Harvey Friedman +\cite{Fr14}, +entitled the +{\it ``Blessing and Curse of Kurt G\"{o}del''}, +suggested that it is +%the themes of Hilbert and G\"{o}del's +%remarks $*$ and $**$ by indicating that +%it is +interesting to explore futuristic partial +boundary-like evasions of the Second Incompleteness Theorem, +despite the stunning strength of +G\"{o}del's result. +It is within this context where our proposed use of a new +$~\theta~$ primitive +symbol to replace the growth properties +of the traditional addition, multiplication and successor function +symbols may be of potential interest. + +The development of our $~\theta~$ primitive +was partially influenced by a private email +communication +we had received +from +Pavel Pudl\'{a}k \cite{Pupriv}, +as Sections 3-4 shall explain. +We also emphasize that the conventional interpretation of +the Second Incompleteness Theorem, as precluding +Hilbert's Consistency Program from ever achieving its initially +specified objectives, is certainly correct. +Our only caveat is that the latter should not lead one +to +ignoring the role that a +human's instinctive faith in his/her's internal +consistency +%crucially stimulates and motivates +plays in stimulating and motivating +human cognition. +% humans to cogitate. +% +% crucially +% gain the +% motivation for stimulating cogitation. +It is +from this +special +perspective where our prior research and +new 2-part conjecture +will +% does +suggest that +an approximate +%at least a +5-10 \% +fragment +% fraction +of what Hilbert and G\"{o}del +%suggested in +had +sought +in $*$ and $**$ +%could +should be + plausibly +%is +%% be formally + feasible. + + + +\gvs + +\section{Motivation for Research and Background Notation} +% 222222} +\label{ss3} + + +%%! +%%! This article will be written in a style so that its +%%! overall theme (if not full details) +%%! should become +%%! {\it quickly} comprehensible to a reader who has +%%! examined +%%! only +%%! one of the +%%! % introductory +%%! logic textbooks by say Enderton, +%%! Fitting, H\'{a}jek-Pudl\'{a}k, +%%! Mendelson +%%! or Papadimitriou \cite{End,Fi96,HP91,Mend,Papa}. +%%! %% +%%! %% We will rely mostly upon the +%%! %% precise +%%! %% deductive calculi notation employed +%%! %% in Section 2.4 of Enderton's textbook, +%%! %% but any of +%%! %% the +%%! %% similar +%%! %% Hilbert-style deductive calculi of +%%! %% H\'{a}jek-Pudl\'{a}k, +%%! %% Mendelson +%%! %% or Papadimitriou \cite{HP91,Mend,Papa}. +%%! %% will also be suitable for achieving our results. +%%! +%%! %% +%%! %% +%%! %% ( Papadimitriyou's textbook +%%! %% generously states it employs a deductive notation +%%! %% that +%%! %% has +%%! %% stemmed from its predecessor in +%%! %% Enderton's textbook.) +%%! +%%! + + + +%% In order to make our +%% results +%% %research +%% apply to the +%% formalism + +It is helpful to employ a flexible vocabulary so +% that our +our +results +will apply +%research +%to the +%formalisms +to any of the +%% +%% accessible to +%% some +%% readers who are acquainted with only one of the +%% +textbook +formalisms of +% settings outlined by +% +say +Enderton, +Fitting, H\'{a}jek-Pudl\'{a}k, +or Mendelson +\cite{End,Fit,HP91,Mend}. +% +% , +% %% or +% %% Papadimitriou +% %% \cite{End,Fit,HP91,Mend,Papa}, +% %% +% %% +% %the widest +% % possible +% %audience, +% it is +% helpful +% % useful to +% use +% %employ +% a +% % very +% flexible +% vocabulary. +% %% +% %%that +% %%allows a reader to +% %%%quickly +% %%%translate results +% %%traverse +% %%from +% %%one textbook to another. +% % Therefore, let us define a +Let us +% thereby +call an +ordered pair $(\alpha,d)$ a + {\bf ``Generalized Arithmetic''} +% therefore +iff its +% first and second +two components +%% +%% Each of the +%% textbooks \cite{End,Fi96,Mend,Papa,HP96} have +%% employed +%% substantially +%% different variants of Basis and +%% Deductive-Apparatus structures. +%% +are +% described +formalized +% defined +as below: +%% +%% Their +%% definitions in +%% Items (1) and (2) +%% %simple +%% %%%definitions of these two notions +%% %given below, +%% allow one to easily translate +%% %theorems +%% formalisms +%% % methodologies +%% from +%% one textbook +%% % source +%% to another: +%% +%% %\njp +%% % \newpage +%% \parskip 2pt +\bee +\item +The {\bf ``Axiom Basis''} $~\alpha~$ +for an arbitrary arithmetic +shall be defined as +the set of +{\it proper axioms} employed by the +formalism $( \alpha , d )$. +\item +An arithmetic's {\bf ``Deductive Apparatus''} $~d~$ +is defined as +the +{\it combination} of its formal rules for inference +and +%its +the + built-in + logical axioms ``$~L_d~$'' +% (that are +% implicitly +employed by these rules. +\ene + +%%%\item +%%%The term {\bf ``Deductive Apparatus''} $~d~$ will +%%%refer to the +%%%{\it combination} of the rules of inference +%%%used by an arithmetic and its +%%%the logical axioms ``$~L_d~$'' that +%%%render meaning to +%%%%are an automatic part of +%%%$~d\,$'s machinery. + + +\begin{exx} +\label{ex-2.1} +%\label{ex-basis} +\rm +This notation +allows one to + conveniently separate the logical axioms +$~L_d~,~$ associated +with $( \alpha , d )~$, from + $\, \alpha \,$'s + ``basis axioms''. +%basis axioms +It also allows one to isolate +and compare +% , conveniently, +various +apparatus techniques, +%technique, +% employed in the exact formalisms +including the + $~d_E~$, + $~d_M~$, + $~d_H~$, +and $~d_F~$ +methods +%that we will now define: +defined below: +%% +%% Three +%% examples of this are illustrated below, +%% in a context where +%% are the deductive apparatus machineries defined +%% in Enderton's, Mendelson's and Fitting's textbooks +%% \cite{End,Fi96,Mend}. +%% +\bed +\item[ i. ] +The $~d_E~$ apparatus, +formalized in +\textsection + 2.4 of Enderton's textbook, +% will +uses only modus ponens +as a rule of inference. +The latter will be accompanied +by +a +4-part +system of + logical axioms, +called $~L_{d_E}~$, $\,$ to endow + $~d_E~$ +with an +ability to support +% apparatus +% agility so that it supports +%can satisfy +%the analog of +G\"{o}del's Completeness Theorem. +%% ' +%% (similar to other' +%% % full-scale ' +%% deductive methodologies).' +%% +%%%% +%%%% (Papadimitriyou's +%%%% % in-depth exploration +%%%% textbook \cite{Papa} about +%%%% % examination of +%%%% the Logic-Computer interface +%%%% relies +%%%% explicitly +%%%% upon +%%%% % uses +%%%% Enderton's +%%%% % underlying +%%%% apparatus mechanism.) +%%%% +%% %uses +%% relies upon +%% Enderton's +%% approach $d_E$.) + +%% %relies +%% does rely +%% upon +%% Enderton's apparatus +\item[ ii. ] +The $~d_M~$ +apparatus in +\textsection 2.3 +of Mendelson's textbook +and the $d_H$ + apparatus +in \textsection 0.10 +of the H\'{a}jek-Pudl\'{a}k's + textbook +employ a more compressed set of logical axioms +than $\, d_E \,$, +but +they use +two rules of inference +(formalizing +separately + modus ponens and generalization). +%% plus a smaller set of logical axioms, which Mendelson +%% has called A1-A5. +%% Also, the $d_H$ +%% apparatus +%% on pages ???? +%% of the +%% H\'{a}jek-Pudl\'{a}k textbook +%% uses a slightly different variation of a generalization. +%% (In the end, +In the end, +% both + $~d_M~$ +and $~d_H~$ +prove the same set of theorems +as $~d_E~$ with +only minor and unimportant changes in +proof length. +\item[ iii. ] +The +``semantic tableaux'' + $~d_F~$ +apparatus in +Fitting's +and Smullyan's +textbooks +\cite{Fit,Smul} +was + the main focus of our +investigations in \cite{ww93,ww1,wwlogos,ww5,ww6,ww14}. +It will be rarely used +in the current article, +however. +Unlike + $~d_E~$, $~d_M~$ and $~d_H~$, it +employs no logical axioms. +It instead + uses a more complicated rule of inference. +This tableaux apparatus +% and also Resolution, have been + has +% been found to have many +a wide array of +applications +for automated deduction, +although it is +less efficient than + $ d_E $, $ d_M $ and $ d_H $ +in +% under +% extremal +worst-case +environments. +% settings. +%circumstances. +\ennd +\end{exx} + + +\begin{dff} +\label{def-2.2} +\rm +Each of the +% deductive +methods of + $ d_E $, $ d_M $ and $ d_H $ +have the property that if a theorem $\, \Psi \,$ +has a proof +with length $~L~$ + from an arbitrary +axiom basis $~\alpha~$ +under one of these deductive systems, +then it will have a proof from these other formalisms +with lengths bounded by Polynomial$(L)$. +The term +{\bf ``Hilbert-style''} deductive method will, +thus, refer to any deductive +% apparatus will refer to any other +apparatus $~d~$ that +employs +% similarity has its +proof lengths +% being +equivalent to within a polynomial magnitude +to +%of +the comparable proof lengths from $d_E$, $d_M$ and $d_H$ +and which +also +assures +that the proofs of any +two theorems $~\Phi~$ +and $~\Psi~$ +(under $d$ from any +axiom basis $~\alpha~$) +will +always +have +% by more than a constant factor +the sum of the lengths of the proofs +of $~\Phi \rightarrow \Psi ~$ and $~\Phi~$ +% under $~d~$ from $\alpha$ always +formally +bound the length of +$~\Psi\,$'s proof. +\end{dff} + + +\begin{exx} +\label{ex-2.3} +%\label{ex-basis} +\rm +Some added notation is + needed to +explain why +% help outline +% an important distinction between +a Hilbert style +deductive apparatus, such as $\,d_E\,$, $\,d_H\,$ + or $\,d_M\,$, should be distinguished from + $d_F$'s +``tableaux'' apparatus. +Let +% the symbols + $Add(x,y,z)$ and $Mult(x,y,z)$ +once again +% will +denote +two +3-way predicate symbols +specifying +that +$x+y=z$ and +$x*y=z$. +Also, let us recall +that +an +axiom basis + ``$\, \alpha \,$'' +is said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} if +%%%%%%%%% $\, \alpha \,$ +it +includes +\eq{totdefxs} - \eq{totdefxm} +as theorems. + +% {\small +{\vspace*{- 0.6 em} +{ +%\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } +} + +\vspace*{- 1.4 em} + +\noindent +%Then an +In this context, an +``axiom basis'' +$\alpha$ +will be called +{\bf Type-M} if it contains +\eq{totdefxs}-\eq{totdefxm} +% \ref{totdefxs}-\ref{totdefxm} +as theorems, +{\bf Type-A} if it contains +%only +\eq{totdefxs} and \eq{totdefxa} as theorems, +and {\bf Type-S} if it contains +only \eq{totdefxs} as a + theorem. +%Moreover, +Also, +$\alpha$ +%will be +is +called +{\bf Type-NS} if it can prove +none of these theorems. +%In this context, +%The +%Items (a) and (b) illustrate +%%%Below are illustrated several +%%%implications of this notation: +The implications of this notation +are formalized by Items a and b: + +%% +%% +%% , below, +%% %will +%% illustrate how +%% a +%% %% +%% %% the +%% %% prior +%% %% literature has +%% %% +%% %% +%% ``Hilbert-style'' +%% deductive apparatus, such as $\,d_E\,$ +%% or $\,d_M\,$, supports very different generalizations +%% of the Second Incompleteness Theorem +%% than $\,d_F\,$'s +%% ``tableaux-style'' apparatus: +%% +%% the prior literature most germane +%% to our current article is summarized as follows: +%% +%% +%% The relationship of these constructs to +%% self-justification +%% is explained by +%% items (a) and (b): +\bed +\item[ a. ] +The +%% +%% above +%% evasions of the Second Incompleteness +%% Theorem are known to be near-maximal in a mathematical sense. +%% This is because +%% the +%% +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, +as formalized by statement $\, ++ \,$, +%has implied +implies +no +natural +Type-S system can recognize its +own consistency +under +any of $\, d_E \,$'s, $\, d_H \,$'s +or + $\, d_M \,$'s + Hilbert-style +versions +of deduction: +\begin{quote} +{\bf ++ } +%\footnotesize + \baselineskip = 1.05 \normalbaselineskip +{\it +(Solovay's +modification +%Generalization +\cite{So94} +%1994 Generalization \cite{So94} +%of a 1985 theorem +of Pudl\'{a}k \cite{Pu85}'s formalism +with +%using +%some of +Nelson and Wilkie-Paris \cite{Ne86,WP87}'s +methods)} : +Let $ \, \alpha \, $ denote +%%! any consistent +% a logic +an axiom +basis +% axiom system +%basis system +supporting +% which contains +\eq{totdefxs}'s +Type-S statement +and +assuring +%which assures +%that +the successor operation +%always +does satisfy +both +% the axioms of + $ \, x' \neq 0 $ and +$ x' = y' \Leftrightarrow x=y $. +$~$Then $~\alpha~$ +cannot verify is +%will be unable to recognize its +%own +consistency +under any Hilbert-style +%deductive +apparatus $d$, +%whenever +if it + treats addition and multiplication +as 3-way relations, +satisfying +the usual % identity, +associative, commutative + distributive +and identity axioms. +% -axiom +% properties. +\end{quote} +Essentially, Solovay \cite{So94} +privately communicated +to us +in 1994 +%to us +an analog of $++$'s result. +%but +Many authors +have noted Solovay + has +been +%often +reluctant to publish +% several of +his +nice +privately communicated +results +on many occasions +%in several contexts +\cite{BI95,HP91,Ne86,PD83,Pu85,WP87}. +Thus, +%polished +approximate analogs of +%statement + $++$ + were explored +subsequently + by Buss-Ignjatovic, +H\'{a}jek +and +\v{S}vejdar in \cite{BI95,Ha7,Sv7}, +as well as in Appendix A of +our paper +\cite{ww1}. +Also, +Pudl\'{a}k initial 1985 article \cite{Pu85} +% implicitly +captured +the majority +%most +%%% much +of $++$'s +main +% underlying +formalism, +and +Friedman did some +related work +% in +\cite{Fr79a}. + +\item[ b. ] +Part of what makes +the Pudl\'{a}k-Solovay discovery in + $++$ interesting is that +\cite{ww1,ww5,wwapal} +%Willard +developed two +% separate +methods for +basis systems +%%% $\alpha$ +to confirm their own consistency, whose +natural hybridizations is precluded by $++$. These results involve +either a Type-NS +% basis +system +\cite{ww1,wwapal} + verifying its own consistency +under +any of the + $d_E$ or $d_H$ + or $d_M$'s +Hilbert-style methods, +or a Type-A +%basis +system \cite{ww93,ww1,ww5,ww6,ww14} +verifying + its +% own +self-consistency +under $d_F$'s tableaux +%deductive +apparatus. +Also, Willard \cite{ww2,ww7} observed how one could +refine $++$ with Adamowicz-Zbierski's +methodology \cite{AZ1} to show + Type-M systems +cannot recognize their semantic tableaux consistency. +\ennd +\end{exx} + +The roles of +% Observations +Items (a) and (b) +in our research +%from the current example, +will become more evident +as this article progresses. +Essentially, our +prior research +% , +% best summarized in \cite{ww14}, +% has +had focused mostly on Type-A arithmetics +that could verify their consistency under either semantic +tableaux deduction or some near-cousin of this concept +(as was explained in \cite{ww14}'s short 16-page summary +of \cite{ww93}-\cite{ww9}'s results). +The +new +$~\theta~$ operator, defined in the next section, will +raise the question about whether a +surprisingly powerful class of new Type-NS systems may +satisfy an analogous +property in the context of +Definition \ref{def-2.2}'s more pristine +Hilbert-style methodology for deduction. + + +% have +% a similar property.(The article \cite{ww14} offers a nice 16-page summary +% of our prior results +% \cite{ww93}-\cite{ww9} +% about Type-A arithmetics, but +% none of these results will +% be +% needed +% % to be examined +% during our current article's exploration of +% the properties of the new % +% $~\theta~$ operator.) + +% It will be unnecessary for a reader to examine any of our + + +%% % year-2014 +%% Wollic-2014 paper \cite{ww14} +%% summarized and extended our +%% results about +%% semantic tableaux consistency. +%% % and this +%% The current +%% new +%% year-2015 +%% paper +%% will, now, +%% explore whether +%% systems can +%% also corroborate +%% their Hilbert-styled consistency +%% under certain well-defined circumstances. + +%% (and seek to explore the restrictions $++$ imposes upon +%% Hilbert-styled deduction). + +% +% (The latter topic +% % is +% %very +% %entirely +% %different +% differs +% from the former +% because +% constraint $++$ +% applies only +% to its +% particular +% domain.) + +%in the second context.) + + +%% The constraints imposed by $++$ +%% are challenging +%% because Type-NS arithmetics + +This +topic +% subject +is challenging because +essentially all +Type-S arithmetics +are forbidden by $++$ from +verifying the consistency +of their own Hilbert-styled deductions +(and +conventional forms of +Type-NS formalisms are +typically +% usually +quite weak). +%% +%% (Thus, our efforts +%% to design +%% self-verifying systems +%% must focus on +%% Type-NS arithmetics). +%% +Our new Propositions \ref{th-3.3} and \ref{th-6.1} +will suggest a +plausible partial +solution to this +problem by +% daunting challenge by +illustrating how +an {\it unusual class} of +Type-NS arithmetics will be able to construct the +full set of integers $~0,1,2,3,...~$ by finite means +{\it without using} +any of the successor, addition or multiplication +function symbols. +As a result, we will suggest +a +% a {\it part-way} +% that an interesting +non-trivial +(although diluted) +fragment +of what Hilbert +and G\"{o}del +% sought +% referred to +sought +in +statements +$*$ and $**$ +% will +% be formally achieved +% become tempting +is likely +% be +viable +under Definition \ref{def-2.4}'s formalism. + + + +% +% This +% topic +% % subject +% is challenging because +% $++$'s +% Type-NS arithmetics +% % obviously +% have sharply circumscribed powers +% (demonstrating the +% broad reach +% % ubiquitous nature +% of +% %the Second Incompleteness Theorem's reach). +% G\"{o}del's +% second theorem). +% %% +% %% The current article will +% %% show, however, that +% %% some Type-NS arithmetics are +% %% substantially +% %% stronger than previously +% %% anticipated +% %% (and they will have useful applications +% %% in +% %% computer science settings). +% %% +% %% Thus in a context where +% %% the power of both G\"{o}del's initial +% %% Second Incompleteness Theorem and $++$'s strengthening of it +% %% are stunning +% %% and +% %% have pervasive implications, +% %% we will show that a +% %% {\it partial-and-much-less-than-full} +% %% fragment +% %% of what Hilbert +% %% desired +% %% in statements $*$ and $**$ an be +% %% positively achieved. +% %% +% The current article will +% %show, however, +% suggest, +% however, +% % that +% some Type-NS arithmetics are +% % , however, +% % significantly +% %% substantially +% more far-reaching +% than +% previously +% anticipated. Thus, a +% % well-defined +% {\it +% partial but non-trivial} fragment of what Hilbert +% and G\"{o}del +% % sought +% % referred to +% anticipated +% in +% statements +% $*$ and $**$ will +% % be formally achieved +% % become tempting +% look +% % be +% viable +% under Definition \ref{def-2.4}'s formalism. + + +\begin{deff} +\label{def-2.4} +\rm +Let +$~\alpha~$ again +denote an axiom basis +and $~d~$ +designate + a +deduction apparatus. +Then the ordered pair + $~( \alpha , d )$ +will +be called {\bf Self Justifying} when: +\begin{description} +% \xxitch +% \small + \item[ i ] one of $ \, \alpha \,$'s theorems +(or at least one of its axioms) +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +\end{deff} + + +\begin{exx} +\label{ex-2.5} +\rm +Using +Definition \ref{def-2.4}'s + notation, our research +in +\cite{ww93,ww1,ww5,wwapal,ww9,ww14} +developed +%\cite{ww93}-\cite{ww14} +%has consisted of +% developing +ordered pairs $~( \alpha , d )$ +that +were +%are +``Self Justifying''. +It +% has +also explored +how the Second Incompleteness Theorem formalizes +limits beyond which such formalisms cannot transgress. +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +% second +%%% axiom +system $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +condition. +%of +% this definition. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +%%% +%%% the following +%%% %%% added +%%% further +%%% sentence, +%%% called +%%% %%% that we call +%%% {\bf SelfRef$(\alpha,d)~$}: +\begin{quote} +%\xxitch +$\oplus~~~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of +the + axiom system $\, \alpha \, $ +with {\it this} +sentence ``SelfRef$(\alpha,d) \,$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +discussed +how +to +encode +approximate + analogs of this +{\bf $\,$``SelfRef$(\alpha,d)$''$\,$} +statement. +%%% SelfRef$(\alpha,d)$'s +%%% self-referential statement. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii of self-justification's +definition. +This is because if the +% ordered + pair $(\alpha,d)$ is too strong +then a classic G\"{o}del-style diagonalization argument can +be applied to the axiom system +$\alpha^d~~=~~ \alpha \, + \, $ SelfRef$(\alpha,d)$, +where the added presence of the statement +SelfRef$(\alpha,d)$ +will cause this extended version of +$\, \alpha\,$, ironically, + to + become automatically inconsistent. +Thus, the machinery of the sentence +``SelfRef$(\alpha,d)$'' is relatively easy to +encode, +%make well-defined +via an application of the Fixed Point Theorem, +but it +is +ironically +%%%%%{\it most often +{\it +typically +%usually +useless! } +\end{exx} + +%\newpage + + +Unlike our earlier work, which focused + mostly around a +semantic +tableaux apparatus for deduction, +the current paper +will +explore +%paper will explore +\dfx{def-2.2}'s +more pristine Hilbert-style methodologies. +%% +%% analogous to +%% Example +%% \ref{ex-2.1}'s +%% textbook +%% methods. +%% +% of +% $d_E$, $d_M$ +% and $d_H$. +%%! +%%! in +%%! the textbooks by +%%! Enderton, H\'{a}jek-Pudl\'{a}k, +%%! Mendelson and Papadamiriyou \cite{End,HP91,Mend,Papa}. +There are, of course, many types of generalizations +of the Second Incompleteness Theorem known to +arise in Hilbert-like settings +\cite{BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Lo55,Kr87,Kr95,Pa71,Pa72,Pu85,Pu96,So94,Sv7,Vi5,WP87,ww1,wwapal}. +Each such +generalization +formalizes +a paradigm where +self-justification is infeasible +under a Hilbert-style apparatus. + +\smallskip + +Our +main +prior research about +%%! +%%! main work about arithmetics displaying knowledge +%%! about their +%%! +Hilbert consistency appeared in \cite{wwapal}. +Its ISCE$(\beta)$ +formalism could recognize its own +Hilbert consistency and +%%could +prove analogs of any +r.e. +extension $~\beta$ of +Peano Arithmetic's $\Pi_1$ theorems. +It unfortunately required +the use of an infinite number of constant symbols, with + ISCE$(\beta)$ +using one built-in constant +symbol +$~C_i~$, +for each power of 2. An alternative in \cite{wwapal}, +called ISINF$(\beta)$, required use of only three constant symbols, +but its proof lengths were impractically long. + + +%%! required +%%! % in excess of +%%! an impractical +%%! $O(N)$ length proof to construct an integer $N$. + +\smallskip + +Prior to \cite{wwapal}'s publication +Pavel Pudl\'{a}k +\cite{Pupriv} +examined this article and asked +us +the crucial question about +whether +we could improve +upon ISINF's properties + by using Ajtai's observations +\cite{Aj94} + about +the Pigeon Hole principle. +%% +%% Sam Buss \cite{Bupriv} also asked us +%% a +%% %similar +%% related +%% question +%% (during a more +%% informal +%% %abbreviated +%% conversation). +%% %(in a more informal manner). +%% +Our prior +partial +answer to Pudl\'{a}k's +question +was offered +%issue +%appeared +%in Sections 6 and 7 of \cite{wwapal}. +in Sections 6 of \cite{wwapal}. +A very different type of reply will be offered +% +% We will offer +% % an alternate much +% a +% % much +% more sophisticated +% and different +% type of reply +% % analysis +% % formalism +% +in +the current +paper. +%article. + + +%%! an abbreviated version of a similar +%%! question after we verbally summarized to him \cite{wwapal}'s +%%! planned results. + +% in 1997. + + +\begin{deff} +\label{def-2.6} +\rm +Throughout our discussion, a +% A +primitive $~F~$ will be called a +{\bf Q-Function} +iff is is +sufficiently ambiguous +for there to exist an UNCOUNTABLY infinite number of +different +{\it +plausible sequences} of +ordered pairs in expression \eq{wow} where +$~F(i)=a_i~$ is allowed as a +% logically +permissible +%plausible +%formalization +representation of $F$ +under some fixed axiom system $~\gamma~$. +\begin{equation} +\label{wow} + (0,a_0) + ~,~ (1,a_1) ~,~ (2,a_2) ~,~ (3,a_3) ~,~ (4,a_4)~ ... +\end{equation} +\end{deff} + +\gvs + +%It turns out most + +Most +Q-Function symbols are +unsuitable for +analyzing +%producing a positive resolution to +Hilbert's Second Open Question or most +issues in +% other prominent +% % mathematical +% questions within +mathematics. + This is because the +presence of an + uncountably + infinite + number of +different +plausible sequences, +formalized by Line +\eq{wow} for solving +$~F(i)=a_i~,~$ is +typically more of a burden than a benefit. +An exception to this general rule +of thumb + will be +provided by + the next +section's $~\theta~$ operator. +It will be germane to + $\, ++ \,$'s generalization of the Second Incompleteness +and suggest a mechanism whereby an efficient form of +``Type-NS''self-justifying +arithmetic +can recognize its own Hilbert consistency, +without +viewing +% recognizing +%%%%%% any of addition, multiplication and +even +successor as +a total function. + + +%% +%% It will enable us to develop ground terms for formulating +%% any integer $~N~$ using +%% $O\{~$Log$(N)~\}~$ +%% logical symbols, +%% in a context where +%% {\it none of the} addition, multiplication or +%% successor function symbols are employed +%% by $~\theta \,$'s analog of an +%% $O\{~$Log$(N)~\}~$ +%% lengthed +%% binary-like +%% encoding +%% for integers. +%% % of an integer as a binary number. +%% This alternate +%% $O\{~$Log$(N)~\}~$ +%% format +%% for encoding an integer $~N~$ is +%% potneitlally useful +%% %fascinating +%% because +%% Item $\, ++ \,$'s generalization of the Second Incompleteness +%% Theorem, due to the +%% combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +%% \cite{Ne86,Pu85,So94,WP87}, +%% does not preclude evasions of its invariant when a +%% ``Type-NS'' +%% axiom system ceases to recognize +%% addition, multiplication and +%% successor as total functions. + + + +% Most +% Q-Function symbols are +% unsuitable for +% analyzing +% %producing a positive resolution to +% Hilbert's Second Open Question. +% A special class of Q-Functions +% % , however, +% will +% walk through +% Cantor's +% % the +% world of the Uncountably Infinite +% %% in a more +% in an +% enticing manner, +% however. +% %% however. +% %It +% They +% will suggest a +% %%% much +% {\it diluted but non-trivial} +% variant +% of the aspirations +% which +% %that +% Hilbert and G\"{o}del +% expressed +% in +% $*$ and $**$ +% are +% %applicable to +% feasible under +% % plausible in the context of +% Hilbert Deduction. +% (This +% % Q-function a +% analysis will be +% %%%%%%%%%%%%%% quite +% % entirely +% different +% from +% \cite{ww14}'s +% examination of +% %formalisms +% %the formalisms appearing in our Wollic-2014 paper +% %%% because +% %it will replace +% semantic tableaux deduction +% because it will +% apply +% uniquely +% to +% Definition \ref{def-2.2}'s +% ``Hilbert-styled'' deduction methods.) + + +%%% is replaced by the more efficient +%%% %with the more pristine +%%% Hilbert-style deductive methodology.) + +%can be achieved. + + +%%! This will suggest +%%! a {\it limited} +%%! and very-much {\it down-sized} version of the formalism that +%%! Hilbert +%%! advocated +%%! is +%%! likely +%%! %probably +%%! feasible +%%! and +%%! germane to +%%! the +%%! future +%%! % computational +%%! needs of automated +%%! theorem provers. +%%! Our +%%! exploration +%%! will also provide a +%%! % quite +%%! new interpretation of the +%%! meaning of the statements $*$, $**$ and +%%! $***$. + +% by Hilbert and G\"{o}del. + +\vspace*{- 0.6 em} + +% \section{Revisiting a World which Hilbert called +% {\it ``Cantor's Paradise''}} + +\section{Main Formalism} +\label{ss4} +\label{seee3} + +%333333333333333333333333333 +\vspace*{- 0.4 em} + +% OLD Title was {\it Notation and Basic Concepts} + +Throughout this +paper, +%article, +a function + $\, H \, $ +will be called + {\bf Non-Growth} +iff +$ H(a_1,a_2,...a_j) +\leq Maximum(a_1,a_2,...a_j)$ +for all $a_1,a_2,...a_j$. Six examples of + non-growth functions are: +\bee +\parskip 0pt +\item +{\it Integer Subtraction} +where ``$~x-y~$'' is defined to equal zero +in {the special case} where + $~x \leq y,$ +\item +{\it Integer +Division} +where ``$~x \div y~$'' equals +$~x~$ when $~y=0~$ and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise, +\item +$Root(x,y)~$ which equals $~ \lfloor ~x^{1/y}~ \rfloor$ when $~y\geq 1~$ +%% +%% and +%% it equals $~x~$ when $~y=0.$ +%% +(and zero otherwise), +\item +$Maximum(x,y),~~$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +and +\item +$Count(x,j)~~=~~$the number of ``1'' bits +among $~x$'s rightmost $~j~$ bits. +\ene +%% +%% +%% \bee +%% \baselineskip = 0.8 \normalbaselineskip +%% +%% \item +%% {\it Integer Subtraction} +%% where ``$~x-y~$'' is defined to equal zero +%% in {\it the special case} where +%% $~x \leq y,$ +%% \item +%% {\it Integer +%% Division} +%% where ``$~x \div y~$'' equals +%% $~x~$ when $~y=0,~$ and +%% it equals $~\lfloor ~x/y ~\rfloor~$ otherwise, +%% \item +%% $Root(x,y)~$ which equals $~ \ulcorner ~x^{1/y}~ \urcorner$ when $~y\geq 1,~$ +%% and +%% it equals $~x~$ when $~y=0.$ +%% \item +%% $Maximum(x,y),~~$ +%% \item +%% $ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ when $~x \geq 2,~$ +%% and zero otherwise. +%% \item +%% $Count(x,j)~~=~~$the number of ``1'' bits +%% among $~x$'s rightmost $~j~$ bits. +%% \end{enumerate} +%% +These operations were called +either the +{\bf ``Grounding''} +or {\bf ``Ground-Level''} + functions +in our articles \cite{ww1,wwlogos,ww5,ww14}. +We will +use the latter nomenclature in the current article + because the notion of a ``Ground-Level'' +function should not be confused with the very different notion +of a ``Grounded Term'' employed by Definition +\ref{def-3.4}. + +% TWO DEFS or ONE ???????? + + + +Our +starting language $L^G$ shall also contain +the +two atomic +symbols +%% relations +of ``$~=~$'' and ``$~\leq~$'' and three +built in constants symbols, $~C_0~$, $~C_1~$ and $~C_2~$, +for representing +the values of 0, 1 and 2. +Within this context, expressions +\eq{newadd} and \eq{newmult} formalize how addition and multiplication +can be encoded as two 3-way predicates, +%% in $L^G$, + denoted as +Add$(x,y,z)$ and Mult$(x,y,z)$. + +\vspace*{- 0.6 em} +\beq +\label{newadd} +z ~ -~x~~=~~ y~~~~ \wedge ~~~~ z~\geq~x +\end{equation} + +\vspace*{- 0.6 em} +\begin{equation} +\label{newmult} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x}\, k~$ +and +also +% simultaneously +having +each $ \, a_i \leq k$ \, +It will be necessary +%% for us +to employ + either an infinite number +of constant symbols or some Growth-Permitting function +so that an extension of the +language $L^G$ can construct the +full +%infinite +collection of + integers of $~3,4,5,6~....~$. + + + + +%% One awkward aspect of this notation is that +%% it provides +%% no guarantee +%% that integers larger than 2 will exist without the +%% presence of some +%% further +%% methodology for producing larger integers. + + +% +\smallskip + + +One method for resolving this problem was presented in \cite{wwapal}. +% +% It employed an infinite number of further constant symbols. The +% latter's +% ISCE$(\beta)$ +% system was +% % shown to be +% compatible with self-justification, +% but such an infinite number of constant symbols clearly trespassed on +% Hilbert's goal of using a +% %strictly +% finite-sized formalism. +% +Its ISCE$(\beta)$ axiom basis + employed an infinite number of further constant symbols. It +was +compatible with self-justification, +but deviated from +%{\it very sharply from} +Hilbert's +intended + goals +because it employed +% by employing +%an +a {\it highly awkward} +infinite number of +distinct + constant symbols. + +\smallskip + +The +% self-justifying +``ISINF'' formalism +% in +of +\cite{wwapal} +offered an alternate method for resolving this difficulty. +%% in the context of a self-justifying logic. +It +% required the use of +used + {\it only +three} constant symbols. It could prove analogs of all +of Peano Arithmetic's +$\Pi_1$ theorems, but almost all +of + its proofs +unfortunately + had lengths longer +than the number of atoms in the universe. +Most other approaches, for resolving this dilemma, +% are +were +also problematic +because the +invariant + $~++~$, +which Example \ref{ex-2.3} +attributed to the joint work of + Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris, +showed that essentially every Type-S arithmetic is unable to +recognize its +own consistency under a Hilbert-style deductive apparatus. + +\smallskip + + +The challenge posed by $++$ +is, thus, certainly formidable. +Our goal in +%the current +this +article +will be to suggest +how +%that +a Q-function primitive $F(x)$, +that has +% an extraordinarily +a deliberately +ambiguous + function definition, +can help overcome the constraints that $++$ imposes. +Such an +% ultra-ambiguous defined +unusual +primitive $~F~$ will have +an uncountable number +of vectors, analogous to Line \eq{wow}, that are permitted +solutions to +$F$'s +definition. +Our basic goal +% in this article +will be to outline +how this unusual concept is +likely germane to the +self-justifying +%% +%% why it is +%% likely such Q-functions will enable one to build +%% surprisingly efficient self-justifying logics that +%% partially (but not fully) achieve the +%% %{\it diluted portion} of the +%% +aspirations +that +Hilbert and G\"{o}del +expressed in +%statements +$*$ and +$**~$. + +\smallskip + +%\normalsize \baselineskip = 0.98 \normalbaselineskip +%\gvs + + +%% \el{wow}'s +%% dizzying +%% $\aleph_1$ distinct solutions. +%% We will traverse in the opposite direction in this article +%% because +%% Definition \ref{def-2.6} +%% %\eq{wow} +%% formalizes +%% % fascinating +%% % a possible +%% an +%% avenue +%% available +%% for evading $++$'s generalization of the +%% %Second +%% Incompleteness +%% Theorem. + +% {\it in at least a partial sense.} + + +%% +%% %They +%% This level of multiplicity will be +%% %These will turn out to be +%% useful in the present setting +%% because +%% %% +%% %% Our hypothesis is that such +%% %% solutions, while awkward and disadvantageous +%% %% in many +%% %% evident +%% %% %%%%%obvious +%% %% respects, +%% %% should not be discarded. +%% %% This is +%% %% because +%% %% +%% it +%% can +%% formalize a type of +%% allowed +%% growth-permitting function, +%% that is +%% not prohibited by $++$'s generalization of the Second Incompleteness +%% Theorem. +%% +%% + +%\smallskip + +\begin{deff} +\label{def-3.1} +\rm +Let us say +% an integer-valued +a function symbol +$F(x_1,x_2,...x_j)$ is {\bf `` 1-Definitive ''} iff it has only one +solution under its definition by an axiom system $\gamma$. +Let us call $~F~$ {\bf ``Indeterminate''} otherwise. +%(The remainder of this article +(Mathematicians +obviously typically avoid using +function definitions +%%%%%%%%%, $~F~$ +with +%that have +%%%% having +even two solutions, not to +speak of +what will be +\el{wow}'s +dizzying +quantity +of possibly +%potential +%possible +$\aleph_1$ distinct +% number of +solutions, +considered in the current article. +Our +main +conjecture will be that this unconventional +approach is +germane to the challenge posed +by $++$'s +broad-scale +generalization of the +%Second +Incompleteness +Theorem. +This is because our conjecture will be that +our proposed new $~\theta~$ +primitive + will represent +an efficient Indeterminate +function +that eschews $++$'s prohibitions.) +\end{deff} + +% helpful when addressing +% the challenge +% We will traverse in +% an unconventional +% % the opposite +% direction in this article +% because +% our conjecture will be that +% Indeterminate functions +% with $\aleph_1$ different +% allowed solutions for +% \el{wow} +% formalize +% %% +% %% Definition \ref{def-3.1} +% %% % {def-2.6} +% %% %\eq{wow} +% %% will formalize +% %% a +% %% possible +% %% %feasible +% %% %plausible +% %% +% an +% avenue +% % available +% for evading $++$'s +% broad-scale +% generalization of the +% %Second +% Incompleteness +% Theorem.) +% +% (Our conjecture in this article will be that +% %% +% %%The next two sections +% %%will explore +% %%how +% %% +% \el{wow}'s indeterminate ``Q-Function'' symbol $F$ +% %%%can clarify +% is germane to +% the +% aspirations +% that +% Hilbert and G\"{o}del +% % expressed +% stated +% in +% % statements +% $*$ and +% $** \, $, $\,$when +% one employs an +% operator +% $ \, F \, $ +% that +% owns +% % has +% $\aleph_1$ distinct +% available +% solutions). +% \end{deff} + + +%%are viable, +%%especially in an automated theorem proving setting, +%%when Ambiguous function operatives are judiciously +%%employed. +%% + +%%! +%%! can +%%! %%and germane about automated +%%! %%deduction, will +%%! % theorem proving, +%%! %computational deduction, +%%! be satisfied by a self-justifying logic that employs +%%! one +%%! %single $\aleph_1$ +%%! Growth-Permitting function $F(x)$, +%%! that is +%%! % inherently +%%! ``ambiguous'', +%%! {\it accompanied +%%! by} a finite number of non-growth primitives +%%! % {\it non-growth} +%%! $G_1,~G_1,~... G_k$ +%%! that are ``unambiguous''. +%%! +%%! It will also be explained how such results should have useful +%%! applications for automated theorem proving, even when they +%%! employ +%%! only +%%! diluted forms of self-justifying logics. + +%% +%% \vspace*{- 1.0 em} +%% +%% \subsection{Main Notation Conventions} +%% % about Cantor's Paradise} +%% % \large +%% % \baselineskip = 1.8 \normalbaselineskip +%% +%% %\vspace*{- 0.7 em} + +{\bf More Notation:} +$~$Let us say +an axiom system $~\alpha~$ +has +{\bf Infinite Far Reach} iff +it relies upon +{\it only a finite number} of +distinct constant symbols +(and/or axiom sentences) to +% but still can +prove +for each $n$ +the +\el{farreach}'s invariant. + +%for each particular integer $n$. + +\vspace*{- 0.8 em} + +\beq +%% \small +\label{farreach} +\exists ~~x~~~ \mbox{Pred}^n(x)~\geq ~1 +\enq +The ISINF axiomatic framework +from + \cite{wwapal} +was + a self-justifying +system with Infinite Far Reach. +%% +%% The opening paragraph of +%% \cite{wwapal}'s Section 6 +%% %%% quite +%% %was frank +%% warned the reader +%% about ISINF's limitations. +%% These arose because +%% +%% +%% It +%% used the word ``unnatural'' to describe +%% the ISINF system. +%% Such caution +%% % deliberately +%% % self-deprecating term +%% was appropriate because +%% +Unfortunately, this result was mostly useless because +nearly all + theorem-proofs +%of trivial theorems0000000 +from ISINF +were +longer than the number of atoms in the universe. + +The reason +\cite{wwapal} defined ISINF, +%ISINF was worthy of mention, +despite +such +%%% these +% plainly +%%% obvious +limitations, +was +because +ISINF +demonstrated some self-justifying logics, +knowledgeable about their own Hilbert consistency, +were +% technically +able to +prove all of Peano Arithmetic's $\Pi_1$ theorems +together with the +existence of +the infinite set of integers $ \, 1,2,3,... \, \, $. +This result +% is interesting because it casts +did cast +% casts +a +new +perspective +%light +on $\,++\,$'s +invariant +% $++$ (appearing on \pag2) +by showing how some +Type-NS +forms of self-justifying arithmetics +escape $++$'s almost-ubiquitous + reach +by managing to possess infinite far reach + without taking +% {\it without recognizing} +Successor as a total function. + + +%% of the current article. +%% The latter result indicated that Type-S arithmetics, recognizing merely +%% Successor as a total function, are unable to confirm their own +%% Hilbert consistency. +%% Yet, +%% %% despite this fact, +%% ISINF was able to produce an +%% {\it eye-squinting} caveat because it +%% supported the above ``Infinite Far Reach'' property +%% without +%% needing +%% %being able to prove +%% Line +%% \eq{totdefxs}'s declaration that successor is a total function. + +%\smallskip + +We sent an advanced copy of \cite{wwapal} +to +Pudl\'{a}k. +He +appreciated the nature of the challenge we faced, +concerning the delicate nature of self-justifying +arithmetics that are +able to prove +% satisfy +\eq{farreach}'s invariant +{\it for each fixed $~n~$} while +being prohibited +by $++$ +from +recognizing successor as a total +function. +% (due to $++$'s restrictions). +Pudl\'{a}k +%private +%His +emailed communications +\cite{Pupriv} +suggested +that we look at +Ajtai's +work +\cite{Aj94} +about a +%the +Pigeon-Hole function + $~ \glamb(x)~$ defined by the identities +\eq{zm1} and \eq{zm2}. + +\newpage +\vspace*{- 1.2 em} +\beq +%% \small +\label{zm1} +\forall ~~x~~~~~ \glamb(x)~ \neq ~ 0 +\enq + +\vspace*{- 1.2 em} + +\beq +\label{zm2} +%% \small +\forall ~~x~~~ \forall ~~y~~~~ x ~ \neq~ y ~~ \Rightarrow ~~ +\glamb(x)~ \neq ~\glamb(y) +\enq +The relevance of +$~\glamb~$ +% Pigeon-Hole functions +can be +best +%readily +appreciated +% if +when +%we let +$~\glamb^n(x)~$ + denotes +% the +a +term + $~\glamb(~\glamb(~ ... \glamb(x)))~$ +consisting of $~n~$ iterations of the $~\glamb~$ operator. +Then +% the +\el{DUMB1}'s +composite +term $~S_n~$ +% , defined below, shall +will +% then +satisfy +Pred$^n(~S_n~)~\geq ~1.~$ +%% +%% An axiom system, employing the primitive +%% operation +%% $~ \glamb~,~$ +%% can thus +%% can easily +%% prove +%% Line \eq{farreach}'s +%% assertion. +%% %claim. +%% %under almost all conventional logics. +%% +%% +\beq +\label{DUMB1} +S_n~~~=~~~\mbox{Max}[~\glamb(0)~,~\glamb^2(0)~,~\glamb^3(0)~,~...~~\glamb^n(0)~] +\enq +Pudl\'{a}k +observed +that +%the +% Pigeon-Hole function + $~ \glamb(x)~$ +will +grow too slowly (in the worst case) +for +one to be able to +deduce +successor is a total function +from its properties +% further observed that it is known + \footnote{ \baselineskip = 0.94 \normalbaselineskip + The operation $\glamb(x)$ will grow +at a slower rate than Successor, +if it equals $x+1$ for all standard +numbers $~x~$ and if $\glamb(x)=x-1$ + when $~x~$ is +a non-standard integer. This seemingly minute detail +implies one cannot infer +Successor is a total function from + $\glamb$'s behavior, since the latter is contradicted by a + model where + all non-standard +numbers have +%their +sizes bounded by some fixed +% non-standard +number B. +(This +subtle detail, +raised by +Pudl\'{a}k's email \cite{Pupriv}, was fascinating because +it +%shows that +raised the question about whether + a partial exception to +Example \ref{ex-2.3}'s +invariant $++$ +%% on \pag2, +might plausibly exist.) }. +%% +%% thus, +%% suggests the +%% Pudl\'{a}k-Solovay +%% version of the Second Incompleteness +%% Theorem (stated on \pag2) +%% might +%% %%%%%should +%% allow for +%% potential +%% exceptions +%% to it +%% arising from the +%% %delicate +%% formal +%% behaviour of +%% some +%% %% +%% %% presence of +%% %% %some +%% %% these permissible +%% %% +%% %% +%% non-standard +%% variants of +%% % interpretations for +%% the Pigeon-Hole function $\glamb$. }. +%% +%% +%that +%prove +His insightful email \cite{Pupriv} asked +whether +the inequality +Pred$^n(~S_n~)~\geq ~1~$ +might +%would, +thus, +% still +enable a formalism, +% based around +utilizing the + $\, \glamb \,$ operative, +to +somehow +improve upon \cite{wwapal}'s results ? + + +% our +% formalisms could be +% revised +% %modified +% so that +% % the Pigeon-Hole function +% $~ \glamb(x)~$ +% could improve upon \cite{wwapal}'s results. + +%% +%%(possibly using Ajtai's methodologies \cite{Aj-focs}). +%%Sam Buss raised, interestingly, a +%%partially +%%similar +%%issue during an informal conversation +%% \cite{Bu-priv} in 1977. +%% +%%\smallskip +%% +%%These questions +%%% by +%%%Pudl\'{a}k and Buss +%%were insightful because they isolated +%%an +%%important juncture where $++$'s underlying methodology does not apply. +%%A partial answer to these questions appeared in +%%\cite{wwapal}'s closing section, but a more comprehensive full +%%answer has always eluded us. + +%This is because there always seemed to appear +%one wrinkle of details that precluded a full proof. + + +\smallskip + + +It was +initially + unclear +%%%%% to us +whether a positive answer to +Pudl\'{a}k's + probing + question would resolve ISINF's main difficulties. +This is +because +% Expression +\eq{DUMB1}'s +term +$~S_n~$ requires $O(~n^2~)$ logic symbols to encode +% essentially +an integer quantity +greater than + $~n~$ +(since its term +$~\glamb^j(0)~$ uses $O(j)$ logic symbols). +%an integer quantity that exceeds the quantity $~n~$ in size. +Thus once again, the quantity $~2^{100}~,~$ whose binary encoding +requires 100 bits, would require in excess of + $~2^{100}~$ bits to encode. +Such quantities, exceeding the number of atoms in the universe, +were troubling because our +general +goal has been to +construct self-justifying arithmetics that + possessed, at least, +some +partial facets of + pragmatic value. + + +% +% find a partial +% answer to Hilbert's +% Year-1900 Second +% Problem +% that would +% possess, at least, +% some +% partial facets of +% pragmatic value. +% + +\bigskip +\gvs + +The remainder of this section will outline how a different type of +Q-Function operator will +be much better than + $~ \glamb~$ for meeting our needs. +During our discussion, +Power$(x)$ will denote +a primitive specifying +% that + $~x~$ is +a power of +$~2~$. It is +%formally +encoded +by +\eq{wep2} +because +%under +our Grounding language +has +``Logarithm$(x) \,$''$ ~ = ~ \lfloor \,$Log$_2(x) \, \rfloor \,$. +\beq +\vspace*{- 0.6 em} +\label{wep2} +%\small +x=1 ~~~\vee ~~~ \mbox{Logarithm}(~x~)~\neq~\mbox{Logarithm}(~x-1~) +\enq +In this context, + $\zzthe(x)$ +will denote the analog of +the $\glamb(x)$ function +%% haphazard +that walks among the powers of 2 in a manner +similar to +$\glamb(x)$'s +% haphazard + walk through conventional +integers. +It is +formally +defined by \eq{walk1}-\eq{walk4}. +% +% It will thus satisfy +% the axiomatic constraints below (which are +% $\zzthe(x)$'s analog of the more modest constraints given in +% % sentences +% \eq{zm1} and \eq{zm2}). +% The most important difference between these two constructs +% is that axiom \eq{walk1} requires that +% $\zzthe(x)$ maps power of 2 onto powers of 2. + +% {\small + +\vspace*{- 0.6 em} +{\parskip -6 pt +\beq +\label{walk1} +\forall ~~x~~~~~ \mbox{Power}(x) ~~~ \Rightarrow ~~ +\mbox{Power}(~ \zzthe(x)~) +\enq +\beq +\label{walk2} +\forall ~~x~~~~~ \zzthe(x)~ \neq ~ 1 +\enq +\beq +\label{walk3} +\forall ~~x~~~ \forall ~~y ~~~~[~ x ~ \neq~ y ~ +\wedge ~\mbox{Power}(x)~] + \Rightarrow ~~ +\zzthe(x)~ \neq ~\zzthe(y) +\enq +\beq +\label{walk4} +\forall ~~x~~~~~ \neg ~ ~\mbox{Power}(x)~~~~ \Rightarrow ~~~~ +\zzthe(x)~=~0 +\enq} + +\vspace*{- 1.2 em} +\noindent +{\it It needs to be emphasized} that + \eq{walk1} -- \eq{walk4} will be the +{\it only vehicle} our +self-justifying axioms +%will +have available to construct +integers $\geq \, 3$. $~$These +axioms will be called +%They will be henceforth called +the {\bf $~$Up-Walking$~$} axioms. +(The axiom \eq{walk4} +is, +% does not, +technically, +unnecessary + to construct any +integer $\geq \, 1\, $, but it is helpful because +it +% allows us to +formalizes how our methodology will treat integers +which are not powers of 2.) + +Both +the +Q-functions +% the operators +$\glamb$ + and $\zzthe$ are +challenging +%daunting +because there are a + dizzying +$\aleph_1$ distinct +vectors, analogous to + Line \eq{wow}, +that are +%where their definitions permits +representations of these functions. +%% +%% Also, we may combine either operation with our +%% language $L^G$'s grounding function-primitives to formulate a term +%% $~T_n~$ that defines any arbitrary integer $~n~$. +%% +We will soon see that +there is, however, a +distinction +% major difference +between these two concepts +from a computational complexity perspective. + +\begin{definition} +\label{defx-3.2} +\rm +Let $~L^Q~$ +and $~L^{Q^*}~$ +denote the +extensions +of $~L^G\,$'s Grounding language that contain the +respective +additional +function symbols of + $\zzthe$ + and +$\glamb$. Then +$~~L^Q~$ shall be called the {\bf Q-Grounding} language, and + $~~L^{Q^*}~$ +will be called the {\bf Q* Grounding} language. +\end{definition} + +\begin{propp} +\label{th-3.3} +In contrast to the +Q* Grounding language +that requires $O(~n^2~)$ function symbols +for defining a term $~T^*_n~$ for representing the integer +$~n,~$ the Q-Grounding language +%% will need no more than +needs +% uses +only +$O(~$Log$^{ \, 3\,} \,n~)$ symbols to +encode +%formalize +a term +$~T_n~$ representing +$~n$. +\end{propp} + +\vspace*{- 1.0 em} + +\begin{center} +% \small +% Our proof of \phx{th-3.3} +\phx{th-3.3}'s +proof +will rely upon the following notation convention: +\end{center} + +\vspace*{- 0.8 em} + +\begin{definition} +\label{def-3.3} +\rm +Let + $~\zzthe^j(x)~$ +denote the term + $~\zzthe(~\zzthe(~ ... \zzthe(x)))~$ +where there are +$~j~$ iterations of the + $~\zzthe~$ operation. +% Throughout this article, +Then +%for any $~j \, \geq 1~,~$ +%the symbol +$~E_j~$ +will +% shall +% will +denote +the quantity produced by +\eq{ej-def}'s division operation: + +\vspace*{- 0.6 em} + +\beq +\small +\label{ej-def} + \frac{~\mbox{Max} +~[~\zzthe^{\, j \,}(1)~,~~\zzthe^{\, j-1 \, }(1)~,~... ~\zzthe(1)~~] } +{~~\mbox{Half}^{\,j\,} ~ \{ ~\mbox{Max}~[ + ~\zzthe^{\, j \,}(1)~,~~\zzthe^{\, j-1 \, }(1)~,~... ~\zzthe(1)~]~ + ~ \}~~ } +% +% \mbox{Max}(~\zzthe^j(1),~\zzthe^{j-1}(1),~... ~\zzthe^1(1)~ +\enq +It is each to see +$ E_j = 2^j $ for every +$j \geq 1$. +This is + because \el{ej-def}'s +twice-repeating term +object + of +$ \mbox{Max} +~[~\zzthe^j(1), \zzthe^{j-1}(1),...\zzthe(1) \,]$ +% is at least as large as $\, 2^j\,$. +is a power of 2 exceeding $\, 2^j\,$. +%% +%% The definitions of the +%% % Q-Grounding +%% functions of ``Half'', ``Max'' and +%% ``$~\zzthe~$'' imply +%% $~E_j~=~2^j~$ for each +%% $j \, \geq 1$. +%% +For the additional case where $~j=0~,~$ +we will +% formally +define $~E_0~=~1~$ (by +using the +%% +%%setting it equal to +%%our +%%%the +%% +built-in constant symbol +of $~C_1~$). +\end{definition} + +%% , which +%% is intended to +%% %formally +%% represent the integer of ``1''). + + + +{\bf Proof of \phx{th-3.3}:} +%The justification of \phx{th-3.3} is an +Easy consequence of +\dfx{def-3.3}'s machinery. Thus if $~n~$ is a power of +2 of the form $~2^j~$ then +% the preceding +% definition's +expression $~E_j~$ is a term representing $~n \,$'s value +that employs + $O(~$Log$^{ \, 2\,} \,n~)$ +logical +symbols. On the other hand, if + $~n~$ is not a power of +2 then it can be defined +with $O(~$Log$^{ \, 3\,} \,n~)$ symbols by +setting +$~E_j~$ equal to the least power of 2 greater than $~n~$ and +subtracting from $~E_j~$ those powers of 2 that are needed to +produce $\,n\,$'s value. +For example since $76~=~128~-~32~-~16~-~4~,\,$ it can +be formalized as a term $T_{76}$ defined by +$~E_7 \, - \,E_5 \, - \,E_4 \, - \,E_2 ~$. + +% $~~~~\Box$ + +% \baselineskip = 1.8 \normalbaselineskip + +\begin{definition} +\label{def-3.4} +\rm +A term in mathematical logic +is defined to be a syntactic object, built +out of +solely + symbols for representing +functions, +constants and variables. +% +% The nomenclature in +% % classical +% logic has +% %formally +% defined +% a {\it ``term''} to be a syntactic object, built +% out of symbols for representing +% functions, +% constants and variables. +% +% +Such an object is called +% either +a {\bf ``Ground Term''} +%% (or for precision a +%%% {\bf ``Tree-Oriented Ground Term''} ) +when it is built {\it out of solely} +function and + constant symbols. +For example in our Q-Grounding language (which +uses +%owns only +$ C_0 $, $ C_1 $ and $ C_2 $ +as +built-in + constants) +% symbols), +the expression +%of +``$\, C_2- C_1\,$'' +is a +% such +a Ground term. +Two more complex +examples of +Ground terms are +``Max$( C_2 , C_1 - C_0)$'' +and ``Max$( ~\zzthe(C_1)~,~C_2 ~)$''. +Also, +expression $~E_j~$ +in Line \eq{ej-def} +should be viewed as +a Ground term (when one +views +its +use of the +symbol + ``1'' as an %informal +abbreviation +for the +constant + ``$~C_1~$''). +\end{definition} + + +\begin{remm} +\label{rem-def-3.4}. +\rm +Section \textsection \ref{ss6} +and its Proposition \ref{th-6.1} +will technically distinguish between two +kinds of Ground terms, that it calls the +% +%{\bf Comment of Definition \ref{def-3.4}'s Notation:} +%We will distinguish between two +%kinds of Ground terms in Section \textsection \ref{ss6}, +%called its +{\bf ``Tree-Oriented''} and +{\bf ``Dag-Oriented''} formats. +The latter will differ from a more +conventional tree structure +by having a +Directed Acyclic Graph structure replace +a logic's +usual + tree format for defining its quantitative values. +Our discussion in the next two sections will be +simplified if we use the shorter phrase of +{\it ``Ground Term''} +to refer to what Section \textsection \ref{ss6} will more +accurately call a +{\it ``Tree-Oriented Ground Term''}. +(It will turn out +% that our +Proposition \ref{th-6.1} +will later explain how Dag-Oriented Ground Terms +differ from +their + tree-oriented +counterparts +% Ground Terms by allowing us +%to reduce the +by reducing the +$O(~$Log$^{ \, 3\,} \,n~)$ length of a +tree-oriented term to a more compact +$O(~$Log$\, \,n~)$ size.) + \end{remm} + + +\begin{definition} +\label{def-3.5} +\rm +A ground term $~T~$ will be called an +{\bf ``Observable''} +object iff there is +%{\it only one} +an +unique +interpretation of its +quantified value in the +%meaning in our +Q-Grounding language. +It +%will be + is +called an +{\bf ``Unobservable''} iff it has multiple +%plausible +such +interpretations +due to $\zzthe$'s ``indeterminate'' definition +(e.g. see Definition \ref{def-3.1}). +\end{definition} + +%%% (due to the +%%% %uncountably +%%% ambiguous nature of +%%% % our built-in function +%%% $~\zzthe~~$). +%%% \end{definition} + +\begin{exx} +\label{ex-3.6} +\rm +The previously mentioned ground term +Max$( ~\zzthe(C_1)~,~C_2 ~)$ is an ``unobservable'' +because it can assume any of the plausible integer values +of $~2 \, , \, 4 \, , \,8 \, , \,16 \, + \, ... ~$. +On the other hand, +%% expression +\eq{xoo} +is an ``observable'' +that + represents + the integer value of ``3''. +(This is because +its +twice-repeating +term +``$~\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~]~$'' is bounded +below by 4, causing the left and right sides of its subtraction +operation to differ by +% an amount of +exactly 3.) +\beq +%% \small +\label{xoo} +\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~] ~~-~~ +\mbox{Pred}^{\, 3 \,} \{~\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~]~\} +\enq +Our notation +%thus +also +implies that Line \eq{ej-def}'s + expression $~E_j~$ +is an + ``observable''. This implies, in turn, that + \phx{th-3.3}'s term $~T_n~$ is an ``observable'' + employing no more than + $O(~$Log$^{ \, 3\,} \,n~)$ +logical +symbols. +For example since $76~=~128~-~32~-~16~-~4~,\,$ +it follows that $~ T_{76}~$ +corresponds to the term +$~E_7 \, - \,E_5 \, - \,E_4 \, - \,E_2 ~$, +$~$where each $~E_j~$ employs only + $O(~$Log$^{ \, 2\,} \,j~)$ symbols. +%%%%%\end{exx} +\end{exx} + + + +Thus, \dfx{def-3.5} and Example \ref{ex-3.6} have illustrated +%that +how +the realm of ``observable'' objects is a +% very +broad and accessible world, +of +non-trivial +%% pragmatic + significance. +It allows every integer $~n~$ to be represented by a +% reasonably small +term $~T_n~$ with +% an +a tight + $O(~$Log$^{ \, 3\,} \,n~)$ length +(in a context where Section \textsection \ref{ss6}'s more elaborate formalism +will allow us to reduce this length to a yet more +attractive $O(~$Log$ \,n~)$ size). + +%% +%% We will soon see +%% how Arithmetic's conventional $\Pi_1$ sentences can +%% also have +%% % pleasingly +%% terse encodings. +%% + + +%% Also, all +%% Arithmetic's conventional logical sentences do have +%% likewise +%% % pleasingly +%% terse encodings. +%% % under our notation convention. + + +The distinction between +``Observables'' and ``Unobservables'' +% ground terms +will +%also +%% +%% cast a +%% delightful +%% +offer a + new perspective on +the aspirations +% that +which +Hilbert and G\"{o}del +expressed +in +their +statements $*$ and $**$ +under our proposed +\newline +2-part conjecture. +It + will suggest +how the Second Incompleteness Theorem +can +% remain to +be seen as a majestic result +from a purist perspective +, while +a {\it well-defined fragment} of +%their +what +Hilbert and G\"{o}del +sought in + $*$ and $**$ +%aspirations +%% in statements $*$ and $**$ +can +likely +%almost certainly +be +%part-way +satisfied (in at least a +% well-defined +limited sense). + + +\begin{remm} +\label{rem-3.7} +{\bf (explaining the goals of this paper):$~$} +\rm +Let us say +that +a basis axiom system $~\alpha~$ owns +a {\it ``Finitized Perspective''} of the Natural Numbers +if it requires only a +{\it finite number} of proper axioms +to construct the full set of integers +$~0,1,2,3~... ~$. All conventional arithmetics have this property. +%It is useful to divide such +Such +logics +%arithmetics +fall into two categories, +called {\it Single} and {\it Double-Formatted} systems. +%as defined below: +They are defined below: + %These constructs are defined below: +\bed +\item[ a. ] +%An axiom basis $~\alpha~$ +%will be called +{\bf Single-Formatted Arithmetics} consist of +axiomatic basis systems +% $~\alpha~$ +%all of +whose +%iff all its +ground terms are +all +Observables. +(Most conventional arithmetics +%%%% will +%fall into this +lie in this +category +%when the +because they +employ the + growth +% function +properties + of +the Successor +operation +%function + in +% a straightforward +%the +%% a conventional +the traditional +manner.) +%% since the +%% the simple growth function of Successor +%% easily +%% generates +%% all the natural numbers). +%are {\it ``Single-Formatted Formatted''} logics. +\item[ b. ] +{\bf Double-Formatted Arithmetics} +% representing +represent +systems +%%%consisting of +%%%%axiomatic +%%%logics +%%%%%basis systems +whose ground terms +may be either + Observables +or Unobservables. +(Axiomizations +for Q-Grounded logics +%% of +%% the +%% % our +%% Q-Grounding language +are +%%% will +%obviously +%%% be +``Double-Formatted'' +because they +allow $\theta$'s analog of +\el{wow}'s function symbol $F$ +to have +an uncountable number of +different allowed +representations). +% +% (Our +% Q-Grounding language +% gives support to such a system. +% This is because it +% can have its function primitives +% defined by a finite number of +% proper axioms,) +% %axiom-sentences.) +\ennd +The distinction between +categories +%Items +(a) and (b) is +significant +% important +because +Example \ref{ex-2.3} +%%% \pag2 +%%% had +already explained how + statement $++$'s generalization +of the Second Incompleteness Theorem applies to +any formalism recognizing Successor as a total function. +Thus, Item (b)'s Double-Formatted logics +are useful, if one wishes to consider alternatives +to +%formalism that do not recognize +successor as a total function. +%More precisely, +In this context, +Hilbert's +% famous +%Year-1900 +Second +Open +Problem +can be viewed + as a {\it 2-part question}, +composed of sub-queries Q-1 and Q-2: +%%%%% +%%%%% {\it 2-part question}. +%%%%%The separation of Hilbert's question into two parts, +%%%%%called Q-1 and Q-2, will allow +%%%%%%% +%%%%%%% This +%%%%%%% bipartite +%%%%%%% distinction +%%%%%%% is useful because it +%%%%%%% can enable +%%%%%%% +%%%%%the academic community to better +%%%%% with +%%%%% what Hilbert and G\"{o}del were +%%%%%seeking to accomplish +%%%%%in +%%%%%their +%%%%%statements +%%%%%of $*$, $**$ and $***$. +\bed +\small +\item[ {\bf Question Q-1$~~$}] {\it Are any axiom systems +able to + prove +theorems +verifying + their own consistency in a robust sense?$~~$} +The answer to Q-1 is clearly ``No'' because the combination + G\"{o}del's initial 1931 result \cite{Go31} with +%the +%further +Hilbert-Bernays's result +\cite{HB39} +and the Pudl\'{a}k-Solovay invariant $++$ +(from Example \ref{ex-2.3}) +%% \pag2) +imply +arithmetics of ordinary strength cannot prove +their own consistency in a robust sense. +\item[ {\bf Question Q-2$~~$}] + {\it Can +logic systems +%arithmetic logics +%axiomatizations of Arithmetic +% , at least, +%somehow +``appreciate'' +% (not formally ``prove'') + their +own consistency in some +{\bf REDUCED} sense, that is diluted +but not fully immaterial?} +$~~\,$The answer to +%question +Q-2 is +complex +%%% more complex than Q-1 +%less clear-cut +because +%several types of +some +arithmetics, +such as \cite{ww93,ww1,ww5,wwapal,ww9,ww14}'s paradigms, + can +formalize +% ``recognize'' +their +own consistency +using Example \ref{ex-2.5}'s +% a +Fixed-Point {\it ``I am consistent''} +axiom. +\ennd + + +%% % sentence $\,\oplus\,$. +%% %%Using +%% %%%%%%%%%Under +%% % Using the notation from +%% Under +%% Lines +%% \eq{totdefxs}--\eq{totdefxm}'s notation, +%% these paradigms include: +%% % both: +%% \bee +%% \small +%% \baselineskip = .86 \normalbaselineskip +%% \item +%% Type-A arithmetics +%% \cite{ww93,ww1,ww5,wwapal,ww9,ww14} +%% %capable of +%% recognizing their self-consistencies under +%% either the deductive mechanics of semantic tableaux or one +%% of its cousins. (See especially \cite{ww14}'s +%% recent Wollic-2014 paper.) +%% \item +%% Type-NS arithmetics recognizing their Hilbert consistency, +%% such as the formalisms of \cite{ww1,wwapal} +%% %further +%% improved, possibly, +%% with the added techniques introduced in +%% this article. +%% \ene +%% +%% \ennd + + +A theme of this article will be that +% distinction +the distinguishing +between questions Q-1 and Q-2 and between +Single and Double-Formatted Logics +is +related +% likely central +to the mystery +% that has enshrouded +enshrouding +the Second Incompleteness Theorem. +This is +%is germane to the aspirations of automated theorem proving +%will be germane to this article +because there +%is no doubt +can be no doubt that +% can be no question +%%%%%%%% that +the Second +Incompleteness Theorem is fully +robust +% result +from a purist +%pristine +mathematical perspective. +Yet, +it is still problematic to fully +% +% simultaneously +% % at the same time, +% it is +% hard to +% entirely +% +dismiss + Hilbert's 1926 +suggestion that + some +specialized forms of logics should +%declaration +%% +%% concerns +%% in $\,*\,$ +%% that +%% {\it ``the honor of human understanding''} +%% requires +%% examining +%% % explaining +%% % considering +%% how logic systems can +%% +possess +a type of well-defined + knowledge about their +own +internal +consistency. +(This is because it is +highly + awkward to explain how and why +human beings +are able to +%can +%manage to +motivate +their +%cogitations, +cognitive process, +% themselves to think, + if they do not own +some type of +% instinctive +internal +knowledge about their own + consistency.) + +% sufficient +% % enough +% knowledge about their +% % own +% internal +% consistency +% to motivate +% cognition. + +% Bad change above +%cogitation. +% themselves to cogitate. + +%%It is also +%%especially +%%% very +%%tempting +%%to divide Hilbert's Year-1900 +%%Open Question into its Q-1 and Q-2 separate parts +%% during the 21st century, +%%as computers share with humans cogitative abilities. +%% +%%Maybe DELETE above sentence ??? +\end{remm} + +% \baselineskip = 1.8 \normalbaselineskip + +The next +two +sections will +describe our +2-part +conjecture about how +%a +Double-Formatted Logics are +likely to +%produce some +cast +new perspectives +on +this topic. +%the nature of the Second Incompleteness Theorem. +Before starting this subject, it should be mentioned +that other unusual interpretations of the Second Incompleteness +Theorem have followed +from Gentzen's perspectives about +transfinite induction +under his $\epsilon_0$ ordinal +\cite{Ge36,Ta87}, the +%% +%% +%% explore +%% how \cite{wwapal}'s results for a Single-Formatted logic +%% can be revised +%% % with our new $~\zzthe~$ function +%% under a +%% +%% Before +%% broaching +%% this topic it should be mentioned that +%% %0fascinating +%% other approaches to +%% %efforts to partially +%% the Second Incompleteness Theorem +%% % do +%% have centered around +%% + Kreisel-Takeuti's ``CFA'' +system \cite{KT74} +and also +the {\it interpretational frameworks} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to +our +%% main +%\cite{ww93}--\cite{ww14}'s +methods. +%approach. +They +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Also, +they +%apply to +employ +``cut-free'' logics +(rather +than +a preferable Hilbert-style deductive apparatus). +%that +%%%%%%%%%%% explored +%%%%%%%%%%% in +%%%%%%%%%%% \textsection \ref{ss32} ). +%%%we are considering). +%% +%%Instead, CFA uses the +%%special +%%properties of ``second order'' generalizations of Gentzen's +%%{\it cut-free} +%%Sequent Calculus, +%%and +%%the +%%interpretational approach +%%formalizes how some systems +%%recognize their +%% Herbrand consistency +%%on localized sets of integers, +%%which +%%unbeknownst to +%%themselves, +%%includes all +%%integers. +%% +%%%These +% alternate +%%%approaches +Their +%alternate +% very + fascinating +perspective +should +% certainly, + be examined by researchers +interested in the +Second +Incompleteness Theorem, +although +%but +it is +%% +% they are +unrelated to +our particular +% the next section's +%specific analysis of +type of +Hilbert-styled self-justifying effects, +studied in the current article. + + +%% systems +%% formalizing +%% %verifying +%% their +%% own consistency +%% %%%%%Definition \ref{def-2.2}'s +%% %%% approximate +%% under +%% Hilbert-styled +%% deduction. + + +%deduction. +% Hilbert deduction. + +%methods. +%formalism. + + +%% It is, +%% % They +%% %are, +%% however, not germane to the next section's +%% perspective. + +%methodology. +%main formalisms. +%methods. +%results. + + % \baselineskip = 1.8 \normalbaselineskip + +%\section{ +%\small +%Improving \cite{wwapal}'s Results with a +%``Double-Formatted'' Logic } + +\section{First Half of our 2-Part Conjecture} + +% \label{ss32} +\label{ss5} + + +The only aspect of our prior research that will be directly +related +to our 2-part conjecture is the ISCE axiom system, +defined in \cite{wwapal}'s Sections 3 \& 4. +The next several paragraphs will review +\cite{wwapal}'s results, for the reader's convenience. +%% +%% This section will +%% review \cite{wwapal}'s results in sufficient detail +%% so that a reader need not examine \cite{wwapal}'s formal +%% text, +%% +%% %%%%%definition of the ISCE axiom system. +%% +%% During our discussion, +%% + + +During our +discussion, +%review of \cite{wwapal}'s results, +$~L^G~$ will once again denote +our Grounding-level language built out of our six +non-growth functions, +consisting + of +the +Subtraction, Division, +Maximum, Logarithm, Root and Count operations. +Also, $\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ will denote +three constant symbols designating the +integers values of +``0'', ``1'' and ``2''. +In a context where Pred$(x)$ is an abbreviation for +``$\,x \,- \, 1\,$'' +(or more precisely +``$\,x \,- \, C_1\,$'' ), +the ISCE axiom system from \cite{wwapal} +used +\eq{start}'s axiom + statement +to define + $\,C_0\,$, $\,C_1\,$ and $\,C_2~$: +% these three constants: +\begin{equation} +\label{start} +\mbox{Pred}( C_0 ) = C_0~ \, \wedge ~ \, +C_1 \neq C_0~ \, \wedge ~ \, +\mbox{Pred}( C_1 ) = C_0 ~ \, \wedge ~ \, +\mbox{Pred}( C_2 ) = C_1 +\end{equation} +%Also, +The challenge +\cite{wwapal} +faced was its formalism could +not use any of the +% conventional +function-operations of +successor, addition or multiplication to infer the existence +of larger integers from the initial constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,$. This was because +the Pudl\'{a}k-Solovay result $++$ +indicated + the +presumption successor is a total function +precludes +most +%axiom +systems +from recognizing their +own Hilbert +consistency. + +Our article +\cite{wwapal} +considered two alternatives +%to a conventional Successor +%function symbol +for overcoming these difficulties, + called +the {\bf Additive} and {\bf Multiplicative Naming} +conventions. +They defined +some +further constant symbols $~C_3,~C_4,~ C_5,~ ...~$ +and $~C^*_3,~ C^*_4,~ C^*_5,~ ...~$ +where +%respectively +$~C_j~=~2^{j-1}~$ and $~C^*_j~=~2^{\, 2^{ \,j-2}}~$. + +The definition of these +% new +constants +% symbols +is +easy +%straightforward +under $L^G\,$'s +% Grounding-level +language. +% called $L^G~,~$ +%all of whose function objects are non-growth primitives. +This is because +Lines +\eq{newadd} and \eq{newmult} +%had +specify how +% that +two 3-way predicates, called +Add$(,x,y,z)$ and Mult$(,x,y,z)\,$, +%can +%do +encode the identities of +% can be encoded to specify, respectively, +$x=y+z$ and $x*y=z$. +Our additive and multiplicative +% naming +conventions +can, +%will, + then, define + $~C_3,~C_4,~ C_5,~ ...~$ +and $~C^*_3,~ C^*_4,~ C^*_5,~ ...~$ +%by using +via +an infinite number of instances of +%utilizing respectively + \eq{addcov} and +\eq{multcov}'s +%{\it infinitely long} +axiom schemas: +% two infinite schemas of axiom-sentences: +%% +%% that belong to our +%% ``Additive'' and ``Multiplicative +%% Naming Conventions'', +%% then the values for +%% $~C_j~$ and +%% $~C^*_j~$ can be easily derived from $j-2$ instances of +%% %respectively \eq{addcov} and \eq{multcov}'s +%% these +%% schema: +%% + + +{ +%\small +\beq +\label{addcov} +\mbox{Add}(~C_{j-1}~,~C_{j-1}~,~C_{j}~) +\enq +\beq +\label{multcov} +\mbox{Mult}(~C^*_{j-1}~,~C^*_{j-1}~,~C^*_{j}~) +\enq} +The methodology in + \cite{wwapal} +%% employed \eq{addcov} and \eq{multcov}'s schema in a context where it +presumed +% assured +%the Y of +the ``names'' for its constants $ C_j $ +and $ C^*_j $ +had nice compact encodings using $O(~Log(j)~)$ bits. +Its formalism calculated +%, thereby, +the values of ``unnamed'' integers from +named entities via the {\it non-growth} Subtraction and +Division primitives. For instance since $~20~=~32-8-4~,~$ +the quantity 20 +can be encoded as $~C_6-C_4-C_3$. +%%%%%%%%%%%%%%%% under \eq{addcov}'s naming convention. + + +%% required +%% $O(~Log(j)~)$ bits. +%% Thus, the length of these encodings was +%% much +%% smaller +%% than the respective +%% numbers +%% % magnitudes of +%% $2^{j-1}~$ and $2^{2^{j-2}}$ +%% %that +%% these constants represent. + +The challenge \cite{wwapal} +faced was to determine whether +%it was possible to formulate +self-justification +was possible +under +either +\eq{addcov}'s +% ``Additive'' +or \eq{multcov}'s +% ``Multiplicative'' +%% naming +schema. +It found +%that + \eq{multcov}'s +multiplicative +% naming +convention was incompatible +with self-justification (due to its +%%very +speedy growth rate), +but +%In contrast, +\eq{addcov}'s additive +% naming +schema did, +conveniently, + permit self-justification. + +\medskip + +Our new proposed Double-Formatted form of a self-justifying +axiom system is easiest to describe, if we first +review \cite{wwapal}'s Single-Formatted formalism +and then incrementally refine it. + +The extension of our base-language $~L^G~$ +that includes the Additive Naming Convention (ANC)'s +additional constants + $~C_3,~C_4,~ C_5,~ ...~$ will be called +an {\bf ANC-Based Language} and be denoted +as $~L^{ANC}~$. +Also if + $\, t \,$ denotes any term in $\, L^{ANC} \,$'s +language, then +the quantifiers in +the two wffs of +$~ \forall ~ v \leq t~~ \Psi (v)~$ and +$\exists ~ v \leq t~~ \Psi (v)$ +will be called $\, L^{ANC} \,$'s +{\bf ``Bounded +Quantifiers''}. + + +\begin{deff} +\label{def-3.8} +\rm +The analogs of a conventional arithmetic's +$\Delta_0$, $\Pi_n$ and $\Sigma_n$ +formulae +in the +language $L^{ANC}$ will be denoted as +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ + and $\Sigma^{ANC}_n$. +Thus, +a formula will be defined to be +$\Delta^{ANC}_0$ iff all its quantifiers are bounded. +The +%%%%%%%%% below +definitions +of $\Pi^{ANC}_n$ and $\Sigma^{ANC}_n$ +formulae are also quite conventional: +\bee +%\small +\parskip -2 pt +\baselineskip = 0.8 \normalbaselineskip +\item +Every +$\Delta_0^{ANC}$ formula is considered to +be +also +a +$\Pi_0^{ANC}$ and +an +$\Sigma_0^{ANC} $ expression. +%% +%% ``$~\Pi_0^{ANC}~ \,$'' and +%% % also +%% ``$~\Sigma_0^{ANC}~ \, $''. +%% +\item +A +formula +is called + $ \,\Pi_n^{ANC} \,$ +when it +% is +can be +encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ +where +%with +$\Phi$ is $\Sigma_{n-1}^{ANC}$ +\item +A formula +is called + $\Sigma_n^{ANC}$ +when it can be encoded as +$\exists v_1~ ...~ \exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{ANC}$. +\ene +\end{deff} + + + +%%\begin{deff} +%%\label{def3.9} +%%\rm + + \parskip 1pt + + +Given an initial axiom system $\beta,$ +the Theorem 3 of \cite{wwapal} defined a +self-justifying logic, called +ISCE$(\beta)$ +that could prove all +$~\beta\,$'s $\Pi_1^{ANC}$ theorems and +verify its own consistency under a Hilbert-style deductive +apparatus. It consisted of the following four +groups of axioms: +% +% \newpage +\begin{description} + \parskip 0pt +\item +{\bf GROUP-ZERO:} +This +schema +% axiom group +will +use \el{start}'s axiom to define the constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ +and +%employed +%an infinite number of instances of +\el{addcov}'s Additive Naming +schema +%convention +to define + the further constants + $ C_3, C_4, C_5, ... $ +\item +{\bf GROUP-1:} +It is convenient to +define + ISCE's Group-1 and Group-2 +axioms using a notation that +will support \cite{wwapal}'s Theorem 3 +in a +% slightly + more +general sense than +appeared in \cite{wwapal}, +%%% under a slightly different notation convention, +% is transparently equivalent +% (but slightly different) from \cite{wwapal}'s counterpart, +so that +% a +the +new +% proposed +%%%% second + ``IQFS'' +formalism +(appearing later in this section) +% shall +will +%proposal shall +% framework will +be easier to describe. +Let us +therefore + say a $\Pi_1^{ANC} $ sentence is {\bf Simple} +iff the only built-in constants it employs are +$\,C_0\,$, $\,C_1\,$ and $\,C_2$. +Then ISCE's Group-1 scheme will +allowed to + be any finite set of +simple $\Pi_1^{ANC} $ axioms, called $~S~,~$ +that is consistent with Group-zero schema and +which + has +the following properties: +\bee +\item + The union of $~S~$ with ISCE's Group-Zero +axioms +will be capable of proving all $\Delta^{ANC}_0 $ +statements which +are true. +\item + The union of $~S~$ with ISCE's Group-Zero +scheme +will also be capable of proving +that +the ``=" and ``$\leq$" predicates +% own +support +their conventional +transitivity, reflexivity, symmetry and total ordering +properties. +\ene +Any finite set +$\Pi_1^{ANC} $ axioms +with the above properties can be used to define $~S~$ +and +support +%prove +an analog of +\cite{wwapal}'s Theorem 3, +by a trivial generalization +\footnote{A formal proof of this generalization of +\cite{wwapal}'s results is +%absolutely +entirely +routine. +% and omitted here for the sake of brevity.} +For the sake of brevity, it is +omitted.} +% +%here,} + of +the methodologies from Sections 3 and 4 of +\cite{wwapal}. (Thus, +any such finite set $~S~$ supporting Conditions (1) and (2) +can be employed +by +ISCE's +Group-1 part.) +%%% +%%% and it is unimportant which +%%% particular defining +%%% set is used. +% +% BBB111 +% +% This +% % schema +% axiom group +% consisted of a finite +% set of +% $\Pi_1^{ANC} $ axioms +% %, CALLED $F$, +% defining ISCE's +% Grounding function primitives. +% %This means that +% For each such function $G$ and set of numbers +% $ {k}, {k_1}, {k_2}, ... {k_m}$, +% %the combination of +% the Group-Zero and Group-1 axioms +% %must +% will +% imply +% $ G( {k_1}, {k_2}, ... {k_m}) \,=\, {k} $ when +% this sentence is true +% \footnote{ \f55 +% Our +% $\Pi^{ANC}_1$ +% encoding for the +% Group-1 scheme needs, +% technically, +% % employ +% only +% employ +% the three constant symbol $C_0$, $C_1$ and $C_2$ for the +% union of all +% the +% Group-Zero and Group-1 axioms +% to satisfy +% their +% %its +% %the +% above requirements.} . +% The Group-1 schema +% of \cite{wwapal} +% will also +% assign the ``=" and ``$<$" predicates +% their conventional +% % logical +% properties. +% %footnoted property.} +% %% +% %%(Any finite +% %%set of $\Pi_1^{ANC} $ +% %%sentences meeting these conditions is +% %%suitable.) +% %% +\item +{\bf GROUP-2:} +Let +$\ulcorner \, \Phi \, \urcorner$ denote $\Phi$'s G\"{o}del number, and +$\mbox{HilbPrf}_{ \beta }(x,y)$ +denote a +%%%%%%%%%%% $\Delta _0^{ANC+}$ +$\Delta _0^{ANC}$ +formula indicating $y$ is a +Hilbert-styled +proof +from axiom system $\beta $ of the theorem +$x$. +% +% Suppose that +%$~\beta~$ uses the same Grounding function symbols as +%ISCE$^{ANC}(\beta)$, +%and it therefore generates +%a set of +%% $\Pi_1^{ANC+} $ theorems. +% $\Pi_1^{ANC} $ +%theorems. +% +For each +%$\Pi_1^{ANC+} $ +$\Pi_1^{ANC} $ + sentence $\Phi$, +the Group-2 schema +for ISCE$(\beta)$ +% +%was defined in \cite{wwapal} +%did +will +contain +% an +one +axiom of the form: +%% +%% \begin{equation} +%% \small +%% \label{group2nold} +%% \forall ~x~\forall ~y~ +%% ~~\{~~[~~ \sigma_{~ \ulcorner \, \Phi \, \urcorner +%% ~}(x)~\wedge~ +%% \{~ \mbox{HilbPrf}~_\beta +%% ~(~ x ~,~y~)~~]~~ +%% \Rightarrow ~~ \Phi~~ \} +%% \end{equation} +%% % {\bf IMPORTANT CLARIFICATION:} +%% %{\small +%% %%{{\bf DECIPHERING LINE \eq{group2nold}:$~$} +%% {{\bf Clarification:$~$ } +%% \el{group2nold} is {\it helpful} +%% because ISCE(\beta)$ can infer +%% \eq{group2old}'s {\it simpler statement} +%% directly +%% from the combination of +%% \eq{group2nold}, +%% % it, +%% the Group-1 schema and \el{deltf}'s definition of +%% ``$~\sigma~$''.} +%% +\begin{equation} +% \small +\label{group2old} +\forall ~y~~~\{~ \mbox{HilbPrf}~_\beta +~(~ \ulcorner \Phi \urcorner ~,~y~)~~ +\Rightarrow ~~ \Phi~~\} +\end{equation} +\item +{\bf GROUP-3:} +This last part of +%%%%%%%%%%%%%%% \cite{wwapal}'s +ISCE$(\beta)$ +formalism was + a single +self-referencing +$\Pi_1^{ANC}$ +sentence +stating: + %% essentially declaring: +\begin{quote} +% \small +%%%%%%%%%%%%% $ \oplus ~ \oplus ~~~$ +$ \oplus \oplus ~~~$ + ``There +%is +exists +no +Hilbert-style proof of 0=1 from the union of the Group-0, 1 and 2 +axioms with {\it THIS SENTENCE} (referring to itself)''. +\end{quote} +\end{description} +%{\bf CLARIFICATION:} +{\bf Clarifying $ \oplus \oplus$'s Meaning:} + $~$Several of our articles +\cite{ww1,ww5,wwapal,ww9} +employed +self-referential + $\Pi_1^{ANC}$ constructions, +similar +to +%%%%%%%%%the sentence + $ \oplus \oplus \,$ +as Example \ref{ex-2.5} had mentioned. +%% +%% whose +%% % precise implications were outlined in +%% significance was explained by +%% %formalized by +%% Example \ref{ex-2.5}. +%% +A reader can find +several +%detailed +slightly different + illustrations about how +$~ \oplus \oplus ~ $ +% $\, \oplus \oplus $'s +% self-referential statement +is encoded in these articles. + + +% +% Each of these articles provide examples of +% how analogs for +% $\, \oplus \oplus $'s +% self-referential +% statement +% are encoded. + + + +% If the reader wishes to see +% a formal encoding for +% $\, \oplus \oplus $'s +% %self-referential +% % Fixed-Point +% statement, +% %it +% one such example +% is provided by +% \cite{wwapal}'s +% Lemma 1. +% + + +\begin{deff} +\label{def-3.9x10} +\rm +Let $~I(~\bullet~)~$ denote +an operation that maps +an initial axiom basis $\, \beta \,$ onto an alternate +system $\,I(\beta)\, $. +(One example of +such an operation is the + ISCE$( \, \bullet \, )$ +framework, +that maps +an initial axiom basis of + $~\beta~$ onto +the alternate formalism of + ISCE$(\beta).~)~$ +Such an operation $~I(~\bullet~)~$ +is called {\bf Consistency Preserving} +iff $\,I(\beta)\, $ is consistent whenever +the union of + $\beta$ with the Groups 0 and 1 axiom schemas is +consistent. +\end{deff} + + +%Most of our research in +% \cite{ww93}-\cite{ww14} +% has + +Several of our research projects +%centered around +had employed + \dfx{def-3.9x10}'s +framework. +For instance, +%% +%% the +%% +%% +%% Its +%% %%% main +%% % central +%% focus in +\cite{wwapal} +demonstrated +%consisted of showing + the ISCE$( \, \bullet \, )$ +mapping was consistency preserving. +Thus if PA+ denotes the extension of +Peano Arithmetic that +includes +PA's traditional Addition and Multiplication +functions +%% +%% 1n addition to the conventional +%% functions of addition and multiplication +%% contains +%% +%% +plus $L^G\,$'s six +added +%previously mentions + Grounding-level function +primitives, +%functions, +then + ISCE$( \, $PA+$ \, )$ +will +be automatically +%be + consistent +(because PA+ was consistent). +% consistent whenever PA+ is consistent. +Hence while Peano Arithmetic is unable to +verify its own consistency (on account of G\"{o}del's +seminal 1931 discovery), it is sufficiently agile to +prove the following relative-consistency statement: +\begin{center} +%% \small +$\#~~~$ If PA is consistent then + ISCE$( \, $PA+$ \, )$ is + self-justifying. + \end{center} +This +%The above +% statement + relative-consistency statement +%does offer +provides +a partial +positive +answer to +the +Q-2 version of Hilbert's Second Question. +%This is because it formalizes one respect +It +captures +% Brad change encapsulizes +one +% positive +respect +in which +%such as +ISCE$( \, $PA+$ \, )$ +can {\it appreciate} its own consistency. +This respect is, obviously, +only +of a limited nature +because $++$'s generalization of the Second +Incompleteness Theorem indicates +that +no Type-S arithmetic +can +% simultaneously +recognize +% {\it both} +its Hilbert consistency and +take +successor +to be + a total function. +%The consistency-preservation property of +% ISCE$( \, \bullet \, )$ +%dies, however, +It does, however, + raise the following +enticing + question: +\begin{quote} +$\# \, \#~ $ +Can the infinite number of +distinct + constant symbols, employed by +ISCE's Group-Zero schema, be reduced to a finite size +by a Type-NS Self-Justifying Logic, +without resorting to \cite{wwapal}'s inefficient +``ISINF'' +methodology (which requires +a proof +having an expensive + $\Omega(N)$ length for constructing integers $N$ +whose binary encoding uses $O(~$Log$(N)~)$ bits) ? +\end{quote} +The remainder of this section will outline how an encouraging +answer to +$\, \# \, \# \, $'s query +is likely to +%%%should, +% conveniently +arrive, +%be plausible +when one +% carefully +%delicately +modifies ISCE's formalism +with the Q-function operative of $~\zzthe~$. + +\begin{deff} +\label{def-3.10} +\rm +Let $L^Q$ +% once +again denote the extension of +$~L^G\,$'s Grounding language that includes +the +% further + Q-function symbol of $\, \theta $. +Then +$\Delta^Q_0$, + $\Pi^Q_n$ and $\Sigma^Q_n$ +will, +intuitively, +%similarly + denote the +% 1-to-1 +analogs of +\dfx{def-3.8}'s +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ and $\Sigma^{ANC}_n$'s +formulae +in $~L^G\,$'s language. +In particular, if $~\Phi~$ +is one of an +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ or $\Sigma^{ANC}_n$ +formula, +then +% the formula +$~\Phi^Q~$ +will be called +% respectively +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +when +%if +it +differs from $~\Phi~$ +only +by + replacing each constant $~C_J~$ +from the set $~C_3,C_4,C_5...~$ +with Line \eq{ej-def}'s +% mathematically equivalent term of +term $~E_{J-1}~$. +\end{deff} + +\parskip 2pt + +%% 444444444444444 + +\begin{example} +\label{ex-3.11} +\rm +Suppose $~\Phi$ +is one of a +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ or $\Sigma^{ANC}_n$ +sentence that employs the three constant symbols +of $C_4$, $C_6$ and $C_{10}\,$ +for + representing the +three numbers +of 8, 32 and 512. +Let us recall +that + $E_3$, $E_5$ and $E_9\,$ +% do +formulate these three quantities +under Line \eq{ej-def}'s notation. +Then $~\Phi^Q$ will have an +identical definition as + $~\Phi$ +except each $C_j$ is replaced by +$E_{j-1}$. + + +A formula is, +moreover, + defined to lie in one +of the +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +classes +{\it only if} it is constructed in such a manner. +This fact +% brad assures +ensures +that all the terms employed in these +three classes of sentences are +{\it ``Observable''} terms. +Hence ``Unobservable'' ground terms are allowed in +$~L^Q\,$'s language, but {\it they are excluded} +from occurring in the +{\it ``end-product''} +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +theorems +that +%%will now be discussed. +%it proves ! +do +encapsulate +%formalize + the {\it intended use of +%its +this +formalism.} +\end{example} + +\begin{deff} +\label{def-3.12} +\rm +The term {\bf IQFS($ ~\bullet~$)$~$} refers +to the self-justifying analog of + ISCE($ ~\bullet~$)$~$ +%that will be employed +under $L^Q\,$'s +language. +(The acronym ``IQFS'' stands for +``Introspective Q-Function Semantics''.) +In a context where $~\beta~$ is +%some i +an initial axiom +system that proves theorems +%under +in +the +language $L^Q$, the +system +%formalism + IQFS($ \, \beta\,$) +%$~$ +will +be defined as a + 4-part +formalism, +analogous to ISCE($\beta$), +except for the following +%relatively modest +changes: +\bed +\parskip 0pt +\item[ a. ] +The Group-Zero schema of + IQFS will +differ from ISCE's analog +by replacing +\el{addcov}'s ``Additive Naming'' schema with +the +Up-Walking axioms, +given in Lines \eq{walk1}--\eq{walk4}. +(This is because +the language $L^Q$ differs from + $L^{ANC}$ by +having the + Q-function operator of $~\zzthe~$ +define the formal quantities that are represented by +the constant symbols +of $~C_3,C_4,C_5~~....~$ +under $L^{ANC}.~~)$ +Otherwise both +these +Group-Zero +schemes will be +identical. +Thus, + they +will +both +use \el{start}'s axiom to define the +three initial constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,~$. +\item[ b. ] +The Group-1 scheme of IQFS will be identical to ISCE's counterpart +except it will reflect Item a's modification of the Group-Zero +scheme for $\, L^Q\,$'s revised language +(e.g. +the footnote \footnote{\f55 +In a context where a $\Pi_1^Q $ sentence is +called ``Simple'' +when it contains no $~E_j~$ term with $~j \geq 2~,~$ +the Group-1 scheme of IQFS will be analogous to +ISCE's counterpart by consisting of + any finite set of +simple $\Pi_1^Q $ axioms, called $~S^*~,~$ +that is consistent with Group-zero schema and +which + has +the following properties: +\bee +\item + The union of $~S^*~$ with IQFS's Group-Zero +axioms +will be capable of proving all $\Delta^Q_0 $ +statements which are true. +\item + The union of $~S^*~$ with IQFS's Group-Zero +scheme +will also be capable of proving +that +the ``=" and + ``$\leq$" predicates +support their conventional +transitivity, reflexivity, symmetry and total ordering +properties. +\ene +The above two properties are the 1-to-1 analogs of +their counterparts used by ISCE's Group-1 scheme. +As was the case with ISCE's formalism, +any finite set +of simple +$\Pi_1^Q $ axioms +with the above properties can be used to define $~S^*~.~$ +Once again, +it is unimportant which +particular +finite-sized +definition for $S^*$ +% such set +is used.} describes +such a +%the +resulting +%% quite + straightforward revision of +the Group-1 scheme.) +\item[ c. ] +All the $\Pi_1^Q$ axioms lying in IQFS's +%Group-1 and +Group-2 scheme will be identical to their counterparts +under ISCE, except they +will + employ +\dfx{def-3.10}'s machinery for translating + $ \,\Pi_1^{ANC} \,$ +sentences into their equivalent + $ \,\Pi_1^Q \,$ counterparts. +\item[ d. ] +The Group-3 axiom of IQFS +will be similar to ISCE's Group-3 +{\it ``I am consistent''} +axiom-statement, except +the latter's notion of ``I'' will reflect the above +changes in the Groups 0, 1 and 2 schemes. +It +%Thus, the new +%Group-3 axiom +will, +thus, +be a $\Pi_1^Q$ sentence declaring that +{\it ``There is no +Hilbert-style +proof of 0=1 from the union of the preceding axioms +with THIS SENTENCE (looking at itself)''.} +\ennd +\end{deff} + +The properties of IQFS + are +interesting +% especially intriguing +from a +% Computer Science +Complexity perspective +because +\phx{th-3.3} showed +% that +every integer $\,n\,$ +can +%could +be encoded +%under it by +by +%via +a + term $T_n$ that has an $O\{~[~$Log$(n)~]^3~\}$ length. +This is +unlike the +%much +%%%%%%%%%% far worse +asymptote $\Omega(n^2)$ that results +when the +$~\zzthe$ primitive +(from Lines \eq{walk1}-\eq{walk4}) +is replaced by +Lines \ref{zm1} and \ref{zm2}'s +less efficient +primitive of +$~\glamb~$. + + +% function + + +%% It +%% is +%% also +%% almost +%% as good as the +%% %encoded +%% $O\{~$Log$(n)~\cdot ~ $LogLog$(n)~\}$ length +%% that ISCE produces. +%% % while +%% Moreover +%% IQFS,$~$ {\it unlike ISCE,$~$} +%% requires only a finite number of constant symbols +%% to define any +%% %starting +%% integer $N$. + +%In other words, the + + +An open question of fundamental interest is whether or not +IQFS framework is +% fundamentally +analogous to ISCE by also +satisfying +Definition \ref{def-3.9x10}'s Consistency Preservation property. +The +% close +similarity between the definitions of these two +axiomatic frameworks + strongly +suggests that +\cite{wwapal}'s proof of ISCE's consistency preservation +property +%should +ought to +be extensible to IQFS. + +The first half of our 2-part conjecture is, +%thus, +the presumption + that IQFS +does have this +desirable +characteristic. (Unfortunately, we suspect a +formally +rigorous proof of +this consistency preservation property + will be +% much +%significantly + more +complex +%complicated +than +it was for +ISCE's +analog in Theorem 3 of \cite{wwapal} +because a more complicated mathematical infrastructure will +be needed to overcome certain bottle necks that would +otherwise arise during the +proof.) + + +%% More will be said about this conjecture +%% in +%% + +If +our conjecture +does hold then IQFS will be +% much +substantially +more germane to the +goals that Hilbert sought in statement $*$ than +was ISCE. +This is +because the former framework +differs from the latter by + needing only three starting constants, +representing the integers of 0, 1 and 2, in order to +construct the +full +infinite span of integers $~3,4,5,~...~$. + +%\bigskip + +\smallskip + +Moreover, +our conjecture that IQFS will +duplicate ISCE's consistency-preservation property is based on +more than the analogous definitions between these two frameworks. +It is also because Item $++$'s + Pudl\'{a}k-Solovay +generalization of the Second Incompleteness Theorem +% +% (from the Item $++$ given +% in Example +% \ref {ex-2.3} ) +% is +% proven +% by Appendix A +% +is demonstrated by the Proposition A.1 +(in Appendix A) +to be inapplicable to + IQFS's formalism. +It is within this combined context that IQFS formalism +seems to +become especially enticing, when it +differs from ISCE by needing only three starting constant +symbols to construct the full infinite range of integers. + +%from a purely finite basis. + + +\parskip 2 pt + +\section{Second Half of our 2-Part Conjecture} + +\label{ss6} + +Both the virtues and drawbacks of \textsection \ref{ss5}'s +conjecture +are highlighted by Proposition \ref{th-3.3}'s +characterization of +the $O\{~[~$Log$(n)~]^3~\}$ +%invariant for +quantity of logical symbols +used for encoding +% needed to to encode +an integer $~n~$ as a + grounded term + $T_n$. +Thus, +this + amount is clearly +%much +significantly + better than the alternate +$O(~n^2~)$ +length +that arises when the $~\theta~$ function symbol +is replaced by the less efficient primitive +$~\glamb~,~$ +%%%%% operator +defined by Lines +\eq{zm1} and \eq{zm2}. +On the other hand, one would ideally +prefer our ground terms to resemble the conventional encoding +of a binary number that uses + $O\{~$Log$(n)~\}$ +logical symbols to encode an +arbitrary number $~n~$. + +It turns out it is possible to improve +Proposition \ref{th-3.3}'s encodings +to such a compressed $O\{~$Log$(n)~\}$ size, +if one adds only a minor +wiggle to the logic's notation +%%%%%%%%%%%%%%%%%% conventions +convention. +This distinction arises because most traditional +logic +languages +% , as typically formalized in textbooks, +will +formalize +% both conventional terms and +Definition \ref{def-3.4}'s +``Ground terms'' +as tree-like structures. +An +easy +alternative modification of this +%perspective +construct +will +% would +allow these terms to +own the more general structure of +a Directed Acyclic Graph (Dag). + +% Kozen has noted ????. +%some computer scientists have noted. + +This distinction has been +traditionally viewed + as an unimportant +wrinkle +%issue +because it can be +readily +%easily +proven that every Dag-oriented term can be +converted into its Tree-oriented counterpart with +merely a +% only an usually unimportant +Polynomial increase in space. +The reason for our special interest in an +alternate Dag-formulated +%distinction +%between a Tree-oriented and Dag-oriented +base-language for logic +is that the latter +ushers in + more efficiently encoded Ground terms. +Thus, Proposition \ref{th-6.1} +will +indicate +that +Proposition \ref{th-3.3}'s earlier + ground terms can +have their lengths + compressed from an +$O\{~[~$Log$(n)~]^3~\}$ +to an $O\{~$Log$(n)~\}$ +magnitude in a Dag context. + +%in the latter context. + + +\begin{propp} +\label{th-6.1} +% \rm +Let us consider a Dag-analog of +\textsection \ref{ss4}'s formalism where one again: +\bee +\item +$\theta$ is the only available growth permitting function symbol, +\item +the only built-in constant symbols are the +entities + $~C_0~$, $~C_1~$ and $~C_2~$ +for representing +the values of 0, 1 and 2, and +\item +three function symbols for +representing + integer-subtraction, integer-division +and the maximum operation +are, once +again, available. +\ene +%Within this notation, +In this context, +any integer $~n~$ can be encoded +by a Dag-oriented Ground term +$~T_n^*~$ +using only + $O\{~$Log$(n)~\}$ logical +symbols. (As the pointers needed to +separate these $O\{~$Log$(n)~\}$ logical objects +will have encodings using + $O\{~$LogLog$(n)~\}$ bits, the total amount of +memory to encode a + Dag-oriented Ground term will require + $O\{~$Log$(n)~\cdot ~~$LogLog$(n)~\}$ bits.) +\end{propp} + +The proof for Proposition \ref{th-6.1} +rests essentially on a more elaborate version of the +argument that \textsection \ref{ss4} +used to justify Proposition \ref{th-3.3}. +It +% essentially rests on +uses +the fact that +Proposition \ref{th-3.3}'s ground term $T_n$ +will have +% has +many repeating subterms that can be compressed into +% one +single objects under a Dag-style notation. +%% +%% Our +%% %We supply in the attached +%% $\, 1 ~\frac{1}{2} \,$ page +%% proof in +%% +Appendix B provides +a $\, 1 ~\frac{1}{2} \,$ page +formal proof +about how +%the +a more +nicely +compressed object $T_n^*$ +can be encoded +using only $O\{~$Log$(n)~\}$ logical symbols. + +Let IQFS$^*$ denote the analog of our +IQFS framework that has +Proposition \ref{th-6.1}'s + Dag-oriented Ground Terms replace + \textsection \ref{ss4}'s earlier +Tree-oriented Ground Terms +in an accordingly revised language. +The second half of our 2-part conjecture is that there is no +difference between + IQFS$^*$ and +IQFS + from the perspective of +Definition \ref{def-3.9x10}'s +Consistency Preservation property. +Both these formalism are thus anticipated to +be analogous to \cite{wwapal}'s ISCE +framework, insofar as + IQFS$(\beta)$ and IQFS$^*(\beta)$ +will be consistent whenever +the union of + $\beta$ with the Groups 0 and 1 axiom schemes is +consistent. + +Although + IQFS$^*$ and +IQFS will +possess + similar properties under the second half of +our 2-part conjecture, the distinction between these +two formalisms should not be viewed as inconsequential. +This is because the Ground terms in the + IQFS$^*$ use $O\{~$Log$(n)~\}$ logical symbols, +similar to the classic encodings of an integer $~n~$ as +a binary number. Thus, our conjecture about the self-justifying +properties of IQFS$^*$ +will be more meaningful than its analog +for IQFS +(because IQFS$^*$ possesses +%% owns +much greater levels of efficiency). + + +%is much more efficient. + +%\end{document} + + + +\section{On the Epistemological Significance of Our 2-Part Conjecture} +\label{ss7} + +\parskip 2pt + + +All our published articles +(since 1993) + about self-justifying arithmetics +have emphasized that our evasions of the +Second Incompleteness Effect rested upon using arithmetics +that were much weaker than traditional arithmetics in, at least, +some +particular +well-defined respects. The attached Appendix A +has emphasized +that there are good reasons for conjecturing that IQFS satisfies +a consistency-preservation property similar to ISCE, but this +does not reply to a second question that many +researcher +% will +may + want +to have + addressed. + +% skeptics may initially raise. + +% will +% understandably +% not, by itself, change many reader's skepticism +% about employing forms of arithmetic that are weaker than its +% traditional counterparts. + +It concerns the fact that our proposed IQFS formalisms +%even more controversial is that they are what +employs what +\textsection \ref{ss4} calls a +``Double-Formatted'' logic, where a +ground-term can correspond to either +what Definition \ref{def-3.5} +calls an + ``Observable'' +or an + ``Unobservable'' +object. + The latter will possess no +fully + evident meaning +because +% our mathematical notation allows an +Unobservable ground-terms +can +%possess +represent any of +multiple different +allowed values. +%meanings. +Many +researchers +will thus wish +to +% have +receive +a reply to +% thus raise +the following +%skeptical +resulting +question: +% +% to be +% addressed: +% answered: +\begin{quote} +\it + $ \bullet ~~~$ +Does +% not +the presence of +``Unobservable'' ground-terms in +the language of IQFS cause it +to lie fundamentally outside the domain +of modern mathematical logic +(thus making its partial evasion of the Second Incompleteness +Theorem +mostly + irrelevant) ? +\end{quote} +Our +% +% positive +reply to $ \, \bullet \,$'s skeptical inquiry +has two quite +positive +% distinct +facets. +% +% will have +% two +% % equally important +% %parts. +% very positive +% aspects. +% % facets. +% +It is given below: +\bee +\parskip 0pt +\item +% Our +Propositions +\ref{th-3.3} and \ref{th-6.1} have +illustrated how +%emphasized that each +every +integer $~n~$ can be represented by a ground term $T_n$ +with two +%%%%% +distinctly +different forms of efficiency. +% different permissible types of efficiency. +%Moreover our +In this context, +Definition \ref{def-3.10} +and Example \ref{ex-3.11} +have noted that our language $L^Q$ is sufficiently +agile so that each of $L^{ANC}\,$'s +$\Pi_n^{ANC}$ +sentences can be directly translated into +their equivalent $\Pi_n^Q$ counterparts. The presence of +``Unobservable'' objects + in $L^Q$ +% +is +thus +% has +no major +drawback +% disadvantage +because +% when +all the conventional arithmetic objects from + $L^{ANC}$ have efficient translations in + $L^Q\,$'s language. +\item +Moreover, there is an added sense where it is +propitious +% nice +that $L^Q$ +utilize +% possesses + {\it both} +``Observable'' and ``Unobservable'' ground-terms. +This is because human +beings, + in their common colloquial verbal languages, +use +references to + ambiguous linguistic objects in their everyday +mundane + speech habits +(similar to ``Unobservable'' ground-terms). +% and logical sentences that possess such ambiguities). +Thus assuming our 2-part conjecture is +correct, our proposed IQFS +formalism + will own the +pleasing +simultaneous abilities to: +\bed +% \baselineskip = 1.05 \normalbaselineskip + \baselineskip = 1.1 \normalbaselineskip +% \small +\parskip 0 pt +\item[ a. ] +verify its +% (his) +own consistency, +\item[ b. ] +prove analogs of all of Peano +Arithmetic's $\Pi_1$ theorems +(despite the fact it starts with only +$C_0~$, $C_1$ +and $C_2\,$ as +its +% three + initial constant symbols), and +\item[ c. ] + resemble the ambiguity +that humans display when attempting to decipher the meaning +of human-type +language +objects (in that Unobservable ground-term +contain a level of built-in ambiguity +that is + analogous to +many mundane +colloquial objects, that typically lack full specification +% inherent levels of ambiguity +under an +ordinary +conventional +human language). +% +% sentences, that lie outside the domain of formal mathematics +\ennd +\ene +The combination of Items 1, 2a, 2b and 2c thus suggests +that +some perhaps + 5-10 \% +fragment of +the aspirations that +Hilbert and G\"{o}del +had +expressed +in statements $*$ and $**$ +% thus +can be positively acheived +(within the obvious context where +the initial objectives of Hilbert's Consistency Program +were definitively shown to + have been over-ambitious by the Incompleteness +Theorem). + + +%% The current paper will be possibly the last paper I publish about +%% self-justifying logics in a context where it is being submitted +%% for publication when I am over 66 years old. I would therefore +%% like to answer two other further questions that a reader may have +%% about self-justifying logics in the Remarks 7.1 and 7.2 below: + +\medskip + +It +also +should + be mentioned that the infinite +number of axiom +sentences, + appearing in the Group-2 schemas +for ISCE$(\beta)$, IQFS$(\beta)$ and IQFS$^*(\beta)$, +can be +% should be able to be +nicely + reduced to a +purely +finite size, with almost no loss +in +%of useful +information. This was done in \cite{ww14} +for the Group-2 +scheme +of its IS$_D(\beta)$ formalism, +with the latter +%%%%%%%%%%%%%%%% still +%where the +% +% germane Group-2 scheme was +% reduced to one +% single axiom sentence +% while the resulting +% +% latter +%formalism still +% produced +producing +isomorphic counterparts +of all of $~\beta \,$'s +full set of + $\Pi_1$ theorems +(e.g. see Sections 5 and 6 of \cite{ww14}). +The same methods will +% trivially +routinely +generalize for the +% +% Analogs of the techniques from Sections 5 and 6 of +% \cite{ww14} +% % will easily +% apply to each of the +% +ISCE, + IQFS and IQFS$^*$ frameworks, if our 2-part conjecture +does hold true. + + +% 777777 + + +\section{Summary of Results} +\label{ss8} + +\baselineskip = 1.21 \normalbaselineskip +% \parskip 2pt + +\parskip 4pt + +The +% importance +% % significance +% of the +Second Incompleteness Theorem's +%important +%underlying +vital significance +% implications +in establishing a +90-95 \% +refutation of the objectives of +Hilbert's Consistency Program +% are, +is, +of course, undeniable. It would, nevertheless, be of interest if +some 5-10 \% +fragment of +%its +Hilbert's + initially intended + objectives +% +% that Hilbert and G\"{o}del set forth in +% their +% statements $*$ and $**$ +% +was +%were +%could be +partially + achieved. + +This is because it is difficult to fathom how human beings +can +maintain +their psychological motive to engage in cognition without owning some +type of qualified instinctive faith in their own consistency. +Moreover, the close similarity between the defining structures of the +ISCE and IQFS frameworks strongly suggests +\cite{wwapal}'s proof of ISCE's consistency preservation property +should generalize for both +IQFS and + IQFS$^*$ under a more elaborate +% and sophisticated +inductive machinery. +Such a self-justifying arithmetic +would be of interest +%is very satisfying +% be very tempting +because it would be +supportive of each of +the invariants of +1, 2a, 2b and 2c +listed in Section +% from +% \textsection +\ref{ss7}. + + +%More precisely, + +This is because + if IQFS satisfies an analog of +ISCE's consistency preservation property (as we conjecture), +then IQFS(PA+) would be +% a +philosophically +%interesting +curious. +% +% This is +% % formalism +% % +% % response +% % to the open questions raised by Hilbert and G\"{o}del +% % in $*$ and $**$ +% % +% because IQFS(PA+) would +% % then +% +It would then +be a self-justifying +% arithmetic +logic +which +% that +proves +% +all +Peano Arithmetic $\Pi_1^Q$ theorems, that +% which +is +% {\bf NOT MUCH HARMED} + {\it NOT MUCH DILUTED} +by the presence of unobservable +ground terms in $L^Q\,$'s language (because such +unobservables +%%%%% do {\it never physically appear} in +% do +{\it never formally appear} in +IQFS(PA+)'s end-product $\Pi_1^Q$ theorems). + + +%. and it would thus be very tempting. + + +The importance of $++$'s generalization of the +Second Incompleteness Effect, due + to the joint work of + Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +% \cite{Ne86,Pu85,So94,WP87}, +has been repeatedly +emphasized. +%mentioned in this article. +% +%has been repeatedly emphasized and +%cannot +% can never +% be understated. +It demonstrated conventional Type-S arithmetics +cannot verify their own +Hilbert +consistency. +It is for this reason that +our examination of self-justifying logics has focused +on arithmetics where either: +%our subsequent research explored +%arithmetics with: +%% +%% For instance, +%% this vital invariance +%% was +%% %has been +%% cited, in detail, +%% % mentioned +%% in all our published papers +%% except \cite{ww93}, +%% (The latter article could not cite +%% this topic because our +%% 1994 +%% telephone conversations with +%% Robert Solovay +%% stimulated Solovay's observation about +%% hybridizing \cite{Pu85,Ne86,WP87}'s +%% formalisms to establish \cite{So94} +%% that no +%% %% +%% %% \cite{ww93} was published.) +%% %% +%% %% had taken +%% %% place +%% %% that +%% %% %he +%% %% Solovay +%% %% \cite{So94} +%% %% %began +%% %% %in 1994, that Solovay +%% %% %%%%%%%%%noted +%% %% %%%%%%%%%1 +%% %% observed +%% %% % in 1994 +%% %% % he know +%% %% how +%% %% % to extend +%% %% the work of +%% %% Pudl\'{a}k Nelson and Wilkie-Paris, +%% %% \cite{Pu85,Ne86,WP87} +%% %% implied +%% %% %show +%% %% all +%% %% natural +%% %% +%% natural +%% Type-S axiom systems +%% %are +%% can corroborate its +%% % were +%% % unable to verify their +%% own Hilbert consistency.) +%% It is within this context that our research has explored two +%% methods for constructing self-justifying logics where +%% either: +%% % +%% % types of formalisms where an formalism +%% % $~\alpha ~$ +%% % can partially +%% % corroborate its own consistency where either: +%% % +%% +\bed +\parskip 1pt +\baselineskip = 1.2 \normalbaselineskip +\item[ I. ] +a system $~\alpha~$ +% Can +does +corroborate its own consistency +under +both + semantic tableaux deduction and its + Tab(1) +generalization +%in a context where + when +it +% formally +views +%under +%\cite{ww14}'s notion of +% ``Type-A'' formalisms that view +% +%%% addition as a total function and +multiplication +formally as a 3-way relation +(as +was + encapsulated by \cite{ww14}'s +summary of + \cite{ww93,ww1,ww5,ww6}'s +% \cite{ww93,ww1,ww5,ww6,ww9}'s +results). +\item[ II. ] +or alternatively +a system + $~\alpha~$ recognizes its +own Hilbert consistency +in a context where it +is a ``Type-NS'' logic +that views +{\it BOTH} + addition and multiplication as +being 3-way relations. +% (instead of being +% total functions). +\ennd +It is within the context of Topic II where our +IQFS(PA) and + IQFS$^*$(PA) frameworks are conjectured to be +self-justifying +arithmetics +% that are + capable of proving +% isomorphic counterparts of all of +all Peano Arithmetic's $\Pi_1$ theorems. + +\smallskip + +% arithmetics, capable of proving analogs of +% Peano Arithmetics $\Pi_1$ theorems translated into the +% language of $L^Q$. + +Such an approach will be no full remedy +%%%% rrremm +% +% Such a perspective will +% have only limited advantages +% %be no panacea +% +when the +traditional growth properties of the addition, +multiplication and successor function operations are replaced +by an +alternative $~\theta~$ function symbol, +with its +% surprising +use of +a surprisingly modified +% an + ``indeterminate'' function definition. +It does, however, suggest that +{\it a well-defined fragment} of what Hilbert and +G\"{o}del sought in statements $*$ and $**$ +% is, alas, feasible in some +should be +likely + feasible under +some special theoretical +circumstances, +that are +%%%% of +%% , at least, +% quite +%limited but +partially +tempting +% significance +on account of +% our + Propositions +% \ref{th-3.3} and \ref{th-6.1}. +\ref{th-3.3}, \ref{th-6.1} and A.1. + + + +Thus, our 2-part conjecture +raises the prospect of +a +logic +%formalism +simultaneously recognizing the +% +% results can simultaneously +% recognize the +% +% % undeniable +central +and crucial +role of the Second Incompleteness Theorem +in +modern +mathematics, +%mathematical logic, +while also postulating how +%a +% thinking +human +beings can +formalize +% formally own +enough of +a {\it fragmented knowledge} +about +their +%his/her +own +internal +consistency +% for it +to gain +% for gaining +%acquiring +the psychological stamina +% to allow it +% needed +for +motivating +% engage in +cognition. + +% In other words, \textsection \ref{ss4}'s crucial + +\smallskip + +This is +%ultimately + because \textsection \ref{ss4}'s +% notion of +discussion about + Double-Formatted arithmetics +illustrates +%suggests +how +to separate the +crucial + notions of ``Observable'' and + ``Unobservable'' ground terms, so +that +% one can recognize +%postulate how to +% {\it simultaneously} +the historic +% importance +significance +of the +Second Incompleteness Theorem +is +potentially +compatible with +% and that +% while also +%%while +% also +%% appreciating that + a {\it partial fragment} of +the aspirations +% +% that +% %the Y that +% Hilbert and G\"{o}del +% %% raised +% % +% expressed +% in $*$ and $**$. +% +$*$ and $**$ of +%that +%the Y that +Hilbert and G\"{o}del +being realized. + +\medskip + +{\bf Acknowledgments:} +%%%%As several Sections 1-4, +%\textsection \ref{ss2}, +I am +% much +%very +grateful to +%was influenced by an emailed letter from +Pavel Pudl\'{a}k +for suggesting +\cite {Pupriv} +I investigate how to apply +% an analog of +Ajtai's study +\cite{Aj94} of Pigeon-Hole effects +for +refining my prior results about self-justifying logics. +(The combination of + Pudl\'{a}k's +insightful suggestion +% \cite {Pupriv} +and our +subsequent +% further + distinguishing +between the +$~\glamb ~$ and $~\theta~$ operators +has led to the +conjectured + improvement of +\cite{wwapal}'s ISCE formalism.) +% I am very grateful to Pudl\'{a}k for making this +% suggestion. +I also thank Bradley Armour-Garb for +% many +several +comments about how to improve +% the +this paper's +presentation. + +% in this article. + +\small +\parskip 2 pt + +\baselineskip = 0.92 \normalbaselineskip +\baselineskip = 0.80 \normalbaselineskip +\bibliographystyle{abbrv} +\bibliography{aa} + +%\setlength{\textwidth}{5.0 in} + +\gvs + +\parskip 0 pt + +\section*{Appendix A: An Added Justification for Our Conjecture} + +\parskip 3 pt + +Section \ref{ss5} indicated that +our conjecture that IQFS will +duplicate ISCE's consistency-preservation property was based on +more than the analogous definitions between the +IQFS and ISCE frameworks. +It was also because the + Pudl\'{a}k-Solovay +generalization of the Second Incompleteness Effect +(from the Item $++$ given +in Example +\ref {ex-2.3} ) +can be + proven + to be inapplicable to + IQFS's formalism. +This is because our Proposition A.1 below +demonstrates that the union of the Groups 0, 1 and 2 +axioms of IQFS(PA+) are unable to prove that successor is +a total function. + +{\bf Proposition A.1} +{\it +Let $~\beta~$ denote any +consistent + extension of +Page 16's axiom system PA+ +% (employing the $L^G$ language) +that serves as the input argument for the ISCE($\beta$) +and IQFS($\beta$) formalisms. +Then the union of the Groups 0, 1 and 2 axiom schemes for +IQFS($\beta$) are unable to prove that any of the operations +of successor, addition and/or multiplication are total functions. +Hence, extensions of these three groups of axioms are not precluded +from verifying their own consistency by $++$'s generalization of +the Second Incompleteness Effect.} + + +{ +{\it Proof:} +Our article + \cite{wwapal} +showed + ISCE($\beta$) +was a consistent self-justifying axiom +system whenever $~\beta~$ satisfies Proposition A.1's hypothesis. +% Hence, the invariant $++$ implies that +% ISCE($\beta$) is unable to confirm that successor is a total function. +It then easily follows that there exists a +non-standard +model $M_b$ +for ISCE($\beta$) +that contains some non-standard +integer $b$ which represents some power +\newline +of 2. + +Let $M_b^b$ +denote the subset of the model $M_b$ +which consists of the set of integers that are +no larger than $b$. +Then $M_b^b$ is also a model of + ISCE($\beta$) because the latter axiom system contains no growth functions. + +Now let us define a function operator $~\theta~$ so +that +\bee +\item $~~\theta(x)~=~2x~~$ when $x$ is a standard number which is power of 2. +\item $~~\theta(x)~=~\frac{x}{2}~~$ when $x$ is a non-standard number which is power of 2. +\item $~~\theta(x)~=~0~~$ whenever $x$ is not a power of 2. +\ene + Also, let $N_b^b$ +denote a model identical to $M_b^b$ +except that $N_b^b$ + contains the added function symbol of $\theta$. +It is easy to show that + $N_b^b$ + is +a +model for the Groups 0, 1 and 2 axioms for + IQFS($\beta$) + formalisms because Items 1-3 imply that +$~\theta~$ will satisfy Lines + \eq{walk1}-\eq{walk4}'s four ``Up-Walking'' requirements. +Moreover since the element $~b~$ owns no successor under the model + $N_b^b$, our proof has shown that + Groups 0, 1 and 2 axioms for + IQFS($\beta$) do not imply that successor is a total function. +Hence $++$'s generalization of the Second Incompleteness Theorem +does not apply to this set of axioms +(because +these three groups of axioms + can be formalized by +a model that fails to recognize +successor as a total function). + $~~~\Box$ + +\smallskip + +It is useful to close this appendix with the reminder that +Proposition A.1 does not formally prove the consistency of + IQFS($\beta$). +It merely makes this prospect look likely +because it demonstrates no +% analog +counterpart + of $++$'s machinery applies +to IQFS($\beta$). +It is for this reason that we conjecture that + IQFS will +duplicate ISCE's +analogous +consistency-preservation property. + + + +% \newpage + +\section*{Appendix B: Providing Proposition \ref{th-6.1}'s Proof} + + +Our proof for Proposition \ref{th-6.1} +will rest upon +an essentially more elaborate version of the +\textsection \ref{ss4}'s proof for +Proposition \ref{th-3.3}. +It will use the fact that +Proposition \ref{th-3.3}'s ground term $T_n$ has +many repeating subterms that can be compressed into +single objects under a Dag-style notation. + +Throughout our proof of Proposition \ref{th-6.1}, +$~G~$ will denote our Directed Acyclic Graph (Dag), +and +the symbol $~M~$ will be an abbreviation for +$~\lceil~1\, + \, $Log$_2(n)~\rceil~$. +This directed graph will consist of approximately +$~5 \, \cdot \, $Log$(n)~$ nodes. +The first five of its six groups of nodes +in $G$'s graph +are defined below +in roughly +% bottom-to-top order: +bottom-up order: +\bee +\item The bottom nodes in $G$'s +graph +will be the three +built-in constant symbols of + $~C_0~$, $~C_1~$ and $~C_2~$ +that represent +the values of 0, 1 and 2. +%\ene +%\end{document} +\item +Let + $~\zzthe^j(x)~$ +denote the term + $~\zzthe(~\zzthe(~ ... \zzthe(x)))~$ +where there are +$~j~$ iterations of the + $~\zzthe~$ operation. +For each $~j \leq M\,$, the next $j$ levels of +$G$'s directed graph will define +nodes $A_j$ that formalize the quantity + $~\zzthe^j(1)~$. In a context where +$~A_0~$ +is an abbreviation for $~C_1~$, +the remaining $A_j$ are defined by: +\beq +A_j ~~ =~~~ \zzthe(~A_{j-1}~) +\enq +\item +For each $~j \leq M\,$, let $B_j$ +denote the value of Max$(A_0,A_1,A_2,...A_j)$. +In a context where +$~B_0~$ +is an abbreviation for the entity $~C_1~$, +the remaining $B_j$ are defined +chronologically in $G$'s directed graph by: +\beq +B_j ~~ =~~~\mbox{Max}(A_j,B_{j-1}) +\enq +\item +For each $~j \leq M\,$, let $D_j$ +denote the value of $~2^{-j} \, \cdot \, B_M~$. +In a context where +$~D_0~$ +was defined by the prior entry $B_M$ in +our directed graph, +the remaining $D_j$ nodes in our graph +will be defined via \eq{usediv}'s +Division operation: +\beq +\label{usediv} +D_j ~~ =~~\frac{D_{j-1}}{2} ~~~~~~\mbox{e.g.}~~~~~~ +D_j ~~ =~~\frac{D_{j-1}}{C_2} +\enq +\item +For each $~j \leq M\,$, +the node + $E_j$ +will represent the quantity +$~2^j~$. +These nodes in $G$'s graph will +be defined by +\eq{usediv2}'s +Division operation: +\beq +\label{usediv2} +E_j ~~ =~~\frac{D_M}{D_{M-j}} +\enq +\ene + + +Some added notation is needed to describe the last part of +$G$'s graph for formalizing $n$'s representation as a +Dag-oriented ground term +employing $O \{ ~$Log$(n)~\}$ +logic symbols. + Let $T_n$ + denote +Proposition \ref{th-3.3}'s formulation of $~n~$ +as a Tree-oriented ground term, and +$T_n^*$ +denote its Dag counterpart. +Our proof of +Proposition \ref{th-3.3} noted +$T_n$ could be constructed by setting $E_M$ equal to +the least power of 2 greater than $~n~$ and +then subtracting from it +those powers of 2 which are needed to produce the quantity $n$. + +The exact same methodology will now +be used to construct +our $T_n^*$ representation of $~n~,~$ except + we +will now +obviously +use the methodologies from Items 1-5 to +assure +% that +no more than $O\{~$Log$(n)~\}$ +graph nodes are used to construct +all +\el{usediv2}'s + $E_j$ terms. +(For example since $86~=~128-32-8-2$ +%% $118~=~128-8-2$ +which in turn equals ``$~E_7-E_5-E_3-E_1~$'', + the final stage of +$G$'s construction of $T^*_{86}$ will +first + set node +$F_1$ equal to ``$~E_7-E_5~$'', +then + set node +$F_2$ equal to + ``$~F_1-E_3~$'' +and lastly have the desired +output node +$F_3$ represent the final answer as the +quantity of ``$~F_2-E_1~$''.) + +It is easy to see that this methodology will never use more +than + $O\{~$Log$(n)~\}$ logical symbols to encode + $T_n^*$ as a Dag-oriented ground term. +Moreover, the needed pointers in the Dag graph $G$ +will require no more than LogLog$(n)$ bits to +%separate its +distinguish between these + $O\{~$Log$(n)~\}$ +separate objects. +%logical symbols. +Hence +if one selects to use a pointer methodology to formulate +$G$'s graph, +then +% our full graph $G$ will need +no more than + $O\{~$Log$(n)~\cdot~$LogLog$(n)~\}$ bits +will be needed +to encode +all these pointers. $~~\Box$ + + +\end{document} + diff --git a/nachlass/collected_dew_materials/2011-2019/2015-lfcs.bak b/nachlass/collected_dew_materials/2011-2019/2015-lfcs.bak new file mode 100644 index 0000000..68a4b23 --- /dev/null +++ b/nachlass/collected_dew_materials/2011-2019/2015-lfcs.bak @@ -0,0 +1,7915 @@ +%% 2015 sept 9 after submission CHANGES ONE SENTENCE IN EXAMPLE 2.5 + +%% 2015 sept 7 2.20 pm (after finding addrees) +%% after reding conclusion to BOB +% chipped off end + + +%% www.cs.albany.edu/~dew/algor + + +%% 2015 home august 24 11.2 am + +%% 2015 home august 22 1.1 pm (single space) + + + % 2015 july 4 3.4 am after spell 10.1 am after sinatra + + % 2015 july 2 3.15 pm + +%% 2015 july 2 2.50 pm upstairs + +%% 2015 july 1 10.30 am downstairs + + + +%% notarized notes 2015 april 2 6.3 am april 4 notarize again + +%% home 2014 feb 8 1.15am (new email address) + +%% home 2015 feb6 4.3 am suny 2.40 pm home 6.15 pm + + +%% gmail dan.willard.albany and Prof.DanEdwardWillard +%% gmail password cpZ9ar48s + + +%%% SUNY JAN 11 Brad Copy 8.4 pm + +%% SUNY jan11 5/30pm spell check + +%% 2015 HOME jan 10 9.4 pm pm New Abstratct + +%% 512 6932 + +%% Towards a Restructuring of Hilbert's Consistency Program + +% www.cs.albany.edu/~dew/algor/ + +%\documentclass[11pt]{article} +%\documentclass[10pt]{article} +% \documentclass[12pt]{article} +\documentclass[12pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + + + + +% \addtolength{\oddsidemargin}{-0.95in} + \addtolength{\oddsidemargin}{-0.9in} +%\addtolength{\oddsidemargin}{-1.0in} +% \addtolength{\oddsidemargin}{-0.95in} + +\setlength{\textheight}{9.6 in} +\setlength{\textheight}{8.8 in} +\setlength{\textheight}{9.3 in} +\setlength{\textheight}{9.55 in} +%above too short + + +\setlength{\textwidth}{6.3 in} +%% PRINT + +\setlength{\textwidth}{6.0 in} +\setlength{\textwidth}{5.4 in} + + +\setlength{\textwidth}{6.9 in} +%% \setlength{\textwidth}{6.7 in} + +% \setlength{\textwidth}{6.3 in} + + +% \setlength{\textwidth}{7.0 in} + + +% \setlength{\textwidth}{7.0 in} +% Above IDeall + + +%% \setlength{\textwidth}{6.4 in} +%%%% above brad with 11 point + +%\setlength{\textwidth}{6.0 in} +%\setlength{\textwidth}{5.7 in} + +%\setlength{\textwidth}{6.4 in} + +%\setlength{\textwidth}{5.5 in} + +%\addtolength{\topmargin}{-1.0in} +\addtolength{\topmargin}{-0.95in} +%\addtolength{\topmargin}{-1.0in} +%\addtolength{\topmargin}{1.2in} + +%\addtolength{\topmargin}{-.95in} +%\addtolength{\topmargin}{+.7in} +%%% delete above for pdf + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{dff}[theorem]{$~~~~$ Definition} +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\nop{ } +\def\nxp{ } +\def\nxp{ Here $~$NXP } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pag5{Page 5} +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{Fact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + +%\title{Rough Summary of March 2012 Research Before I Attended +%the AMS March 17-18 Conference} + + +%% \title{ On +%% How the Revival of a Diluted +%% Version of +%% Hilbert's Consistency Program +%% %is +%% Should +%% Likely +%% Be +%% % Plausible and +%% % Veru +%% Germane +%% to Computer Science} + + + +% \title{ A 2-Part Conjecture about How + + + + +\title{Why a Small Fragment of Hilbert's Consistency Program +Ought to Be Feasible +for Hilbert-like Deductive Methods +After +A New $~\theta~$ Function Primitive +%AFTER A NEW ``$~\theta~$'' Function Primitive +Is Added to +A New $~\theta~$ Function Primitive +Arithmetic's Formalism} + + +\title{Why a Small Fragment of Hilbert's Consistency Program +Ought to Be Feasible +for Hilbert-like Deductive Methods +After A New $~\theta~$ Function Primitive +%AFTER A NEW ``$~\theta~$'' Function Primitive +Is Added to Arithmetic's Formalism} + + +\title{On How the Introducing of a + New $~\theta~$ Function Symbol +Into Arithmetic's Formalism Is Germane +to Devising Axiom Systems that Can +Appreciate Fragments of Their Own +Hilbert Consistency} + + + +%% +%% \title{On the +%% Likelihood +%% That a +%% Curtailed but +%% Well-Defined +%% Fragment +%% of +%% Hilbert's Consistency Program +%% Should be +%% Feasible +%% for the +%% Case of +%% Hilbert Deduction} + + +% \title{On the Almost-Certain Likelihood +% That a Sharply Curtailed but +% Well-Defined +% %Significant +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Ought to be +% %Plausible +% Feasible +% for the +% % Even the Challenging +% Case of +% Hilbert Deduction} + + + +% +% \title{ On +% How a Much-Diluted but Non-Trivial +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Is +% Likely +% %Plausible +% Feasible +% for Even the +% Challenging +% Case of +% Hilbert Deduction} +% +% %Plausible and +% % Veru +% % Germane +% %to Computer Science} +% +% +% %%% \title{\large \bf On the Revival of a Much-Diluted +% %%% but Non-Trivial +% %%% Version of +% %%% Hilbert's Consistency Program (And Its Applications +%%% for Computer Science, Mathematics and Philosophy)} + + +% \title{\large \bf On the Revival of a Modified and Diluted Version of +% Hilbert's Consistency Program (Extended Abstract)} + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E. Willard \thanks{This research +was partially supported +by the NSF Grant CCR 0956495. +%Email = dew@cs.albany.edu.}} +%\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{University at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + +%\begin{abstract +\baselineskip = 1.17 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + + +% PERTECT TITLE ABOVE ALTHOUHG PERHAPS OLD MANUSCRIPT BETTEDR + +\begin{abstract} + +%\Large + +% \baselineskip = 1.8 \normalbaselineskip +%aaaaaaaaaaa + +\large +\LARGE + \normalsize + + + It is known that the combined work of Pudl\'{a}k and Solovay + \cite{Pu85,So94}, enhanced by some added techniques of Nelson and + Wilkie-Paris \cite{Ne86,WP87}, implies no reasonable axiom system can verify + its own Hilbert consistency, when it recognizes Successor as a total function + and treats addition and multiplication as 3-way relations (as Example + \ref{ex-2.3} will explain). These considerations will lead us to examine + unconventional axiomatizations for arithmetic that continue to view addition + and multiplication as 3-way relations, but which replace the successor + function symbol with an entirely new operator, called the ``$~\theta~$'' + primitive. + +\medskip + +%% This $~\theta~$ operator +%% will +%% allow us +%% to encode any integer $~n~$ by a term $~T_n~$ +%% whose length will exceed the $O(~$Log$~n~)$ length of a +%% binary encoding +%% by +%% only the +%% relatively +%% small magnitudes formalized by +%% Proposition \ref{th-3.3} and Remark \ref{rem-def-3.4}. +% Proposition 3.3 and Remark 3.6 + +It is likely that this paradigm can be combined +with our prior results from \cite{wwapal} +%%% +%% with the prior results +%% in our APAL 2006 paper +%% REMOVE NEXT lINE +to construct axiom systems that are +seriously +diluted but +able to verify their Hilbert-style +consistency +in some interesting fragmentary respects. + +\end{abstract} + +\bigskip +\bigskip +\bigskip +\LARGE + +% ttttt THIS PAPER SHOULD BE MASTER DRAFDT for future articles. + + +\bigskip +\bigskip +\bigskip + + +\normalsize + +{\bf Keywords:} +Bounded Arithmetic, +G\"{o}del's Second Incompleteness Theorem, Hilbert's Second +Open Question, +Semantic Tableaux Deduction, +and Hilbert +Deduction. + + + +\bigskip + + +% {\bf Keywords:} +% G\"{o}del's Second Incompleteness Theorem, Consistency, Hilbert's Second +% Open Question, +% Hilbert-styled Deduction (and its Frege-like analogs). + + + + +% \bigskip +% +% +% +% {\bf Mathematics Subject Classification:} +% 03B52; 03F25; 03F45; 03H13 +% +% +% +% \bigskip +% \bigskip + + + +% {\bf Please Cite this Paper as:} +% {\rm http://arxiv.org/abs/1108.6330}, +% appearing in Cornell Archives + + + + + + + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +%\begin{abstract} +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +\newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + +\def\gvxs{ } + + +\def\gvxs{ \baselineskip = 1.0 \normalbaselineskip \parskip 2pt} +\def\gvxs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \baselineskip = 1.0 \normalbaselineskip \parskip 0pt} + +\def\gvxs{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 7pt} +\def\gvxs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvxs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + + +\def\gvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvxs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvxs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + +\noindent + + +\newpage + +\def\gvxs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvxs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvxs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvxs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvxs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvxs{ } + + +\gvxs + +\footnotesize + + +\def\gvxs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvxs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvxs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvxs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvxs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvxs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvxs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvxs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvxs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvxs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvxs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvxs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvxs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvxs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + + \def\gvxs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + +% \def\gvxs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + + + + \def\gvxs{ \Large \baselineskip = 2.15 \normalbaselineskip \parskip 2pt} + \def\lvxs{ \Large \baselineskip = 2.18 \normalbaselineskip \parskip 2pt} + \def\svxs{ \Large \baselineskip = 2.11 \normalbaselineskip \parskip - 2pt} +\def\hvxs{ \Large \baselineskip = 2.18 \normalbaselineskip \parskip 3pt} + + + + + + + + + + + \def\gvxs{ \large \baselineskip = 2.75 \normalbaselineskip \parskip 2pt} + \def\lvxs{ \large \baselineskip = 2.78 \normalbaselineskip \parskip 2pt} + \def\svxs{ \large \baselineskip = 2.71 \normalbaselineskip \parskip - 2pt} +\def\hvxs{ \large \baselineskip = 2.78 \normalbaselineskip \parskip 3pt} + + + \def\fvxs{ \normalsize \baselineskip = 1,46 \normalbaselineskip \parskip 2pt} + \def\fvxs{ \normalsize \baselineskip = 1,47 \normalbaselineskip \parskip 2pt} + \def\gvxs{ \normalsize \baselineskip = 1,47 \normalbaselineskip \parskip 2pt} + \def\lvxs{ \normalsize \baselineskip = 1,48 \normalbaselineskip \parskip 2pt} + \def\svxs{ \normalsize \baselineskip = 1,41 \normalbaselineskip \parskip - 2pt} + % \def\svxs{ } +\def\hvxs{ \normalsize \baselineskip = 1,48 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 1pt} + + + + \def\fvxs{ \normalsize \baselineskip = 1,66 \normalbaselineskip \parskip 2pt} + \def\fvxs{ \normalsize \baselineskip = 1,67 \normalbaselineskip \parskip 2pt} + \def\gvxs{ \normalsize \baselineskip = 1,67 \normalbaselineskip \parskip 2pt} + \def\lvxs{ \normalsize \baselineskip = 1,68 \normalbaselineskip \parskip 2pt} + \def\svxs{ \normalsize \baselineskip = 1,61 \normalbaselineskip \parskip - 2pt} + % \def\svxs{ } +\def\hvxs{ \normalsize \baselineskip = 1,68 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 1pt} + + + + \def\fvxs{ \normalsize \baselineskip = 0.96 \normalbaselineskip \parskip 2pt} + \def\fvxs{ \normalsize \baselineskip = 0.97 \normalbaselineskip \parskip 2pt} + \def\gvxs{ \normalsize \baselineskip = 0.97 \normalbaselineskip \parskip 2pt} + \def\svxs{ \normalsize \baselineskip = 0.91 \normalbaselineskip \parskip - 2pt} + % \def\svxs{ } +\def\rvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\hvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.0 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 1.0 \normalbaselineskip \parskip 2pt} + +\def\hvxs{ \normalsize \baselineskip = 1.35 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.35 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 1.35 \normalbaselineskip \parskip 2pt} + + + % \def\svxs{ } + +%moving +\def\rvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\lvxs{ \normalsize \baselineskip = 0.99 \normalbaselineskip \parskip 2pt} +\def\hvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.0 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 1.01 \normalbaselineskip \parskip 2pt} +\def\tvxs{ \normalsize \baselineskip = 1.01 \normalbaselineskip \parskip 2pt} + +\def\rvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 3pt} +\def\lvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 3pt} +\def\hvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 2.01 \normalbaselineskip \parskip 2pt} +\def\tvxs{ \normalsize \baselineskip = 2.01 \normalbaselineskip \parskip 2pt} + +%moving +\def\rvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip + 3pt} +\def\lvxs{ \normalsize \baselineskip = 0.99 \normalbaselineskip \parskip 2pt} +\def\hvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.0 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 1.01 \normalbaselineskip \parskip 2pt} +\def\tvxs{ \normalsize \baselineskip = 1.01 \normalbaselineskip \parskip 2pt} + +\def\tempvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 3pt} + +%\def\tempvxs{ } + +\lvxs +\nvxs + +%%% IGNORE BELOW: + +%% NOTE TO ME: Page 5 is cited in paper. needs to BE UPDATED +%%% AND prehaps GO BACK OLD FORM. + + +%%% iiiii +\section{Introduction} + +\label{ss1} +\label{ss2} + +\vspace*{- 0.5 em} + +We have published a series of articles about generalizations +and boundary-case exceptions for the Second Incompleteness Theorem +in \cite{ww93}-\cite{ww14}. One theme of this literature was that +such boundary-case exceptions will arise when multiplication +is treated as a 3-way relation by a system which verifies its own consistency +%in a +under +semantic tableaux deduction. +% instead of Hilbert deduction +%%%%%%% context. +A 15-page summary of +this research appeared +in +\cite{ww14}, but the latter is +not +% unnecessary to examine as +a prerequisite for reading this paper. + + +%% our prior research +%% about this topic +%% was provided in our +%% Wollic-2014 paper \cite{ww14}, but it is unnecessary for a reader +%% to examine \cite{ww14} as a prerequisite for this paper. + +\smallskip + +The main shortcoming in our prior research was that our formalisms +were mostly unable to recognize their own consistency under +Hilbert-style deductive methods. This was because a version +of the Second Incompleteness Theorem, +due to the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, indicated the mere assumption that the successor +operation was a total function was sufficient to trigger off the power +of the Second Incompleteness Theorem +for logics that verified their own consistency relative to Hilbert +deduction. In particular, only our paper \cite{wwapal} +% (which was +%by coincidence invited by editor Sergey Artemov to appear in APAL) +was +% exclusively +devoted to addressing this problem. +Its ISCE formalism could verify its own Hilbert consistency, but it +unfortunately required deploying an infinite number of separate constant +symbols because the presence of even a successor function symbol +would trigger off the Second Incompleteness Effect for systems corroborating +their own Hilbert consistency. + +The current article will introduce a modification of \cite{wwapal}'s +ISCE formalism, called IQFS, that +addresses this +% should help partially resolve this +challenge. It will introduce a +% new +function symbol, called the ``$~\theta~$'' +primitive, that will enable an arithmetic to construct the infinite +collection of +% positive +integers, +{\it without using} counterparts of any of the +% conventional growth +% function +% primitives of +successor, addition or multiplication +function-mappings. + +\medskip + +It is almost certain that \cite{wwapal}'s proof of ISCE's +consistency preservation property will generalize for the +current article's IQFS formalism. +We will provide no proof supporting our conjecture in this +extended abstract, but the intuition +behind it +% supporting our conjecture +will become quite evident. +Its gist will be that our proposed +new $~\theta~$ +primitive +%will be +should likely be +germane to +%{\it some special} +{\it some unusual} +axiom systems owning a +{\it small +% quite +fragmentized} knowledge about their own consistency. + + +%% +%% The proof of +%% IQFS's self-justifying properties will, +%% however, be much longer +%% than +%% % +%% \cite{wwapal}'s proof of its analogous Theorem 3 +%% (if the latter result is proven with the same level of detail +%% and +%% % 100 \% +%% rigor that Theorem 3's proof did receive). +%% We will sketch in this short conference abstract the intuitive +%% reason why IQFS should satisfy +%% an analog of ISCE's consistency preservation property, but +%% % provide +%% no formal proof +%% will be provided. + +% a formal consistency preservation property, exactly analogous to ISCE. + +%% I do +%% not want to write up such a proof in a context where I am currently +%% suffering from Diabetes and Hypertension. It is essentially +%% 99 \% +%% certain that this article's proposed new +%% $~\theta~$ operator should support our conjecture. +%% The purpose of this article will be to invite the +%% research community to investigate how one can +%% expand the mini-formalism from +%% \cite{wwapal}'s Theorem 3 to rigorously prove our +%% stated conjecture. + +% +% \section{More Detailed Description of Goals} + +%\label{ss2} + + +% This article will define a new +% ``$~\theta~$'' +% function symbol +% that should enable unusual logics +% %% +% %% % 5-10 \% +% %% boundary-case +% %% effect where a +% %% system can own +% %% +% to own a +% {\it diluted but tangible} knowledge about +% their own +% % its +% %own +% consistency. + +\bigskip + + +%% {\bf More Detailed Description of Goals} +%% % +%% % It is known the +%% % +%% G\"{o}del's + +%More precisely, + +During this article, we will often note +the +Second Incompleteness Theorem +was +%known to be + published in two +% quite +different + forms during +1931-1939. +Its initial 1931 variant, formalized by Theorem XI +in G\"{o}del's +% millineal +paper \cite{Go31}, +% +% +% Its Theorem XI, +% later known as the ``Second Incompleteness +% Theorem'', +% %, +% %appearing in G\"{o}del's millennial paper \cite{Go31}. +% +demonstrated +% that +no extension +of +% axiom systems, +% roughly corresponding to +the +% Russell-Whitehead +Principia Mathematicae formalism +% $\, P \,$ +could +% could + verify +its own consistency. +The widely quoted more general +result, that +every consistent r.e. +extension + of Peano Arithmetic must +be unable to prove a theorem affirming its +own consistency, +was +first +published +%% +%% (see \footnote{ Boolos states in \cite{Bool} +%% that it has been open to scholarly debate +%% whether or not the 1939 +%% Hilbert-Bernays generalization of the Second Incompleteness Theorem +%% is or (is not) a straightforward generalization of +%% G\"{o}del's initial result} ) +%% +in the 1939 edition of +the Hilbert-Bernays +textbook \cite{HB39}. + +% It has been considered +% to be the definitive demonstration of the broad reach of +% the Second Incompleteness Effect. + +%% +%% It also established, beyond any reasonable doubt, that any type +%% of formalism possessing a conventional knowledge of its own consistency, +%% must rely upon a +%% foundational structure +%% fundamentally different from Peano Arithmetic. +%% (This is because the +%% Hilbert-Bernays +%% textbook formalized the forerunner of +%% what has now been known as the +%% Hilbert-Bernays Derivability Conditions \cite{HB39,HP91,Lo55,Mend}, +%% as a mechanism for +%% % foreseeing +%% envisioning +%% the +%% astonishing +%% broad generality of the +%% Second Incompleteness Effect.) + + +It is, thus, fascinating that Hilbert, +as the co-author of +% an important +a +%very +% historic +generalization of the Second Incompleteness Theorem, +never withdrew the +% chose to never fully withdraw his +1926 justification + \cite{Hil26} +for his consistency program: +\begin{quote} +\small +\baselineskip = 0.9 \normalbaselineskip +$*~$~ +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding''} +% itself.''} +\end{quote} + + +%% Indeed, +%% %Instead, +%% Hilbert +%% always insisted some +%% new formalism would revive his consistency program +%% and had its +%% motto +%% ({\it ``Wir m\"{u}ssen wissen, $~$Wir werden wissen''} ) +%% engraved on his tombstone. + + +% Moreover, it +% +It +is also +known +\cite{Da97,Go5,Yo5} +that G\"{o}del +was +% also +doubtful about the generality of the Second Incompleteness +Theorem for at least two years after its publication. +He thus inserted the following +cautious caveat into +his famous +1931 +% millennial +paper \cite{Go31}: +% whose closing section +%%% +%%% One of the closing paragraphs of +%%% \cite{Go31} +%%% thus +%%% included +% +% +%%% contained the following cautious disclaimer: +%caveat: +% \newpage +\begin{quote} +\small +\baselineskip = 0.9 \normalbaselineskip +\it +$~**~~$ +``It must be +% expressly +noted that +Theorem XI +%'s incompleteness result +(e.g. the Second Incompleteness Theorem) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and there might +conceivably be ... '' +% finite proofs} which cannot +% be stated in P or in ...'' +\end{quote} +The +% above 1931 +statement $**$ has +had +%been subject to +numerous +%many +different +interpretations + \footnote{ + Some + scholars + have interpreted + $\,**\,$ + as + %as, possibly,' + anticipating + % + % attempts + % to confirm Peano Arithmetic's consistency, + % via + % either + % + Gentzen's formalism or + G\"{o}del's Dialetica interpretation.}. +All + G\"{o}del's +biographers +\cite{Da97,Go5,Yo5} +%%%have +have noted +% +% +% +% (with +% some +% scholars +% viewing it as germane to +% Gentzen's formalism or +% G\"{o}del's Dialetica interpretation). +% +% \gvxs +% \nvxs +% \bvxs +% %\parskip 1pt +% +% \noindent +% The +% % above 1931 +% statement $**$ has +% had +% %been subject to +% numerous +% %many +% different +% interpretations +% (with +% some +% scholars +% viewing it as germane to +% Gentzen's formalism or +% G\"{o}del's Dialetica interpretation). +% % +% % \footnote{ +% % Some +% % scholars +% % have interpreted +% % $\,**\,$ +% % as +% % %as, possibly,' +% % anticipating +% % % +% % % attempts +% % % to confirm Peano Arithmetic's consistency, +% % % via +% % % either +% % % +% % Gentzen's formalism or +% % G\"{o}del's Dialetica interpretation.}. +% % +% All +% G\"{o}del's +% biographers +% \cite{Da97,Go5,Yo5} +% %%%have +% noted +% % +% % +% +% +% +his +% % that G\"{o}del's +initial intention +was +to +establish +%achieve +Hilbert's proposed objectives, before +%he proved +proving +%proving +% G\"{o}del proved +a result +% +% however, +% %%%%%his +% G\"{o}del +% did originally +% seek +% % goal was +% to +% establish +% %achieve +% Hilbert's proposed objectives before +% proving +% % G\"{o}del proved +% a result +% +leading +%that led +in the opposite direction. +Yourgrau \cite{Yo5} +records +%furthermore, + how +von Neumann +% surprisingly +%did +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive +%%% achievement of a' + termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +It is known + G\"{o}del +began to +more fully +endorse +the Second Incompleteness +Theorem +during a 1933 +%% Vienna +lecture \cite{Go33}, +and he +% told biographers he +strongly +%completely +% fully +embraced it +after learning about Turing's work +\cite{Tur36}. + +\smallskip + +Our research +in \cite{ww93}-\cite{ww14} +%has been +has been +% is +related to issues +%analogous + similar +to those +%that were +raised by Hilbert and +G\"{o}del +in + statements $*$ and $**$. +This is because it is counter-intuitive and awkward to +%presume that +explain how +human beings can maintain the +psychological drive and +needed energy-desire to cogitate, without +being stimulated by +{\it some type (?)} of instinctive faith in their own +consistency. The new ``$~\theta~$'' primitive, introduced in the +current article, will +further + reinforce this perspective. + +% (under a definition of +% % formal consistency +% such +% % this concept +% that is suitably +% gentle and +% % delicate +% soft +% to +% be consistent with the +% Incompleteness Theorem's requirements). + +% preclude a violation of the +% restrictions imposed by the Incompleteness Theorem). + + +\smallskip + +We emphasize + that +%our current +the present +paper will differ from +all our prior research (except for \cite{wwapal}'s +trial-balloon result) +{\it by changing the focus from +semantic tableaux deduction to a Hilbert-style +deductive methodology.} + +\smallskip + +%\parskip 0pt + + +%% +%% Accordingly, our research in +%% \cite{ww93}-\cite{ww14} +%% has explored both generalizations and +%% boundary-case exceptions of the Incompleteness Effect, so as +%% to determine what type of boundary-case evasions are permitted. +%% Our prior research in \cite{ww93}-\cite{ww14} +%% had used mostly cut-free forms of deduction to +%% evade the +%% restrictions imposed by the +%% Second Incompleteness Effect. The current article will instead +%% focus on more pristine Hilbert-Frege methods of deduction. +%% They are likely to support an evasion of the Second Incompleteness +%% Effect when our axiom systems replace the traditional +%% growth properties of the addition, multiplication and successor +%% function symbols with our new $~\theta~$ primitive. +%% +%% \smallskip +%% +%% The motivation for this replacement will be +%% explained during the next section of this article. +%% It is needed +%% essentially +%% because +%% a +%% version of the Second Incompleteness Theorem, +%% due to the +%% combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +%% \cite{Ne86,Pu85,So94,WP87}, +%% %will show +%% demonstrates +%% that +%% if an axiom system $~\alpha~$ +%% proves any +%% of \eq{totxtefs} - \eq{totxtefm}'s totality statements +%% then it is incapable of confirming its own consistency +%% under a Hilbert-style deductive method. +%% +%% +%% +%% +%% +%% \smallskip + +Our results will suggest it is possible to obtain a +{\it part-way 5-10 \% +positive} interpretation +for what +Hilbert and G\"{o}del +% advanced + were seeking +% a Consistency Program +to establish +%% seeking to accomplish +% contemplating +in their +statements +$*$ and $**$, within a context where +it is known that the +Second Incompleteness Effect precludes a full achievement of +%these +Hilbert's +objectives +from ever transpiring. +The last five minutes of +a +recent + 60-minute YouTube +presentation + by Harvey Friedman +\cite{Fr14}, +entitled +% the +{\it ``The Blessing and Curse of Kurt G\"{o}del''}, +suggested that it is +%the themes of Hilbert and G\"{o}del's +%remarks $*$ and $**$ by indicating that +%it is +interesting to explore futuristic partial +boundary-like evasions of the Second Incompleteness Theorem, +despite the stunning strength of +G\"{o}del's result. +It is within this context where our proposed use of a new +$~\theta~$ primitive +symbol to replace the growth properties +of the traditional addition, multiplication and successor function +symbols may be of potential interest. + +\smallskip + +The development of our $~\theta~$ primitive +was +% partially +influenced by a private email +communication +we +% had +received +from +Pavel Pudl\'{a}k \cite{Pupriv}, +as \textsection \ref{ss4} +% \ref{ss3} \& \ref{ss4} +%shall +will +explain. +We also emphasize that the +%conventional +usual +interpretation of +the +% Second +Incompleteness Theorem, as precluding +Hilbert's Consistency Program from +% ever +achieving its initially +specified objectives, is certainly correct. +{\it Our only caveat} is that +some +{\it very tiny} 5-10 \% +% perhaps +{\it fragmentized part} +of Hilbert's and G\"{o}del's aspirations in +$*$ and $**$ ought to be viable. + +%fragment of its objectives ought to be viable. + + +%% the latter should not lead one +%% to +%% ignoring the role that a +%% human's instinctive faith in his/her's internal +%% consistency +%% %crucially stimulates and motivates +%% plays in stimulating and motivating +%% human cognition. + +%% +%% It is +%% from this +%% special +%% perspective where our prior research and +%% new +%% results +%% %2-part conjecture +%% will +%% % does +%% suggest that +%% an approximate +%% %at least a +%% 5-10 \% +%% fragment +%% % fraction +%% of what Hilbert and G\"{o}del +%% %suggested in +%% had +%% sought +%% in $*$ and $**$ +%% %could +%% should be +%% plausibly +%% %is +%% %% be formally +%% feasible. +%% + + +%\gvxs + +\vspace*{- 0.6 em} + +\section{Starting Perspective} +% 222222} +\label{ss3} + +\vspace*{- 0.6 em} + +%%! +%%! This article will be written in a style so that its +%%! overall theme (if not full details) +%%! should become +%%! {\it quickly} comprehensible to a reader who has +%%! examined +%%! only +%%! one of the +%%! % introductory +%%! logic textbooks by say Enderton, +%%! Fitting, H\'{a}jek-Pudl\'{a}k, +%%! Mendelson +%%! or Papadimitriou \cite{End,Fi96,HP91,Mend,Papa}. +%%! %% +%%! %% We will rely mostly upon the +%%! %% precise +%%! %% deductive calculi notation employed +%%! %% in Section 2.4 of Enderton's textbook, +%%! %% but any of +%%! %% the +%%! %% similar +%%! %% Hilbert-style deductive calculi of +%%! %% H\'{a}jek-Pudl\'{a}k, +%%! %% Mendelson +%%! %% or Papadimitriou \cite{HP91,Mend,Papa}. +%%! %% will also be suitable for achieving our results. +%%! +%%! %% +%%! %% +%%! %% ( Papadimitriyou's textbook +%%! %% generously states it employs a deductive notation +%%! %% that +%%! %% has +%%! %% stemmed from its predecessor in +%%! %% Enderton's textbook.) +%%! +%%! + + + +%% In order to make our +%% results +%% %research +%% apply to the +%% formalism + +It is helpful to employ a flexible vocabulary so +% that our +our +results +will apply +%research +%to the +%formalisms +to any of the +%% +%% accessible to +%% some +%% readers who are acquainted with only one of the +%% +textbook +formalisms of +% settings outlined by +% +say +Enderton, +Fitting, H\'{a}jek-Pudl\'{a}k, +or Mendelson +\cite{End,Fit,HP91,Mend}. +% +% , +% %% or +% %% Papadimitriou +% %% \cite{End,Fit,HP91,Mend,Papa}, +% %% +% %% +% %the widest +% % possible +% %audience, +% it is +% helpful +% % useful to +% use +% %employ +% a +% % very +% flexible +% vocabulary. +% %% +% %%that +% %%allows a reader to +% %%%quickly +% %%%translate results +% %%traverse +% %%from +% %%one textbook to another. +% % Therefore, let us define a +Let us +% thereby +call an +%\newpage +% +%\noindent +ordered pair $(\alpha,d)$ a + {\bf ``Generalized Arithmetic''} +% therefore +iff its +% first and second +two components +%% +%% Each of the +%% textbooks \cite{End,Fi96,Mend,Papa,HP96} have +%% employed +%% substantially +%% different variants of Basis and +%% Deductive-Apparatus structures. +%% +are +% described +formalized +% defined +as below: +%% +%% Their +%% definitions in +%% Items (1) and (2) +%% %simple +%% %%%definitions of these two notions +%% %given below, +%% allow one to easily translate +%% %theorems +%% formalisms +%% % methodologies +%% from +%% one textbook +%% % source +%% to another: +%% +%% %\njp +%% % \newpage +%% \parskip 2pt +\bee +\item +The {\bf ``Axiom Basis''} $~\alpha~$ +for an arbitrary arithmetic +shall be defined as +the set of +{\it proper axioms} employed by the +formalism $( \alpha , d )$. +\item +An arithmetic's {\bf ``Deductive Apparatus''} $~d~$ +is defined as +the +{\it combination} of its formal rules for inference +and +%its +the + built-in + logical axioms ``$~L_d~$'' +% (that are +% implicitly +employed by these rules. +\ene + +%%%\item +%%%The term {\bf ``Deductive Apparatus''} $~d~$ will +%%%refer to the +%%%{\it combination} of the rules of inference +%%%used by an arithmetic and its +%%%the logical axioms ``$~L_d~$'' that +%%%render meaning to +%%%%are an automatic part of +%%%$~d\,$'s machinery. + + +\begin{exx} +\label{ex-2.1} +%\label{ex-basis} +\rm +This notation +allows one to + conveniently separate the logical axioms +$~L_d~,~$ associated +with $( \alpha , d )~$, from + $\, \alpha \,$'s + ``basis axioms''. +%basis axioms +It also allows one to isolate +and compare +% , conveniently, +various +apparatus techniques, +%technique, +% employed in the exact formalisms +including the + $~d_E~$, + $~d_M~$, + $~d_H~$, +and $~d_F~$ +methods +%that we will now define: +defined below: +%% +%% Three +%% examples of this are illustrated below, +%% in a context where +%% are the deductive apparatus machineries defined +%% in Enderton's, Mendelson's and Fitting's textbooks +%% \cite{End,Fi96,Mend}. +%% +\bed +\item[ i. ] +The $~d_E~$ apparatus, +formalized in +\textsection + 2.4 of Enderton's textbook, +% will +uses only modus ponens +as a rule of inference. +The latter will be accompanied +by +a +4-part +system of + logical axioms, +called $~L_{d_E}~$, $\,$ to endow + $~d_E~$ +with an +ability to support +% apparatus +% agility so that it supports +%can satisfy +%the analog of +G\"{o}del's Completeness Theorem. +%% ' +%% (similar to other' +%% % full-scale ' +%% deductive methodologies).' +%% +%%%% +%%%% (Papadimitriyou's +%%%% % in-depth exploration +%%%% textbook \cite{Papa} about +%%%% % examination of +%%%% the Logic-Computer interface +%%%% relies +%%%% explicitly +%%%% upon +%%%% % uses +%%%% Enderton's +%%%% % underlying +%%%% apparatus mechanism.) +%%%% +%% %uses +%% relies upon +%% Enderton's +%% approach $d_E$.) + +%% %relies +%% does rely +%% upon +%% Enderton's apparatus +\item[ ii. ] +The $~d_M~$ +apparatus in +\textsection 2.3 +of Mendelson's textbook +and the $d_H$ + apparatus +in \textsection 0.10 +of the H\'{a}jek-Pudl\'{a}k's + textbook +employ a more compressed set of logical axioms +than $\, d_E \,$, +but +they +instead +use +two rules of inference +% (formalizing separately +( modus ponens and generalization). +%% plus a smaller set of logical axioms, which Mendelson +%% has called A1-A5. +%% Also, the $d_H$ +%% apparatus +%% on pages ???? +%% of the +%% H\'{a}jek-Pudl\'{a}k textbook +%% uses a slightly different variation of a generalization. +%% (In the end, +In the end, +% both + $~d_M~$ +and $~d_H~$ +prove the same +% set of +theorems +as $~d_E~$ with +only +% minor and +unimportant changes in +proof length. +\item[ iii. ] +The +``semantic tableaux'' + $\,d_F \,$ +apparatus in +Fitting's +and Smullyan's +textbooks +\cite{Fit,Smul} +was + the +% main +focus of our +investigations in \cite{ww93,ww1,ww5,ww6,ww14}. +It will be rarely used +in the current article, +however. +Unlike + $~d_E~$, $~d_M~$ and $~d_H~$, it +employs no logical axioms. +It instead + uses a more complicated rule of inference. +This tableaux apparatus +% and also Resolution, have been + has +% been found to have many +many +%a wide array of +applications +% underfor +in +automated deduction, +although it is +less efficient than + $ d_E $, $ d_M $ and $ d_H $ +in +% under +% extremal +worst-case +environments. +% settings. +%circumstances. +\ennd +\end{exx} + +\tvxs + +\begin{dff} +\label{def-2.2} +\rm +Each of the +% deductive +methods of + $ d_E $, $ d_M $ and $ d_H $ +have the property that if a theorem $\, \Psi \,$ +has a proof +with length $~L~$ + from an arbitrary +axiom basis $~\alpha~$ +under one of these deductive systems, +then it will have a proof from these other formalisms +with lengths bounded by Polynomial$(L)$. +The term +{\bf ``Hilbert-style''} deductive method will, +thus, refer to any deductive +% apparatus will refer to any other +apparatus $~d~$ that +has a modus ponens rule and +employs +% similarity has its +proof lengths +% being +equivalent to within a polynomial magnitude +to +%of +the comparable proof lengths from $d_E$, $d_M$ and $d_H$. +\end{dff} + + +%% and which +%% also +%% assures +%% that the proofs of any +%% two theorems $~\Phi~$ +%% and $~\Psi~$ +%% (under $d$ from any +%% axiom basis $~\alpha~$) +%% will +%% always +%% have +%% % by more than a constant factor +%% the sum of the lengths of the proofs +%% of $~\Phi \rightarrow \Psi ~$ and $~\Phi~$ +%% % under $~d~$ from $\alpha$ always +%% formally +%% bound the length of +%% $~\Psi\,$'s proof. +%% \end{dff} + + +\begin{exx} +\label{ex-2.3} +%\label{ex-basis} +\rm +Some added notation is + needed to +explain why +% help outline +% an important distinction between +a Hilbert style +deductive apparatus, such as $\,d_E\,$, $\,d_H\,$ + or $\,d_M\,$, should be distinguished from + $d_F$'s +``tableaux'' apparatus. +Let +% the symbols + $Add(x,y,z)$ and $Mult(x,y,z)$ +once again +% will +denote +two +3-way predicate symbols +specifying +that +$x+y=z$ and +$x*y=z$. +Also, let us recall +that +an +axiom basis + ``$\, \alpha \,$'' +is said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} if +%%%%%%%%% $\, \alpha \,$ +it +includes +\eq{totdefxs} - \eq{totdefxm} +as theorems. + +% {\small +{\vspace*{- 0.6 em} +{ +\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } +} + +\vspace*{- 1.4 em} + +\noindent +%Then an +In this context, an +``axiom basis'' +$\alpha$ +will be called +{\bf Type-M} if it contains +\eq{totdefxs}-\eq{totdefxm} +% \ref{totdefxs}-\ref{totdefxm} +as theorems, +{\bf Type-A} if it contains +%only +\eq{totdefxs} and \eq{totdefxa} as theorems, +and {\bf Type-S} if it contains +only \eq{totdefxs} as a + theorem. +%Moreover, +Also, +$\alpha$ +%will be +is +called +{\bf Type-NS} if it can prove +none of these theorems. +%In this context, +%The +%Items (a) and (b) illustrate +%%%Below are illustrated several +%%%implications of this notation: +The implications of this notation +are formalized by Items a and b: + +%% +%% +%% , below, +%% %will +%% illustrate how +%% a +%% %% +%% %% the +%% %% prior +%% %% literature has +%% %% +%% %% +%% ``Hilbert-style'' +%% deductive apparatus, such as $\,d_E\,$ +%% or $\,d_M\,$, supports very different generalizations +%% of the Second Incompleteness Theorem +%% than $\,d_F\,$'s +%% ``tableaux-style'' apparatus: +%% +%% the prior literature most germane +%% to our current article is summarized as follows: +%% +%% +%% The relationship of these constructs to +%% self-justification +%% is explained by +%% items (a) and (b): +\bed +\item[ a. ] +The +%% +%% above +%% evasions of the Second Incompleteness +%% Theorem are known to be near-maximal in a mathematical sense. +%% This is because +%% the +%% +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, +as formalized by statement $\, ++ \,$, +%has implied +implies +no +natural +Type-S system can recognize its +own consistency +under +any of $\, d_E \,$'s, $\, d_H \,$'s +or + $\, d_M \,$'s + Hilbert-style +versions +of deduction: +\begin{quote} +{\bf ++ } +\small +% \footnotesize + \baselineskip = 0.9 \normalbaselineskip +{\it +(Solovay's +modification +%Generalization +\cite{So94} +%1994 Generalization \cite{So94} +%of a 1985 theorem +of Pudl\'{a}k \cite{Pu85}'s formalism +with +%using +%some of +Nelson and Wilkie-Paris \cite{Ne86,WP87}'s +methods)} : +Let $ \, \alpha \, $ denote +%%! any consistent +% a logic +an axiom +basis +% axiom system +%basis system +%supporting +% which contains +able to prove +Line +\eq{totdefxs}'s +Type-S statement +and +assuring +%which assures +%that +the successor operation +%always +does satisfy +both +% the axioms of + $ \, x' \neq 0 $ and +the identity +$ x' = y' \Leftrightarrow x=y $. +$~$Then $~\alpha~$ +cannot verify its +%will be unable to recognize its +%own +consistency +under any Hilbert-style +%deductive +apparatus $d$, +%whenever +if it + treats addition and multiplication +as 3-way relations, +satisfying +the usual % identity, +associative, commutative + distributive +and identity axioms. +% -axiom +% properties. +\end{quote} +Essentially, Solovay \cite{So94} +privately communicated +to us +in 1994 +%to us +an analog of $++$'s result. +%but +Many authors +have noted Solovay + has +been +%often +reluctant to publish +% several of +his +nice +privately communicated +results +on many occasions +%in several contexts +\cite{BI95,HP91,Ne86,PD83,Pu85,WP87}. +Thus, +%polished +approximate analogs of +%statement + $++$ + were explored +subsequently +by +Buss-Ignjatovic, +H\'{a}jek +and +\v{S}vejdar in \cite{BI95,Ha7,Sv7}, +as well as in Appendix A of +our paper +\cite{ww1}. +Also, +Pudl\'{a}k's initial 1985 article \cite{Pu85} +% implicitly +did capture +essentially +the +{\it great majority} +%most +%%% much +of $++$'s +% main +% underlying +formalism, +and +Friedman did +related work +in +\cite{Fr79a}. + +\item[ b. ] +Part of what makes +% the Pudl\'{a}k-Solovay discovery in + $++$ interesting is that +\cite{ww93,ww1,ww5,wwapal} +%Willard +developed various +% separate +methods for +basis systems +%%% $\alpha$ +to confirm their own consistency, whose +main +further improvements are +prohibited by either the invariant $++$ +or by +\cite{ww2,ww7}'s hybridization of +$++$'s formalism with some further methods of + Adamowicz-Zbierski +\cite{AZ1}. (As a consequence of these facts, it is known +that +some +Type-A +and Type-NS +arithmetics can verify their +respective + semantic tableaux and + Hilbert-styled consistencies, +but +Type-S arithmetics cannot verify their Hilbert consistency and +most Type-M systems cannot verify their semantic tableaux +consistency.) + \ennd +\end{exx} + +% natural hybridizations is precluded by $++$. These results involve +% either a Type-NS +% % basis +% system +% +% verifying its own consistency +% under +% any of the +% $d_E$ or $d_H$ +% or $d_M$'s +% Hilbert-style methods, +% or a Type-A +% %basis +% system \cite{ww93,ww1,ww5,ww6,ww14} +% verifying +% its +% % own +% self-consistency +% under $d_F$'s tableaux +% %deductive +% apparatus. +% Also, Willard \cite{ww2,ww7} observed how one could +% refine $++$ with Adamowicz-Zbierski's +% methodology \cite{AZ1} to show +% Type-M systems +% cannot recognize their semantic tableaux consistency. +% \ennd +% \end{exx} + +\lvxs +\nvxs + + +% \tempvxs + + +%% A more detailed 15-page summary, +%% % of our prior research, +%% germane to +%% % the +%% Item (b), +%% % , above, +%% %can be found in our article +%% appears in +%% \cite{ww14}. + +% NNN NEED TO REWRITE NEXT TWO PARAGRAPHS + + +A full 15-page summary +% of our prior research, +of + Item (b)'s results +% , above, +%can be found in our article +can be found in + \cite{ww14}. +It does not need + to be read, +however, + as a prerequisite for understanding +the current paper. This is because our goal +%%% in the current paper +will be to explore axiom basis systems that can recognize their +own +Hilbert-styled +consistency, and the invariant $++$ indicates that each of the +classes of Type-S, Type-A and Type-M +arithmetics +are irrelevant to +this objective. +%our goals. + + +%% %% formalisms +%% own +%% % contain +%% excessive +%% growth properties that +%% lie outside +%% our goals. + +%this goal. + +%are incompatible with our goals. + +Instead, the \textsection \ref{seee3} will introduce a new +growth function symbol, called the ``$~\theta~$'' primitive, +that allows us to reside within the domain of a Type-NS arithmetic +because {\it none of the identities in +Lines + \eq{totdefxs}-\eq{totdefxm}} +will be provable consequences +of $\theta$'s speedy but unconventional growth properties. + +This $\theta$ primitive will be attractive because +Proposition \ref{th-3.3} +and Remark \ref{rem-def-3.4} will imply it supports +respective $O(~$Log$^3 \, n \,)$ and $O(~$Log$ \, n \,)$ +growth speeds for constructing arbitrary integers $~n$ +(depending on what linguistic notation one uses for encoding integers). +As a result, +%%% of this fact, +\textsection \ref{ss32} + will conjecture that +a seemingly minor ``IQFS'' modification of \cite{wwapal}'s +ISCE formalism is an arithmetic that possesses some interesting abilities +to confirm its own +% Hilbert-style +Hilbert +consistency. + +We might add that the discussion in this article will be +{\it entirely self-contained} +because + \textsection \ref{ss32} + will summarize \cite{wwapal}'s +definition of the ISCE formalism. + +\begin{deff} +\label{def-2.4} +\rm +Let +$~\alpha~$ again +denote an axiom basis +and $~d~$ +designate + a +deduction apparatus. +% +% During our discussion about the open questions +% raised by Hilbert's and +% G\"{o}del's +% statements +% $*$ and $**\,$, +% an +% % +% % Then the +% +In this context, an +ordered pair + $~( \alpha , d )$ +will +be called {\bf Self Justifying} when: +\begin{description} +% \xxitch +% \small + \item[ i ] one of $ \, \alpha \,$'s theorems +(or at least one of its axioms) +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +\end{deff} + + +\begin{exx} +\label{ex-2.5} + \baselineskip = 1.04 \normalbaselineskip +\rm +% Using +% Definition \ref{def-2.4}'s +% notation, our research +% +Our research +in +\cite{ww93,ww1,ww5,wwapal,ww9,ww14} +developed +%\cite{ww93}-\cite{ww14} +%has consisted of +% developing +ordered pairs $~( \alpha , d )$ +that +were +%are +``Self Justifying''. +It +% has +also explored +how the Second Incompleteness Theorem formalizes +limits beyond which such formalisms cannot transgress. +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +% second +%%% axiom +system $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +condition. +%of +% this definition. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +%%% +%%% the following +%%% %%% added +%%% further +%%% sentence, +%%% called +%%% %%% that we call +%%% {\bf SelfRef$(\alpha,d)~$}: +\begin{quote} +\small +% \baselineskip = 0.95 \normalbaselineskip +%\xxitch +$\oplus~~~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of +the + axiom system $\, \alpha \, $ +with {\it this} +sentence ``SelfRef$(\alpha,d) \,$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +discussed +how +to +encode +approximate + analogs of this +{\bf $\,$``SelfRef$(\alpha,d)$''$\,$} +statement. +%%% SelfRef$(\alpha,d)$'s +%%% self-referential statement. +Both Kleene and +Rogers \cite{Kl38,Ro67} +% +% Each of +% Kleene, +% Rogers and Jeroslow +% \cite{Kl38,Ro67,Je71} +% + noted +$\alpha ^d$ +may +% , however, +be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii of self-justification's +definition. +This is because if the +% ordered + pair $(\alpha,d)$ is too strong +then a classic G\"{o}del-style diagonalization argument can +be applied to the axiom system +$\alpha^d~~=~~ \alpha \, + \, $ SelfRef$(\alpha,d)$, +where the added presence of +% statement +SelfRef$(\alpha,d)$'s axiomatic statement +will cause +%% this extended version of +$\, \alpha^d\,$, ironically, + to + become automatically inconsistent. +Thus, the machinery of the sentence +``SelfRef$(\alpha,d)$'' is relatively easy to +encode, +%make well-defined +via an application of the Fixed Point Theorem, +but it +is +ironically +%%%%%{\it most often +{\it +typically +%usually +useless! } +\end{exx} + +%\newpage + + +Unlike our earlier work, which focused + mostly around a +semantic +tableaux apparatus for deduction, +the current paper +will +explore +%paper will explore +\dfx{def-2.2}'s +more pristine Hilbert-style methodologies. +%% +%% analogous to +%% Example +%% \ref{ex-2.1}'s +%% textbook +%% methods. +%% +% of +% $d_E$, $d_M$ +% and $d_H$. +%%! +%%! in +%%! the textbooks by +%%! Enderton, H\'{a}jek-Pudl\'{a}k, +%%! Mendelson and Papadamiriyou \cite{End,HP91,Mend,Papa}. +There are, of course, many types of generalizations +of the Second Incompleteness Theorem known to +arise in Hilbert-like settings +\cite{BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Lo55,Kr87,Kr95,Pa71,Pa72,Pu85,Pu96,So94,Sv7,Vi5,WP87,ww1,wwapal}. +Each such +generalization +formalizes +a paradigm where +self-justification is infeasible +under a Hilbert-style apparatus. + +\smallskip + +Our +main +prior research about +%%! +%%! main work about arithmetics displaying knowledge +%%! about their +%%! +Hilbert consistency appeared in \cite{wwapal}. +Its ISCE$(\beta)$ +system could recognize its +own +Hilbert consistency and +%%could +prove analogs of +the $\Pi_1$ theorems of +any +% r.e. +extension $~\beta$ of +Peano Arithmetic. +% 's $\Pi_1$ theorems. +It unfortunately required +% the +use of infinitely many +% number of +constant symbols, with + ISCE$(\beta)$ +using one built-in constant +% symbol +$C_i$ +for each power of 2. +(Such a series of constants seriously + deviated from +Hilbert's +intended + goals +in statement $*\,$, as +we will explain during +\textsection \ref{ss32}'s detailed review of +\cite{wwapal}'s results.) + + +% An alternative in \cite{wwapal}, +% called ISINF$(\beta)$, required use of only three constant symbols, +% but its proof lengths were impractically long. + + +%%! required +%%! % in excess of +%%! an impractical +%%! $O(N)$ length proof to construct an integer $N$. + +\smallskip + +Prior to \cite{wwapal}'s publication, +Pavel Pudl\'{a}k +\cite{Pupriv} +examined this article and asked +%us +% the crucial question about +whether +we could improve +upon ISCE +% 's properties + by using Ajtai's observations +\cite{Aj94} + about +the Pigeon Hole principle. +%% +%% Sam Buss \cite{Bupriv} also asked us +%% a +%% %similar +%% related +%% question +%% (during a more +%% informal +%% %abbreviated +%% conversation). +%% %(in a more informal manner). +%% +Our prior +partial +answer to Pudl\'{a}k's +question +was offered +%issue +%appeared +%in Sections 6 and 7 of \cite{wwapal}. +in Sections 6 of \cite{wwapal}. +A +% very +different type of reply will be offered +% +% We will offer +% % an alternate much +% a +% % much +% more sophisticated +% and different +% type of reply +% % analysis +% % formalism +% +in +the current +paper. +%article. + + +%%! an abbreviated version of a similar +%%! question after we verbally summarized to him \cite{wwapal}'s +%%! planned results. + +% in 1997. + + +\begin{deff} +\label{def-2.6} +\rm +Throughout our discussion, a +% A +primitive $~F~$ will be called a +{\bf Q-Function} +iff is is +sufficiently ambiguous +for there to exist an uncountably infinite set of +% different +distinct +{\it +plausible sequences} of +ordered pairs in expression \eq{wow} where +$~F(i)=a_i~$ is allowed as a +% logically +permissible +%plausible +%formalization +representation of $F$ +under some fixed axiom system $~\gamma~$. +\begin{equation} +\label{wow} + (0,a_0) + ~,~ (1,a_1) ~,~ (2,a_2) ~,~ (3,a_3) ~,~ (4,a_4)~ ... +\end{equation} +\end{deff} + +% \gvxs2 + +\vspace*{- 0.6 em} +%It turns out most + +% +% Most +% Q-Function symbols are +% unsuitable for +% analyzing +% %producing a positive resolution to +% Hilbert's Second Open Question or most +% issues in +% % other prominent +% % % mathematical +% % questions within +% mathematics. + +Most +Q-Function symbols are +awkward to employ. + This is because the +presence of an + uncountably + infinite + number of +different +plausible sequences, +formalized by Line +\eq{wow} for solving +$~F(i)=a_i~,~$ is +typically more of a burden than a benefit. +A +possible +%potential + exception to this general rule +of thumb + will be +provided by + the next +section's $~\theta~$ operator: It +% because it + will, +conveniently, + lie outside the scope of + $\, ++ \,$'s generalization of the Second Incompleteness +Theorem. +This fact will ultimately lead to our +main conjecture +about stronger variants of Type-NS logics +recognizing their own Hilbert consistency. + + + +% an enticing manner. + + +% It +% will +% % should +% provide an +% % enticing +% avenue for +% Type-NS axiom systems to recognize their own +% Hilbert consistency (if +% \textsection \ref{ss5}'s +% ``IQFS'' +% %anticipated +% conjecture is +% correct). + + +%% +%% and suggest a mechanism whereby an efficient form of +%% ``Type-NS''self-justifying +%% arithmetic +%% can recognize its own Hilbert consistency, +%% without +%% viewing +%% % recognizing +%% %%%%%% any of addition, multiplication and +%% even +%% successor as +%% a total function. + +%In other words, +% \smallskip + + +%% +%% +%% \medskip +%% Thus in a context where the partial drawbacks of +%% our +%% new $~\theta~$ primitive +%% will be beyond doubt, it will +%% % simultaneously +%% renew the +%% serious +%% question about whether a +%% {\it +%% part-way +%% 5-10 \% fragment} of +%% %positive} interpretation +%% %can be assigned to +%% Hilbert's and G\"{o}del's +%% goals in $*$ and $**$ +%% can be acheived. + + +%% +%% Our +%% suggestion +%% % conjecture +%% will be that +%% Q-functions +%% might +%% allow one to assign a +%% {\it +%% % part-way +%% 5-10 \% +%% positive} interpretation +%% for what +%% Hilbert and G\"{o}del +%% were +%% seeking +%% %referring to +%% % a Consistency Program +%% % to establish +%% %% seeking to accomplish +%% % contemplating +%% in their +%% famous +%% %often quoted +%% statements +%% $*$ and $**$. +%% + +%% +%% It will enable us to develop ground terms for formulating +%% any integer $~N~$ using +%% $O\{~$Log$(N)~\}~$ +%% logical symbols, +%% in a context where +%% {\it none of the} addition, multiplication or +%% successor function symbols are employed +%% by $~\theta \,$'s analog of an +%% $O\{~$Log$(N)~\}~$ +%% lengthed +%% binary-like +%% encoding +%% for integers. +%% % of an integer as a binary number. +%% This alternate +%% $O\{~$Log$(N)~\}~$ +%% format +%% for encoding an integer $~N~$ is +%% potneitlally useful +%% %fascinating +%% because +%% Item $\, ++ \,$'s generalization of the Second Incompleteness +%% Theorem, due to the +%% combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +%% \cite{Ne86,Pu85,So94,WP87}, +%% does not preclude evasions of its invariant when a +%% ``Type-NS'' +%% axiom system ceases to recognize +%% addition, multiplication and +%% successor as total functions. + + + +% Most +% Q-Function symbols are +% unsuitable for +% analyzing +% %producing a positive resolution to +% Hilbert's Second Open Question. +% A special class of Q-Functions +% % , however, +% will +% walk through +% Cantor's +% % the +% world of the Uncountably Infinite +% %% in a more +% in an +% enticing manner, +% however. +% %% however. +% %It +% They +% will suggest a +% %%% much +% {\it diluted but non-trivial} +% variant +% of the aspirations +% which +% %that +% Hilbert and G\"{o}del +% expressed +% in +% $*$ and $**$ +% are +% %applicable to +% feasible under +% % plausible in the context of +% Hilbert Deduction. +% (This +% % Q-function a +% analysis will be +% %%%%%%%%%%%%%% quite +% % entirely +% different +% from +% \cite{ww14}'s +% examination of +% %formalisms +% %the formalisms appearing in our Wollic-2014 paper +% %%% because +% %it will replace +% semantic tableaux deduction +% because it will +% apply +% uniquely +% to +% Definition \ref{def-2.2}'s +% ``Hilbert-styled'' deduction methods.) + + +%%% is replaced by the more efficient +%%% %with the more pristine +%%% Hilbert-style deductive methodology.) + +%can be achieved. + + +%%! This will suggest +%%! a {\it limited} +%%! and very-much {\it down-sized} version of the formalism that +%%! Hilbert +%%! advocated +%%! is +%%! likely +%%! %probably +%%! feasible +%%! and +%%! germane to +%%! the +%%! future +%%! % computational +%%! needs of automated +%%! theorem provers. +%%! Our +%%! exploration +%%! will also provide a +%%! % quite +%%! new interpretation of the +%%! meaning of the statements $*$, $**$ and +%%! $***$. + +% by Hilbert and G\"{o}del. + + + +% \section{Revisiting a World which Hilbert called +% {\it ``Cantor's Paradise''}} + +%\section{Main Formalism} + +% \section{Deploying a New ``$~\theta~$'' Primitive} + +% \vspace*{- 0.9 em} + + + +%\section{Need for a New ``$~\theta~$'' Primitive} + + +%\section{Mysterious New ``$~\theta~$'' Primitive} + + +% \section{The Surprisingly Useful ``$~\theta~$'' Primitive} + +%\section{The ``$~\theta~$'' Primitive and Its Potential Uses} + +\vspace*{- 0.5 em} +\section{Arithmetic Under The ``$~\theta~$'' Primitive} +\label{ss4} +\label{seee3} + +%333333333333333333333333333 + +\vspace*{- 0.5 em} + +%\vspace*{- 0.9 em} + + +% OLD Title was {\it Notation and Basic Concepts} + +% Throughout this +% paper, +% %article, +% % a + +A function + $\, H \, $ +will be called +a + {\bf Non-Growth} operation +iff +$ H(a_1,a_2,...a_j) +\leq Maximum(a_1,a_2,...a_j)$ +for all $a_1,a_2,...a_j$. Six examples of + non-growth functions are: +\bee +%\small +\footnotesize +\parskip - 3pt + \baselineskip = 0.6 \normalbaselineskip +\item +{\it Integer Subtraction} +where ``$~x-y~$'' is defined to equal zero +in {the special case} where + $~x \leq y,$ +\item +{\it Integer +Division} +where ``$~x \div y~$'' equals +$~x~$ when $~y=0~$ and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise, +\item +$Root(x,y)~$ which equals $~ \lfloor ~x^{1/y}~ \rfloor$ when $~y\geq 1~$ +%% +%% and +%% it equals $~x~$ when $~y=0.$ +%% +(and zero otherwise), +\item +$Maximum(x,y),~~$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +and +\item +$Count(x,j)~~=~~$the number of ``1'' bits +among $~x$'s rightmost $~j~$ bits. +\ene +%% +%% +%% \bee +%% \baselineskip = 0.8 \normalbaselineskip +%% +%% \item +%% {\it Integer Subtraction} +%% where ``$~x-y~$'' is defined to equal zero +%% in {\it the special case} where +%% $~x \leq y,$ +%% \item +%% {\it Integer +%% Division} +%% where ``$~x \div y~$'' equals +%% $~x~$ when $~y=0,~$ and +%% it equals $~\lfloor ~x/y ~\rfloor~$ otherwise, +%% \item +%% $Root(x,y)~$ which equals $~ \ulcorner ~x^{1/y}~ \urcorner$ when $~y\geq 1,~$ +%% and +%% it equals $~x~$ when $~y=0.$ +%% \item +%% $Maximum(x,y),~~$ +%% \item +%% $ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ when $~x \geq 2,~$ +%% and zero otherwise. +%% \item +%% $Count(x,j)~~=~~$the number of ``1'' bits +%% among $~x$'s rightmost $~j~$ bits. +%% \end{enumerate} +%% +These operations were called +either the +{\bf ``Grounding''} +or {\bf ``Ground-Level''} + functions +in our articles \cite{ww1,ww5,ww14}. +% We will use the +We will rely upon the +% The +latter nomenclature in the current article + because the notion of a ``Ground-Level'' +function should not be confused with the +% very +quite +different notion +of a ``Grounded Term'' (employed by Definition +\ref{def-3.4}). + +% TWO DEFS or ONE ???????? + + + +Our +starting language $L^G$ +will +% shall +also contain +the +two atomic +symbols +%% relations +of ``$~=~$'' and ``$~\leq~$'' and three +built in constants symbols, $~C_0~$, $~C_1~$ and $~C_2~$, +for representing +the values of 0, 1 and 2. +Within this context, + Expressions +% Lines +\eq{newadd} and \eq{newmult} formalize how addition and multiplication +can be encoded as two 3-way predicates, +%% in $L^G$, + denoted as +Add$(x,y,z)$ and Mult$(x,y,z)$. +% +% (Their +% % unusual +% particular +% definitions +% are +% % quite +% %highly +% useful because they +% allow our ``Type-NS'' arithmetic to evade +% satisfying +% % Lines +% \eq{totdefxs}-\eq{totdefxm}'s +% forbidden +% function-existence +% conditions.) +% +%%%%undesirable constraints.) +% +% they do not imply addition +% and multiplication are total functions (e.g. +% they permit our arithmetic to be a +% ``Type NS system''.) +% +% further conditions.) +% +% (These +% definitions +% % for Add$(x,y,z)$ and Mult$(x,y,z)$ +% {\bf notably allow} a +% %two 3-way predicates are consistent with a +% ``Type NS system'' to +% {\it evade satisfying} Lines \eq{totdefxs}-\eq{totdefxm} +% {\it forbidden} +% constraints.) +% % further conditions.) + +\newpage +%bbbbbb +{ \small +\vspace*{- 1.2 em} +\beq +\label{newadd} +z ~ -~x~~=~~ y~~~~ \wedge ~~~~ z~\geq~x +\end{equation} + +\vspace*{- 1.2 em} +\begin{equation} +\label{newmult} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x}\, k~$ +and +also +% simultaneously +having +each $ \, a_i \leq k$ \, +It will be necessary +%% for us +to employ + either an infinite number +of constant symbols or some Growth-Permitting function +so that an extension of the +language $L^G$ can construct the +full +%infinite +collection of + integers of $~3,4,5,6~....~$. + + + + +%% One awkward aspect of this notation is that +%% it provides +%% no guarantee +%% that integers larger than 2 will exist without the +%% presence of some +%% further +%% methodology for producing larger integers. + + +% +\smallskip + + +One method for resolving this problem was presented in \cite{wwapal}. +% +% It employed an infinite number of further constant symbols. The +% latter's +% ISCE$(\beta)$ +% system was +% % shown to be +% compatible with self-justification, +% but such an infinite number of constant symbols clearly trespassed on +% Hilbert's goal of using a +% %strictly +% finite-sized formalism. +% +Its ISCE$(\beta)$ axiom basis +deployed an infinite number of +% further +distinct +constant symbols. It +was +compatible with self-justification, +but deviated from +%{\it very sharply from} +Hilbert's +intended + goals +because it employed +% by employing +%an +a {\it highly awkward} +infinite number of +distinct + constant symbols. +(The reader will +better +appreciate this point when +\textsection \ref{ss32} +reviews +% the +% properties of +ISCE's defining formalism. +This difficulty is fundamental +% to avoid +because +the Invariant $++$'s generalization of the +Second Incompleteness Theorem indicates that +Type-S arithmetics are unable to confirm their +own Hilbert consistency.) + + + +\medskip + + + +%% The +%% % self-justifying +%% ``ISINF'' formalism +%% % in +%% of +%% \cite{wwapal} +%% offered an alternate method for resolving this difficulty. +%% %% in the context of a self-justifying logic. +%% It +%% % required the use of +%% used +%% {\it only +%% three} constant symbols. It could prove analogs of all +%% of Peano Arithmetic's +%% $\Pi_1$ theorems, but almost all +%% of +%% its proofs +%% unfortunately +%% had lengths longer +%% than the number of atoms in the universe. +%% Most other approaches, for resolving this dilemma, +%% % are +%% were +%% also problematic +%% because +%% Example \ref{ex-2.3}'s +%% invariant +%% $~++~$ +%% % +%% % which Example \ref{ex-2.3} +%% % attributed to the joint work of +%% % Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris, +%% % +%% showed that essentially every Type-S arithmetic is unable to +%% recognize its +%% own consistency under a Hilbert-style deductive apparatus. +%% +%\smallskip + + +% The challenge posed by $++$ +% is, thus, +% substantial. +% % certainly formidable. + +Our goal in +%the current +this +article +will be to suggest +how +%that +a Q-function primitive $F(x)$, +that has +% an extraordinarily +a deliberately +ambiguous + function definition, +can help overcome the constraints that $++$ imposes. +Such an +% ultra-ambiguous defined +unusual +primitive $~F~$ will have +an uncountable number +of vectors, analogous to Line \eq{wow}, that are permitted +solutions to +$F$'s +definition. +Our basic goal +% in this article +will be to outline +how this unusual concept is +likely germane to the +self-justifying +axiom system satisfying +{\it a very diluted} but not +immaterial subset of +%% +%% why it is +%% likely such Q-functions will enable one to build +%% surprisingly efficient self-justifying logics that +%% partially (but not fully) achieve the +%% %{\it diluted portion} of the +%% +%aspirations +%that +Hilbert's and G\"{o}del's goals in +%expressed in +statements +$*$ and +$**~$. + +\smallskip + +%\normalsize \baselineskip = 0.98 \normalbaselineskip +%\gvxs + + +%% \el{wow}'s +%% dizzying +%% $\aleph_1$ distinct solutions. +%% We will traverse in the opposite direction in this article +%% because +%% Definition \ref{def-2.6} +%% %\eq{wow} +%% formalizes +%% % fascinating +%% % a possible +%% an +%% avenue +%% available +%% for evading $++$'s generalization of the +%% %Second +%% Incompleteness +%% Theorem. + +% {\it in at least a partial sense.} + + +%% +%% %They +%% This level of multiplicity will be +%% %These will turn out to be +%% useful in the present setting +%% because +%% %% +%% %% Our hypothesis is that such +%% %% solutions, while awkward and disadvantageous +%% %% in many +%% %% evident +%% %% %%%%%obvious +%% %% respects, +%% %% should not be discarded. +%% %% This is +%% %% because +%% %% +%% it +%% can +%% formalize a type of +%% allowed +%% growth-permitting function, +%% that is +%% not prohibited by $++$'s generalization of the Second Incompleteness +%% Theorem. +%% +%% + +%\smallskip + +\begin{deff} +\label{def-3.1} +\rm +Let us say +% an integer-valued +a function symbol +$F(x_1,x_2,...x_j)$ is {\bf `` 1-Definitive ''} iff it has only one +solution under its definition by an axiom system $\gamma$. +Let us call $~F~$ {\bf ``Indeterminate''} otherwise. +%(The remainder of this article +(Mathematicians +obviously typically avoid using +function definitions +%%%%%%%%%, $~F~$ +with +%that have +%%%% having +even two solutions, not to +speak of +what will be +\el{wow}'s +surprising +%dizzying +quantity +of +%potential +%possible +%% possibly $\aleph_1$ distinct + potentially infinitely many distinct +% number of +solutions. +This is +because such objects are typically more of a burden than a benefit. +Our conjecture +% , in this paper, +will be that a special new +Indeterminate function, called ``$~\theta~$'', will +be different and +offer +% an +%%%a surprisingly +%%% efficient means to eschew $++$'s prohibitions.) +a +%surprisingly efficient +means to eschew $++$'s +%prohibitions.) +prohibitions with pleasing levels of +% quantitative +efficency.) +% efficency.) + + +\end{deff} + + +% considered in the current article. +% Our +% % main +% conjecture will be that this unconventional +% approach is +% germane to the challenge posed +% by $++$'s +% % +% % broad-scale +% generalization of the +% %Second +% Incompleteness +% Theorem +% % +% %This is because our conjecture will be that +% % +% because the new +% proposed $~\theta~$ +% primitive +% will represent +% an efficient Indeterminate +% function +% that eschews $++$'s prohibitions.) +% \end{deff} + +% helpful when addressing +% the challenge +% We will traverse in +% an unconventional +% % the opposite +% direction in this article +% because +% our conjecture will be that +% Indeterminate functions +% with $\aleph_1$ different +% allowed solutions for +% \el{wow} +% formalize +% %% +% %% Definition \ref{def-3.1} +% %% % {def-2.6} +% %% %\eq{wow} +% %% will formalize +% %% a +% %% possible +% %% %feasible +% %% %plausible +% %% +% an +% avenue +% % available +% for evading $++$'s +% broad-scale +% generalization of the +% %Second +% Incompleteness +% Theorem.) +% +% (Our conjecture in this article will be that +% %% +% %%The next two sections +% %%will explore +% %%how +% %% +% \el{wow}'s indeterminate ``Q-Function'' symbol $F$ +% %%%can clarify +% is germane to +% the +% aspirations +% that +% Hilbert and G\"{o}del +% % expressed +% stated +% in +% % statements +% $*$ and +% $** \, $, $\,$when +% one employs an +% operator +% $ \, F \, $ +% that +% owns +% % has +% $\aleph_1$ distinct +% available +% solutions). +% \end{deff} + + +%%are viable, +%%especially in an automated theorem proving setting, +%%when Ambiguous function operatives are judiciously +%%employed. +%% + +%%! +%%! can +%%! %%and germane about automated +%%! %%deduction, will +%%! % theorem proving, +%%! %computational deduction, +%%! be satisfied by a self-justifying logic that employs +%%! one +%%! %single $\aleph_1$ +%%! Growth-Permitting function $F(x)$, +%%! that is +%%! % inherently +%%! ``ambiguous'', +%%! {\it accompanied +%%! by} a finite number of non-growth primitives +%%! % {\it non-growth} +%%! $G_1,~G_1,~... G_k$ +%%! that are ``unambiguous''. +%%! +%%! It will also be explained how such results should have useful +%%! applications for automated theorem proving, even when they +%%! employ +%%! only +%%! diluted forms of self-justifying logics. + +%% +%% \vspace*{- 1.0 em} +%% +%% \subsection{Main Notation Conventions} +%% % about Cantor's Paradise} +%% % \large +%% % \baselineskip = 1.8 \normalbaselineskip +%% +%% %\vspace*{- 0.7 em} + +%\gvxs + +{\bf More Notation:} +$~$Let us say +an axiom system $~\alpha~$ +has +{\bf Infinite Far Reach} iff +it relies upon +{\it only a finite number} of +axioms to +% distinct constant symbols +% (and/or axiom sentences) to +prove +for each $n$ +the +\el{farreach}'s invariant. + +%for each particular integer $n$. + +\vspace*{- 0.8 em} + +\beq +%% \small +\label{farreach} +\exists ~~x~~~ \mbox{Pred}^n(x)~\geq ~1 +\enq + +%\newpage + + +\nvxs + +\noindent +The ``ISINF'' axiomatic framework +from + \cite{wwapal} +was + a self-justifying +system with Infinite Far Reach. +%% +%% The opening paragraph of +%% \cite{wwapal}'s Section 6 +%% %%% quite +%% %was frank +%% warned the reader +%% about ISINF's limitations. +%% These arose because +%% +%% +%% It +%% used the word ``unnatural'' to describe +%% the ISINF system. +%% Such caution +%% % deliberately +%% % self-deprecating term +%% was appropriate because +%% +Unfortunately, this result was mostly useless because +nearly all + theorem-proofs +%of trivial theorems0000000 +from ISINF +were +longer than the number of atoms in the universe. + +\newpage +\parskip 0pt + +The reason +\cite{wwapal} defined ISINF, +%ISINF was worthy of mention, +despite +its evident impractical characteristics, +% +% such +% %%% these +% % plainly +% %%% obvious +% limitations, +% +was +because +ISINF +demonstrated some +unusual + self-justifying logics, +knowledgeable about their own Hilbert consistency, +were +{\it technically} +able to +prove all of Peano Arithmetic's $\Pi_1$ theorems +together with the +existence of +the infinite set of integers $ \, 1,2,3,... \, \, $. +This result +% is interesting because it casts +did cast +% casts +a +new +perspective +%light +on $\,++\,$'s +invariant +% $++$ (appearing on \pag2) +by showing how +{\it some unusual} +Type-NS +forms of self-justifying arithmetics +did +escape $++$'s almost-ubiquitous + reach +by managing to possess infinite far reach + without taking +% {\it without recognizing} +Successor as a total function. + + +%% of the current article. +%% The latter result indicated that Type-S arithmetics, recognizing merely +%% Successor as a total function, are unable to confirm their own +%% Hilbert consistency. +%% Yet, +%% %% despite this fact, +%% ISINF was able to produce an +%% {\it eye-squinting} caveat because it +%% supported the above ``Infinite Far Reach'' property +%% without +%% needing +%% %being able to prove +%% Line +%% \eq{totdefxs}'s declaration that successor is a total function. + +%\smallskip + +We sent an advanced copy of \cite{wwapal} +to +Pudl\'{a}k. +He +appreciated the nature of the challenge we faced. +% +% , +% concerning the delicate nature of self-justifying +% arithmetics that are +% able to prove +% % satisfy +% \eq{farreach}'s invariant +% {\it for each fixed $~n~$} while +% being prohibited +% by $++$ +% from +% recognizing successor as a total +% function. +% % (due to $++$'s restrictions). +% +% +Pudl\'{a}k's +subsequent +%private +%His +emailed communications +\cite{Pupriv} +suggested +that we look at +Ajtai's +work +\cite{Aj94} +about a +%the +Pigeon-Hole function + $~ \glamb(x)~$ defined by the identities +\eq{zm1} and \eq{zm2}. + +% \newpage +\vspace*{- 1.2 em} +\beq +%% \small +\label{zm1} +\forall ~~x~~~~~ \glamb(x)~ \neq ~ 0 +\enq + +\vspace*{- 1.2 em} + +\beq +\label{zm2} +%% \small +\forall ~~x~~~ \forall ~~y~~~~ x ~ \neq~ y ~~ \Rightarrow ~~ +\glamb(x)~ \neq ~\glamb(y) +\enq +The relevance of +$~\glamb~$ +% Pigeon-Hole functions +can be +best +%readily +appreciated +% if +when +%we let +$~\glamb^n(x)~$ + denotes +% the +a +term + $~\glamb(~\glamb(~ ... \glamb(x)))~$ +consisting of $~n~$ iterations of the $~\glamb~$ operator. +Then the below +% the +%%% \el{DUMB1}'s composite +term $~S_n~$ +% , defined below, shall +will +% then +satisfy +Pred$^n(~S_n~)~\geq ~1.~$ +%% +%% An axiom system, employing the primitive +%% operation +%% $~ \glamb~,~$ +%% can thus +%% can easily +%% prove +%% Line \eq{farreach}'s +%% assertion. +%% %claim. +%% %under almost all conventional logics. +%% +%% +\beq +% \vspace*{- 0.5 em} +\label{DUMB1} +S_n~~~=~~~\mbox{Max}[~\glamb(0)~,~\glamb^2(0)~,~\glamb^3(0)~,~...~~\glamb^n(0)~] +\enq +Pudl\'{a}k +observed +that +%the +% Pigeon-Hole function + $~ \glamb(x)~$ +will +grow too slowly +(under well-defined non-standard models) +% (in the worst case) +for +one to be able to +deduce +successor is a total function +from its properties. +%% +%% % further observed that it is known +%% \footnote{ +%% \tiny +%% \baselineskip = 0.94 \normalbaselineskip +%% The operation $\glamb(x)$ will grow +%% at a slower rate than Successor, +%% if it equals $x+1$ for all standard +%% numbers $~x~$ and if $\glamb(x)=x-1$ +%% when $~x~$ is +%% a non-standard integer. This seemingly minute detail +%% implies one cannot infer +%% Successor is a total function from +%% $\glamb$'s behavior.}. +%% +%% +%% +%% since the latter is contradicted by a +%% model where +%% all non-standard +%% numbers have +%% %their +%% sizes bounded by some fixed +%% % non-standard +%% number B. +%% (This +%% subtle +%% %detail, +%% raised by +%% Pudl\'{a}k's email \cite{Pupriv}, was fascinating because +%% it +%% %shows that +%% raised the question about whether +%% a partial exception to +%% Example \ref{ex-2.3}'s +%% invariant $++$ +%% %% on \pag2, +%% might plausibly exist.) }. +%% +%% +%% thus, +%% suggests the +%% Pudl\'{a}k-Solovay +%% version of the Second Incompleteness +%% Theorem (stated on \pag2) +%% might +%% %%%%%should +%% allow for +%% potential +%% exceptions +%% to it +%% arising from the +%% %delicate +%% formal +%% behaviour of +%% some +%% %% +%% %% presence of +%% %% %some +%% %% these permissible +%% %% +%% %% +%% non-standard +%% variants of +%% % interpretations for +%% the Pigeon-Hole function $\glamb$. }. +%% +%% +%that +%prove +%%% +%%% +%%% +%%% (in the worst case) +%%% for +%%% one to be able to +%%% deduce +%%% successor is a total function +%%% from its properties +%%% % further observed that it is known +%%% \footnote{ +%%% \tiny +%%% \baselineskip = 0.94 \normalbaselineskip +%%% The operation $\glamb(x)$ will grow +%%% at a slower rate than Successor, +%%% if it equals $x+1$ for all standard +%%% numbers $~x~$ and if $\glamb(x)=x-1$ +%%% when $~x~$ is +%%% a non-standard integer. This seemingly minute detail +%%% implies one cannot infer +%%% Successor is a total function from +%%% $\glamb$'s behavior.}. +%% +%% +%% since the latter is contradicted by a +%% model where +%% all non-standard +%% numbers have +%% %their +%% sizes bounded by some fixed +%% % non-standard +%% number B. +%% (This +%% subtle +%% %detail, +%% raised by +%% Pudl\'{a}k's email \cite{Pupriv}, was fascinating because +%% it +%% %shows that +%% raised the question about whether +%% a partial exception to +%% Example \ref{ex-2.3}'s +%% invariant $++$ +%% %% on \pag2, +%% might plausibly exist.) }. +%% +%% +%% thus, +%% suggests the +%% Pudl\'{a}k-Solovay +%% version of the Second Incompleteness +%% Theorem (stated on \pag2) +%% might +%% %%%%%should +%% allow for +%% potential +%% exceptions +%% to it +%% arising from the +%% %delicate +%% formal +%% behaviour of +%% some +%% %% +%% %% presence of +%% %% %some +%% %% these permissible +%% %% +%% %% +%% non-standard +%% variants of +%% % interpretations for +%% the Pigeon-Hole function $\glamb$. }. +%% +%% +%that +%prove +His insightful email \cite{Pupriv} asked +whether +the inequality +Pred$^n(~S_n~)~\geq ~1~$ +might +%would, +thus, +% still +enable a formalism, +% based around +utilizing the + $\, \glamb \,$ operative, +to +somehow +improve upon \cite{wwapal}'s results ? + + +% our +% formalisms could be +% revised +% %modified +% so that +% % the Pigeon-Hole function +% $~ \glamb(x)~$ +% could improve upon \cite{wwapal}'s results. + +%% +%%(possibly using Ajtai's methodologies \cite{Aj-focs}). +%%Sam Buss raised, interestingly, a +%%partially +%%similar +%%issue during an informal conversation +%% \cite{Bu-priv} in 1977. +%% +%%\smallskip +%% +%%These questions +%%% by +%%%Pudl\'{a}k and Buss +%%were insightful because they isolated +%%an +%%important juncture where $++$'s underlying methodology does not apply. +%%A partial answer to these questions appeared in +%%\cite{wwapal}'s closing section, but a more comprehensive full +%%answer has always eluded us. + +%This is because there always seemed to appear +%one wrinkle of details that precluded a full proof. + + +\smallskip + + +It was +initially + unclear +%%%%% to us +whether a positive answer to +Pudl\'{a}k's + probing + question would resolve ISINF's main difficulties. +This is +because +% Expression +\eq{DUMB1}'s +term +$~S_n~$ requires $O(~n^2~)$ logic symbols to encode +% essentially +an integer quantity +greater than + $~n~$ +(since its term +$~\glamb^j(0)~$ uses $O(j)$ logic symbols). +%an integer quantity that exceeds the quantity $~n~$ in size. +Thus once again, the quantity $~2^{100}~,~$ whose binary encoding +requires 100 bits, would require in excess of + $~2^{100}~$ bits to encode. +Such large quantities are obviously undesirable. + + +% Such impractical quantities are obviously distant +% from what is desired. + + +% Such quantities, exceeding the number of atoms in the universe, +% were troubling because our +% general +% goal has been to +% construct self-justifying arithmetics +% with pragmatic features. + + +%% that +%% possessed, at least, +%% some +%% partial facets of +%% pragmatic value. + + +% +% find a partial +% answer to Hilbert's +% Year-1900 Second +% Problem +% that would +% possess, at least, +% some +% partial facets of +% pragmatic value. +% + +\medskip +\nvxs + +The remainder of this section will outline how a different type of +Q-Function operator will +be +% much +better than + $~ \glamb~$ for meeting our needs. +During our discussion, +Power$(x)$ will denote +a primitive specifying +% that + $~x~$ is +a power of +$~2~$. +Its formal encoding +in $L^G\,$'s language + is illustrated by \eq{wep2}. +%% +%% It is +%% %formally +%% encoded +%% by +%% \eq{wep2} +%% because +%% %under +%% our Grounding language +%% has +%% ``Logarithm$(x) \,$''$ ~ = ~ \lfloor \,$Log$_2(x) \, \rfloor \,$. +\beq +\vspace*{- 0.6 em} +\label{wep2} +%\small +x=1 ~~~\vee ~~~ \mbox{Logarithm}(~x~)~\neq~\mbox{Logarithm}(~x-1~) +\enq +In this context, + $\zzthe(x)$ +will denote the analog of +the $\glamb(x)$ function +%% haphazard +that walks among the powers of 2 in a manner +similar to +$\glamb(x)$'s +% haphazard + walk through conventional +integers. +It is +% formally +defined by \eq{walk1}-\eq{walk4}. +% +% It will thus satisfy +% the axiomatic constraints below (which are +% $\zzthe(x)$'s analog of the more modest constraints given in +% % sentences +% \eq{zm1} and \eq{zm2}). +% The most important difference between these two constructs +% is that axiom \eq{walk1} requires that +% $\zzthe(x)$ maps power of 2 onto powers of 2. + +{ +%\small + +\vspace*{- 0.6 em} +{\parskip -6 pt +\beq +\label{walk1} +\forall ~~x~~~~~ \mbox{Power}(x) ~~~ \Rightarrow ~~ +\mbox{Power}(~ \zzthe(x)~) +\enq +\beq +\label{walk2} +\forall ~~x~~~~~ \zzthe(x)~ \neq ~ 1 +\enq +\beq +\label{walk3} +\forall ~~x~~~ \forall ~~y ~~~~[~ x ~ \neq~ y ~ +\wedge ~\mbox{Power}(x)~] + \Rightarrow ~~ +\zzthe(x)~ \neq ~\zzthe(y) +\enq +\beq +\label{walk4} +\forall ~~x~~~~~ \neg ~ ~\mbox{Power}(x)~~~~ \Rightarrow ~~~~ +\zzthe(x)~=~0 +\enq} } + +\vspace*{- 1.2 em} +\noindent +{\it It needs to be emphasized} that + \eq{walk1} -- \eq{walk4} will be the +{\it only vehicle} our +proposed formalisms will +%self-justifying axioms +%will +have available to construct +integers $\geq \, 3$. $~$These +axioms will be called +%They will be henceforth called +the {\bf $~$Up-Walking$~$} axioms. +(The axiom \eq{walk4} +is +% does not, +%% , technically, +unnecessary + to construct any +integer $\geq \, 1\, $, but it is helpful +for +% because +% it +% % allows us to +% formalizes +formalizing +how our methodology will treat integers +which are not powers of 2.) + +% \gvxs +% \svxs + +\smallskip + + +Both +$\glamb$ + and $\zzthe$ are +% unusual +% complicated +% entities +Q-functions +%because they +that +own +% potentially + infinitely many distinct +% $\aleph_1$ +% distinct +vectors, +%analogous +similar +to + Line \eq{wow}, +for representing them. +We will soon see +their +underlying +% computational + complexities +% properties +are +%sharply +%quite +surprisingly +different. + + +%% +%% they have sharply +%% contrasting +%% %%very +%% %sharply +%% %% different +%% computational +%% % complexity +%% properties. +%% + +%% Both +%% the +%% Q-functions +%% % the operators +%% $\glamb$ +%% and $\zzthe$ are +%% %awkward +%% challenging +%% to analyze +%% %challenging +%% %daunting +%% because there are +%% % a +%% % dizzying +%% $\aleph_1$ distinct +%% vectors, analogous to +%% Line \eq{wow}, +%% that are +%% %where their definitions permits +%% representations of these functions. +%% %% +%% %% Also, we may combine either operation with our +%% %% language $L^G$'s grounding function-primitives to formulate a term +%% %% $~T_n~$ that defines any arbitrary integer $~n~$. +%% %% +%% We will soon see that +%% there is, however, a +%% distinction +%% % major difference +%% between these +%% two concepts +%% from a +%% % computational +%% complexity perspective. + +\begin{definition} +\label{defx-3.2} +\rm +Let $~L^Q~$ +and $~L^{Q^*}~$ +denote the +extensions +of $~L^G\,$'s Grounding language that contain the +respective +additional +function symbols of + $\zzthe$ + and +$\glamb$. Then +$~~L^Q~$ shall be called the {\bf Q-Grounding} language, and + $~~L^{Q^*}~$ +will be called the {\bf Q* Grounding} language. +\end{definition} + +\begin{propp} +\label{th-3.3} +In contrast to the +Q* Grounding language +that requires $O(~n^2~)$ function symbols +for defining a term $~T^*_n~$ for representing the integer +$~n,~$ the Q-Grounding language +%% will need no more than +needs +% uses +only +$O(~$Log$^{ \, 3\,} \,n~)$ symbols to +encode +%formalize +a term +$~T_n~$ representing +$~n$. +\end{propp} + +\vspace*{- 1.0 em} + +\begin{center} +% \small +% Our proof of \phx{th-3.3} +\phx{th-3.3}'s +proof +will rely upon the following notation convention: +\end{center} + +\vspace*{- 0.8 em} + +\begin{definition} +\label{def-3.3} +\rm +Let + $~\zzthe^j(x)~$ +denote the term + $~\zzthe(~\zzthe(~ ... \zzthe(x)))~$ +where there are +$~j~$ iterations of the + $~\zzthe~$ operation. +% Throughout this article, +Then +%for any $~j \, \geq 1~,~$ +%the symbol +$~E_j~$ +will +% shall +% will +denote +the quantity produced by +\eq{ej-def}'s division operation: + +\vspace*{- 0.6 em} + +\beq +\small +\label{ej-def} + \frac{~\mbox{Max} +~[~\zzthe^{\, j \,}(1)~,~~\zzthe^{\, j-1 \, }(1)~,~... ~\zzthe(1)~~] } +{~~\mbox{Half}^{\,j\,} ~ \{ ~\mbox{Max}~[ + ~\zzthe^{\, j \,}(1)~,~~\zzthe^{\, j-1 \, }(1)~,~... ~\zzthe(1)~]~ + ~ \}~~ } +% +% \mbox{Max}(~\zzthe^j(1),~\zzthe^{j-1}(1),~... ~\zzthe^1(1)~ +\enq +It is each to see +$ E_j = 2^j $ for every +$j \geq 1$. +This is + because \el{ej-def}'s +twice-repeating + term +% object of +``$\, \mbox{Max} +~[~\zzthe^j(1), \zzthe^{j-1}(1),...\zzthe(1) \,]\,$'' +% is at least as large as $\, 2^j\,$. +is a power of 2 exceeding $\, 2^j\,$. +%% +%% The definitions of the +%% % Q-Grounding +%% functions of ``Half'', ``Max'' and +%% ``$~\zzthe~$'' imply +%% $~E_j~=~2^j~$ for each +%% $j \, \geq 1$. +%% +For the additional case where $~j=0~,~$ +we will +% formally +define $~E_0~=~1~$ (by +using the +%% +%%setting it equal to +%%our +%%%the +%% +built-in constant symbol +of $~C_1~$). +\end{definition} + +%% , which +%% is intended to +%% %formally +%% represent the integer of ``1''). + + + +{\bf Proof of \phx{th-3.3}:} +%The justification of \phx{th-3.3} is an +Easy consequence of +\dfx{def-3.3}'s machinery. Thus if $~n~$ is a power of +2 of the form $~2^j~$ then +% the preceding +% definition's +expression $~E_j~$ is a term representing $~n \,$'s value +that employs + $O(~$Log$^{ \, 2\,} \,n~)$ +logical +symbols. On the other hand, if + $~n~$ is not a power of +2 then it can be defined +with $O(~$Log$^{ \, 3\,} \,n~)$ symbols by +setting +$~E_j~$ equal to the least power of 2 greater than $~n~$ and +subtracting from $~E_j~$ those powers of 2 that are needed to +produce $\,n\,$'s value. +For example since $76~=~128~-~32~-~16~-~4~,\,$ it can +be formalized as a term $T_{76}$ defined by +$~E_7 \, - \,E_5 \, - \,E_4 \, - \,E_2 ~$. + +% $~~~~\Box$ + +% \baselineskip = 1.8 \normalbaselineskip + +\begin{definition} +\label{def-3.4} +\rm +A term in mathematical logic +is defined to be a syntactic object, built +out of +solely + symbols for representing +functions, +constants and variables. +% +% The nomenclature in +% % classical +% logic has +% %formally +% defined +% a {\it ``term''} to be a syntactic object, built +% out of symbols for representing +% functions, +% constants and variables. +% +% +Such an object is called +% either +a {\bf ``Ground Term''} +%% (or for precision a +%%% {\bf ``Tree-Oriented Ground Term''} ) +when it is built {\it out of solely} +function and + constant symbols. +For example in our Q-Grounding language (which +uses +%owns only +$ C_0 $, $ C_1 $ and $ C_2 $ +as its +built-in + constants), +% symbols), +the expression +%of +``$\, C_2- C_1\,$'' +is +% such +a Ground term. +Two more complex +examples of +Ground terms are +``Max$( C_2 , C_1 - C_0)$'' +and ``Max$( ~\zzthe(C_1)~,~C_2 ~)$''. +Also, +expression $~E_j~$ +in Line \eq{ej-def} +should be viewed as +a Ground term (when one +views +its +use of the +symbol + ``1'' as an %informal +abbreviation +for the +constant + ``$~C_1~$''). +\end{definition} + + +\begin{remm} +\label{rem-def-3.4} +{\bf (sharply improving upon + \phx{th-3.3}'s result) : } +\rm +A longer version of this article +will +%technically +distinguish between two +kinds of Ground terms, which it calls the +% +%{\bf Comment of Definition \ref{def-3.4}'s Notation:} +%We will distinguish between two +%kinds of Ground terms in Section \textsection \ref{ss6}, +%called its +{\bf ``Tree-Oriented''} and +{\bf ``Dag-Oriented''} formats. +The latter will differ from a more +conventional tree structure +by having a +Directed Acyclic Graph structure replace +a logic's +usual + tree format for defining its quantitative values. +It will turn out that + Dag-Oriented Ground Terms +will allow one to compress multiple repeating +terms into single objects. +This will +%and thus +reduce the number of logical symbols in + \phx{th-3.3}'s +$O(~$Log$^{ \, 3\,} \,n~)$ sized +%ground +terms to a + more compact +$O(~$Log$\, \,n~)$ quantity. +(This is almost analogous to the +% (in a context where the pointers to our +$O(~$Log$\, \,n~)$ +size of an integer's binary encoding, +except that we will need $O(~$LogLog$\, \,n~)$ +further bits to encode the pointers to +each +specified +object.) + \end{remm} + + +%% quantity +%% $O(~$Log$\, \,n~)$ +%% objects will require $O(~$LogLog$\, \,n~)$ +%% bits per pointer). +%% %(analogous to the classical binary encoding of an integer). + +% +% {\it This is the same length +% as would occur in a conventional +% $O(~$Log$\, \,n~)$ sized binary encoding of an integer.} +% We will refer to this improvement later in the current +% article because it will suggest that +% \phx{th-3.3}'s +% $O(~$Log$^{ \, 3\,} \,n~)$ sized ground terms attain a length +% not too different from the binary encoding of an integer, +% after further refinements are undertaken. +% + + + +\begin{definition} +\label{def-3.5} +\rm +A ground term +% $~T~$ will be +is +called an +{\bf ``Observable''} +object iff it has a +%{\it only one} +% an +unique +interpretation of its +quantified value in the +%meaning in our +Q-Grounding language. +It +%will be + is +called an +{\bf ``Unobservable''} iff it has multiple +%plausible +such +interpretations +due to $\zzthe$'s ``indeterminate'' definition +(e.g. see Definition \ref{def-3.1}). +\end{definition} + +%%% (due to the +%%% %uncountably +%%% ambiguous nature of +%%% % our built-in function +%%% $~\zzthe~~$). +%%% \end{definition} + +\begin{exx} +\label{ex-3.6} +\rm +The previously mentioned ground term +Max$( ~\zzthe(C_1)~,~C_2 ~)$ is an ``unobservable'' +because it can assume any of the plausible integer values +of $~2 \, , \, 4 \, , \,8 \, , \,16 \, + \, ... ~$. +On the other hand, + +\newpage + +\gvxs +\nvxs +\parskip 0pt + +\noindent +\el{xoo} +%is +provides +an +example of an +``observable'' +that + represents + the integer value of ``3''. +(This is because +its +twice-repeating +term +``$~\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~]~$'' is bounded +below by 4, causing the left and right sides of its subtraction +operation to differ by +% an amount of +exactly 3.) +\beq +%% \small +\label{xoo} +\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~] ~~-~~ +\mbox{Pred}^{\, 3 \,} \{~\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~]~\} +\enq +Our notation +%thus +also +implies that Line \eq{ej-def}'s + expression $~E_j~$ +is an + ``observable''. This implies, in turn, that + \phx{th-3.3}'s term $~T_n~$ is an ``observable'' + (employing +conveniently +no more than + $O(~$Log$^{ \, 3\,} \,n~)$ +logical +symbols). +\end{exx} +% +% +% For example since $76~=~128~-~32~-~16~-~4~,\,$ +% it follows that $~ T_{76}~$ +% corresponds to the term +% $~E_7 \, - \,E_5 \, - \,E_4 \, - \,E_2 ~$, +% $~$where each $~E_j~$ employs only +% $O(~$Log$^{ \, 2\,} \,j~)$ symbols. +% %%%%%\end{exx} + + +\nvxs +\hvxs + + +Thus, \dfx{def-3.5} and Example \ref{ex-3.6} have illustrated +%that +how +the realm of ``observable'' objects is a +% very +broad and accessible world, +of +potential usefulness. +% +% non-trivial +% %% pragmatic +% significance. +% +It allows every integer $~n~$ to be represented by a +% reasonably small +term $~T_n~$ with +% an +a tight + $O(~$Log$^{ \, 3\,} \,n~)$ length +(in a context where +Remark \ref{rem-def-3.4}'s refinement +% Section \textsection \ref{ss6}'s more elaborate formalism +%will allow us to +will +reduce this length +almost to a more compact +% +% nearly +% to a +% % far +% more +% attractive +% +$O(~$Log$ \,n~)$ magnitude). + + +The distinction between +``Observables'' and ``Unobservables'' +% ground terms +will +%also +%% +%% cast a +%% delightful +%% +offer a + new perspective on +the aspirations +% that +which +Hilbert and G\"{o}del +expressed +in +their +statements $*$ and $**$. +% +% under our proposed formalism. +It + will suggest +how the Second Incompleteness Theorem +can +% remain to +be seen as a majestic result +from a purist perspective, while +a {\it well-defined fragment} of +%their +what +Hilbert and G\"{o}del +sought in + $*$ and $**$ +%aspirations +%% in statements $*$ and $**$ +can +likely +%almost certainly +be +%part-way +satisfied (in at least a +% well-defined +limited sense). +% +% +% +% +% \begin{remm} +% \label{rem-3.7} +% {\bf (explaining the goals of this paper):$~$} +% \rm +% Let us say +% that +% a basis axiom system $~\alpha~$ owns +% a {\it ``Finitized Perspective''} of the Natural Numbers +% if it requires only a +% {\it finite number} of proper axioms +% to construct the full set of integers +% $~0,1,2,3~... ~$. All conventional arithmetics have this property. +% %It is useful to divide such +% Such +% logics +% %arithmetics +% fall into two categories, +% called {\it Single} and {\it Double-Formatted} systems. +% %as defined below: +% They are defined below: +% %These constructs are defined below: +% \bed +% \item[ a. ] +% %An axiom basis $~\alpha~$ +% %will be called +% {\bf Single-Formatted Arithmetics} consist of +% axiomatic basis systems +% % $~\alpha~$ +% %all of +% whose +% %iff all its +% ground terms are +% all +% Observables. +% (Most conventional arithmetics +% %%%% will +% %fall into this +% lie in this +% category +% %when the +% because they +% employ the +% growth +% % function +% properties +% of +% the Successor +% operation +% %function +% in +% % a straightforward +% %the +% %% a conventional +% the traditional +% manner.) +% %% since the +% %% the simple growth function of Successor +% %% easily +% %% generates +% %% all the natural numbers). +% %are {\it ``Single-Formatted Formatted''} logics. +% \item[ b. ] +% {\bf Double-Formatted Arithmetics} +% % representing +% represent +% systems +% %%%consisting of +% %%%%axiomatic +% %%%logics +% %%%%%basis systems +% whose ground terms +% may be either +% Observables +% or Unobservables. +% (Axiomizations +% for Q-Grounded logics +% %% of +% %% the +% %% % our +% %% Q-Grounding language +% are +% %%% will +% %obviously +% %%% be +% ``Double-Formatted'' +% because they +% allow $\theta$'s analog of +% \el{wow}'s function symbol $F$ +% to have +% an uncountable number of +% different allowed +% representations). +% % +% % (Our +% % Q-Grounding language +% % gives support to such a system. +% % This is because it +% % can have its function primitives +% % defined by a finite number of +% % proper axioms,) +% % %axiom-sentences.) +% % \ennd +% The distinction between +% categories +% %Items +% (a) and (b) is +% significant +% % important +% because +% Example \ref{ex-2.3} +% %%% \pag2 +% %%% had +% already explained how +% statement $++$'s generalization +% of the Second Incompleteness Theorem applies to +% any formalism recognizing Successor as a total function. +% Thus, Item (b)'s Double-Formatted logics +% are useful, if one wishes to consider alternatives +% to +% %formalism that do not recognize +% successor as a total function. +% %More precisely, +% In this context, +% +This will be because +Hilbert's +% famous +%Year-1900 +Second +Open +Problem +can be viewed + as a {\it 2-part question}, +composed of sub-queries Q-1 and Q-2: +%%%%% +%%%%% {\it 2-part question}. +%%%%%The separation of Hilbert's question into two parts, +%%%%%called Q-1 and Q-2, will allow +%%%%%%% +%%%%%%% This +%%%%%%% bipartite +%%%%%%% distinction +%%%%%%% is useful because it +%%%%%%% can enable +%%%%%%% +%%%%%the academic community to better +%%%%% with +%%%%% what Hilbert and G\"{o}del were +%%%%%seeking to accomplish +%%%%%in +%%%%%their +%%%%%statements +%%%%%of $*$, $**$ and $***$. +\bed +\small +\item[ {\bf Question Q-1$~~$}] {\it Are any axiom systems +able to + prove +theorems +verifying + their own consistency in a robust sense?$~~$} +The answer to Q-1 is clearly ``No'' because the combination + G\"{o}del's initial 1931 result \cite{Go31} with +%the +%further +Hilbert-Bernays's result +\cite{HB39} +and the Pudl\'{a}k-Solovay invariant $++$ +(from Example \ref{ex-2.3}) +%% \pag2) +imply +arithmetics of ordinary strength cannot prove +their own consistency in a robust sense. +\item[ {\bf Question Q-2$~~$}] + {\it Can +logic systems +%arithmetic logics +%axiomatizations of Arithmetic +% , at least, +%somehow +``appreciate'' +% (not formally ``prove'') + their +own consistency in some +{\bf REDUCED} sense, that is diluted +but not fully immaterial?} +$~~\,$The answer to +%question +Q-2 is +complex +%%% more complex than Q-1 +%less clear-cut +because +%several types of +some +arithmetics, +such as \cite{ww93,ww1,ww5,wwapal,ww9,ww14}'s paradigms, + can +formalize +% ``recognize'' +their +own consistency +using Example \ref{ex-2.5}'s +% a +Fixed-Point {\it ``I am consistent''} +axiom. +Moreover, + Definition \ref{def-3.5}'s +% further +separation of +the concepts of ``Observables'' from ``Unobservables'' +% +%the notions of Observable from Unobservable objects +% +raises +some +% further +% very +subtle issues beyond these distinctions. +\ennd + + +%% % sentence $\,\oplus\,$. +%% %%Using +%% %%%%%%%%%Under +%% % Using the notation from +%% Under +%% Lines +%% \eq{totdefxs}--\eq{totdefxm}'s notation, +%% these paradigms include: +%% % both: +%% \bee +%% \small +%% \baselineskip = .86 \normalbaselineskip +%% \item +%% Type-A arithmetics +%% \cite{ww93,ww1,ww5,wwapal,ww9,ww14} +%% %capable of +%% recognizing their self-consistencies under +%% either the deductive mechanics of semantic tableaux or one +%% of its cousins. (See especially \cite{ww14}'s +%% recent Wollic-2014 paper.) +%% \item +%% Type-NS arithmetics recognizing their Hilbert consistency, +%% such as the formalisms of \cite{ww1,wwapal} +%% %further +%% improved, possibly, +%% with the added techniques introduced in +%% this article. +%% \ene +%% +%% \ennd + +One theme +in +% the remainder of +this article will be that +the +Second Incompleteness Theorem represents a +$100 \, \% $ +full +% comprehensive +reply to question Q-1 +but only a +% and a + 90 \% +% adequate + reply to question Q-2. +Our +tiny +% only +%tiny + caveat to Q-2 will be related to Hilbert's +insistence that {\it some type of ``new formalism''} +% was needed +will be needed +to explain how +% it is +humans +motivate themselves to engage +in cognition. + +%The next section of this article will +% note + +Our discussion will +observe +% that +mathematicians +% had +made no distinction between +Unobservable and Observable ground terms during the +% early +1930's. +% We +It +will suggest +a +% tiny new +revised +interpretation can be assigned to the +% historic +%often-quoted +statements $*$ and $** \,$ +of +%by +Hilbert and G\"{o}del, +when one +views +them + from the perspective of +arithmetics that +rely upon indeterminate growth functions, +similar to $\theta$. + +%employ $\theta-$like +% growth functions. + +% logics that allow deploying unobservable ground terms. + + +% owns two types of ground terms. + +% looks more closely at these two types of +% ground terms. + + +%% where the remaining 5-10 \% fraction of +%% unresolved issues is connected to the +%% fundamental +%% distinction +%% separating +%% % separation of +%% Unobservable from Observable ground terms. + + +% that the final +% tiny remaining +% 5-10 \% +% gap, pointed to +% in +% % by +% Hilbert's and G\"{o}del's +% statements $*$ and $** \,$, can be viewed as +% being related to this +% fundamental +% distinction. + + +%% Some +%% %other insightful +%% different +%% approaches to these dilemmas + +%Some other + +Other insightful +approaches +to +% the +Incompleteness paradigms +are related to + Gentzen's perspectives about +transfinite induction +under his $\epsilon_0$ ordinal +\cite{Ge36,Ta87}, the +%% +%% +%% explore +%% how \cite{wwapal}'s results for a Single-Formatted logic +%% can be revised +%% % with our new $~\zzthe~$ function +%% under a +%% +%% Before +%% broaching +%% this topic it should be mentioned that +%% %0fascinating +%% other approaches to +%% %efforts to partially +%% the Second Incompleteness Theorem +%% % do +%% have centered around +%% + Kreisel-Takeuti's ``CFA'' +system \cite{KT74} +and +the {\it interpretational frameworks} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to +our +%% main +%\cite{ww93}--\cite{ww14}'s +methods. +%approach. +They +do not use +% Kleene-like +{\it ``I am consistent''} axiom-sentences, +similar to Example \ref{ex-2.5}'s +``SelfRef'' statement. +Also, +they +%apply to +employ +``cut-free'' logics +(rather +than +a +% preferable +Hilbert-style +deductive +apparatus). +%that +%%%%%%%%%%% explored +%%%%%%%%%%% in +%%%%%%%%%%% \textsection \ref{ss32} ). +%%%we are considering). +%% +%%Instead, CFA uses the +%%special +%%properties of ``second order'' generalizations of Gentzen's +%%{\it cut-free} +%%Sequent Calculus, +%%and +%%the +%%interpretational approach +%%formalizes how some systems +%%recognize their +%% Herbrand consistency +%%on localized sets of integers, +%%which +%%unbeknownst to +%%themselves, +%%includes all +%%integers. +%% +%%%These +% alternate +%%%approaches +Their +%alternate +% very + fascinating +perspectives +should +% certainly, + be examined by researchers +interested in the +% Second +Incompleteness Theorem, +but they are unrelated to +our +objectives +%IQFS formalism. + +\smallskip + + +%% During our +%% % description +%% investigation +%% of IQFS, + +Also during the next chapter, +the reader should keep +in mind that +Proposition \ref{th-3.3}'s +% characterization of the +$O(~$Log$^3 \, n \,)$ +lengths for encoding $T_n$'s ground terms can be reduced to +% an essentially +% a more compact +%nearly an + essentially an + $O(~$Log$ \, n \,)$ complexity, +when these terms are encoded +using +%under + Remark \ref{rem-def-3.4}'s +more compressed +Directed Acyclic Graph +% formalism. +methodology. +This fact will make IQFS's formalism look +% much +% significantly more tempting. +%%%% very +quite + tempting. + +% cccc ddddddd + +%% the next chapter's discussion. +%% +%% +%% Their insights are important but +%% unrelated to +%% our particular +%% % the next section's +%% %specific analysis of +%% %%% type of +%% Hilbert-styled self-justifying effects, +%% explored in the next chapter. +%% + + + +\gvxs + +\vspace*{- 0.6 em} + +\section{Proposed New IQFS Formalism} + + \label{ss32} +\label{ss5} + +\vspace*{- 0.6 em} + + +\nvxs + +% \rvxs + + +\parskip 1 pt + +The only aspect of our prior research that will be +related to our proposed new IQFS formalism +is the ISCE framework, +defined in \cite{wwapal}'s Sections 3 \& 4. +The next several paragraphs will review +\cite{wwapal}'s results, +so that a reader +can omit examining \cite{wwapal}. + + +% will not need to examine +% \cite{wwapal}'s +% formal treatment. +%results. +%%%%%%%%%%%%%%%for the reader's convenience. +%% +%% This section will +%% review \cite{wwapal}'s results in sufficient detail +%% so that a reader need not examine \cite{wwapal}'s formal +%% text, +%% +%% %%%%%definition of the ISCE axiom system. +%% +%% During our discussion, +%% + +% \lvxs +% \parskip 1 pt + +\smallskip + +During our +discussion, +%review of \cite{wwapal}'s results, +$~L^G~$ will again denote +our + ``Grounding-level'' +language +that +formalizes +%employs +\textsection \ref{seee3}'s +six non-growth +% functions of +operations of + Subtraction, Division, +Maximum, Logarithm, Root and Count determination. +%%% +%%% the six ``Grounding-level'' +%%% % non-growth +%%% functions defined on Page 5. +% +% consisting +% of +% the +% Subtraction, Division, +% Maximum, Logarithm, Root and Count operations. +% +Also, $\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ will denote +three constant symbols designating the +integers +%values +of +``0'', ``1'' and ``2''. +In a context where Pred$(x)$ is an abbreviation for +``$\,x \,- \, 1\,$'', +%% (or more precisely ``$\,x \,- \, C_1\,$'' ), +the ISCE axiom system +% from \cite{wwapal} +used +\eq{start}'s axiom + statement +to define + $\,C_0\,$, $\,C_1\,$ and $\,C_2~$: +% these three constants: +\begin{equation} +\label{start} +\small +\mbox{Pred}( C_0 ) = C_0~ \, \wedge ~ \, +C_1 \neq C_0~ \, \wedge ~ \, +\mbox{Pred}( C_1 ) = C_0 ~ \, \wedge ~ \, +\mbox{Pred}( C_2 ) = C_1 +\end{equation} +%Also, +The challenge +\cite{wwapal} +faced was its formalism could +not use any of the +% conventional +operations +%function-operations +of +successor, addition or multiplication to infer the existence +of larger integers from the initial constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ +(without violating $++$'s generalization of the Second Incompleteness +Theorem). +% +% This was because +% the Pudl\'{a}k-Solovay result $++$ +% indicated +% the +% presumption successor is a total function +% precludes +% most +% %axiom +% systems +% from recognizing their +% own Hilbert +% consistency. + +\smallskip + + +Our article +\cite{wwapal} +considered two +methods for achieving these tasks, +%alternatives +%to a conventional Successor +%function symbol +% for overcoming these difficulties, + called +the {\bf Additive} and {\bf Multiplicative Naming} +conventions. +They defined +some +further constant symbols $~C_3,~C_4,~ C_5,~ ...~$ +and $~C^*_3,~ C^*_4,~ C^*_5,~ ...~$ +where +%respectively +$~C_j~=~2^{j-1}~$ and $~C^*_j~=~2^{\, 2^{ \,j-2}}~$. + +\smallskip + + +The definition of these +% new +constants +% symbols +is +easy +%straightforward +under $L^G\,$'s +% Grounding-level +language. +% called $L^G~,~$ +%all of whose function objects are non-growth primitives. +This is because +Lines +\eq{newadd} and \eq{newmult} +%had +specify how +% that +two 3-way predicates, called +Add$(,x,y,z)$ and Mult$(,x,y,z)\,$, +%can +%do +encode the identities of +% can be encoded to specify, respectively, +$x=y+z$ and $x*y=z$. +Our additive and multiplicative +% naming +conventions +can, +%will, + then, define + $~C_3,~C_4,~ C_5,~ ...~$ +and $~C^*_3,~ C^*_4,~ C^*_5,~ ...~$ +%by using +via +an infinite number of instances of +%utilizing respectively + \eq{addcov} and +\eq{multcov}'s +%{\it infinitely long} +axioms: +%%%%%%%%%% schemas: +% two infinite schemas of axiom-sentences: +%% +%% that belong to our +%% ``Additive'' and ``Multiplicative +%% Naming Conventions'', +%% then the values for +%% $~C_j~$ and +%% $~C^*_j~$ can be easily derived from $j-2$ instances of +%% %respectively \eq{addcov} and \eq{multcov}'s +%% these +%% schema: +%% + + +{ +\small +\beq +\label{addcov} +\mbox{Add}(~C_{j-1}~,~C_{j-1}~,~C_{j}~) +\enq +\beq +\label{multcov} +\mbox{Mult}(~C^*_{j-1}~,~C^*_{j-1}~,~C^*_{j}~) +\enq} +The methodology in + \cite{wwapal} +%% employed \eq{addcov} and \eq{multcov}'s schema in a context where it +presumed +% assured +%the Y of +the ``names'' for its constants $ C_j $ +and $ C^*_j $ +had nice compact encodings using $O(~Log(j)~)$ bits. +Its formalism calculated +%, thereby, +the values of ``unnamed'' integers from +named entities via the {\it non-growth} Subtraction and +Division primitives. For instance since $~20~=~32-8-4~,~$ +the quantity 20 +can be encoded as $~C_6-C_4-C_3$. +%%%%%%%%%%%%%%%% under \eq{addcov}'s naming convention. + + +%% required +%% $O(~Log(j)~)$ bits. +%% Thus, the length of these encodings was +%% much +%% smaller +%% than the respective +%% numbers +%% % magnitudes of +%% $2^{j-1}~$ and $2^{2^{j-2}}$ +%% %that +%% these constants represent. + +\smallskip + + +The challenge \cite{wwapal} +faced was to determine whether +%it was possible to formulate +self-justification +was possible +under +%% either +\eq{addcov}'s +% ``Additive'' +or \eq{multcov}'s +% ``Multiplicative'' +%% naming +schema. +It found +%that + \eq{multcov}'s +multiplicative +% naming +convention was incompatible +with self-justification (due to its +%%very +speedy growth rate), +but +%In contrast, +\eq{addcov}'s additive +% naming +schema did +% conveniently, + permit self-justification. + +\medskip + +Our new proposed IQFS +axiom system is easiest to describe, if we first +review \cite{wwapal}'s definition of ISCE +and then +explain how our IQFS framework +%% +%% will improve upon +%% it (by not requiring +%% the definition of an infinite number of separate +%% constant symbols). +%% +can incrementally refine it. +The extension of our base-language $~L^G~$ +that includes the Additive Naming Convention (ANC)'s +additional constants + $~C_3,~C_4,~ C_5,~ ...~$ +will be called +an {\bf ANC-Based Language}. +It will be denoted +as $~L^{ANC}~$. +Also if + $\, t \,$ denotes any term in $\, L^{ANC} \,$'s +language, then +the quantifiers in +the two wffs of +$~ \forall ~ v \leq t~~ \Psi (v)~$ and +$\exists ~ v \leq t~~ \Psi (v)$ +will be called $\, L^{ANC} \,$'s +{\bf ``Bounded +Quantifiers''}. + + +\begin{deff} +\label{def-3.8} +\rm +The analogs of +% a + conventional +% arithmetic's +$\Delta_0$, $\Pi_n$ and $\Sigma_n$ +formulae +in the +language $L^{ANC}$ will be denoted as +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ + and $\Sigma^{ANC}_n$. +Thus, +a formula will be defined to be +$\Delta^{ANC}_0$ iff all its quantifiers are bounded. +The +%%%%%%%%% below +definitions +of $\Pi^{ANC}_n$ and $\Sigma^{ANC}_n$ +formulae are +% also +quite conventional: +\bee +%\small +\parskip -2 pt +\baselineskip = 0.8 \normalbaselineskip +\item +\small +Every +$\Delta_0^{ANC}$ formula is considered to +be +also +a +$\Pi_0^{ANC}$ and +an +$\Sigma_0^{ANC} $ expression. +%% +%% ``$~\Pi_0^{ANC}~ \,$'' and +%% % also +%% ``$~\Sigma_0^{ANC}~ \, $''. +%% +\item +A +formula +is called + $ \,\Pi_n^{ANC} \,$ +when it +% is +can be +encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ +where +%with +$\Phi$ is $\Sigma_{n-1}^{ANC}$ +\item +A formula +is called + $\Sigma_n^{ANC}$ +when it can be encoded as +$\exists v_1~ ...~ \exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{ANC}$. +\ene +\end{deff} + + + +%%\begin{deff} +%%\label{def3.9} +%%\rm + + \parskip 0pt + + +Given an initial axiom system $\beta,$ +the Theorem 3 of \cite{wwapal} defined a +self-justifying logic, called +ISCE$(\beta)$ +that could prove all +$~\beta\,$'s $\Pi_1^{ANC}$ theorems and +verify its own consistency under a Hilbert-style deductive +apparatus. It consisted of the following four +groups of axioms: +% +% \newpage +\begin{description} +\small + \parskip 2pt +\item +{\bf GROUP-ZERO:} +This +schema +% axiom group +will +use \el{start}'s axiom to define the constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ +and +%employed +%an infinite number of instances of +\el{addcov}'s Additive Naming +schema +%convention +to define + the further constants + $ C_3, C_4, C_5, ... $ +\item +{\bf GROUP-1:} +It is convenient to +define + ISCE's Group-1 and Group-2 +axioms using a notation that +will support \cite{wwapal}'s Theorem 3 +in a +% slightly + more +general sense than +appeared in \cite{wwapal}, +%%% under a slightly different notation convention, +% is transparently equivalent +% (but slightly different) from \cite{wwapal}'s counterpart, +so our +% a +new +% proposed +%%%% second + ``IQFS'' +formalism +(appearing later in this section) +% shall +will +%proposal shall +% framework will +be easier to define. +Let us +therefore + say a $\Pi_1^{ANC} $ sentence is {\bf Simple} +iff the only built-in constants it employs are +$\,C_0\,$, $\,C_1\,$ and $\,C_2$. +Then ISCE's Group-1 scheme will +allowed to + be any finite set of +simple $\Pi_1^{ANC} $ axioms, called $~S~,~$ +that is consistent with Group-zero schema and +which + has +the following +two +properties: +\bee +\item + The union of $~S~$ with ISCE's Group-Zero +axioms +%will be capable of proving +%do +will +prove +all true $\Delta^{ANC}_0 $ +sentences. +% +% statements which +% are true. +\item + The union of $~S~$ with ISCE's Group-Zero +scheme +%will be capable of proving +will +% do + prove +that +the ``=" and ``$\leq$" predicates +% own +support +their conventional +transitivity, reflexivity, symmetry and total ordering +properties. +\ene +Any finite set +$\Pi_1^{ANC} $ axioms +with the above properties can be used to define $~S~$ +and +support +%prove +an analog of +\cite{wwapal}'s Theorem 3, +by a trivial generalization +of +\cite{wwapal}'s results. +% +% \footnote{A formal proof of this generalization of +% \cite{wwapal}'s results is +% %absolutely +% entirely +% routine. +% % and omitted here for the sake of brevity.} +% For the sake of brevity, it is +% omitted.} +% +% of +% the methodologies from Sections 3 and 4 of +% \cite{wwapal}. (Thus, +% any such finite set $~S~$ supporting Conditions (1) and (2) +% can be employed +% by +% ISCE's +% Group-1 part.) +%%% +%%% and it is unimportant which +%%% particular defining +%%% set is used. +% +% BBB111 +% +% This +% % schema +% axiom group +% consisted of a finite +% set of +% $\Pi_1^{ANC} $ axioms +% %, CALLED $F$, +% defining ISCE's +% Grounding function primitives. +% %This means that +% For each such function $G$ and set of numbers +% $ {k}, {k_1}, {k_2}, ... {k_m}$, +% %the combination of +% the Group-Zero and Group-1 axioms +% %must +% will +% imply +% $ G( {k_1}, {k_2}, ... {k_m}) \,=\, {k} $ when +% this sentence is true +% \footnote{ \f55 +% Our +% $\Pi^{ANC}_1$ +% encoding for the +% Group-1 scheme needs, +% technically, +% % employ +% only +% employ +% the three constant symbol $C_0$, $C_1$ and $C_2$ for the +% union of all +% the +% Group-Zero and Group-1 axioms +% to satisfy +% their +% %its +% %the +% above requirements.} . +% The Group-1 schema +% of \cite{wwapal} +% will also +% assign the ``=" and ``$<$" predicates +% their conventional +% % logical +% properties. +% %footnoted property.} +% %% +% %%(Any finite +% %%set of $\Pi_1^{ANC} $ +% %%sentences meeting these conditions is +% %%suitable.) +% %% +\item +{\bf GROUP-2:} +Let +$\ulcorner \, \Phi \, \urcorner$ denote $\Phi$'s G\"{o}del number, and +$\mbox{HilbPrf}_{ \beta }(x,y)$ +denote a +%%%%%%%%%%% $\Delta _0^{ANC+}$ +$\Delta _0^{ANC}$ +formula indicating $y$ is a +Hilbert-styled +proof +from axiom system $\beta $ of the theorem +$x$. +% +% Suppose that +%$~\beta~$ uses the same Grounding function symbols as +%ISCE$^{ANC}(\beta)$, +%and it therefore generates +%a set of +%% $\Pi_1^{ANC+} $ theorems. +% $\Pi_1^{ANC} $ +%theorems. +% +For each +%$\Pi_1^{ANC+} $ +$\Pi_1^{ANC} $ + sentence $\Phi$, +the Group-2 schema +for ISCE$(\beta)$ +% +%was defined in \cite{wwapal} +%did +will +contain +% an +one +axiom of the form: +%% +%% \begin{equation} +%% \small +%% \label{group2nold} +%% \forall ~x~\forall ~y~ +%% ~~\{~~[~~ \sigma_{~ \ulcorner \, \Phi \, \urcorner +%% ~}(x)~\wedge~ +%% \{~ \mbox{HilbPrf}~_\beta +%% ~(~ x ~,~y~)~~]~~ +%% \Rightarrow ~~ \Phi~~ \} +%% \end{equation} +%% % {\bf IMPORTANT CLARIFICATION:} +%% %{\small +%% %%{{\bf DECIPHERING LINE \eq{group2nold}:$~$} +%% {{\bf Clarification:$~$ } +%% \el{group2nold} is {\it helpful} +%% because ISCE(\beta)$ can infer +%% \eq{group2old}'s {\it simpler statement} +%% directly +%% from the combination of +%% \eq{group2nold}, +%% % it, +%% the Group-1 schema and \el{deltf}'s definition of +%% ``$~\sigma~$''.} +%% +\begin{equation} +% \small +\label{group2old} +\forall ~y~~~\{~ \mbox{HilbPrf}~_\beta +~(~ \ulcorner \Phi \urcorner ~,~y~)~~ +\Rightarrow ~~ \Phi~~\} +\end{equation} +\item +{\bf GROUP-3:} +This last part of +%%%%%%%%%%%%%%% \cite{wwapal}'s +ISCE$(\beta)$ +% formalism +was + a single +self-referencing +$\Pi_1^{ANC}$ +sentence +stating: + %% essentially declaring: +\begin{quote} +% \small +%%%%%%%%%%%%% $ \oplus ~ \oplus ~~~$ +$ \oplus \oplus ~~~$ + ``There +%is +exists +no +Hilbert-style proof of 0=1 from the union of the Group-0, 1 and 2 +axioms with {\it THIS SENTENCE} (referring to itself)''. +\end{quote} +\end{description} +%{\bf CLARIFICATION:} +{\bf Clarifying $ \oplus \oplus$'s Meaning:} + $~$Several of our articles +\cite{ww1,ww5,wwapal,ww9} +employed +self-referential + $\Pi_1^{ANC}$ constructions, +similar +to +%%%%%%%%%the sentence + $ \oplus \oplus \,$, +as Example \ref{ex-2.5} had mentioned. +%% +%% whose +%% % precise implications were outlined in +%% significance was explained by +%% %formalized by +%% Example \ref{ex-2.5}. +%% +A reader can find +several +%detailed +slightly different + illustrations about how +$~ \oplus \oplus ~ $ +% $\, \oplus \oplus $'s +% self-referential statement +is encoded in these articles. + + +% +% Each of these articles provide examples of +% how analogs for +% $\, \oplus \oplus $'s +% self-referential +% statement +% are encoded. + + + +% If the reader wishes to see +% a formal encoding for +% $\, \oplus \oplus $'s +% %self-referential +% % Fixed-Point +% statement, +% %it +% one such example +% is provided by +% \cite{wwapal}'s +% Lemma 1. +% + + +\begin{deff} +\label{def-3.9x10} +\rm +Let $~I(~\bullet~)~$ denote +an operation that maps +an initial axiom basis $\, \beta \,$ onto an alternate +system $\,I(\beta)\, $. +(One example of +such an operation is the + ISCE$( \, \bullet \, )$ +framework, +that maps +an initial axiom basis of + $~\beta~$ onto +the alternate formalism of + ISCE$(\beta).~)~$ +Such an operation $~I(~\bullet~)~$ +is called {\bf Consistency Preserving} +iff $\,I(\beta)\, $ is consistent whenever +the union of + $\beta$ with the Groups 0 and 1 axiom schemas is +consistent. +\end{deff} + + +%Most of our research in +% \cite{ww93}-\cite{ww14} +% has + +Several of our research projects +%centered around +%had +employed + \dfx{def-3.9x10}'s +framework. +For instance, +%% +%% the +%% +%% +%% Its +%% %%% main +%% % central +%% focus in +\cite{wwapal} +demonstrated +%consisted of showing + the ISCE$( \, \bullet \, )$ +mapping was consistency preserving. +Thus if PA+ denotes the extension of +Peano Arithmetic that +includes +PA's traditional Addition and Multiplication +functions +%% +%% 1n addition to the conventional +%% functions of addition and multiplication +%% contains +%% +%% +plus $L^G\,$'s six +added +%previously mentions + Grounding-level function +primitives, +%functions, +then + ISCE$( \, $PA+$ \, )$ +will +be automatically +%be + consistent +(because PA+ was consistent). +% consistent whenever PA+ is consistent. +Hence while Peano Arithmetic is unable to +verify its own consistency, +% (on account of G\"{o}del's +% seminal 1931 discovery), +it is sufficiently agile to +prove the following relative-consistency statement: +\begin{center} +%% \small +$\#~~~$ If PA is consistent then + ISCE$( \, $PA+$ \, )$ is + self-justifying. + \end{center} +This +%The above +% statement + relative-consistency statement +%does offer +provides +a partial +positive +answer to +the +Q-2 version of Hilbert's Second Question. +It +captures +% Brad change encapsulizes +one +% positive +respect +in which +%such as +ISCE$( \, $PA+$ \, )$ +can {\it appreciate} its own consistency. +% +% \newpage +% +% \svxs +% +% \noindent +%This is because it formalizes one respect +This respect is, obviously, +only +of a limited nature +because $++$'s generalization of the Second +Incompleteness Theorem indicates +that +no Type-S arithmetic +can +% simultaneously +recognize +% {\it both} +its Hilbert consistency and +take +successor +to be + a total function. +%The consistency-preservation property of +% ISCE$( \, \bullet \, )$ +%dies, however, +It does, however, + raise the following +enticing + question: +\newpage + +\lvxs +\parskip 0pt + +\begin{quote} +$\# \, \#~ $ +\small +Can the infinite number of +distinct + constant symbols, employed by +ISCE's Group-Zero schema, be reduced to a finite size +by a Type-NS Self-Justifying Logic, +without resorting to \cite{wwapal}'s inefficient +``ISINF'' +methodology (which requires +a proof +having an expensive + $\Omega(N)$ length for constructing integers $N$ +whose binary encoding uses $O(~$Log$(N)~)$ bits) ? +\end{quote} +The remainder of this section will outline how an encouraging +answer to +$\, \# \, \# \, $'s query +is likely to +%%%should, +% conveniently +arrive, +%be plausible +when one +% carefully +%delicately +modifies ISCE's formalism +with the Q-function operative of $~\zzthe~$. + +\begin{deff} +\label{def-3.10} +\rm +Let $L^Q$ +% once +again denote the extension of +$~L^G\,$'s Grounding language that includes +the +% further + Q-function symbol of $\, \theta $. +Then +$\Delta^Q_0$, + $\Pi^Q_n$ and $\Sigma^Q_n$ +will, +intuitively, +%similarly + denote the +% 1-to-1 +analogs of +\dfx{def-3.8}'s +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ and $\Sigma^{ANC}_n$'s +formulae +in $~L^G\,$'s language. +In particular, if $~\Phi~$ +is one of an +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ or $\Sigma^{ANC}_n$ +formula, +then +% the formula +$~\Phi^Q~$ +will be called +% respectively +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +when +%if +it +differs from $~\Phi~$ +only +by + replacing each constant $~C_J~$ +from the set $~C_3,C_4,C_5...~$ +with Line \eq{ej-def}'s +% mathematically equivalent term of +term $~E_{J-1}~$. +\end{deff} + +\parskip 2pt + +%% 444444444444444 + +\begin{example} +\label{ex-3.11} +\rm +Suppose $~\Phi$ +is one of a +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ or $\Sigma^{ANC}_n$ +sentence that employs the three constant symbols +of $C_4$, $C_6$ and $C_{10}\,$ +for + representing the +three numbers +of 8, 32 and 512. +Let us recall +that + $E_3$, $E_5$ and $E_9\,$ +% do +formulate these three quantities +under Line \eq{ej-def}'s notation. +Then $~\Phi^Q$ will have an +identical definition as + $~\Phi$ +except each $C_j$ is replaced by +$E_{j-1}$. + + +A formula is, +moreover, + defined to lie in one +of the +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +classes +{\it only if} it is constructed in such a manner. +This fact +% brad assures +ensures +that all the terms employed in these +three classes of sentences are +{\it ``Observable''} terms. +Hence ``Unobservable'' ground terms are allowed in +$~L^Q\,$'s language, but {\it they are excluded} +from occurring in the +{\it ``end-product''} +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +theorems +that +%%will now be discussed. +%it proves ! +do +encapsulate +%formalize + the {\it intended use of +%its +this +formalism.} +\end{example} + + +\begin{deff} + \label{def-3.12} +\rm +The term {\bf IQFS($ ~\bullet~$)$~$} +will refer +to the self-justifying analog of + ISCE($ ~\bullet~$)$~$ +%that will be employed +under $L^Q\,$'s +language. +(The acronym ``IQFS'' stands for +``Introspective Q-Function Semantics''.) +In a context where $~\beta~$ is +%some i +an initial axiom +system that proves theorems +%under +in +the +language $L^Q$, the +system +%formalism + IQFS($ \, \beta\,$) +%$~$ +will +be defined as a + 4-part +formalism, +analogous to ISCE($\beta$), +except for the following +%relatively modest +three +relatively +modest +changes: +\bed +\small +\parskip 0pt +\item[ a. ] +The Group-Zero schema of + IQFS will +differ from ISCE's analog +by replacing +\el{addcov}'s ``Additive Naming'' schema with +the +Up-Walking axioms, +given in Lines \eq{walk1}--\eq{walk4}. +(This is because +the language $L^Q$ differs from + $L^{ANC}$ by +having the + Q-function operator of $~\zzthe~$ +define the formal quantities that are represented by +the constant symbols +of $~C_3,C_4,C_5~~....~$ +under $L^{ANC}.~~)$ +%% +%% Otherwise both +%% these +%% Group-Zero +%% schemes will be +%% identical. +%% Thus, +%% they +%% will +%% both +%% use \el{start}'s axiom to define the +%% three initial constants of +%% $\,C_0\,$, $\,C_1\,$ and $\,C_2\,~$. +%% +\item[ b. ] +All the $\Pi_1^Q$ axioms lying in IQFS's +Group-1 and Group-2 schemes will be +% identical +analogous to their counterparts +under ISCE, except they +will + employ +\dfx{def-3.10}'s machinery for translating + $ \,\Pi_1^{ANC} \,$ +sentences into +essentially their +% equivalent + $ \,\Pi_1^Q \,$ counterparts. +\item[ c. ] +The Group-3 axiom of IQFS +will be similar to ISCE's Group-3 +{\it ``I am consistent''} +axiom-statement, except +the latter's notion of ``I'' will reflect the above +changes in the Groups 0, 1 and 2 schemes. +It +%Thus, the new +%Group-3 axiom +will, +thus, +be a $\Pi_1^Q$ sentence declaring that +{\it ``There is no +Hilbert-style +proof of 0=1 from the union of the preceding axioms +with THIS SENTENCE (looking at itself)''.} +\ennd +\end{deff} + +%\noindent + +\bvxs +\parskip 2pt + +{\bf REVISITING THE Q-2 VERSION OF + HILBERT'S SECOND OPEN +QUESTION FROM THE PERSPECTIVE OF ``IQFS'' .} +$~$ +Let us recall +% that +\textsection \ref{ss4} indicated +that Hilbert's Second Open Problem could be +divided into two sub-queries, +that were +called Q-1 and Q-2. +The former query asked whether axiom systems could +verify their own consistency in a robust sense, and the latter +inquired whether some +{\it weaker but non-trivial} forms of +self-justification might exist. +The +Q-1 +paradigm +% +% former query +% addressed the larger part of Hilbert's +% open question. It +% % We already noted that the Q-1 version of this query +% +was definitively resolved in a negative direction +by the combination of G\"{o}del's initial Second Incompleteness +Effect, +its +generalization +appearing +% documented +in the +Hilbert-Bernays textbook \cite{HB39} and the +Result $++$ due to the combined work of + combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}. +In contrast, +we noted in +\textsection \ref{ss4} + that there +were other +issues raised by the Q-2 version of Hilbert's +question that were +not yet +fully +resolved. + +% \gvxs + +\smallskip + +It is within +this +context where +Definition \ref{def-3.12}'s IQFS framework is helpful. +The strong similarity between the definitions of ISCE and IQFS, +{\it by itself,} +suggests that IQFS is likely to satisfy a +consistency-preservation property analogous to ISCE. +Moreover, all the techniques that were used to prove +either $++$'s generalization of the Second Incompleteness +Theorem +% +% (due to the combined +% work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +% \cite{Ne86,Pu85,So94,WP87}) +% +or the related subsequent +results of +% +% generalizations +% %% of the Second Incompleteness Effect +% that +% Example \ref{ex-2.3} attributed +% to +% +Buss-Ignjatovic, +H\'{a}jek, +\v{S}vejdar +and Willard + \cite{BI95,Ha7,Sv7,ww1} +% \cite{BI95,Ha7,Sv7,ww1,wwlogos} +lose their relevance in IQFS's context. + +\medskip + +This is because a longer version of the current article +demonstrates +the Groups 0, 1 and 2 axioms of IQFS +{\it are unable} +to prove +% an invariant implying +successor is a total function, +while the +incompleteness results +of \cite{BI95,Ha7,Ne86,Pu85,So94,Sv7,WP87,ww1} +require taking +successor as a total function. + +% is +% precisely what is needed for these formalisms to +% become applicable +% to IQFS. + +% (because they require a counterpart of a successor +% function operation). + + + +\smallskip + +The properties of IQFS + are +interesting +% especially intriguing +from a +% Computer Science +Complexity perspective +because +\phx{th-3.3} showed +% that +every integer $\,n\,$ +can +%could +be encoded +%under it by +by +%via +a + term $T_n$ that has an $O\{~[~$Log$(n)~]^3~\}$ length. +This is +unlike the +%much +%%%%%%%%%% far worse +asymptote $\Omega(n^2)$ that results +when the +$~\zzthe$ primitive +(from Lines \eq{walk1}-\eq{walk4}) +is replaced by +Lines \ref{zm1} and \ref{zm2}'s +less efficient +primitive of +$~\glamb~$. +Moreover, Remark \ref{rem-def-3.4} +indicated +% our +that these + $O\{~[~$Log$(n)~]^3~\}$ lengths +could be reduced +to almost an $O\{~$Log$(n)~\}$ size if +$L^Q\,$'s Ground terms were encoded as +Directed Acyclic Graphs (rather than as tree-like objects). + +We consider it 99 \% likely that +{\it BOTH} +Definition \ref{def-3.12}'s +%precise +specified +formulation of +% the + IQFS($ ~\bullet~)$ +%construct +and its +% more compressed Dag +implied Dag +refinement +(using Remark \ref{rem-def-3.4}'s additional machinery) +%modification +will satisfy +a consistency preservation property analogous to ISCE. +If this +2-part +conjecture is correct, it will support our +hypothesis that the Q-2 version of Hilbert's Second Open +Question +% would +does +support some +{\it fragmentary} +positive results, +in the context of +% with regards to +Hilbert-styled deductive methods using the +$~\zzthe$ primitive for formulating growth among integers. + +Moreover, a reader should not be +especially + concerned that the Group-2 +axiom schemas for ISCE and IQFS involve employing +an infinite number of separate incarnations +of \el{group2old}'s axiom schema. +This is because these +Group-2 schemas +can be +% should be able to be +nicely + reduced to a +purely +finite size, with almost no loss +in +%of useful +information. This was done in \cite{ww14} +for the Group-2 +scheme +of its IS$_D(\beta)$ formalism, +with the latter +%%%%%%%%%%%%%%%% still +%where the +% +% germane Group-2 scheme was +% reduced to one +% single axiom sentence +% while the resulting +% +% latter +%formalism still +% produced +producing +isomorphic counterparts +of all of $~\beta \,$'s +full set of + $\Pi_1$ theorems +(e.g. see +%Sections 5 and 6 +\textsection $\,$5 +of \cite{ww14}). +The same methods will +% trivially +%routinely +easily +generalize for +%%%% the +% +% Analogs of the techniques from Sections 5 and 6 of +% \cite{ww14} +% % will easily +% apply to each of the +% + IQFS, +% axiom framework, +if it does satisfy +Definition \ref{def-3.9x10}'s +Consistency Preservation property (as we +conjecture it does). + +% it does). + +\vspace*{- 1.0 em} + +%\section{Broader Perspectives Produced by These Results} + + +\section{Concluding Remarks} + +\vspace*{- 0.8 em} + +\lvxs + +\label{nnnew} + +%\Large +% \baselineskip = 1.8 \normalbaselineskip + +There is no question that the +% Second +Incompleteness Theorem +%does imply +% demonstrates +illustrates +that +90-95 \% of the initial objectives of +Hilbert's Consistency Program were overly ambitious. +It would, nevertheless, be of interest if +some 5-10 \% +fragment of +Hilbert's +% initially +intended +goals +% objectives +were +partially + achieved. + +%% bbbbbb + +\smallskip + + +This is because it is difficult to fathom how humans +can +maintain +their psychological motive to engage in cognition without owning some +type of +% qualified +instinctive faith in their own consistency. +%% +%% Moreover, the close similarity between the defining structures of the +%% ISCE and IQFS frameworks strongly suggests +%% \cite{wwapal}'s proof of ISCE's consistency preservation property +%% should generalize for both +%% IQFS and +%% IQFS$^*$ under a more elaborate +%% % and sophisticated +%% inductive machinery. +%% +Moreover, it is fascinating that +the distinction between +Unobservable and Observable ground terms, using +Proposition \ref{th-3.3}'s and Remark \ref{rem-def-3.4}'s + $\, \theta \, $ operator, +% +% whose $O(~$Log$^3\,n )$ and $O(~$Log$~n )$ complexities +% are characterized +% by Proposition \ref{th-3.3} and Remark \ref{rem-def-3.4}, +% +%%%%%% +$\,$does +seem to +lend credibility to a +% fraction +{\it partial subset} +% {\it fragment} +of the goals +that +Hilbert and G\"{o}del +advanced +%% were seeking +in +% aspiring to in +their +statements $*$ and $**~$. + +\smallskip + +\nvxs + +Also, the last five minutes of a YouTube lecture +by Harvey Friedman, +entitled +% the +{\it ``The Blessing and Curse of Kurt G\"{o}del''}, +raised the question +\cite{Fr14} +of whether +some type of +{\it sharply circumscribed} boundary-case exception +to +the Second Incompleteness +Theorem +might be possible. + + +% +% could be evaded with some +% % new +% non-recursive function symbol +% (which under +% \cite{Fr14}'s +% % Friedman's +% hypothetical +% example +% involved deploying the laws of Physics +% instead of +% % rather than +% Lines \eq{walk1}-\eq{walk4}'s +% indeterminate definition). + + + +% (in a context where the broader ambitions of these +% two statements +% are clearly untenable). + +%% infeasible + + +%Thus, + +% \medskip + + +Our proposed IQFS +% axiom system +framework +is intended to +be no full remedy, +when the +traditional growth properties of the addition, +multiplication and successor function operations are replaced +by an +alternative $~\theta~$ function symbol. +It is only a partial solution, similar to our +alternative class of +partially +positive + results in +\cite{ww93,ww1,ww5,ww14}, +involving +%axiom systems +arithmetics +that + sacrifice +% sacrificed +their +understanding that multiplication is a total function +for the sake of gaining an appreciation of their +semantic +tableaux consistency. + +\smallskip + +Neither of these +% results +formalisms +are perfect, and +imperfections +will +% be ever-present +always be + present +%result +%be inevitable +when one +% explores +considers + the +% tight + dilemma posed by the +% +% must +% always +% % have to +% be tolerated +% +% when examining the dilemma posed by the +Second Incompleteness +Effect. +It is within such a context that +{\it a well-defined fragment} of +%what +the goals +% which +that +Hilbert and +G\"{o}del sought in +$*$ and $**$ +should be +%% +%% looks +%% %part-way +%% like it is probably +%% +% realistically feasible +possible to +reach +%realize +under +% some +certain +% % might be plausibly +% %possible +% should be +% possible +% to obtain +{\it meticulously defined weak-logic settings$\,$,} +if IQFS satisfies an +analog of ISCE's + consistency-preservation +property (as we conjecture it +will almost certainly + do). + +%\textsection \ref{ss5}'s conjectures about IQFS do +%old to be ture. + + +% special +% % broad +% % potential +% interest. +% + + + \medskip + +{\bf Acknowledgments:} +%%%%As several Sections 1-4, +%\textsection \ref{ss2}, +I am +% much +%very +grateful to +%was influenced by an emailed letter from +Pavel Pudl\'{a}k +for suggesting +\cite {Pupriv} +I investigate how to apply +% an analog of +Ajtai's study +\cite{Aj94} of Pigeon-Hole effects +for +refining my prior results about self-justifying logics. +(The combination of + Pudl\'{a}k's +insightful suggestion +% \cite {Pupriv} +and our +subsequent +% further + distinguishing +between the +$~\glamb ~$ and $~\theta~$ operators +has led to the +conjectured + improvement of +\cite{wwapal}'s ISCE formalism.) +% I am very grateful to Pudl\'{a}k for making this +% suggestion. +I also thank Bradley Armour-Garb +and Seth Chaiken + for +% many +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%several +comments +% about how to improve +that improved + the +%this paper's +presentation. + + +\footnotesize +% \tiny +\parskip -3 pt + +%\baselineskip = 0.92 \normalbaselineskip +\baselineskip = 0.5 \normalbaselineskip +%\baselineskip = 0.65 \normalbaselineskip +\bibliographystyle{abbrv} +\bibliography{aa} + + \end{document} +\newpage + +rrrrrrrrrrrrrr + + +\Large + + +On How the Introducing of a New $~\theta~$ Function Symbol Into Arithmetic's +Formalism Is Germane to Devising Axiom Systems that Can Appreciate Fragments +of Their Own Hilbert Consistency + + +Why a Small Fragment of Hilbert's Consistency Program +Ought to Be Feasible +for Hilbert-like Deductive Methods +After A New $~\theta~$ Function Primitive +Is Added to Arithmetic's Formalism + +AFTER A NEW ``$~\theta~$'' Function Primitive + + + \baselineskip = 1.5 \normalbaselineskip + +It is known that the combined work of Pudlak and Solovay, enhanced by some +added techniques of Nelson and Wilkie-Paris, implies no reasonable axiom +system can verify its own Hilbert consistency, when it recognizes Successor as +a total function and treats addition and multiplication as 3-way relations. +These considerations will lead us to examine unconventional axiomatizations +for arithmetic that continue to view addition and multiplication as 3-way +relations, but which replace the successor function symbol with an entirely +new operator, called the $\theta$ primitive. + + + +It is likely that this paradigm can be combined with the prior results in our +APAL 2006 paper to construct axiom systems that are seriously diluted but able +to verify their Hilbert-style consistency in some interesting fragmentary +respects. + + + +%% This operator will allow us to encode any integer n by a term $T_n$ whose +%% length will exceed the O(Log n) length of a binary encoding by only the +%% relatively small magnitudes formalized by our Proposition 3.3 and Remark 3.6. +%% It is likely that this paradigm can be combined with the prior results in our +%% APAL-2006 paper to construct axiom systems that are seriously diluted but able +%% to verify their Hilbert-style consistency in certain interesting respects. + + + +{\bf Keywords:} + +G\"{o}del's Second Incompleteness Theorem, +Hilbert's Second Open Question, +Bounded Arithmetic, +Distinction Between Semantic Tableaux and Hilbert Deduction, +Weak Arithmetics. + +\end{document} + +% \parskip 2pt + +The +significance +% roles +of +% Observations +(a) and (b) +%in our research +%from the current example, +will become +% more +evident +as this article progresses. +Essentially, our +prior research +% , +% best summarized in \cite{ww14}, +% has +% +% had +focused +% mostly +on Type-A arithmetics +that could verify their consistency under +% either +semantic tableaux deduction +and/or its near cousins. +%% +%% or some near-cousin of this concept +%% (e.g. see \cite{ww14}'s summary +%% of \cite{ww93}-\cite{ww9}'s results). +%% The +%% +(A 15-page summary of this research appears in +\cite{ww14}, + but +it +%the latter +does need to be examined.) +%%% +%%% is +%%% not +%%% % unnecessary to examine as +%%% a prerequisite for reading this paper. +%%% +%%% +%%% but this technical +%%% material does not need to be examined.) +%%% does hot need to examine +%%% this material for the +%%% +%%% +Our +% new +$~\theta~$ operator, defined in the next section, will +raise the question about whether a +% surprising +% powerful +new +class of +%new +Type-NS systems +will +%may +satisfy an analogous +property in the context of +Definition \ref{def-2.2}'s more pristine +Hilbert-style methodology for deduction. + +\medskip + +% have +% a similar property.(The article \cite{ww14} offers a nice 16-page summary +% of our prior results +% \cite{ww93}-\cite{ww9} +% about Type-A arithmetics, but +% none of these results will +% be +% needed +% % to be examined +% during our current article's exploration of +% the properties of the new % +% $~\theta~$ operator.) + +% It will be unnecessary for a reader to examine any of our + + +%% % year-2014 +%% Wollic-2014 paper \cite{ww14} +%% summarized and extended our +%% results about +%% semantic tableaux consistency. +%% % and this +%% The current +%% new +%% year-2015 +%% paper +%% will, now, +%% explore whether +%% systems can +%% also corroborate +%% their Hilbert-styled consistency +%% under certain well-defined circumstances. + +%% (and seek to explore the restrictions $++$ imposes upon +%% Hilbert-styled deduction). + +% +% (The latter topic +% % is +% %very +% %entirely +% %different +% differs +% from the former +% because +% constraint $++$ +% applies only +% to its +% particular +% domain.) + +%in the second context.) + + +%% The constraints imposed by $++$ +%% are challenging +%% because Type-NS arithmetics + +This +topic +% subject +is +interesting +%challenging +because +%% essentially all +Type-S arithmetics +are forbidden by $++$ from +verifying the consistency +of their own Hilbert-styled deductions +%%%%%%%%%%%%%%%%%%% (and conventional +%forms of +(while +Type-NS formalisms are +%typically + usually +quite weak). +%% +%% (Thus, our efforts +%% to design +%% self-verifying systems +%% must focus on +%% Type-NS arithmetics). +%% +Our new +$~\theta~$ operator, +together with +Proposition \ref{th-3.3} +and Remark \ref{rem-def-3.4}, +% and \ref{th-6.1} +will suggest a +%possible +% plausible +partial +solution to this +problem by +% daunting challenge by +illustrating how +an {\it unusual class} of +Type-NS arithmetics can efficiently construct the +full set of integers $~0,1,2,3,...~$ +% by finite means +{\it without using} +any of the successor, addition or multiplication +% functional +operations. + +% function symbols. + +As a result, we will suggest +a +% a {\it part-way} +% that an interesting +%%% non-trivial (although diluted) +{\it small fragment} +of what Hilbert +and G\"{o}del +% sought +% referred to +did seek +%sought +in +statements +$*$ and $**$ +% will +% be formally achieved +% become tempting +is likely +% be +viable +under Definition \ref{def-2.4}'s formalism. + + + +% +% This +% topic +% % subject +% is challenging because +% $++$'s +% Type-NS arithmetics +% % obviously +% have sharply circumscribed powers +% (demonstrating the +% broad reach +% % ubiquitous nature +% of +% %the Second Incompleteness Theorem's reach). +% G\"{o}del's +% second theorem). +% %% +% %% The current article will +% %% show, however, that +% %% some Type-NS arithmetics are +% %% substantially +% %% stronger than previously +% %% anticipated +% %% (and they will have useful applications +% %% in +% %% computer science settings). +% %% +% %% Thus in a context where +% %% the power of both G\"{o}del's initial +% %% Second Incompleteness Theorem and $++$'s strengthening of it +% %% are stunning +% %% and +% %% have pervasive implications, +% %% we will show that a +% %% {\it partial-and-much-less-than-full} +% %% fragment +% %% of what Hilbert +% %% desired +% %% in statements $*$ and $**$ an be +% %% positively achieved. +% %% +% The current article will +% %show, however, +% suggest, +% however, +% % that +% some Type-NS arithmetics are +% % , however, +% % significantly +% %% substantially +% more far-reaching +% than +% previously +% anticipated. Thus, a +% % well-defined +% {\it +% partial but non-trivial} fragment of what Hilbert +% and G\"{o}del +% % sought +% % referred to +% anticipated +% in +% statements +% $*$ and $**$ will +% % be formally achieved +% % become tempting +% look +% % be +% viable +% under Definition \ref{def-2.4}'s formalism. + + + +\end{document} + +% \textsextion + +%\setlength{\textwidth}{5.0 in} + +\gvxs + +Line 1 + + +Line 1 + + +Line 1 + + +Line 1 + + +%% eeeeee + +\newpage + +A theme of this article will be that +% distinction +the distinguishing +between questions Q-1 and Q-2 and +the separation of Observables from +Unobservables +is +related +% likely central +to the mystery +% that has enshrouded +enshrouding +the Second Incompleteness Theorem. +This is +%is germane to the aspirations of automated theorem proving +%will be germane to this article +because there +%is no doubt +can be no doubt that +% can be no question +%%%%%%%% that +the Second +Incompleteness Theorem is fully +robust +% result +from a purist +%pristine +mathematical perspective. +Yet, +it is still problematic to fully +% +% simultaneously +% % at the same time, +% it is +% hard to +% entirely +% +dismiss + Hilbert's 1926 +suggestion that + some +specialized forms of logics should +%declaration +%% +%% concerns +%% in $\,*\,$ +%% that +%% {\it ``the honor of human understanding''} +%% requires +%% examining +%% % explaining +%% % considering +%% how logic systems can +%% +possess +a type of well-defined + knowledge about their +own +internal +consistency. +(This is because it is +highly + awkward to explain how and why +human beings +are able to +%can +%manage to +motivate +their +%cogitations, +cognitive process, +% themselves to think, + if they do not own +some type of +% instinctive +internal +knowledge about their own + consistency.) + +% sufficient +% % enough +% knowledge about their +% % own +% internal +% consistency +% to motivate +% cognition. + +% Bad change above +%cogitation. +% themselves to cogitate. + +%%It is also +%%especially +%%% very +%%tempting +%%to divide Hilbert's Year-1900 +%%Open Question into its Q-1 and Q-2 separate parts +%% during the 21st century, +%%as computers share with humans cogitative abilities. +%% +%%Maybe DELETE above sentence ??? +%\end{remm} + +% \baselineskip = 1.8 \normalbaselineskip + +\smallskip + +The next +section will +formalize our +% new + proposed IQFS formalism. +% +% describe our +% 2-part +% conjecture about how +% %a +% Double-Formatted Logics are +% likely to +% %produce some +% cast +% new perspectives +% on +% this topic. +% %the nature of the Second Incompleteness Theorem. +% +Before starting this subject, it should be mentioned +that other unusual interpretations of the Second Incompleteness +Theorem have followed +from Gentzen's perspectives about +transfinite induction +under his $\epsilon_0$ ordinal +\cite{Ge36,Ta87}, the +%% +%% +%% explore +%% how \cite{wwapal}'s results for a Single-Formatted logic +%% can be revised +%% % with our new $~\zzthe~$ function +%% under a +%% +%% Before +%% broaching +%% this topic it should be mentioned that +%% %0fascinating +%% other approaches to +%% %efforts to partially +%% the Second Incompleteness Theorem +%% % do +%% have centered around +%% + Kreisel-Takeuti's ``CFA'' +system \cite{KT74} +and also +the {\it interpretational frameworks} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to +our +%% main +%\cite{ww93}--\cite{ww14}'s +methods. +%approach. +They +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Also, +they +%apply to +employ +``cut-free'' logics +(rather +than +a +% preferable +Hilbert-style +deductive +apparatus). +%that +%%%%%%%%%%% explored +%%%%%%%%%%% in +%%%%%%%%%%% \textsection \ref{ss32} ). +%%%we are considering). +%% +%%Instead, CFA uses the +%%special +%%properties of ``second order'' generalizations of Gentzen's +%%{\it cut-free} +%%Sequent Calculus, +%%and +%%the +%%interpretational approach +%%formalizes how some systems +%%recognize their +%% Herbrand consistency +%%on localized sets of integers, +%%which +%%unbeknownst to +%%themselves, +%%includes all +%%integers. +%% +%%%These +% alternate +%%%approaches +Their +%alternate +% very + fascinating +perspective +should +% certainly, + be examined by researchers +interested in the +Second +Incompleteness Theorem, +although +%but +it is +%% +% they are +unrelated to +our particular +% the next section's +%specific analysis of +%%% type of +Hilbert-styled self-justifying effects, +studied in the current article. + + +%% systems +%% formalizing +%% %verifying +%% their +%% own consistency +%% %%%%%Definition \ref{def-2.2}'s +%% %%% approximate +%% under +%% Hilbert-styled +%% deduction. + + +%deduction. +% Hilbert deduction. + +%methods. +%formalism. + + +%% It is, +%% % They +%% %are, +%% however, not germane to the next section's +%% perspective. + +%methodology. +%main formalisms. +%methods. +%results. + + % \baselineskip = 1.8 \normalbaselineskip + +%\section{ +%\small +%Improving \cite{wwapal}'s Results with a +%``Double-Formatted'' Logic } + +\newpage +xxxxxxxxxxx + diff --git a/nachlass/collected_dew_materials/2011-2019/2015-lfcs.tex b/nachlass/collected_dew_materials/2011-2019/2015-lfcs.tex new file mode 100644 index 0000000..68a4b23 --- /dev/null +++ b/nachlass/collected_dew_materials/2011-2019/2015-lfcs.tex @@ -0,0 +1,7915 @@ +%% 2015 sept 9 after submission CHANGES ONE SENTENCE IN EXAMPLE 2.5 + +%% 2015 sept 7 2.20 pm (after finding addrees) +%% after reding conclusion to BOB +% chipped off end + + +%% www.cs.albany.edu/~dew/algor + + +%% 2015 home august 24 11.2 am + +%% 2015 home august 22 1.1 pm (single space) + + + % 2015 july 4 3.4 am after spell 10.1 am after sinatra + + % 2015 july 2 3.15 pm + +%% 2015 july 2 2.50 pm upstairs + +%% 2015 july 1 10.30 am downstairs + + + +%% notarized notes 2015 april 2 6.3 am april 4 notarize again + +%% home 2014 feb 8 1.15am (new email address) + +%% home 2015 feb6 4.3 am suny 2.40 pm home 6.15 pm + + +%% gmail dan.willard.albany and Prof.DanEdwardWillard +%% gmail password cpZ9ar48s + + +%%% SUNY JAN 11 Brad Copy 8.4 pm + +%% SUNY jan11 5/30pm spell check + +%% 2015 HOME jan 10 9.4 pm pm New Abstratct + +%% 512 6932 + +%% Towards a Restructuring of Hilbert's Consistency Program + +% www.cs.albany.edu/~dew/algor/ + +%\documentclass[11pt]{article} +%\documentclass[10pt]{article} +% \documentclass[12pt]{article} +\documentclass[12pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + + + + +% \addtolength{\oddsidemargin}{-0.95in} + \addtolength{\oddsidemargin}{-0.9in} +%\addtolength{\oddsidemargin}{-1.0in} +% \addtolength{\oddsidemargin}{-0.95in} + +\setlength{\textheight}{9.6 in} +\setlength{\textheight}{8.8 in} +\setlength{\textheight}{9.3 in} +\setlength{\textheight}{9.55 in} +%above too short + + +\setlength{\textwidth}{6.3 in} +%% PRINT + +\setlength{\textwidth}{6.0 in} +\setlength{\textwidth}{5.4 in} + + +\setlength{\textwidth}{6.9 in} +%% \setlength{\textwidth}{6.7 in} + +% \setlength{\textwidth}{6.3 in} + + +% \setlength{\textwidth}{7.0 in} + + +% \setlength{\textwidth}{7.0 in} +% Above IDeall + + +%% \setlength{\textwidth}{6.4 in} +%%%% above brad with 11 point + +%\setlength{\textwidth}{6.0 in} +%\setlength{\textwidth}{5.7 in} + +%\setlength{\textwidth}{6.4 in} + +%\setlength{\textwidth}{5.5 in} + +%\addtolength{\topmargin}{-1.0in} +\addtolength{\topmargin}{-0.95in} +%\addtolength{\topmargin}{-1.0in} +%\addtolength{\topmargin}{1.2in} + +%\addtolength{\topmargin}{-.95in} +%\addtolength{\topmargin}{+.7in} +%%% delete above for pdf + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{dff}[theorem]{$~~~~$ Definition} +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\nop{ } +\def\nxp{ } +\def\nxp{ Here $~$NXP } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pag5{Page 5} +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{Fact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + +%\title{Rough Summary of March 2012 Research Before I Attended +%the AMS March 17-18 Conference} + + +%% \title{ On +%% How the Revival of a Diluted +%% Version of +%% Hilbert's Consistency Program +%% %is +%% Should +%% Likely +%% Be +%% % Plausible and +%% % Veru +%% Germane +%% to Computer Science} + + + +% \title{ A 2-Part Conjecture about How + + + + +\title{Why a Small Fragment of Hilbert's Consistency Program +Ought to Be Feasible +for Hilbert-like Deductive Methods +After +A New $~\theta~$ Function Primitive +%AFTER A NEW ``$~\theta~$'' Function Primitive +Is Added to +A New $~\theta~$ Function Primitive +Arithmetic's Formalism} + + +\title{Why a Small Fragment of Hilbert's Consistency Program +Ought to Be Feasible +for Hilbert-like Deductive Methods +After A New $~\theta~$ Function Primitive +%AFTER A NEW ``$~\theta~$'' Function Primitive +Is Added to Arithmetic's Formalism} + + +\title{On How the Introducing of a + New $~\theta~$ Function Symbol +Into Arithmetic's Formalism Is Germane +to Devising Axiom Systems that Can +Appreciate Fragments of Their Own +Hilbert Consistency} + + + +%% +%% \title{On the +%% Likelihood +%% That a +%% Curtailed but +%% Well-Defined +%% Fragment +%% of +%% Hilbert's Consistency Program +%% Should be +%% Feasible +%% for the +%% Case of +%% Hilbert Deduction} + + +% \title{On the Almost-Certain Likelihood +% That a Sharply Curtailed but +% Well-Defined +% %Significant +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Ought to be +% %Plausible +% Feasible +% for the +% % Even the Challenging +% Case of +% Hilbert Deduction} + + + +% +% \title{ On +% How a Much-Diluted but Non-Trivial +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Is +% Likely +% %Plausible +% Feasible +% for Even the +% Challenging +% Case of +% Hilbert Deduction} +% +% %Plausible and +% % Veru +% % Germane +% %to Computer Science} +% +% +% %%% \title{\large \bf On the Revival of a Much-Diluted +% %%% but Non-Trivial +% %%% Version of +% %%% Hilbert's Consistency Program (And Its Applications +%%% for Computer Science, Mathematics and Philosophy)} + + +% \title{\large \bf On the Revival of a Modified and Diluted Version of +% Hilbert's Consistency Program (Extended Abstract)} + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E. Willard \thanks{This research +was partially supported +by the NSF Grant CCR 0956495. +%Email = dew@cs.albany.edu.}} +%\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{University at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + +%\begin{abstract +\baselineskip = 1.17 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + + +% PERTECT TITLE ABOVE ALTHOUHG PERHAPS OLD MANUSCRIPT BETTEDR + +\begin{abstract} + +%\Large + +% \baselineskip = 1.8 \normalbaselineskip +%aaaaaaaaaaa + +\large +\LARGE + \normalsize + + + It is known that the combined work of Pudl\'{a}k and Solovay + \cite{Pu85,So94}, enhanced by some added techniques of Nelson and + Wilkie-Paris \cite{Ne86,WP87}, implies no reasonable axiom system can verify + its own Hilbert consistency, when it recognizes Successor as a total function + and treats addition and multiplication as 3-way relations (as Example + \ref{ex-2.3} will explain). These considerations will lead us to examine + unconventional axiomatizations for arithmetic that continue to view addition + and multiplication as 3-way relations, but which replace the successor + function symbol with an entirely new operator, called the ``$~\theta~$'' + primitive. + +\medskip + +%% This $~\theta~$ operator +%% will +%% allow us +%% to encode any integer $~n~$ by a term $~T_n~$ +%% whose length will exceed the $O(~$Log$~n~)$ length of a +%% binary encoding +%% by +%% only the +%% relatively +%% small magnitudes formalized by +%% Proposition \ref{th-3.3} and Remark \ref{rem-def-3.4}. +% Proposition 3.3 and Remark 3.6 + +It is likely that this paradigm can be combined +with our prior results from \cite{wwapal} +%%% +%% with the prior results +%% in our APAL 2006 paper +%% REMOVE NEXT lINE +to construct axiom systems that are +seriously +diluted but +able to verify their Hilbert-style +consistency +in some interesting fragmentary respects. + +\end{abstract} + +\bigskip +\bigskip +\bigskip +\LARGE + +% ttttt THIS PAPER SHOULD BE MASTER DRAFDT for future articles. + + +\bigskip +\bigskip +\bigskip + + +\normalsize + +{\bf Keywords:} +Bounded Arithmetic, +G\"{o}del's Second Incompleteness Theorem, Hilbert's Second +Open Question, +Semantic Tableaux Deduction, +and Hilbert +Deduction. + + + +\bigskip + + +% {\bf Keywords:} +% G\"{o}del's Second Incompleteness Theorem, Consistency, Hilbert's Second +% Open Question, +% Hilbert-styled Deduction (and its Frege-like analogs). + + + + +% \bigskip +% +% +% +% {\bf Mathematics Subject Classification:} +% 03B52; 03F25; 03F45; 03H13 +% +% +% +% \bigskip +% \bigskip + + + +% {\bf Please Cite this Paper as:} +% {\rm http://arxiv.org/abs/1108.6330}, +% appearing in Cornell Archives + + + + + + + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +%\begin{abstract} +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +\newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + +\def\gvxs{ } + + +\def\gvxs{ \baselineskip = 1.0 \normalbaselineskip \parskip 2pt} +\def\gvxs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \baselineskip = 1.0 \normalbaselineskip \parskip 0pt} + +\def\gvxs{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 7pt} +\def\gvxs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvxs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + + +\def\gvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvxs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvxs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + +\noindent + + +\newpage + +\def\gvxs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvxs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvxs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvxs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvxs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvxs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvxs{ } + + +\gvxs + +\footnotesize + + +\def\gvxs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvxs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvxs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvxs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvxs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvxs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvxs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvxs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvxs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvxs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvxs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvxs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvxs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvxs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + + \def\gvxs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + +% \def\gvxs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + + + + \def\gvxs{ \Large \baselineskip = 2.15 \normalbaselineskip \parskip 2pt} + \def\lvxs{ \Large \baselineskip = 2.18 \normalbaselineskip \parskip 2pt} + \def\svxs{ \Large \baselineskip = 2.11 \normalbaselineskip \parskip - 2pt} +\def\hvxs{ \Large \baselineskip = 2.18 \normalbaselineskip \parskip 3pt} + + + + + + + + + + + \def\gvxs{ \large \baselineskip = 2.75 \normalbaselineskip \parskip 2pt} + \def\lvxs{ \large \baselineskip = 2.78 \normalbaselineskip \parskip 2pt} + \def\svxs{ \large \baselineskip = 2.71 \normalbaselineskip \parskip - 2pt} +\def\hvxs{ \large \baselineskip = 2.78 \normalbaselineskip \parskip 3pt} + + + \def\fvxs{ \normalsize \baselineskip = 1,46 \normalbaselineskip \parskip 2pt} + \def\fvxs{ \normalsize \baselineskip = 1,47 \normalbaselineskip \parskip 2pt} + \def\gvxs{ \normalsize \baselineskip = 1,47 \normalbaselineskip \parskip 2pt} + \def\lvxs{ \normalsize \baselineskip = 1,48 \normalbaselineskip \parskip 2pt} + \def\svxs{ \normalsize \baselineskip = 1,41 \normalbaselineskip \parskip - 2pt} + % \def\svxs{ } +\def\hvxs{ \normalsize \baselineskip = 1,48 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 1pt} + + + + \def\fvxs{ \normalsize \baselineskip = 1,66 \normalbaselineskip \parskip 2pt} + \def\fvxs{ \normalsize \baselineskip = 1,67 \normalbaselineskip \parskip 2pt} + \def\gvxs{ \normalsize \baselineskip = 1,67 \normalbaselineskip \parskip 2pt} + \def\lvxs{ \normalsize \baselineskip = 1,68 \normalbaselineskip \parskip 2pt} + \def\svxs{ \normalsize \baselineskip = 1,61 \normalbaselineskip \parskip - 2pt} + % \def\svxs{ } +\def\hvxs{ \normalsize \baselineskip = 1,68 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 1pt} + + + + \def\fvxs{ \normalsize \baselineskip = 0.96 \normalbaselineskip \parskip 2pt} + \def\fvxs{ \normalsize \baselineskip = 0.97 \normalbaselineskip \parskip 2pt} + \def\gvxs{ \normalsize \baselineskip = 0.97 \normalbaselineskip \parskip 2pt} + \def\svxs{ \normalsize \baselineskip = 0.91 \normalbaselineskip \parskip - 2pt} + % \def\svxs{ } +\def\rvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\hvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.0 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 1.0 \normalbaselineskip \parskip 2pt} + +\def\hvxs{ \normalsize \baselineskip = 1.35 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.35 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 1.35 \normalbaselineskip \parskip 2pt} + + + % \def\svxs{ } + +%moving +\def\rvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\lvxs{ \normalsize \baselineskip = 0.99 \normalbaselineskip \parskip 2pt} +\def\hvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.0 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 1.01 \normalbaselineskip \parskip 2pt} +\def\tvxs{ \normalsize \baselineskip = 1.01 \normalbaselineskip \parskip 2pt} + +\def\rvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 3pt} +\def\lvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 3pt} +\def\hvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 2.01 \normalbaselineskip \parskip 2pt} +\def\tvxs{ \normalsize \baselineskip = 2.01 \normalbaselineskip \parskip 2pt} + +%moving +\def\rvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip + 3pt} +\def\lvxs{ \normalsize \baselineskip = 0.99 \normalbaselineskip \parskip 2pt} +\def\hvxs{ \normalsize \baselineskip = 0.98 \normalbaselineskip \parskip 3pt} +\def\bvxs{ \normalsize \baselineskip = 1.0 \normalbaselineskip \parskip 3pt} +\def\nvxs{ \normalsize \baselineskip = 1.01 \normalbaselineskip \parskip 2pt} +\def\tvxs{ \normalsize \baselineskip = 1.01 \normalbaselineskip \parskip 2pt} + +\def\tempvxs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 3pt} + +%\def\tempvxs{ } + +\lvxs +\nvxs + +%%% IGNORE BELOW: + +%% NOTE TO ME: Page 5 is cited in paper. needs to BE UPDATED +%%% AND prehaps GO BACK OLD FORM. + + +%%% iiiii +\section{Introduction} + +\label{ss1} +\label{ss2} + +\vspace*{- 0.5 em} + +We have published a series of articles about generalizations +and boundary-case exceptions for the Second Incompleteness Theorem +in \cite{ww93}-\cite{ww14}. One theme of this literature was that +such boundary-case exceptions will arise when multiplication +is treated as a 3-way relation by a system which verifies its own consistency +%in a +under +semantic tableaux deduction. +% instead of Hilbert deduction +%%%%%%% context. +A 15-page summary of +this research appeared +in +\cite{ww14}, but the latter is +not +% unnecessary to examine as +a prerequisite for reading this paper. + + +%% our prior research +%% about this topic +%% was provided in our +%% Wollic-2014 paper \cite{ww14}, but it is unnecessary for a reader +%% to examine \cite{ww14} as a prerequisite for this paper. + +\smallskip + +The main shortcoming in our prior research was that our formalisms +were mostly unable to recognize their own consistency under +Hilbert-style deductive methods. This was because a version +of the Second Incompleteness Theorem, +due to the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, indicated the mere assumption that the successor +operation was a total function was sufficient to trigger off the power +of the Second Incompleteness Theorem +for logics that verified their own consistency relative to Hilbert +deduction. In particular, only our paper \cite{wwapal} +% (which was +%by coincidence invited by editor Sergey Artemov to appear in APAL) +was +% exclusively +devoted to addressing this problem. +Its ISCE formalism could verify its own Hilbert consistency, but it +unfortunately required deploying an infinite number of separate constant +symbols because the presence of even a successor function symbol +would trigger off the Second Incompleteness Effect for systems corroborating +their own Hilbert consistency. + +The current article will introduce a modification of \cite{wwapal}'s +ISCE formalism, called IQFS, that +addresses this +% should help partially resolve this +challenge. It will introduce a +% new +function symbol, called the ``$~\theta~$'' +primitive, that will enable an arithmetic to construct the infinite +collection of +% positive +integers, +{\it without using} counterparts of any of the +% conventional growth +% function +% primitives of +successor, addition or multiplication +function-mappings. + +\medskip + +It is almost certain that \cite{wwapal}'s proof of ISCE's +consistency preservation property will generalize for the +current article's IQFS formalism. +We will provide no proof supporting our conjecture in this +extended abstract, but the intuition +behind it +% supporting our conjecture +will become quite evident. +Its gist will be that our proposed +new $~\theta~$ +primitive +%will be +should likely be +germane to +%{\it some special} +{\it some unusual} +axiom systems owning a +{\it small +% quite +fragmentized} knowledge about their own consistency. + + +%% +%% The proof of +%% IQFS's self-justifying properties will, +%% however, be much longer +%% than +%% % +%% \cite{wwapal}'s proof of its analogous Theorem 3 +%% (if the latter result is proven with the same level of detail +%% and +%% % 100 \% +%% rigor that Theorem 3's proof did receive). +%% We will sketch in this short conference abstract the intuitive +%% reason why IQFS should satisfy +%% an analog of ISCE's consistency preservation property, but +%% % provide +%% no formal proof +%% will be provided. + +% a formal consistency preservation property, exactly analogous to ISCE. + +%% I do +%% not want to write up such a proof in a context where I am currently +%% suffering from Diabetes and Hypertension. It is essentially +%% 99 \% +%% certain that this article's proposed new +%% $~\theta~$ operator should support our conjecture. +%% The purpose of this article will be to invite the +%% research community to investigate how one can +%% expand the mini-formalism from +%% \cite{wwapal}'s Theorem 3 to rigorously prove our +%% stated conjecture. + +% +% \section{More Detailed Description of Goals} + +%\label{ss2} + + +% This article will define a new +% ``$~\theta~$'' +% function symbol +% that should enable unusual logics +% %% +% %% % 5-10 \% +% %% boundary-case +% %% effect where a +% %% system can own +% %% +% to own a +% {\it diluted but tangible} knowledge about +% their own +% % its +% %own +% consistency. + +\bigskip + + +%% {\bf More Detailed Description of Goals} +%% % +%% % It is known the +%% % +%% G\"{o}del's + +%More precisely, + +During this article, we will often note +the +Second Incompleteness Theorem +was +%known to be + published in two +% quite +different + forms during +1931-1939. +Its initial 1931 variant, formalized by Theorem XI +in G\"{o}del's +% millineal +paper \cite{Go31}, +% +% +% Its Theorem XI, +% later known as the ``Second Incompleteness +% Theorem'', +% %, +% %appearing in G\"{o}del's millennial paper \cite{Go31}. +% +demonstrated +% that +no extension +of +% axiom systems, +% roughly corresponding to +the +% Russell-Whitehead +Principia Mathematicae formalism +% $\, P \,$ +could +% could + verify +its own consistency. +The widely quoted more general +result, that +every consistent r.e. +extension + of Peano Arithmetic must +be unable to prove a theorem affirming its +own consistency, +was +first +published +%% +%% (see \footnote{ Boolos states in \cite{Bool} +%% that it has been open to scholarly debate +%% whether or not the 1939 +%% Hilbert-Bernays generalization of the Second Incompleteness Theorem +%% is or (is not) a straightforward generalization of +%% G\"{o}del's initial result} ) +%% +in the 1939 edition of +the Hilbert-Bernays +textbook \cite{HB39}. + +% It has been considered +% to be the definitive demonstration of the broad reach of +% the Second Incompleteness Effect. + +%% +%% It also established, beyond any reasonable doubt, that any type +%% of formalism possessing a conventional knowledge of its own consistency, +%% must rely upon a +%% foundational structure +%% fundamentally different from Peano Arithmetic. +%% (This is because the +%% Hilbert-Bernays +%% textbook formalized the forerunner of +%% what has now been known as the +%% Hilbert-Bernays Derivability Conditions \cite{HB39,HP91,Lo55,Mend}, +%% as a mechanism for +%% % foreseeing +%% envisioning +%% the +%% astonishing +%% broad generality of the +%% Second Incompleteness Effect.) + + +It is, thus, fascinating that Hilbert, +as the co-author of +% an important +a +%very +% historic +generalization of the Second Incompleteness Theorem, +never withdrew the +% chose to never fully withdraw his +1926 justification + \cite{Hil26} +for his consistency program: +\begin{quote} +\small +\baselineskip = 0.9 \normalbaselineskip +$*~$~ +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding''} +% itself.''} +\end{quote} + + +%% Indeed, +%% %Instead, +%% Hilbert +%% always insisted some +%% new formalism would revive his consistency program +%% and had its +%% motto +%% ({\it ``Wir m\"{u}ssen wissen, $~$Wir werden wissen''} ) +%% engraved on his tombstone. + + +% Moreover, it +% +It +is also +known +\cite{Da97,Go5,Yo5} +that G\"{o}del +was +% also +doubtful about the generality of the Second Incompleteness +Theorem for at least two years after its publication. +He thus inserted the following +cautious caveat into +his famous +1931 +% millennial +paper \cite{Go31}: +% whose closing section +%%% +%%% One of the closing paragraphs of +%%% \cite{Go31} +%%% thus +%%% included +% +% +%%% contained the following cautious disclaimer: +%caveat: +% \newpage +\begin{quote} +\small +\baselineskip = 0.9 \normalbaselineskip +\it +$~**~~$ +``It must be +% expressly +noted that +Theorem XI +%'s incompleteness result +(e.g. the Second Incompleteness Theorem) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and there might +conceivably be ... '' +% finite proofs} which cannot +% be stated in P or in ...'' +\end{quote} +The +% above 1931 +statement $**$ has +had +%been subject to +numerous +%many +different +interpretations + \footnote{ + Some + scholars + have interpreted + $\,**\,$ + as + %as, possibly,' + anticipating + % + % attempts + % to confirm Peano Arithmetic's consistency, + % via + % either + % + Gentzen's formalism or + G\"{o}del's Dialetica interpretation.}. +All + G\"{o}del's +biographers +\cite{Da97,Go5,Yo5} +%%%have +have noted +% +% +% +% (with +% some +% scholars +% viewing it as germane to +% Gentzen's formalism or +% G\"{o}del's Dialetica interpretation). +% +% \gvxs +% \nvxs +% \bvxs +% %\parskip 1pt +% +% \noindent +% The +% % above 1931 +% statement $**$ has +% had +% %been subject to +% numerous +% %many +% different +% interpretations +% (with +% some +% scholars +% viewing it as germane to +% Gentzen's formalism or +% G\"{o}del's Dialetica interpretation). +% % +% % \footnote{ +% % Some +% % scholars +% % have interpreted +% % $\,**\,$ +% % as +% % %as, possibly,' +% % anticipating +% % % +% % % attempts +% % % to confirm Peano Arithmetic's consistency, +% % % via +% % % either +% % % +% % Gentzen's formalism or +% % G\"{o}del's Dialetica interpretation.}. +% % +% All +% G\"{o}del's +% biographers +% \cite{Da97,Go5,Yo5} +% %%%have +% noted +% % +% % +% +% +% +his +% % that G\"{o}del's +initial intention +was +to +establish +%achieve +Hilbert's proposed objectives, before +%he proved +proving +%proving +% G\"{o}del proved +a result +% +% however, +% %%%%%his +% G\"{o}del +% did originally +% seek +% % goal was +% to +% establish +% %achieve +% Hilbert's proposed objectives before +% proving +% % G\"{o}del proved +% a result +% +leading +%that led +in the opposite direction. +Yourgrau \cite{Yo5} +records +%furthermore, + how +von Neumann +% surprisingly +%did +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive +%%% achievement of a' + termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +It is known + G\"{o}del +began to +more fully +endorse +the Second Incompleteness +Theorem +during a 1933 +%% Vienna +lecture \cite{Go33}, +and he +% told biographers he +strongly +%completely +% fully +embraced it +after learning about Turing's work +\cite{Tur36}. + +\smallskip + +Our research +in \cite{ww93}-\cite{ww14} +%has been +has been +% is +related to issues +%analogous + similar +to those +%that were +raised by Hilbert and +G\"{o}del +in + statements $*$ and $**$. +This is because it is counter-intuitive and awkward to +%presume that +explain how +human beings can maintain the +psychological drive and +needed energy-desire to cogitate, without +being stimulated by +{\it some type (?)} of instinctive faith in their own +consistency. The new ``$~\theta~$'' primitive, introduced in the +current article, will +further + reinforce this perspective. + +% (under a definition of +% % formal consistency +% such +% % this concept +% that is suitably +% gentle and +% % delicate +% soft +% to +% be consistent with the +% Incompleteness Theorem's requirements). + +% preclude a violation of the +% restrictions imposed by the Incompleteness Theorem). + + +\smallskip + +We emphasize + that +%our current +the present +paper will differ from +all our prior research (except for \cite{wwapal}'s +trial-balloon result) +{\it by changing the focus from +semantic tableaux deduction to a Hilbert-style +deductive methodology.} + +\smallskip + +%\parskip 0pt + + +%% +%% Accordingly, our research in +%% \cite{ww93}-\cite{ww14} +%% has explored both generalizations and +%% boundary-case exceptions of the Incompleteness Effect, so as +%% to determine what type of boundary-case evasions are permitted. +%% Our prior research in \cite{ww93}-\cite{ww14} +%% had used mostly cut-free forms of deduction to +%% evade the +%% restrictions imposed by the +%% Second Incompleteness Effect. The current article will instead +%% focus on more pristine Hilbert-Frege methods of deduction. +%% They are likely to support an evasion of the Second Incompleteness +%% Effect when our axiom systems replace the traditional +%% growth properties of the addition, multiplication and successor +%% function symbols with our new $~\theta~$ primitive. +%% +%% \smallskip +%% +%% The motivation for this replacement will be +%% explained during the next section of this article. +%% It is needed +%% essentially +%% because +%% a +%% version of the Second Incompleteness Theorem, +%% due to the +%% combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +%% \cite{Ne86,Pu85,So94,WP87}, +%% %will show +%% demonstrates +%% that +%% if an axiom system $~\alpha~$ +%% proves any +%% of \eq{totxtefs} - \eq{totxtefm}'s totality statements +%% then it is incapable of confirming its own consistency +%% under a Hilbert-style deductive method. +%% +%% +%% +%% +%% +%% \smallskip + +Our results will suggest it is possible to obtain a +{\it part-way 5-10 \% +positive} interpretation +for what +Hilbert and G\"{o}del +% advanced + were seeking +% a Consistency Program +to establish +%% seeking to accomplish +% contemplating +in their +statements +$*$ and $**$, within a context where +it is known that the +Second Incompleteness Effect precludes a full achievement of +%these +Hilbert's +objectives +from ever transpiring. +The last five minutes of +a +recent + 60-minute YouTube +presentation + by Harvey Friedman +\cite{Fr14}, +entitled +% the +{\it ``The Blessing and Curse of Kurt G\"{o}del''}, +suggested that it is +%the themes of Hilbert and G\"{o}del's +%remarks $*$ and $**$ by indicating that +%it is +interesting to explore futuristic partial +boundary-like evasions of the Second Incompleteness Theorem, +despite the stunning strength of +G\"{o}del's result. +It is within this context where our proposed use of a new +$~\theta~$ primitive +symbol to replace the growth properties +of the traditional addition, multiplication and successor function +symbols may be of potential interest. + +\smallskip + +The development of our $~\theta~$ primitive +was +% partially +influenced by a private email +communication +we +% had +received +from +Pavel Pudl\'{a}k \cite{Pupriv}, +as \textsection \ref{ss4} +% \ref{ss3} \& \ref{ss4} +%shall +will +explain. +We also emphasize that the +%conventional +usual +interpretation of +the +% Second +Incompleteness Theorem, as precluding +Hilbert's Consistency Program from +% ever +achieving its initially +specified objectives, is certainly correct. +{\it Our only caveat} is that +some +{\it very tiny} 5-10 \% +% perhaps +{\it fragmentized part} +of Hilbert's and G\"{o}del's aspirations in +$*$ and $**$ ought to be viable. + +%fragment of its objectives ought to be viable. + + +%% the latter should not lead one +%% to +%% ignoring the role that a +%% human's instinctive faith in his/her's internal +%% consistency +%% %crucially stimulates and motivates +%% plays in stimulating and motivating +%% human cognition. + +%% +%% It is +%% from this +%% special +%% perspective where our prior research and +%% new +%% results +%% %2-part conjecture +%% will +%% % does +%% suggest that +%% an approximate +%% %at least a +%% 5-10 \% +%% fragment +%% % fraction +%% of what Hilbert and G\"{o}del +%% %suggested in +%% had +%% sought +%% in $*$ and $**$ +%% %could +%% should be +%% plausibly +%% %is +%% %% be formally +%% feasible. +%% + + +%\gvxs + +\vspace*{- 0.6 em} + +\section{Starting Perspective} +% 222222} +\label{ss3} + +\vspace*{- 0.6 em} + +%%! +%%! This article will be written in a style so that its +%%! overall theme (if not full details) +%%! should become +%%! {\it quickly} comprehensible to a reader who has +%%! examined +%%! only +%%! one of the +%%! % introductory +%%! logic textbooks by say Enderton, +%%! Fitting, H\'{a}jek-Pudl\'{a}k, +%%! Mendelson +%%! or Papadimitriou \cite{End,Fi96,HP91,Mend,Papa}. +%%! %% +%%! %% We will rely mostly upon the +%%! %% precise +%%! %% deductive calculi notation employed +%%! %% in Section 2.4 of Enderton's textbook, +%%! %% but any of +%%! %% the +%%! %% similar +%%! %% Hilbert-style deductive calculi of +%%! %% H\'{a}jek-Pudl\'{a}k, +%%! %% Mendelson +%%! %% or Papadimitriou \cite{HP91,Mend,Papa}. +%%! %% will also be suitable for achieving our results. +%%! +%%! %% +%%! %% +%%! %% ( Papadimitriyou's textbook +%%! %% generously states it employs a deductive notation +%%! %% that +%%! %% has +%%! %% stemmed from its predecessor in +%%! %% Enderton's textbook.) +%%! +%%! + + + +%% In order to make our +%% results +%% %research +%% apply to the +%% formalism + +It is helpful to employ a flexible vocabulary so +% that our +our +results +will apply +%research +%to the +%formalisms +to any of the +%% +%% accessible to +%% some +%% readers who are acquainted with only one of the +%% +textbook +formalisms of +% settings outlined by +% +say +Enderton, +Fitting, H\'{a}jek-Pudl\'{a}k, +or Mendelson +\cite{End,Fit,HP91,Mend}. +% +% , +% %% or +% %% Papadimitriou +% %% \cite{End,Fit,HP91,Mend,Papa}, +% %% +% %% +% %the widest +% % possible +% %audience, +% it is +% helpful +% % useful to +% use +% %employ +% a +% % very +% flexible +% vocabulary. +% %% +% %%that +% %%allows a reader to +% %%%quickly +% %%%translate results +% %%traverse +% %%from +% %%one textbook to another. +% % Therefore, let us define a +Let us +% thereby +call an +%\newpage +% +%\noindent +ordered pair $(\alpha,d)$ a + {\bf ``Generalized Arithmetic''} +% therefore +iff its +% first and second +two components +%% +%% Each of the +%% textbooks \cite{End,Fi96,Mend,Papa,HP96} have +%% employed +%% substantially +%% different variants of Basis and +%% Deductive-Apparatus structures. +%% +are +% described +formalized +% defined +as below: +%% +%% Their +%% definitions in +%% Items (1) and (2) +%% %simple +%% %%%definitions of these two notions +%% %given below, +%% allow one to easily translate +%% %theorems +%% formalisms +%% % methodologies +%% from +%% one textbook +%% % source +%% to another: +%% +%% %\njp +%% % \newpage +%% \parskip 2pt +\bee +\item +The {\bf ``Axiom Basis''} $~\alpha~$ +for an arbitrary arithmetic +shall be defined as +the set of +{\it proper axioms} employed by the +formalism $( \alpha , d )$. +\item +An arithmetic's {\bf ``Deductive Apparatus''} $~d~$ +is defined as +the +{\it combination} of its formal rules for inference +and +%its +the + built-in + logical axioms ``$~L_d~$'' +% (that are +% implicitly +employed by these rules. +\ene + +%%%\item +%%%The term {\bf ``Deductive Apparatus''} $~d~$ will +%%%refer to the +%%%{\it combination} of the rules of inference +%%%used by an arithmetic and its +%%%the logical axioms ``$~L_d~$'' that +%%%render meaning to +%%%%are an automatic part of +%%%$~d\,$'s machinery. + + +\begin{exx} +\label{ex-2.1} +%\label{ex-basis} +\rm +This notation +allows one to + conveniently separate the logical axioms +$~L_d~,~$ associated +with $( \alpha , d )~$, from + $\, \alpha \,$'s + ``basis axioms''. +%basis axioms +It also allows one to isolate +and compare +% , conveniently, +various +apparatus techniques, +%technique, +% employed in the exact formalisms +including the + $~d_E~$, + $~d_M~$, + $~d_H~$, +and $~d_F~$ +methods +%that we will now define: +defined below: +%% +%% Three +%% examples of this are illustrated below, +%% in a context where +%% are the deductive apparatus machineries defined +%% in Enderton's, Mendelson's and Fitting's textbooks +%% \cite{End,Fi96,Mend}. +%% +\bed +\item[ i. ] +The $~d_E~$ apparatus, +formalized in +\textsection + 2.4 of Enderton's textbook, +% will +uses only modus ponens +as a rule of inference. +The latter will be accompanied +by +a +4-part +system of + logical axioms, +called $~L_{d_E}~$, $\,$ to endow + $~d_E~$ +with an +ability to support +% apparatus +% agility so that it supports +%can satisfy +%the analog of +G\"{o}del's Completeness Theorem. +%% ' +%% (similar to other' +%% % full-scale ' +%% deductive methodologies).' +%% +%%%% +%%%% (Papadimitriyou's +%%%% % in-depth exploration +%%%% textbook \cite{Papa} about +%%%% % examination of +%%%% the Logic-Computer interface +%%%% relies +%%%% explicitly +%%%% upon +%%%% % uses +%%%% Enderton's +%%%% % underlying +%%%% apparatus mechanism.) +%%%% +%% %uses +%% relies upon +%% Enderton's +%% approach $d_E$.) + +%% %relies +%% does rely +%% upon +%% Enderton's apparatus +\item[ ii. ] +The $~d_M~$ +apparatus in +\textsection 2.3 +of Mendelson's textbook +and the $d_H$ + apparatus +in \textsection 0.10 +of the H\'{a}jek-Pudl\'{a}k's + textbook +employ a more compressed set of logical axioms +than $\, d_E \,$, +but +they +instead +use +two rules of inference +% (formalizing separately +( modus ponens and generalization). +%% plus a smaller set of logical axioms, which Mendelson +%% has called A1-A5. +%% Also, the $d_H$ +%% apparatus +%% on pages ???? +%% of the +%% H\'{a}jek-Pudl\'{a}k textbook +%% uses a slightly different variation of a generalization. +%% (In the end, +In the end, +% both + $~d_M~$ +and $~d_H~$ +prove the same +% set of +theorems +as $~d_E~$ with +only +% minor and +unimportant changes in +proof length. +\item[ iii. ] +The +``semantic tableaux'' + $\,d_F \,$ +apparatus in +Fitting's +and Smullyan's +textbooks +\cite{Fit,Smul} +was + the +% main +focus of our +investigations in \cite{ww93,ww1,ww5,ww6,ww14}. +It will be rarely used +in the current article, +however. +Unlike + $~d_E~$, $~d_M~$ and $~d_H~$, it +employs no logical axioms. +It instead + uses a more complicated rule of inference. +This tableaux apparatus +% and also Resolution, have been + has +% been found to have many +many +%a wide array of +applications +% underfor +in +automated deduction, +although it is +less efficient than + $ d_E $, $ d_M $ and $ d_H $ +in +% under +% extremal +worst-case +environments. +% settings. +%circumstances. +\ennd +\end{exx} + +\tvxs + +\begin{dff} +\label{def-2.2} +\rm +Each of the +% deductive +methods of + $ d_E $, $ d_M $ and $ d_H $ +have the property that if a theorem $\, \Psi \,$ +has a proof +with length $~L~$ + from an arbitrary +axiom basis $~\alpha~$ +under one of these deductive systems, +then it will have a proof from these other formalisms +with lengths bounded by Polynomial$(L)$. +The term +{\bf ``Hilbert-style''} deductive method will, +thus, refer to any deductive +% apparatus will refer to any other +apparatus $~d~$ that +has a modus ponens rule and +employs +% similarity has its +proof lengths +% being +equivalent to within a polynomial magnitude +to +%of +the comparable proof lengths from $d_E$, $d_M$ and $d_H$. +\end{dff} + + +%% and which +%% also +%% assures +%% that the proofs of any +%% two theorems $~\Phi~$ +%% and $~\Psi~$ +%% (under $d$ from any +%% axiom basis $~\alpha~$) +%% will +%% always +%% have +%% % by more than a constant factor +%% the sum of the lengths of the proofs +%% of $~\Phi \rightarrow \Psi ~$ and $~\Phi~$ +%% % under $~d~$ from $\alpha$ always +%% formally +%% bound the length of +%% $~\Psi\,$'s proof. +%% \end{dff} + + +\begin{exx} +\label{ex-2.3} +%\label{ex-basis} +\rm +Some added notation is + needed to +explain why +% help outline +% an important distinction between +a Hilbert style +deductive apparatus, such as $\,d_E\,$, $\,d_H\,$ + or $\,d_M\,$, should be distinguished from + $d_F$'s +``tableaux'' apparatus. +Let +% the symbols + $Add(x,y,z)$ and $Mult(x,y,z)$ +once again +% will +denote +two +3-way predicate symbols +specifying +that +$x+y=z$ and +$x*y=z$. +Also, let us recall +that +an +axiom basis + ``$\, \alpha \,$'' +is said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} if +%%%%%%%%% $\, \alpha \,$ +it +includes +\eq{totdefxs} - \eq{totdefxm} +as theorems. + +% {\small +{\vspace*{- 0.6 em} +{ +\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } +} + +\vspace*{- 1.4 em} + +\noindent +%Then an +In this context, an +``axiom basis'' +$\alpha$ +will be called +{\bf Type-M} if it contains +\eq{totdefxs}-\eq{totdefxm} +% \ref{totdefxs}-\ref{totdefxm} +as theorems, +{\bf Type-A} if it contains +%only +\eq{totdefxs} and \eq{totdefxa} as theorems, +and {\bf Type-S} if it contains +only \eq{totdefxs} as a + theorem. +%Moreover, +Also, +$\alpha$ +%will be +is +called +{\bf Type-NS} if it can prove +none of these theorems. +%In this context, +%The +%Items (a) and (b) illustrate +%%%Below are illustrated several +%%%implications of this notation: +The implications of this notation +are formalized by Items a and b: + +%% +%% +%% , below, +%% %will +%% illustrate how +%% a +%% %% +%% %% the +%% %% prior +%% %% literature has +%% %% +%% %% +%% ``Hilbert-style'' +%% deductive apparatus, such as $\,d_E\,$ +%% or $\,d_M\,$, supports very different generalizations +%% of the Second Incompleteness Theorem +%% than $\,d_F\,$'s +%% ``tableaux-style'' apparatus: +%% +%% the prior literature most germane +%% to our current article is summarized as follows: +%% +%% +%% The relationship of these constructs to +%% self-justification +%% is explained by +%% items (a) and (b): +\bed +\item[ a. ] +The +%% +%% above +%% evasions of the Second Incompleteness +%% Theorem are known to be near-maximal in a mathematical sense. +%% This is because +%% the +%% +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, +as formalized by statement $\, ++ \,$, +%has implied +implies +no +natural +Type-S system can recognize its +own consistency +under +any of $\, d_E \,$'s, $\, d_H \,$'s +or + $\, d_M \,$'s + Hilbert-style +versions +of deduction: +\begin{quote} +{\bf ++ } +\small +% \footnotesize + \baselineskip = 0.9 \normalbaselineskip +{\it +(Solovay's +modification +%Generalization +\cite{So94} +%1994 Generalization \cite{So94} +%of a 1985 theorem +of Pudl\'{a}k \cite{Pu85}'s formalism +with +%using +%some of +Nelson and Wilkie-Paris \cite{Ne86,WP87}'s +methods)} : +Let $ \, \alpha \, $ denote +%%! any consistent +% a logic +an axiom +basis +% axiom system +%basis system +%supporting +% which contains +able to prove +Line +\eq{totdefxs}'s +Type-S statement +and +assuring +%which assures +%that +the successor operation +%always +does satisfy +both +% the axioms of + $ \, x' \neq 0 $ and +the identity +$ x' = y' \Leftrightarrow x=y $. +$~$Then $~\alpha~$ +cannot verify its +%will be unable to recognize its +%own +consistency +under any Hilbert-style +%deductive +apparatus $d$, +%whenever +if it + treats addition and multiplication +as 3-way relations, +satisfying +the usual % identity, +associative, commutative + distributive +and identity axioms. +% -axiom +% properties. +\end{quote} +Essentially, Solovay \cite{So94} +privately communicated +to us +in 1994 +%to us +an analog of $++$'s result. +%but +Many authors +have noted Solovay + has +been +%often +reluctant to publish +% several of +his +nice +privately communicated +results +on many occasions +%in several contexts +\cite{BI95,HP91,Ne86,PD83,Pu85,WP87}. +Thus, +%polished +approximate analogs of +%statement + $++$ + were explored +subsequently +by +Buss-Ignjatovic, +H\'{a}jek +and +\v{S}vejdar in \cite{BI95,Ha7,Sv7}, +as well as in Appendix A of +our paper +\cite{ww1}. +Also, +Pudl\'{a}k's initial 1985 article \cite{Pu85} +% implicitly +did capture +essentially +the +{\it great majority} +%most +%%% much +of $++$'s +% main +% underlying +formalism, +and +Friedman did +related work +in +\cite{Fr79a}. + +\item[ b. ] +Part of what makes +% the Pudl\'{a}k-Solovay discovery in + $++$ interesting is that +\cite{ww93,ww1,ww5,wwapal} +%Willard +developed various +% separate +methods for +basis systems +%%% $\alpha$ +to confirm their own consistency, whose +main +further improvements are +prohibited by either the invariant $++$ +or by +\cite{ww2,ww7}'s hybridization of +$++$'s formalism with some further methods of + Adamowicz-Zbierski +\cite{AZ1}. (As a consequence of these facts, it is known +that +some +Type-A +and Type-NS +arithmetics can verify their +respective + semantic tableaux and + Hilbert-styled consistencies, +but +Type-S arithmetics cannot verify their Hilbert consistency and +most Type-M systems cannot verify their semantic tableaux +consistency.) + \ennd +\end{exx} + +% natural hybridizations is precluded by $++$. These results involve +% either a Type-NS +% % basis +% system +% +% verifying its own consistency +% under +% any of the +% $d_E$ or $d_H$ +% or $d_M$'s +% Hilbert-style methods, +% or a Type-A +% %basis +% system \cite{ww93,ww1,ww5,ww6,ww14} +% verifying +% its +% % own +% self-consistency +% under $d_F$'s tableaux +% %deductive +% apparatus. +% Also, Willard \cite{ww2,ww7} observed how one could +% refine $++$ with Adamowicz-Zbierski's +% methodology \cite{AZ1} to show +% Type-M systems +% cannot recognize their semantic tableaux consistency. +% \ennd +% \end{exx} + +\lvxs +\nvxs + + +% \tempvxs + + +%% A more detailed 15-page summary, +%% % of our prior research, +%% germane to +%% % the +%% Item (b), +%% % , above, +%% %can be found in our article +%% appears in +%% \cite{ww14}. + +% NNN NEED TO REWRITE NEXT TWO PARAGRAPHS + + +A full 15-page summary +% of our prior research, +of + Item (b)'s results +% , above, +%can be found in our article +can be found in + \cite{ww14}. +It does not need + to be read, +however, + as a prerequisite for understanding +the current paper. This is because our goal +%%% in the current paper +will be to explore axiom basis systems that can recognize their +own +Hilbert-styled +consistency, and the invariant $++$ indicates that each of the +classes of Type-S, Type-A and Type-M +arithmetics +are irrelevant to +this objective. +%our goals. + + +%% %% formalisms +%% own +%% % contain +%% excessive +%% growth properties that +%% lie outside +%% our goals. + +%this goal. + +%are incompatible with our goals. + +Instead, the \textsection \ref{seee3} will introduce a new +growth function symbol, called the ``$~\theta~$'' primitive, +that allows us to reside within the domain of a Type-NS arithmetic +because {\it none of the identities in +Lines + \eq{totdefxs}-\eq{totdefxm}} +will be provable consequences +of $\theta$'s speedy but unconventional growth properties. + +This $\theta$ primitive will be attractive because +Proposition \ref{th-3.3} +and Remark \ref{rem-def-3.4} will imply it supports +respective $O(~$Log$^3 \, n \,)$ and $O(~$Log$ \, n \,)$ +growth speeds for constructing arbitrary integers $~n$ +(depending on what linguistic notation one uses for encoding integers). +As a result, +%%% of this fact, +\textsection \ref{ss32} + will conjecture that +a seemingly minor ``IQFS'' modification of \cite{wwapal}'s +ISCE formalism is an arithmetic that possesses some interesting abilities +to confirm its own +% Hilbert-style +Hilbert +consistency. + +We might add that the discussion in this article will be +{\it entirely self-contained} +because + \textsection \ref{ss32} + will summarize \cite{wwapal}'s +definition of the ISCE formalism. + +\begin{deff} +\label{def-2.4} +\rm +Let +$~\alpha~$ again +denote an axiom basis +and $~d~$ +designate + a +deduction apparatus. +% +% During our discussion about the open questions +% raised by Hilbert's and +% G\"{o}del's +% statements +% $*$ and $**\,$, +% an +% % +% % Then the +% +In this context, an +ordered pair + $~( \alpha , d )$ +will +be called {\bf Self Justifying} when: +\begin{description} +% \xxitch +% \small + \item[ i ] one of $ \, \alpha \,$'s theorems +(or at least one of its axioms) +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +\end{deff} + + +\begin{exx} +\label{ex-2.5} + \baselineskip = 1.04 \normalbaselineskip +\rm +% Using +% Definition \ref{def-2.4}'s +% notation, our research +% +Our research +in +\cite{ww93,ww1,ww5,wwapal,ww9,ww14} +developed +%\cite{ww93}-\cite{ww14} +%has consisted of +% developing +ordered pairs $~( \alpha , d )$ +that +were +%are +``Self Justifying''. +It +% has +also explored +how the Second Incompleteness Theorem formalizes +limits beyond which such formalisms cannot transgress. +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +% second +%%% axiom +system $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +condition. +%of +% this definition. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +%%% +%%% the following +%%% %%% added +%%% further +%%% sentence, +%%% called +%%% %%% that we call +%%% {\bf SelfRef$(\alpha,d)~$}: +\begin{quote} +\small +% \baselineskip = 0.95 \normalbaselineskip +%\xxitch +$\oplus~~~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of +the + axiom system $\, \alpha \, $ +with {\it this} +sentence ``SelfRef$(\alpha,d) \,$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +discussed +how +to +encode +approximate + analogs of this +{\bf $\,$``SelfRef$(\alpha,d)$''$\,$} +statement. +%%% SelfRef$(\alpha,d)$'s +%%% self-referential statement. +Both Kleene and +Rogers \cite{Kl38,Ro67} +% +% Each of +% Kleene, +% Rogers and Jeroslow +% \cite{Kl38,Ro67,Je71} +% + noted +$\alpha ^d$ +may +% , however, +be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii of self-justification's +definition. +This is because if the +% ordered + pair $(\alpha,d)$ is too strong +then a classic G\"{o}del-style diagonalization argument can +be applied to the axiom system +$\alpha^d~~=~~ \alpha \, + \, $ SelfRef$(\alpha,d)$, +where the added presence of +% statement +SelfRef$(\alpha,d)$'s axiomatic statement +will cause +%% this extended version of +$\, \alpha^d\,$, ironically, + to + become automatically inconsistent. +Thus, the machinery of the sentence +``SelfRef$(\alpha,d)$'' is relatively easy to +encode, +%make well-defined +via an application of the Fixed Point Theorem, +but it +is +ironically +%%%%%{\it most often +{\it +typically +%usually +useless! } +\end{exx} + +%\newpage + + +Unlike our earlier work, which focused + mostly around a +semantic +tableaux apparatus for deduction, +the current paper +will +explore +%paper will explore +\dfx{def-2.2}'s +more pristine Hilbert-style methodologies. +%% +%% analogous to +%% Example +%% \ref{ex-2.1}'s +%% textbook +%% methods. +%% +% of +% $d_E$, $d_M$ +% and $d_H$. +%%! +%%! in +%%! the textbooks by +%%! Enderton, H\'{a}jek-Pudl\'{a}k, +%%! Mendelson and Papadamiriyou \cite{End,HP91,Mend,Papa}. +There are, of course, many types of generalizations +of the Second Incompleteness Theorem known to +arise in Hilbert-like settings +\cite{BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Lo55,Kr87,Kr95,Pa71,Pa72,Pu85,Pu96,So94,Sv7,Vi5,WP87,ww1,wwapal}. +Each such +generalization +formalizes +a paradigm where +self-justification is infeasible +under a Hilbert-style apparatus. + +\smallskip + +Our +main +prior research about +%%! +%%! main work about arithmetics displaying knowledge +%%! about their +%%! +Hilbert consistency appeared in \cite{wwapal}. +Its ISCE$(\beta)$ +system could recognize its +own +Hilbert consistency and +%%could +prove analogs of +the $\Pi_1$ theorems of +any +% r.e. +extension $~\beta$ of +Peano Arithmetic. +% 's $\Pi_1$ theorems. +It unfortunately required +% the +use of infinitely many +% number of +constant symbols, with + ISCE$(\beta)$ +using one built-in constant +% symbol +$C_i$ +for each power of 2. +(Such a series of constants seriously + deviated from +Hilbert's +intended + goals +in statement $*\,$, as +we will explain during +\textsection \ref{ss32}'s detailed review of +\cite{wwapal}'s results.) + + +% An alternative in \cite{wwapal}, +% called ISINF$(\beta)$, required use of only three constant symbols, +% but its proof lengths were impractically long. + + +%%! required +%%! % in excess of +%%! an impractical +%%! $O(N)$ length proof to construct an integer $N$. + +\smallskip + +Prior to \cite{wwapal}'s publication, +Pavel Pudl\'{a}k +\cite{Pupriv} +examined this article and asked +%us +% the crucial question about +whether +we could improve +upon ISCE +% 's properties + by using Ajtai's observations +\cite{Aj94} + about +the Pigeon Hole principle. +%% +%% Sam Buss \cite{Bupriv} also asked us +%% a +%% %similar +%% related +%% question +%% (during a more +%% informal +%% %abbreviated +%% conversation). +%% %(in a more informal manner). +%% +Our prior +partial +answer to Pudl\'{a}k's +question +was offered +%issue +%appeared +%in Sections 6 and 7 of \cite{wwapal}. +in Sections 6 of \cite{wwapal}. +A +% very +different type of reply will be offered +% +% We will offer +% % an alternate much +% a +% % much +% more sophisticated +% and different +% type of reply +% % analysis +% % formalism +% +in +the current +paper. +%article. + + +%%! an abbreviated version of a similar +%%! question after we verbally summarized to him \cite{wwapal}'s +%%! planned results. + +% in 1997. + + +\begin{deff} +\label{def-2.6} +\rm +Throughout our discussion, a +% A +primitive $~F~$ will be called a +{\bf Q-Function} +iff is is +sufficiently ambiguous +for there to exist an uncountably infinite set of +% different +distinct +{\it +plausible sequences} of +ordered pairs in expression \eq{wow} where +$~F(i)=a_i~$ is allowed as a +% logically +permissible +%plausible +%formalization +representation of $F$ +under some fixed axiom system $~\gamma~$. +\begin{equation} +\label{wow} + (0,a_0) + ~,~ (1,a_1) ~,~ (2,a_2) ~,~ (3,a_3) ~,~ (4,a_4)~ ... +\end{equation} +\end{deff} + +% \gvxs2 + +\vspace*{- 0.6 em} +%It turns out most + +% +% Most +% Q-Function symbols are +% unsuitable for +% analyzing +% %producing a positive resolution to +% Hilbert's Second Open Question or most +% issues in +% % other prominent +% % % mathematical +% % questions within +% mathematics. + +Most +Q-Function symbols are +awkward to employ. + This is because the +presence of an + uncountably + infinite + number of +different +plausible sequences, +formalized by Line +\eq{wow} for solving +$~F(i)=a_i~,~$ is +typically more of a burden than a benefit. +A +possible +%potential + exception to this general rule +of thumb + will be +provided by + the next +section's $~\theta~$ operator: It +% because it + will, +conveniently, + lie outside the scope of + $\, ++ \,$'s generalization of the Second Incompleteness +Theorem. +This fact will ultimately lead to our +main conjecture +about stronger variants of Type-NS logics +recognizing their own Hilbert consistency. + + + +% an enticing manner. + + +% It +% will +% % should +% provide an +% % enticing +% avenue for +% Type-NS axiom systems to recognize their own +% Hilbert consistency (if +% \textsection \ref{ss5}'s +% ``IQFS'' +% %anticipated +% conjecture is +% correct). + + +%% +%% and suggest a mechanism whereby an efficient form of +%% ``Type-NS''self-justifying +%% arithmetic +%% can recognize its own Hilbert consistency, +%% without +%% viewing +%% % recognizing +%% %%%%%% any of addition, multiplication and +%% even +%% successor as +%% a total function. + +%In other words, +% \smallskip + + +%% +%% +%% \medskip +%% Thus in a context where the partial drawbacks of +%% our +%% new $~\theta~$ primitive +%% will be beyond doubt, it will +%% % simultaneously +%% renew the +%% serious +%% question about whether a +%% {\it +%% part-way +%% 5-10 \% fragment} of +%% %positive} interpretation +%% %can be assigned to +%% Hilbert's and G\"{o}del's +%% goals in $*$ and $**$ +%% can be acheived. + + +%% +%% Our +%% suggestion +%% % conjecture +%% will be that +%% Q-functions +%% might +%% allow one to assign a +%% {\it +%% % part-way +%% 5-10 \% +%% positive} interpretation +%% for what +%% Hilbert and G\"{o}del +%% were +%% seeking +%% %referring to +%% % a Consistency Program +%% % to establish +%% %% seeking to accomplish +%% % contemplating +%% in their +%% famous +%% %often quoted +%% statements +%% $*$ and $**$. +%% + +%% +%% It will enable us to develop ground terms for formulating +%% any integer $~N~$ using +%% $O\{~$Log$(N)~\}~$ +%% logical symbols, +%% in a context where +%% {\it none of the} addition, multiplication or +%% successor function symbols are employed +%% by $~\theta \,$'s analog of an +%% $O\{~$Log$(N)~\}~$ +%% lengthed +%% binary-like +%% encoding +%% for integers. +%% % of an integer as a binary number. +%% This alternate +%% $O\{~$Log$(N)~\}~$ +%% format +%% for encoding an integer $~N~$ is +%% potneitlally useful +%% %fascinating +%% because +%% Item $\, ++ \,$'s generalization of the Second Incompleteness +%% Theorem, due to the +%% combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +%% \cite{Ne86,Pu85,So94,WP87}, +%% does not preclude evasions of its invariant when a +%% ``Type-NS'' +%% axiom system ceases to recognize +%% addition, multiplication and +%% successor as total functions. + + + +% Most +% Q-Function symbols are +% unsuitable for +% analyzing +% %producing a positive resolution to +% Hilbert's Second Open Question. +% A special class of Q-Functions +% % , however, +% will +% walk through +% Cantor's +% % the +% world of the Uncountably Infinite +% %% in a more +% in an +% enticing manner, +% however. +% %% however. +% %It +% They +% will suggest a +% %%% much +% {\it diluted but non-trivial} +% variant +% of the aspirations +% which +% %that +% Hilbert and G\"{o}del +% expressed +% in +% $*$ and $**$ +% are +% %applicable to +% feasible under +% % plausible in the context of +% Hilbert Deduction. +% (This +% % Q-function a +% analysis will be +% %%%%%%%%%%%%%% quite +% % entirely +% different +% from +% \cite{ww14}'s +% examination of +% %formalisms +% %the formalisms appearing in our Wollic-2014 paper +% %%% because +% %it will replace +% semantic tableaux deduction +% because it will +% apply +% uniquely +% to +% Definition \ref{def-2.2}'s +% ``Hilbert-styled'' deduction methods.) + + +%%% is replaced by the more efficient +%%% %with the more pristine +%%% Hilbert-style deductive methodology.) + +%can be achieved. + + +%%! This will suggest +%%! a {\it limited} +%%! and very-much {\it down-sized} version of the formalism that +%%! Hilbert +%%! advocated +%%! is +%%! likely +%%! %probably +%%! feasible +%%! and +%%! germane to +%%! the +%%! future +%%! % computational +%%! needs of automated +%%! theorem provers. +%%! Our +%%! exploration +%%! will also provide a +%%! % quite +%%! new interpretation of the +%%! meaning of the statements $*$, $**$ and +%%! $***$. + +% by Hilbert and G\"{o}del. + + + +% \section{Revisiting a World which Hilbert called +% {\it ``Cantor's Paradise''}} + +%\section{Main Formalism} + +% \section{Deploying a New ``$~\theta~$'' Primitive} + +% \vspace*{- 0.9 em} + + + +%\section{Need for a New ``$~\theta~$'' Primitive} + + +%\section{Mysterious New ``$~\theta~$'' Primitive} + + +% \section{The Surprisingly Useful ``$~\theta~$'' Primitive} + +%\section{The ``$~\theta~$'' Primitive and Its Potential Uses} + +\vspace*{- 0.5 em} +\section{Arithmetic Under The ``$~\theta~$'' Primitive} +\label{ss4} +\label{seee3} + +%333333333333333333333333333 + +\vspace*{- 0.5 em} + +%\vspace*{- 0.9 em} + + +% OLD Title was {\it Notation and Basic Concepts} + +% Throughout this +% paper, +% %article, +% % a + +A function + $\, H \, $ +will be called +a + {\bf Non-Growth} operation +iff +$ H(a_1,a_2,...a_j) +\leq Maximum(a_1,a_2,...a_j)$ +for all $a_1,a_2,...a_j$. Six examples of + non-growth functions are: +\bee +%\small +\footnotesize +\parskip - 3pt + \baselineskip = 0.6 \normalbaselineskip +\item +{\it Integer Subtraction} +where ``$~x-y~$'' is defined to equal zero +in {the special case} where + $~x \leq y,$ +\item +{\it Integer +Division} +where ``$~x \div y~$'' equals +$~x~$ when $~y=0~$ and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise, +\item +$Root(x,y)~$ which equals $~ \lfloor ~x^{1/y}~ \rfloor$ when $~y\geq 1~$ +%% +%% and +%% it equals $~x~$ when $~y=0.$ +%% +(and zero otherwise), +\item +$Maximum(x,y),~~$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +and +\item +$Count(x,j)~~=~~$the number of ``1'' bits +among $~x$'s rightmost $~j~$ bits. +\ene +%% +%% +%% \bee +%% \baselineskip = 0.8 \normalbaselineskip +%% +%% \item +%% {\it Integer Subtraction} +%% where ``$~x-y~$'' is defined to equal zero +%% in {\it the special case} where +%% $~x \leq y,$ +%% \item +%% {\it Integer +%% Division} +%% where ``$~x \div y~$'' equals +%% $~x~$ when $~y=0,~$ and +%% it equals $~\lfloor ~x/y ~\rfloor~$ otherwise, +%% \item +%% $Root(x,y)~$ which equals $~ \ulcorner ~x^{1/y}~ \urcorner$ when $~y\geq 1,~$ +%% and +%% it equals $~x~$ when $~y=0.$ +%% \item +%% $Maximum(x,y),~~$ +%% \item +%% $ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ when $~x \geq 2,~$ +%% and zero otherwise. +%% \item +%% $Count(x,j)~~=~~$the number of ``1'' bits +%% among $~x$'s rightmost $~j~$ bits. +%% \end{enumerate} +%% +These operations were called +either the +{\bf ``Grounding''} +or {\bf ``Ground-Level''} + functions +in our articles \cite{ww1,ww5,ww14}. +% We will use the +We will rely upon the +% The +latter nomenclature in the current article + because the notion of a ``Ground-Level'' +function should not be confused with the +% very +quite +different notion +of a ``Grounded Term'' (employed by Definition +\ref{def-3.4}). + +% TWO DEFS or ONE ???????? + + + +Our +starting language $L^G$ +will +% shall +also contain +the +two atomic +symbols +%% relations +of ``$~=~$'' and ``$~\leq~$'' and three +built in constants symbols, $~C_0~$, $~C_1~$ and $~C_2~$, +for representing +the values of 0, 1 and 2. +Within this context, + Expressions +% Lines +\eq{newadd} and \eq{newmult} formalize how addition and multiplication +can be encoded as two 3-way predicates, +%% in $L^G$, + denoted as +Add$(x,y,z)$ and Mult$(x,y,z)$. +% +% (Their +% % unusual +% particular +% definitions +% are +% % quite +% %highly +% useful because they +% allow our ``Type-NS'' arithmetic to evade +% satisfying +% % Lines +% \eq{totdefxs}-\eq{totdefxm}'s +% forbidden +% function-existence +% conditions.) +% +%%%%undesirable constraints.) +% +% they do not imply addition +% and multiplication are total functions (e.g. +% they permit our arithmetic to be a +% ``Type NS system''.) +% +% further conditions.) +% +% (These +% definitions +% % for Add$(x,y,z)$ and Mult$(x,y,z)$ +% {\bf notably allow} a +% %two 3-way predicates are consistent with a +% ``Type NS system'' to +% {\it evade satisfying} Lines \eq{totdefxs}-\eq{totdefxm} +% {\it forbidden} +% constraints.) +% % further conditions.) + +\newpage +%bbbbbb +{ \small +\vspace*{- 1.2 em} +\beq +\label{newadd} +z ~ -~x~~=~~ y~~~~ \wedge ~~~~ z~\geq~x +\end{equation} + +\vspace*{- 1.2 em} +\begin{equation} +\label{newmult} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x}\, k~$ +and +also +% simultaneously +having +each $ \, a_i \leq k$ \, +It will be necessary +%% for us +to employ + either an infinite number +of constant symbols or some Growth-Permitting function +so that an extension of the +language $L^G$ can construct the +full +%infinite +collection of + integers of $~3,4,5,6~....~$. + + + + +%% One awkward aspect of this notation is that +%% it provides +%% no guarantee +%% that integers larger than 2 will exist without the +%% presence of some +%% further +%% methodology for producing larger integers. + + +% +\smallskip + + +One method for resolving this problem was presented in \cite{wwapal}. +% +% It employed an infinite number of further constant symbols. The +% latter's +% ISCE$(\beta)$ +% system was +% % shown to be +% compatible with self-justification, +% but such an infinite number of constant symbols clearly trespassed on +% Hilbert's goal of using a +% %strictly +% finite-sized formalism. +% +Its ISCE$(\beta)$ axiom basis +deployed an infinite number of +% further +distinct +constant symbols. It +was +compatible with self-justification, +but deviated from +%{\it very sharply from} +Hilbert's +intended + goals +because it employed +% by employing +%an +a {\it highly awkward} +infinite number of +distinct + constant symbols. +(The reader will +better +appreciate this point when +\textsection \ref{ss32} +reviews +% the +% properties of +ISCE's defining formalism. +This difficulty is fundamental +% to avoid +because +the Invariant $++$'s generalization of the +Second Incompleteness Theorem indicates that +Type-S arithmetics are unable to confirm their +own Hilbert consistency.) + + + +\medskip + + + +%% The +%% % self-justifying +%% ``ISINF'' formalism +%% % in +%% of +%% \cite{wwapal} +%% offered an alternate method for resolving this difficulty. +%% %% in the context of a self-justifying logic. +%% It +%% % required the use of +%% used +%% {\it only +%% three} constant symbols. It could prove analogs of all +%% of Peano Arithmetic's +%% $\Pi_1$ theorems, but almost all +%% of +%% its proofs +%% unfortunately +%% had lengths longer +%% than the number of atoms in the universe. +%% Most other approaches, for resolving this dilemma, +%% % are +%% were +%% also problematic +%% because +%% Example \ref{ex-2.3}'s +%% invariant +%% $~++~$ +%% % +%% % which Example \ref{ex-2.3} +%% % attributed to the joint work of +%% % Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris, +%% % +%% showed that essentially every Type-S arithmetic is unable to +%% recognize its +%% own consistency under a Hilbert-style deductive apparatus. +%% +%\smallskip + + +% The challenge posed by $++$ +% is, thus, +% substantial. +% % certainly formidable. + +Our goal in +%the current +this +article +will be to suggest +how +%that +a Q-function primitive $F(x)$, +that has +% an extraordinarily +a deliberately +ambiguous + function definition, +can help overcome the constraints that $++$ imposes. +Such an +% ultra-ambiguous defined +unusual +primitive $~F~$ will have +an uncountable number +of vectors, analogous to Line \eq{wow}, that are permitted +solutions to +$F$'s +definition. +Our basic goal +% in this article +will be to outline +how this unusual concept is +likely germane to the +self-justifying +axiom system satisfying +{\it a very diluted} but not +immaterial subset of +%% +%% why it is +%% likely such Q-functions will enable one to build +%% surprisingly efficient self-justifying logics that +%% partially (but not fully) achieve the +%% %{\it diluted portion} of the +%% +%aspirations +%that +Hilbert's and G\"{o}del's goals in +%expressed in +statements +$*$ and +$**~$. + +\smallskip + +%\normalsize \baselineskip = 0.98 \normalbaselineskip +%\gvxs + + +%% \el{wow}'s +%% dizzying +%% $\aleph_1$ distinct solutions. +%% We will traverse in the opposite direction in this article +%% because +%% Definition \ref{def-2.6} +%% %\eq{wow} +%% formalizes +%% % fascinating +%% % a possible +%% an +%% avenue +%% available +%% for evading $++$'s generalization of the +%% %Second +%% Incompleteness +%% Theorem. + +% {\it in at least a partial sense.} + + +%% +%% %They +%% This level of multiplicity will be +%% %These will turn out to be +%% useful in the present setting +%% because +%% %% +%% %% Our hypothesis is that such +%% %% solutions, while awkward and disadvantageous +%% %% in many +%% %% evident +%% %% %%%%%obvious +%% %% respects, +%% %% should not be discarded. +%% %% This is +%% %% because +%% %% +%% it +%% can +%% formalize a type of +%% allowed +%% growth-permitting function, +%% that is +%% not prohibited by $++$'s generalization of the Second Incompleteness +%% Theorem. +%% +%% + +%\smallskip + +\begin{deff} +\label{def-3.1} +\rm +Let us say +% an integer-valued +a function symbol +$F(x_1,x_2,...x_j)$ is {\bf `` 1-Definitive ''} iff it has only one +solution under its definition by an axiom system $\gamma$. +Let us call $~F~$ {\bf ``Indeterminate''} otherwise. +%(The remainder of this article +(Mathematicians +obviously typically avoid using +function definitions +%%%%%%%%%, $~F~$ +with +%that have +%%%% having +even two solutions, not to +speak of +what will be +\el{wow}'s +surprising +%dizzying +quantity +of +%potential +%possible +%% possibly $\aleph_1$ distinct + potentially infinitely many distinct +% number of +solutions. +This is +because such objects are typically more of a burden than a benefit. +Our conjecture +% , in this paper, +will be that a special new +Indeterminate function, called ``$~\theta~$'', will +be different and +offer +% an +%%%a surprisingly +%%% efficient means to eschew $++$'s prohibitions.) +a +%surprisingly efficient +means to eschew $++$'s +%prohibitions.) +prohibitions with pleasing levels of +% quantitative +efficency.) +% efficency.) + + +\end{deff} + + +% considered in the current article. +% Our +% % main +% conjecture will be that this unconventional +% approach is +% germane to the challenge posed +% by $++$'s +% % +% % broad-scale +% generalization of the +% %Second +% Incompleteness +% Theorem +% % +% %This is because our conjecture will be that +% % +% because the new +% proposed $~\theta~$ +% primitive +% will represent +% an efficient Indeterminate +% function +% that eschews $++$'s prohibitions.) +% \end{deff} + +% helpful when addressing +% the challenge +% We will traverse in +% an unconventional +% % the opposite +% direction in this article +% because +% our conjecture will be that +% Indeterminate functions +% with $\aleph_1$ different +% allowed solutions for +% \el{wow} +% formalize +% %% +% %% Definition \ref{def-3.1} +% %% % {def-2.6} +% %% %\eq{wow} +% %% will formalize +% %% a +% %% possible +% %% %feasible +% %% %plausible +% %% +% an +% avenue +% % available +% for evading $++$'s +% broad-scale +% generalization of the +% %Second +% Incompleteness +% Theorem.) +% +% (Our conjecture in this article will be that +% %% +% %%The next two sections +% %%will explore +% %%how +% %% +% \el{wow}'s indeterminate ``Q-Function'' symbol $F$ +% %%%can clarify +% is germane to +% the +% aspirations +% that +% Hilbert and G\"{o}del +% % expressed +% stated +% in +% % statements +% $*$ and +% $** \, $, $\,$when +% one employs an +% operator +% $ \, F \, $ +% that +% owns +% % has +% $\aleph_1$ distinct +% available +% solutions). +% \end{deff} + + +%%are viable, +%%especially in an automated theorem proving setting, +%%when Ambiguous function operatives are judiciously +%%employed. +%% + +%%! +%%! can +%%! %%and germane about automated +%%! %%deduction, will +%%! % theorem proving, +%%! %computational deduction, +%%! be satisfied by a self-justifying logic that employs +%%! one +%%! %single $\aleph_1$ +%%! Growth-Permitting function $F(x)$, +%%! that is +%%! % inherently +%%! ``ambiguous'', +%%! {\it accompanied +%%! by} a finite number of non-growth primitives +%%! % {\it non-growth} +%%! $G_1,~G_1,~... G_k$ +%%! that are ``unambiguous''. +%%! +%%! It will also be explained how such results should have useful +%%! applications for automated theorem proving, even when they +%%! employ +%%! only +%%! diluted forms of self-justifying logics. + +%% +%% \vspace*{- 1.0 em} +%% +%% \subsection{Main Notation Conventions} +%% % about Cantor's Paradise} +%% % \large +%% % \baselineskip = 1.8 \normalbaselineskip +%% +%% %\vspace*{- 0.7 em} + +%\gvxs + +{\bf More Notation:} +$~$Let us say +an axiom system $~\alpha~$ +has +{\bf Infinite Far Reach} iff +it relies upon +{\it only a finite number} of +axioms to +% distinct constant symbols +% (and/or axiom sentences) to +prove +for each $n$ +the +\el{farreach}'s invariant. + +%for each particular integer $n$. + +\vspace*{- 0.8 em} + +\beq +%% \small +\label{farreach} +\exists ~~x~~~ \mbox{Pred}^n(x)~\geq ~1 +\enq + +%\newpage + + +\nvxs + +\noindent +The ``ISINF'' axiomatic framework +from + \cite{wwapal} +was + a self-justifying +system with Infinite Far Reach. +%% +%% The opening paragraph of +%% \cite{wwapal}'s Section 6 +%% %%% quite +%% %was frank +%% warned the reader +%% about ISINF's limitations. +%% These arose because +%% +%% +%% It +%% used the word ``unnatural'' to describe +%% the ISINF system. +%% Such caution +%% % deliberately +%% % self-deprecating term +%% was appropriate because +%% +Unfortunately, this result was mostly useless because +nearly all + theorem-proofs +%of trivial theorems0000000 +from ISINF +were +longer than the number of atoms in the universe. + +\newpage +\parskip 0pt + +The reason +\cite{wwapal} defined ISINF, +%ISINF was worthy of mention, +despite +its evident impractical characteristics, +% +% such +% %%% these +% % plainly +% %%% obvious +% limitations, +% +was +because +ISINF +demonstrated some +unusual + self-justifying logics, +knowledgeable about their own Hilbert consistency, +were +{\it technically} +able to +prove all of Peano Arithmetic's $\Pi_1$ theorems +together with the +existence of +the infinite set of integers $ \, 1,2,3,... \, \, $. +This result +% is interesting because it casts +did cast +% casts +a +new +perspective +%light +on $\,++\,$'s +invariant +% $++$ (appearing on \pag2) +by showing how +{\it some unusual} +Type-NS +forms of self-justifying arithmetics +did +escape $++$'s almost-ubiquitous + reach +by managing to possess infinite far reach + without taking +% {\it without recognizing} +Successor as a total function. + + +%% of the current article. +%% The latter result indicated that Type-S arithmetics, recognizing merely +%% Successor as a total function, are unable to confirm their own +%% Hilbert consistency. +%% Yet, +%% %% despite this fact, +%% ISINF was able to produce an +%% {\it eye-squinting} caveat because it +%% supported the above ``Infinite Far Reach'' property +%% without +%% needing +%% %being able to prove +%% Line +%% \eq{totdefxs}'s declaration that successor is a total function. + +%\smallskip + +We sent an advanced copy of \cite{wwapal} +to +Pudl\'{a}k. +He +appreciated the nature of the challenge we faced. +% +% , +% concerning the delicate nature of self-justifying +% arithmetics that are +% able to prove +% % satisfy +% \eq{farreach}'s invariant +% {\it for each fixed $~n~$} while +% being prohibited +% by $++$ +% from +% recognizing successor as a total +% function. +% % (due to $++$'s restrictions). +% +% +Pudl\'{a}k's +subsequent +%private +%His +emailed communications +\cite{Pupriv} +suggested +that we look at +Ajtai's +work +\cite{Aj94} +about a +%the +Pigeon-Hole function + $~ \glamb(x)~$ defined by the identities +\eq{zm1} and \eq{zm2}. + +% \newpage +\vspace*{- 1.2 em} +\beq +%% \small +\label{zm1} +\forall ~~x~~~~~ \glamb(x)~ \neq ~ 0 +\enq + +\vspace*{- 1.2 em} + +\beq +\label{zm2} +%% \small +\forall ~~x~~~ \forall ~~y~~~~ x ~ \neq~ y ~~ \Rightarrow ~~ +\glamb(x)~ \neq ~\glamb(y) +\enq +The relevance of +$~\glamb~$ +% Pigeon-Hole functions +can be +best +%readily +appreciated +% if +when +%we let +$~\glamb^n(x)~$ + denotes +% the +a +term + $~\glamb(~\glamb(~ ... \glamb(x)))~$ +consisting of $~n~$ iterations of the $~\glamb~$ operator. +Then the below +% the +%%% \el{DUMB1}'s composite +term $~S_n~$ +% , defined below, shall +will +% then +satisfy +Pred$^n(~S_n~)~\geq ~1.~$ +%% +%% An axiom system, employing the primitive +%% operation +%% $~ \glamb~,~$ +%% can thus +%% can easily +%% prove +%% Line \eq{farreach}'s +%% assertion. +%% %claim. +%% %under almost all conventional logics. +%% +%% +\beq +% \vspace*{- 0.5 em} +\label{DUMB1} +S_n~~~=~~~\mbox{Max}[~\glamb(0)~,~\glamb^2(0)~,~\glamb^3(0)~,~...~~\glamb^n(0)~] +\enq +Pudl\'{a}k +observed +that +%the +% Pigeon-Hole function + $~ \glamb(x)~$ +will +grow too slowly +(under well-defined non-standard models) +% (in the worst case) +for +one to be able to +deduce +successor is a total function +from its properties. +%% +%% % further observed that it is known +%% \footnote{ +%% \tiny +%% \baselineskip = 0.94 \normalbaselineskip +%% The operation $\glamb(x)$ will grow +%% at a slower rate than Successor, +%% if it equals $x+1$ for all standard +%% numbers $~x~$ and if $\glamb(x)=x-1$ +%% when $~x~$ is +%% a non-standard integer. This seemingly minute detail +%% implies one cannot infer +%% Successor is a total function from +%% $\glamb$'s behavior.}. +%% +%% +%% +%% since the latter is contradicted by a +%% model where +%% all non-standard +%% numbers have +%% %their +%% sizes bounded by some fixed +%% % non-standard +%% number B. +%% (This +%% subtle +%% %detail, +%% raised by +%% Pudl\'{a}k's email \cite{Pupriv}, was fascinating because +%% it +%% %shows that +%% raised the question about whether +%% a partial exception to +%% Example \ref{ex-2.3}'s +%% invariant $++$ +%% %% on \pag2, +%% might plausibly exist.) }. +%% +%% +%% thus, +%% suggests the +%% Pudl\'{a}k-Solovay +%% version of the Second Incompleteness +%% Theorem (stated on \pag2) +%% might +%% %%%%%should +%% allow for +%% potential +%% exceptions +%% to it +%% arising from the +%% %delicate +%% formal +%% behaviour of +%% some +%% %% +%% %% presence of +%% %% %some +%% %% these permissible +%% %% +%% %% +%% non-standard +%% variants of +%% % interpretations for +%% the Pigeon-Hole function $\glamb$. }. +%% +%% +%that +%prove +%%% +%%% +%%% +%%% (in the worst case) +%%% for +%%% one to be able to +%%% deduce +%%% successor is a total function +%%% from its properties +%%% % further observed that it is known +%%% \footnote{ +%%% \tiny +%%% \baselineskip = 0.94 \normalbaselineskip +%%% The operation $\glamb(x)$ will grow +%%% at a slower rate than Successor, +%%% if it equals $x+1$ for all standard +%%% numbers $~x~$ and if $\glamb(x)=x-1$ +%%% when $~x~$ is +%%% a non-standard integer. This seemingly minute detail +%%% implies one cannot infer +%%% Successor is a total function from +%%% $\glamb$'s behavior.}. +%% +%% +%% since the latter is contradicted by a +%% model where +%% all non-standard +%% numbers have +%% %their +%% sizes bounded by some fixed +%% % non-standard +%% number B. +%% (This +%% subtle +%% %detail, +%% raised by +%% Pudl\'{a}k's email \cite{Pupriv}, was fascinating because +%% it +%% %shows that +%% raised the question about whether +%% a partial exception to +%% Example \ref{ex-2.3}'s +%% invariant $++$ +%% %% on \pag2, +%% might plausibly exist.) }. +%% +%% +%% thus, +%% suggests the +%% Pudl\'{a}k-Solovay +%% version of the Second Incompleteness +%% Theorem (stated on \pag2) +%% might +%% %%%%%should +%% allow for +%% potential +%% exceptions +%% to it +%% arising from the +%% %delicate +%% formal +%% behaviour of +%% some +%% %% +%% %% presence of +%% %% %some +%% %% these permissible +%% %% +%% %% +%% non-standard +%% variants of +%% % interpretations for +%% the Pigeon-Hole function $\glamb$. }. +%% +%% +%that +%prove +His insightful email \cite{Pupriv} asked +whether +the inequality +Pred$^n(~S_n~)~\geq ~1~$ +might +%would, +thus, +% still +enable a formalism, +% based around +utilizing the + $\, \glamb \,$ operative, +to +somehow +improve upon \cite{wwapal}'s results ? + + +% our +% formalisms could be +% revised +% %modified +% so that +% % the Pigeon-Hole function +% $~ \glamb(x)~$ +% could improve upon \cite{wwapal}'s results. + +%% +%%(possibly using Ajtai's methodologies \cite{Aj-focs}). +%%Sam Buss raised, interestingly, a +%%partially +%%similar +%%issue during an informal conversation +%% \cite{Bu-priv} in 1977. +%% +%%\smallskip +%% +%%These questions +%%% by +%%%Pudl\'{a}k and Buss +%%were insightful because they isolated +%%an +%%important juncture where $++$'s underlying methodology does not apply. +%%A partial answer to these questions appeared in +%%\cite{wwapal}'s closing section, but a more comprehensive full +%%answer has always eluded us. + +%This is because there always seemed to appear +%one wrinkle of details that precluded a full proof. + + +\smallskip + + +It was +initially + unclear +%%%%% to us +whether a positive answer to +Pudl\'{a}k's + probing + question would resolve ISINF's main difficulties. +This is +because +% Expression +\eq{DUMB1}'s +term +$~S_n~$ requires $O(~n^2~)$ logic symbols to encode +% essentially +an integer quantity +greater than + $~n~$ +(since its term +$~\glamb^j(0)~$ uses $O(j)$ logic symbols). +%an integer quantity that exceeds the quantity $~n~$ in size. +Thus once again, the quantity $~2^{100}~,~$ whose binary encoding +requires 100 bits, would require in excess of + $~2^{100}~$ bits to encode. +Such large quantities are obviously undesirable. + + +% Such impractical quantities are obviously distant +% from what is desired. + + +% Such quantities, exceeding the number of atoms in the universe, +% were troubling because our +% general +% goal has been to +% construct self-justifying arithmetics +% with pragmatic features. + + +%% that +%% possessed, at least, +%% some +%% partial facets of +%% pragmatic value. + + +% +% find a partial +% answer to Hilbert's +% Year-1900 Second +% Problem +% that would +% possess, at least, +% some +% partial facets of +% pragmatic value. +% + +\medskip +\nvxs + +The remainder of this section will outline how a different type of +Q-Function operator will +be +% much +better than + $~ \glamb~$ for meeting our needs. +During our discussion, +Power$(x)$ will denote +a primitive specifying +% that + $~x~$ is +a power of +$~2~$. +Its formal encoding +in $L^G\,$'s language + is illustrated by \eq{wep2}. +%% +%% It is +%% %formally +%% encoded +%% by +%% \eq{wep2} +%% because +%% %under +%% our Grounding language +%% has +%% ``Logarithm$(x) \,$''$ ~ = ~ \lfloor \,$Log$_2(x) \, \rfloor \,$. +\beq +\vspace*{- 0.6 em} +\label{wep2} +%\small +x=1 ~~~\vee ~~~ \mbox{Logarithm}(~x~)~\neq~\mbox{Logarithm}(~x-1~) +\enq +In this context, + $\zzthe(x)$ +will denote the analog of +the $\glamb(x)$ function +%% haphazard +that walks among the powers of 2 in a manner +similar to +$\glamb(x)$'s +% haphazard + walk through conventional +integers. +It is +% formally +defined by \eq{walk1}-\eq{walk4}. +% +% It will thus satisfy +% the axiomatic constraints below (which are +% $\zzthe(x)$'s analog of the more modest constraints given in +% % sentences +% \eq{zm1} and \eq{zm2}). +% The most important difference between these two constructs +% is that axiom \eq{walk1} requires that +% $\zzthe(x)$ maps power of 2 onto powers of 2. + +{ +%\small + +\vspace*{- 0.6 em} +{\parskip -6 pt +\beq +\label{walk1} +\forall ~~x~~~~~ \mbox{Power}(x) ~~~ \Rightarrow ~~ +\mbox{Power}(~ \zzthe(x)~) +\enq +\beq +\label{walk2} +\forall ~~x~~~~~ \zzthe(x)~ \neq ~ 1 +\enq +\beq +\label{walk3} +\forall ~~x~~~ \forall ~~y ~~~~[~ x ~ \neq~ y ~ +\wedge ~\mbox{Power}(x)~] + \Rightarrow ~~ +\zzthe(x)~ \neq ~\zzthe(y) +\enq +\beq +\label{walk4} +\forall ~~x~~~~~ \neg ~ ~\mbox{Power}(x)~~~~ \Rightarrow ~~~~ +\zzthe(x)~=~0 +\enq} } + +\vspace*{- 1.2 em} +\noindent +{\it It needs to be emphasized} that + \eq{walk1} -- \eq{walk4} will be the +{\it only vehicle} our +proposed formalisms will +%self-justifying axioms +%will +have available to construct +integers $\geq \, 3$. $~$These +axioms will be called +%They will be henceforth called +the {\bf $~$Up-Walking$~$} axioms. +(The axiom \eq{walk4} +is +% does not, +%% , technically, +unnecessary + to construct any +integer $\geq \, 1\, $, but it is helpful +for +% because +% it +% % allows us to +% formalizes +formalizing +how our methodology will treat integers +which are not powers of 2.) + +% \gvxs +% \svxs + +\smallskip + + +Both +$\glamb$ + and $\zzthe$ are +% unusual +% complicated +% entities +Q-functions +%because they +that +own +% potentially + infinitely many distinct +% $\aleph_1$ +% distinct +vectors, +%analogous +similar +to + Line \eq{wow}, +for representing them. +We will soon see +their +underlying +% computational + complexities +% properties +are +%sharply +%quite +surprisingly +different. + + +%% +%% they have sharply +%% contrasting +%% %%very +%% %sharply +%% %% different +%% computational +%% % complexity +%% properties. +%% + +%% Both +%% the +%% Q-functions +%% % the operators +%% $\glamb$ +%% and $\zzthe$ are +%% %awkward +%% challenging +%% to analyze +%% %challenging +%% %daunting +%% because there are +%% % a +%% % dizzying +%% $\aleph_1$ distinct +%% vectors, analogous to +%% Line \eq{wow}, +%% that are +%% %where their definitions permits +%% representations of these functions. +%% %% +%% %% Also, we may combine either operation with our +%% %% language $L^G$'s grounding function-primitives to formulate a term +%% %% $~T_n~$ that defines any arbitrary integer $~n~$. +%% %% +%% We will soon see that +%% there is, however, a +%% distinction +%% % major difference +%% between these +%% two concepts +%% from a +%% % computational +%% complexity perspective. + +\begin{definition} +\label{defx-3.2} +\rm +Let $~L^Q~$ +and $~L^{Q^*}~$ +denote the +extensions +of $~L^G\,$'s Grounding language that contain the +respective +additional +function symbols of + $\zzthe$ + and +$\glamb$. Then +$~~L^Q~$ shall be called the {\bf Q-Grounding} language, and + $~~L^{Q^*}~$ +will be called the {\bf Q* Grounding} language. +\end{definition} + +\begin{propp} +\label{th-3.3} +In contrast to the +Q* Grounding language +that requires $O(~n^2~)$ function symbols +for defining a term $~T^*_n~$ for representing the integer +$~n,~$ the Q-Grounding language +%% will need no more than +needs +% uses +only +$O(~$Log$^{ \, 3\,} \,n~)$ symbols to +encode +%formalize +a term +$~T_n~$ representing +$~n$. +\end{propp} + +\vspace*{- 1.0 em} + +\begin{center} +% \small +% Our proof of \phx{th-3.3} +\phx{th-3.3}'s +proof +will rely upon the following notation convention: +\end{center} + +\vspace*{- 0.8 em} + +\begin{definition} +\label{def-3.3} +\rm +Let + $~\zzthe^j(x)~$ +denote the term + $~\zzthe(~\zzthe(~ ... \zzthe(x)))~$ +where there are +$~j~$ iterations of the + $~\zzthe~$ operation. +% Throughout this article, +Then +%for any $~j \, \geq 1~,~$ +%the symbol +$~E_j~$ +will +% shall +% will +denote +the quantity produced by +\eq{ej-def}'s division operation: + +\vspace*{- 0.6 em} + +\beq +\small +\label{ej-def} + \frac{~\mbox{Max} +~[~\zzthe^{\, j \,}(1)~,~~\zzthe^{\, j-1 \, }(1)~,~... ~\zzthe(1)~~] } +{~~\mbox{Half}^{\,j\,} ~ \{ ~\mbox{Max}~[ + ~\zzthe^{\, j \,}(1)~,~~\zzthe^{\, j-1 \, }(1)~,~... ~\zzthe(1)~]~ + ~ \}~~ } +% +% \mbox{Max}(~\zzthe^j(1),~\zzthe^{j-1}(1),~... ~\zzthe^1(1)~ +\enq +It is each to see +$ E_j = 2^j $ for every +$j \geq 1$. +This is + because \el{ej-def}'s +twice-repeating + term +% object of +``$\, \mbox{Max} +~[~\zzthe^j(1), \zzthe^{j-1}(1),...\zzthe(1) \,]\,$'' +% is at least as large as $\, 2^j\,$. +is a power of 2 exceeding $\, 2^j\,$. +%% +%% The definitions of the +%% % Q-Grounding +%% functions of ``Half'', ``Max'' and +%% ``$~\zzthe~$'' imply +%% $~E_j~=~2^j~$ for each +%% $j \, \geq 1$. +%% +For the additional case where $~j=0~,~$ +we will +% formally +define $~E_0~=~1~$ (by +using the +%% +%%setting it equal to +%%our +%%%the +%% +built-in constant symbol +of $~C_1~$). +\end{definition} + +%% , which +%% is intended to +%% %formally +%% represent the integer of ``1''). + + + +{\bf Proof of \phx{th-3.3}:} +%The justification of \phx{th-3.3} is an +Easy consequence of +\dfx{def-3.3}'s machinery. Thus if $~n~$ is a power of +2 of the form $~2^j~$ then +% the preceding +% definition's +expression $~E_j~$ is a term representing $~n \,$'s value +that employs + $O(~$Log$^{ \, 2\,} \,n~)$ +logical +symbols. On the other hand, if + $~n~$ is not a power of +2 then it can be defined +with $O(~$Log$^{ \, 3\,} \,n~)$ symbols by +setting +$~E_j~$ equal to the least power of 2 greater than $~n~$ and +subtracting from $~E_j~$ those powers of 2 that are needed to +produce $\,n\,$'s value. +For example since $76~=~128~-~32~-~16~-~4~,\,$ it can +be formalized as a term $T_{76}$ defined by +$~E_7 \, - \,E_5 \, - \,E_4 \, - \,E_2 ~$. + +% $~~~~\Box$ + +% \baselineskip = 1.8 \normalbaselineskip + +\begin{definition} +\label{def-3.4} +\rm +A term in mathematical logic +is defined to be a syntactic object, built +out of +solely + symbols for representing +functions, +constants and variables. +% +% The nomenclature in +% % classical +% logic has +% %formally +% defined +% a {\it ``term''} to be a syntactic object, built +% out of symbols for representing +% functions, +% constants and variables. +% +% +Such an object is called +% either +a {\bf ``Ground Term''} +%% (or for precision a +%%% {\bf ``Tree-Oriented Ground Term''} ) +when it is built {\it out of solely} +function and + constant symbols. +For example in our Q-Grounding language (which +uses +%owns only +$ C_0 $, $ C_1 $ and $ C_2 $ +as its +built-in + constants), +% symbols), +the expression +%of +``$\, C_2- C_1\,$'' +is +% such +a Ground term. +Two more complex +examples of +Ground terms are +``Max$( C_2 , C_1 - C_0)$'' +and ``Max$( ~\zzthe(C_1)~,~C_2 ~)$''. +Also, +expression $~E_j~$ +in Line \eq{ej-def} +should be viewed as +a Ground term (when one +views +its +use of the +symbol + ``1'' as an %informal +abbreviation +for the +constant + ``$~C_1~$''). +\end{definition} + + +\begin{remm} +\label{rem-def-3.4} +{\bf (sharply improving upon + \phx{th-3.3}'s result) : } +\rm +A longer version of this article +will +%technically +distinguish between two +kinds of Ground terms, which it calls the +% +%{\bf Comment of Definition \ref{def-3.4}'s Notation:} +%We will distinguish between two +%kinds of Ground terms in Section \textsection \ref{ss6}, +%called its +{\bf ``Tree-Oriented''} and +{\bf ``Dag-Oriented''} formats. +The latter will differ from a more +conventional tree structure +by having a +Directed Acyclic Graph structure replace +a logic's +usual + tree format for defining its quantitative values. +It will turn out that + Dag-Oriented Ground Terms +will allow one to compress multiple repeating +terms into single objects. +This will +%and thus +reduce the number of logical symbols in + \phx{th-3.3}'s +$O(~$Log$^{ \, 3\,} \,n~)$ sized +%ground +terms to a + more compact +$O(~$Log$\, \,n~)$ quantity. +(This is almost analogous to the +% (in a context where the pointers to our +$O(~$Log$\, \,n~)$ +size of an integer's binary encoding, +except that we will need $O(~$LogLog$\, \,n~)$ +further bits to encode the pointers to +each +specified +object.) + \end{remm} + + +%% quantity +%% $O(~$Log$\, \,n~)$ +%% objects will require $O(~$LogLog$\, \,n~)$ +%% bits per pointer). +%% %(analogous to the classical binary encoding of an integer). + +% +% {\it This is the same length +% as would occur in a conventional +% $O(~$Log$\, \,n~)$ sized binary encoding of an integer.} +% We will refer to this improvement later in the current +% article because it will suggest that +% \phx{th-3.3}'s +% $O(~$Log$^{ \, 3\,} \,n~)$ sized ground terms attain a length +% not too different from the binary encoding of an integer, +% after further refinements are undertaken. +% + + + +\begin{definition} +\label{def-3.5} +\rm +A ground term +% $~T~$ will be +is +called an +{\bf ``Observable''} +object iff it has a +%{\it only one} +% an +unique +interpretation of its +quantified value in the +%meaning in our +Q-Grounding language. +It +%will be + is +called an +{\bf ``Unobservable''} iff it has multiple +%plausible +such +interpretations +due to $\zzthe$'s ``indeterminate'' definition +(e.g. see Definition \ref{def-3.1}). +\end{definition} + +%%% (due to the +%%% %uncountably +%%% ambiguous nature of +%%% % our built-in function +%%% $~\zzthe~~$). +%%% \end{definition} + +\begin{exx} +\label{ex-3.6} +\rm +The previously mentioned ground term +Max$( ~\zzthe(C_1)~,~C_2 ~)$ is an ``unobservable'' +because it can assume any of the plausible integer values +of $~2 \, , \, 4 \, , \,8 \, , \,16 \, + \, ... ~$. +On the other hand, + +\newpage + +\gvxs +\nvxs +\parskip 0pt + +\noindent +\el{xoo} +%is +provides +an +example of an +``observable'' +that + represents + the integer value of ``3''. +(This is because +its +twice-repeating +term +``$~\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~]~$'' is bounded +below by 4, causing the left and right sides of its subtraction +operation to differ by +% an amount of +exactly 3.) +\beq +%% \small +\label{xoo} +\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~] ~~-~~ +\mbox{Pred}^{\, 3 \,} \{~\mbox{Max}[ ~C_2~, ~\zzthe(C_2)~, ~\zzthe^{ \, 2 \,}(C_2)~]~\} +\enq +Our notation +%thus +also +implies that Line \eq{ej-def}'s + expression $~E_j~$ +is an + ``observable''. This implies, in turn, that + \phx{th-3.3}'s term $~T_n~$ is an ``observable'' + (employing +conveniently +no more than + $O(~$Log$^{ \, 3\,} \,n~)$ +logical +symbols). +\end{exx} +% +% +% For example since $76~=~128~-~32~-~16~-~4~,\,$ +% it follows that $~ T_{76}~$ +% corresponds to the term +% $~E_7 \, - \,E_5 \, - \,E_4 \, - \,E_2 ~$, +% $~$where each $~E_j~$ employs only +% $O(~$Log$^{ \, 2\,} \,j~)$ symbols. +% %%%%%\end{exx} + + +\nvxs +\hvxs + + +Thus, \dfx{def-3.5} and Example \ref{ex-3.6} have illustrated +%that +how +the realm of ``observable'' objects is a +% very +broad and accessible world, +of +potential usefulness. +% +% non-trivial +% %% pragmatic +% significance. +% +It allows every integer $~n~$ to be represented by a +% reasonably small +term $~T_n~$ with +% an +a tight + $O(~$Log$^{ \, 3\,} \,n~)$ length +(in a context where +Remark \ref{rem-def-3.4}'s refinement +% Section \textsection \ref{ss6}'s more elaborate formalism +%will allow us to +will +reduce this length +almost to a more compact +% +% nearly +% to a +% % far +% more +% attractive +% +$O(~$Log$ \,n~)$ magnitude). + + +The distinction between +``Observables'' and ``Unobservables'' +% ground terms +will +%also +%% +%% cast a +%% delightful +%% +offer a + new perspective on +the aspirations +% that +which +Hilbert and G\"{o}del +expressed +in +their +statements $*$ and $**$. +% +% under our proposed formalism. +It + will suggest +how the Second Incompleteness Theorem +can +% remain to +be seen as a majestic result +from a purist perspective, while +a {\it well-defined fragment} of +%their +what +Hilbert and G\"{o}del +sought in + $*$ and $**$ +%aspirations +%% in statements $*$ and $**$ +can +likely +%almost certainly +be +%part-way +satisfied (in at least a +% well-defined +limited sense). +% +% +% +% +% \begin{remm} +% \label{rem-3.7} +% {\bf (explaining the goals of this paper):$~$} +% \rm +% Let us say +% that +% a basis axiom system $~\alpha~$ owns +% a {\it ``Finitized Perspective''} of the Natural Numbers +% if it requires only a +% {\it finite number} of proper axioms +% to construct the full set of integers +% $~0,1,2,3~... ~$. All conventional arithmetics have this property. +% %It is useful to divide such +% Such +% logics +% %arithmetics +% fall into two categories, +% called {\it Single} and {\it Double-Formatted} systems. +% %as defined below: +% They are defined below: +% %These constructs are defined below: +% \bed +% \item[ a. ] +% %An axiom basis $~\alpha~$ +% %will be called +% {\bf Single-Formatted Arithmetics} consist of +% axiomatic basis systems +% % $~\alpha~$ +% %all of +% whose +% %iff all its +% ground terms are +% all +% Observables. +% (Most conventional arithmetics +% %%%% will +% %fall into this +% lie in this +% category +% %when the +% because they +% employ the +% growth +% % function +% properties +% of +% the Successor +% operation +% %function +% in +% % a straightforward +% %the +% %% a conventional +% the traditional +% manner.) +% %% since the +% %% the simple growth function of Successor +% %% easily +% %% generates +% %% all the natural numbers). +% %are {\it ``Single-Formatted Formatted''} logics. +% \item[ b. ] +% {\bf Double-Formatted Arithmetics} +% % representing +% represent +% systems +% %%%consisting of +% %%%%axiomatic +% %%%logics +% %%%%%basis systems +% whose ground terms +% may be either +% Observables +% or Unobservables. +% (Axiomizations +% for Q-Grounded logics +% %% of +% %% the +% %% % our +% %% Q-Grounding language +% are +% %%% will +% %obviously +% %%% be +% ``Double-Formatted'' +% because they +% allow $\theta$'s analog of +% \el{wow}'s function symbol $F$ +% to have +% an uncountable number of +% different allowed +% representations). +% % +% % (Our +% % Q-Grounding language +% % gives support to such a system. +% % This is because it +% % can have its function primitives +% % defined by a finite number of +% % proper axioms,) +% % %axiom-sentences.) +% % \ennd +% The distinction between +% categories +% %Items +% (a) and (b) is +% significant +% % important +% because +% Example \ref{ex-2.3} +% %%% \pag2 +% %%% had +% already explained how +% statement $++$'s generalization +% of the Second Incompleteness Theorem applies to +% any formalism recognizing Successor as a total function. +% Thus, Item (b)'s Double-Formatted logics +% are useful, if one wishes to consider alternatives +% to +% %formalism that do not recognize +% successor as a total function. +% %More precisely, +% In this context, +% +This will be because +Hilbert's +% famous +%Year-1900 +Second +Open +Problem +can be viewed + as a {\it 2-part question}, +composed of sub-queries Q-1 and Q-2: +%%%%% +%%%%% {\it 2-part question}. +%%%%%The separation of Hilbert's question into two parts, +%%%%%called Q-1 and Q-2, will allow +%%%%%%% +%%%%%%% This +%%%%%%% bipartite +%%%%%%% distinction +%%%%%%% is useful because it +%%%%%%% can enable +%%%%%%% +%%%%%the academic community to better +%%%%% with +%%%%% what Hilbert and G\"{o}del were +%%%%%seeking to accomplish +%%%%%in +%%%%%their +%%%%%statements +%%%%%of $*$, $**$ and $***$. +\bed +\small +\item[ {\bf Question Q-1$~~$}] {\it Are any axiom systems +able to + prove +theorems +verifying + their own consistency in a robust sense?$~~$} +The answer to Q-1 is clearly ``No'' because the combination + G\"{o}del's initial 1931 result \cite{Go31} with +%the +%further +Hilbert-Bernays's result +\cite{HB39} +and the Pudl\'{a}k-Solovay invariant $++$ +(from Example \ref{ex-2.3}) +%% \pag2) +imply +arithmetics of ordinary strength cannot prove +their own consistency in a robust sense. +\item[ {\bf Question Q-2$~~$}] + {\it Can +logic systems +%arithmetic logics +%axiomatizations of Arithmetic +% , at least, +%somehow +``appreciate'' +% (not formally ``prove'') + their +own consistency in some +{\bf REDUCED} sense, that is diluted +but not fully immaterial?} +$~~\,$The answer to +%question +Q-2 is +complex +%%% more complex than Q-1 +%less clear-cut +because +%several types of +some +arithmetics, +such as \cite{ww93,ww1,ww5,wwapal,ww9,ww14}'s paradigms, + can +formalize +% ``recognize'' +their +own consistency +using Example \ref{ex-2.5}'s +% a +Fixed-Point {\it ``I am consistent''} +axiom. +Moreover, + Definition \ref{def-3.5}'s +% further +separation of +the concepts of ``Observables'' from ``Unobservables'' +% +%the notions of Observable from Unobservable objects +% +raises +some +% further +% very +subtle issues beyond these distinctions. +\ennd + + +%% % sentence $\,\oplus\,$. +%% %%Using +%% %%%%%%%%%Under +%% % Using the notation from +%% Under +%% Lines +%% \eq{totdefxs}--\eq{totdefxm}'s notation, +%% these paradigms include: +%% % both: +%% \bee +%% \small +%% \baselineskip = .86 \normalbaselineskip +%% \item +%% Type-A arithmetics +%% \cite{ww93,ww1,ww5,wwapal,ww9,ww14} +%% %capable of +%% recognizing their self-consistencies under +%% either the deductive mechanics of semantic tableaux or one +%% of its cousins. (See especially \cite{ww14}'s +%% recent Wollic-2014 paper.) +%% \item +%% Type-NS arithmetics recognizing their Hilbert consistency, +%% such as the formalisms of \cite{ww1,wwapal} +%% %further +%% improved, possibly, +%% with the added techniques introduced in +%% this article. +%% \ene +%% +%% \ennd + +One theme +in +% the remainder of +this article will be that +the +Second Incompleteness Theorem represents a +$100 \, \% $ +full +% comprehensive +reply to question Q-1 +but only a +% and a + 90 \% +% adequate + reply to question Q-2. +Our +tiny +% only +%tiny + caveat to Q-2 will be related to Hilbert's +insistence that {\it some type of ``new formalism''} +% was needed +will be needed +to explain how +% it is +humans +motivate themselves to engage +in cognition. + +%The next section of this article will +% note + +Our discussion will +observe +% that +mathematicians +% had +made no distinction between +Unobservable and Observable ground terms during the +% early +1930's. +% We +It +will suggest +a +% tiny new +revised +interpretation can be assigned to the +% historic +%often-quoted +statements $*$ and $** \,$ +of +%by +Hilbert and G\"{o}del, +when one +views +them + from the perspective of +arithmetics that +rely upon indeterminate growth functions, +similar to $\theta$. + +%employ $\theta-$like +% growth functions. + +% logics that allow deploying unobservable ground terms. + + +% owns two types of ground terms. + +% looks more closely at these two types of +% ground terms. + + +%% where the remaining 5-10 \% fraction of +%% unresolved issues is connected to the +%% fundamental +%% distinction +%% separating +%% % separation of +%% Unobservable from Observable ground terms. + + +% that the final +% tiny remaining +% 5-10 \% +% gap, pointed to +% in +% % by +% Hilbert's and G\"{o}del's +% statements $*$ and $** \,$, can be viewed as +% being related to this +% fundamental +% distinction. + + +%% Some +%% %other insightful +%% different +%% approaches to these dilemmas + +%Some other + +Other insightful +approaches +to +% the +Incompleteness paradigms +are related to + Gentzen's perspectives about +transfinite induction +under his $\epsilon_0$ ordinal +\cite{Ge36,Ta87}, the +%% +%% +%% explore +%% how \cite{wwapal}'s results for a Single-Formatted logic +%% can be revised +%% % with our new $~\zzthe~$ function +%% under a +%% +%% Before +%% broaching +%% this topic it should be mentioned that +%% %0fascinating +%% other approaches to +%% %efforts to partially +%% the Second Incompleteness Theorem +%% % do +%% have centered around +%% + Kreisel-Takeuti's ``CFA'' +system \cite{KT74} +and +the {\it interpretational frameworks} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to +our +%% main +%\cite{ww93}--\cite{ww14}'s +methods. +%approach. +They +do not use +% Kleene-like +{\it ``I am consistent''} axiom-sentences, +similar to Example \ref{ex-2.5}'s +``SelfRef'' statement. +Also, +they +%apply to +employ +``cut-free'' logics +(rather +than +a +% preferable +Hilbert-style +deductive +apparatus). +%that +%%%%%%%%%%% explored +%%%%%%%%%%% in +%%%%%%%%%%% \textsection \ref{ss32} ). +%%%we are considering). +%% +%%Instead, CFA uses the +%%special +%%properties of ``second order'' generalizations of Gentzen's +%%{\it cut-free} +%%Sequent Calculus, +%%and +%%the +%%interpretational approach +%%formalizes how some systems +%%recognize their +%% Herbrand consistency +%%on localized sets of integers, +%%which +%%unbeknownst to +%%themselves, +%%includes all +%%integers. +%% +%%%These +% alternate +%%%approaches +Their +%alternate +% very + fascinating +perspectives +should +% certainly, + be examined by researchers +interested in the +% Second +Incompleteness Theorem, +but they are unrelated to +our +objectives +%IQFS formalism. + +\smallskip + + +%% During our +%% % description +%% investigation +%% of IQFS, + +Also during the next chapter, +the reader should keep +in mind that +Proposition \ref{th-3.3}'s +% characterization of the +$O(~$Log$^3 \, n \,)$ +lengths for encoding $T_n$'s ground terms can be reduced to +% an essentially +% a more compact +%nearly an + essentially an + $O(~$Log$ \, n \,)$ complexity, +when these terms are encoded +using +%under + Remark \ref{rem-def-3.4}'s +more compressed +Directed Acyclic Graph +% formalism. +methodology. +This fact will make IQFS's formalism look +% much +% significantly more tempting. +%%%% very +quite + tempting. + +% cccc ddddddd + +%% the next chapter's discussion. +%% +%% +%% Their insights are important but +%% unrelated to +%% our particular +%% % the next section's +%% %specific analysis of +%% %%% type of +%% Hilbert-styled self-justifying effects, +%% explored in the next chapter. +%% + + + +\gvxs + +\vspace*{- 0.6 em} + +\section{Proposed New IQFS Formalism} + + \label{ss32} +\label{ss5} + +\vspace*{- 0.6 em} + + +\nvxs + +% \rvxs + + +\parskip 1 pt + +The only aspect of our prior research that will be +related to our proposed new IQFS formalism +is the ISCE framework, +defined in \cite{wwapal}'s Sections 3 \& 4. +The next several paragraphs will review +\cite{wwapal}'s results, +so that a reader +can omit examining \cite{wwapal}. + + +% will not need to examine +% \cite{wwapal}'s +% formal treatment. +%results. +%%%%%%%%%%%%%%%for the reader's convenience. +%% +%% This section will +%% review \cite{wwapal}'s results in sufficient detail +%% so that a reader need not examine \cite{wwapal}'s formal +%% text, +%% +%% %%%%%definition of the ISCE axiom system. +%% +%% During our discussion, +%% + +% \lvxs +% \parskip 1 pt + +\smallskip + +During our +discussion, +%review of \cite{wwapal}'s results, +$~L^G~$ will again denote +our + ``Grounding-level'' +language +that +formalizes +%employs +\textsection \ref{seee3}'s +six non-growth +% functions of +operations of + Subtraction, Division, +Maximum, Logarithm, Root and Count determination. +%%% +%%% the six ``Grounding-level'' +%%% % non-growth +%%% functions defined on Page 5. +% +% consisting +% of +% the +% Subtraction, Division, +% Maximum, Logarithm, Root and Count operations. +% +Also, $\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ will denote +three constant symbols designating the +integers +%values +of +``0'', ``1'' and ``2''. +In a context where Pred$(x)$ is an abbreviation for +``$\,x \,- \, 1\,$'', +%% (or more precisely ``$\,x \,- \, C_1\,$'' ), +the ISCE axiom system +% from \cite{wwapal} +used +\eq{start}'s axiom + statement +to define + $\,C_0\,$, $\,C_1\,$ and $\,C_2~$: +% these three constants: +\begin{equation} +\label{start} +\small +\mbox{Pred}( C_0 ) = C_0~ \, \wedge ~ \, +C_1 \neq C_0~ \, \wedge ~ \, +\mbox{Pred}( C_1 ) = C_0 ~ \, \wedge ~ \, +\mbox{Pred}( C_2 ) = C_1 +\end{equation} +%Also, +The challenge +\cite{wwapal} +faced was its formalism could +not use any of the +% conventional +operations +%function-operations +of +successor, addition or multiplication to infer the existence +of larger integers from the initial constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ +(without violating $++$'s generalization of the Second Incompleteness +Theorem). +% +% This was because +% the Pudl\'{a}k-Solovay result $++$ +% indicated +% the +% presumption successor is a total function +% precludes +% most +% %axiom +% systems +% from recognizing their +% own Hilbert +% consistency. + +\smallskip + + +Our article +\cite{wwapal} +considered two +methods for achieving these tasks, +%alternatives +%to a conventional Successor +%function symbol +% for overcoming these difficulties, + called +the {\bf Additive} and {\bf Multiplicative Naming} +conventions. +They defined +some +further constant symbols $~C_3,~C_4,~ C_5,~ ...~$ +and $~C^*_3,~ C^*_4,~ C^*_5,~ ...~$ +where +%respectively +$~C_j~=~2^{j-1}~$ and $~C^*_j~=~2^{\, 2^{ \,j-2}}~$. + +\smallskip + + +The definition of these +% new +constants +% symbols +is +easy +%straightforward +under $L^G\,$'s +% Grounding-level +language. +% called $L^G~,~$ +%all of whose function objects are non-growth primitives. +This is because +Lines +\eq{newadd} and \eq{newmult} +%had +specify how +% that +two 3-way predicates, called +Add$(,x,y,z)$ and Mult$(,x,y,z)\,$, +%can +%do +encode the identities of +% can be encoded to specify, respectively, +$x=y+z$ and $x*y=z$. +Our additive and multiplicative +% naming +conventions +can, +%will, + then, define + $~C_3,~C_4,~ C_5,~ ...~$ +and $~C^*_3,~ C^*_4,~ C^*_5,~ ...~$ +%by using +via +an infinite number of instances of +%utilizing respectively + \eq{addcov} and +\eq{multcov}'s +%{\it infinitely long} +axioms: +%%%%%%%%%% schemas: +% two infinite schemas of axiom-sentences: +%% +%% that belong to our +%% ``Additive'' and ``Multiplicative +%% Naming Conventions'', +%% then the values for +%% $~C_j~$ and +%% $~C^*_j~$ can be easily derived from $j-2$ instances of +%% %respectively \eq{addcov} and \eq{multcov}'s +%% these +%% schema: +%% + + +{ +\small +\beq +\label{addcov} +\mbox{Add}(~C_{j-1}~,~C_{j-1}~,~C_{j}~) +\enq +\beq +\label{multcov} +\mbox{Mult}(~C^*_{j-1}~,~C^*_{j-1}~,~C^*_{j}~) +\enq} +The methodology in + \cite{wwapal} +%% employed \eq{addcov} and \eq{multcov}'s schema in a context where it +presumed +% assured +%the Y of +the ``names'' for its constants $ C_j $ +and $ C^*_j $ +had nice compact encodings using $O(~Log(j)~)$ bits. +Its formalism calculated +%, thereby, +the values of ``unnamed'' integers from +named entities via the {\it non-growth} Subtraction and +Division primitives. For instance since $~20~=~32-8-4~,~$ +the quantity 20 +can be encoded as $~C_6-C_4-C_3$. +%%%%%%%%%%%%%%%% under \eq{addcov}'s naming convention. + + +%% required +%% $O(~Log(j)~)$ bits. +%% Thus, the length of these encodings was +%% much +%% smaller +%% than the respective +%% numbers +%% % magnitudes of +%% $2^{j-1}~$ and $2^{2^{j-2}}$ +%% %that +%% these constants represent. + +\smallskip + + +The challenge \cite{wwapal} +faced was to determine whether +%it was possible to formulate +self-justification +was possible +under +%% either +\eq{addcov}'s +% ``Additive'' +or \eq{multcov}'s +% ``Multiplicative'' +%% naming +schema. +It found +%that + \eq{multcov}'s +multiplicative +% naming +convention was incompatible +with self-justification (due to its +%%very +speedy growth rate), +but +%In contrast, +\eq{addcov}'s additive +% naming +schema did +% conveniently, + permit self-justification. + +\medskip + +Our new proposed IQFS +axiom system is easiest to describe, if we first +review \cite{wwapal}'s definition of ISCE +and then +explain how our IQFS framework +%% +%% will improve upon +%% it (by not requiring +%% the definition of an infinite number of separate +%% constant symbols). +%% +can incrementally refine it. +The extension of our base-language $~L^G~$ +that includes the Additive Naming Convention (ANC)'s +additional constants + $~C_3,~C_4,~ C_5,~ ...~$ +will be called +an {\bf ANC-Based Language}. +It will be denoted +as $~L^{ANC}~$. +Also if + $\, t \,$ denotes any term in $\, L^{ANC} \,$'s +language, then +the quantifiers in +the two wffs of +$~ \forall ~ v \leq t~~ \Psi (v)~$ and +$\exists ~ v \leq t~~ \Psi (v)$ +will be called $\, L^{ANC} \,$'s +{\bf ``Bounded +Quantifiers''}. + + +\begin{deff} +\label{def-3.8} +\rm +The analogs of +% a + conventional +% arithmetic's +$\Delta_0$, $\Pi_n$ and $\Sigma_n$ +formulae +in the +language $L^{ANC}$ will be denoted as +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ + and $\Sigma^{ANC}_n$. +Thus, +a formula will be defined to be +$\Delta^{ANC}_0$ iff all its quantifiers are bounded. +The +%%%%%%%%% below +definitions +of $\Pi^{ANC}_n$ and $\Sigma^{ANC}_n$ +formulae are +% also +quite conventional: +\bee +%\small +\parskip -2 pt +\baselineskip = 0.8 \normalbaselineskip +\item +\small +Every +$\Delta_0^{ANC}$ formula is considered to +be +also +a +$\Pi_0^{ANC}$ and +an +$\Sigma_0^{ANC} $ expression. +%% +%% ``$~\Pi_0^{ANC}~ \,$'' and +%% % also +%% ``$~\Sigma_0^{ANC}~ \, $''. +%% +\item +A +formula +is called + $ \,\Pi_n^{ANC} \,$ +when it +% is +can be +encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ +where +%with +$\Phi$ is $\Sigma_{n-1}^{ANC}$ +\item +A formula +is called + $\Sigma_n^{ANC}$ +when it can be encoded as +$\exists v_1~ ...~ \exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{ANC}$. +\ene +\end{deff} + + + +%%\begin{deff} +%%\label{def3.9} +%%\rm + + \parskip 0pt + + +Given an initial axiom system $\beta,$ +the Theorem 3 of \cite{wwapal} defined a +self-justifying logic, called +ISCE$(\beta)$ +that could prove all +$~\beta\,$'s $\Pi_1^{ANC}$ theorems and +verify its own consistency under a Hilbert-style deductive +apparatus. It consisted of the following four +groups of axioms: +% +% \newpage +\begin{description} +\small + \parskip 2pt +\item +{\bf GROUP-ZERO:} +This +schema +% axiom group +will +use \el{start}'s axiom to define the constants of +$\,C_0\,$, $\,C_1\,$ and $\,C_2\,$ +and +%employed +%an infinite number of instances of +\el{addcov}'s Additive Naming +schema +%convention +to define + the further constants + $ C_3, C_4, C_5, ... $ +\item +{\bf GROUP-1:} +It is convenient to +define + ISCE's Group-1 and Group-2 +axioms using a notation that +will support \cite{wwapal}'s Theorem 3 +in a +% slightly + more +general sense than +appeared in \cite{wwapal}, +%%% under a slightly different notation convention, +% is transparently equivalent +% (but slightly different) from \cite{wwapal}'s counterpart, +so our +% a +new +% proposed +%%%% second + ``IQFS'' +formalism +(appearing later in this section) +% shall +will +%proposal shall +% framework will +be easier to define. +Let us +therefore + say a $\Pi_1^{ANC} $ sentence is {\bf Simple} +iff the only built-in constants it employs are +$\,C_0\,$, $\,C_1\,$ and $\,C_2$. +Then ISCE's Group-1 scheme will +allowed to + be any finite set of +simple $\Pi_1^{ANC} $ axioms, called $~S~,~$ +that is consistent with Group-zero schema and +which + has +the following +two +properties: +\bee +\item + The union of $~S~$ with ISCE's Group-Zero +axioms +%will be capable of proving +%do +will +prove +all true $\Delta^{ANC}_0 $ +sentences. +% +% statements which +% are true. +\item + The union of $~S~$ with ISCE's Group-Zero +scheme +%will be capable of proving +will +% do + prove +that +the ``=" and ``$\leq$" predicates +% own +support +their conventional +transitivity, reflexivity, symmetry and total ordering +properties. +\ene +Any finite set +$\Pi_1^{ANC} $ axioms +with the above properties can be used to define $~S~$ +and +support +%prove +an analog of +\cite{wwapal}'s Theorem 3, +by a trivial generalization +of +\cite{wwapal}'s results. +% +% \footnote{A formal proof of this generalization of +% \cite{wwapal}'s results is +% %absolutely +% entirely +% routine. +% % and omitted here for the sake of brevity.} +% For the sake of brevity, it is +% omitted.} +% +% of +% the methodologies from Sections 3 and 4 of +% \cite{wwapal}. (Thus, +% any such finite set $~S~$ supporting Conditions (1) and (2) +% can be employed +% by +% ISCE's +% Group-1 part.) +%%% +%%% and it is unimportant which +%%% particular defining +%%% set is used. +% +% BBB111 +% +% This +% % schema +% axiom group +% consisted of a finite +% set of +% $\Pi_1^{ANC} $ axioms +% %, CALLED $F$, +% defining ISCE's +% Grounding function primitives. +% %This means that +% For each such function $G$ and set of numbers +% $ {k}, {k_1}, {k_2}, ... {k_m}$, +% %the combination of +% the Group-Zero and Group-1 axioms +% %must +% will +% imply +% $ G( {k_1}, {k_2}, ... {k_m}) \,=\, {k} $ when +% this sentence is true +% \footnote{ \f55 +% Our +% $\Pi^{ANC}_1$ +% encoding for the +% Group-1 scheme needs, +% technically, +% % employ +% only +% employ +% the three constant symbol $C_0$, $C_1$ and $C_2$ for the +% union of all +% the +% Group-Zero and Group-1 axioms +% to satisfy +% their +% %its +% %the +% above requirements.} . +% The Group-1 schema +% of \cite{wwapal} +% will also +% assign the ``=" and ``$<$" predicates +% their conventional +% % logical +% properties. +% %footnoted property.} +% %% +% %%(Any finite +% %%set of $\Pi_1^{ANC} $ +% %%sentences meeting these conditions is +% %%suitable.) +% %% +\item +{\bf GROUP-2:} +Let +$\ulcorner \, \Phi \, \urcorner$ denote $\Phi$'s G\"{o}del number, and +$\mbox{HilbPrf}_{ \beta }(x,y)$ +denote a +%%%%%%%%%%% $\Delta _0^{ANC+}$ +$\Delta _0^{ANC}$ +formula indicating $y$ is a +Hilbert-styled +proof +from axiom system $\beta $ of the theorem +$x$. +% +% Suppose that +%$~\beta~$ uses the same Grounding function symbols as +%ISCE$^{ANC}(\beta)$, +%and it therefore generates +%a set of +%% $\Pi_1^{ANC+} $ theorems. +% $\Pi_1^{ANC} $ +%theorems. +% +For each +%$\Pi_1^{ANC+} $ +$\Pi_1^{ANC} $ + sentence $\Phi$, +the Group-2 schema +for ISCE$(\beta)$ +% +%was defined in \cite{wwapal} +%did +will +contain +% an +one +axiom of the form: +%% +%% \begin{equation} +%% \small +%% \label{group2nold} +%% \forall ~x~\forall ~y~ +%% ~~\{~~[~~ \sigma_{~ \ulcorner \, \Phi \, \urcorner +%% ~}(x)~\wedge~ +%% \{~ \mbox{HilbPrf}~_\beta +%% ~(~ x ~,~y~)~~]~~ +%% \Rightarrow ~~ \Phi~~ \} +%% \end{equation} +%% % {\bf IMPORTANT CLARIFICATION:} +%% %{\small +%% %%{{\bf DECIPHERING LINE \eq{group2nold}:$~$} +%% {{\bf Clarification:$~$ } +%% \el{group2nold} is {\it helpful} +%% because ISCE(\beta)$ can infer +%% \eq{group2old}'s {\it simpler statement} +%% directly +%% from the combination of +%% \eq{group2nold}, +%% % it, +%% the Group-1 schema and \el{deltf}'s definition of +%% ``$~\sigma~$''.} +%% +\begin{equation} +% \small +\label{group2old} +\forall ~y~~~\{~ \mbox{HilbPrf}~_\beta +~(~ \ulcorner \Phi \urcorner ~,~y~)~~ +\Rightarrow ~~ \Phi~~\} +\end{equation} +\item +{\bf GROUP-3:} +This last part of +%%%%%%%%%%%%%%% \cite{wwapal}'s +ISCE$(\beta)$ +% formalism +was + a single +self-referencing +$\Pi_1^{ANC}$ +sentence +stating: + %% essentially declaring: +\begin{quote} +% \small +%%%%%%%%%%%%% $ \oplus ~ \oplus ~~~$ +$ \oplus \oplus ~~~$ + ``There +%is +exists +no +Hilbert-style proof of 0=1 from the union of the Group-0, 1 and 2 +axioms with {\it THIS SENTENCE} (referring to itself)''. +\end{quote} +\end{description} +%{\bf CLARIFICATION:} +{\bf Clarifying $ \oplus \oplus$'s Meaning:} + $~$Several of our articles +\cite{ww1,ww5,wwapal,ww9} +employed +self-referential + $\Pi_1^{ANC}$ constructions, +similar +to +%%%%%%%%%the sentence + $ \oplus \oplus \,$, +as Example \ref{ex-2.5} had mentioned. +%% +%% whose +%% % precise implications were outlined in +%% significance was explained by +%% %formalized by +%% Example \ref{ex-2.5}. +%% +A reader can find +several +%detailed +slightly different + illustrations about how +$~ \oplus \oplus ~ $ +% $\, \oplus \oplus $'s +% self-referential statement +is encoded in these articles. + + +% +% Each of these articles provide examples of +% how analogs for +% $\, \oplus \oplus $'s +% self-referential +% statement +% are encoded. + + + +% If the reader wishes to see +% a formal encoding for +% $\, \oplus \oplus $'s +% %self-referential +% % Fixed-Point +% statement, +% %it +% one such example +% is provided by +% \cite{wwapal}'s +% Lemma 1. +% + + +\begin{deff} +\label{def-3.9x10} +\rm +Let $~I(~\bullet~)~$ denote +an operation that maps +an initial axiom basis $\, \beta \,$ onto an alternate +system $\,I(\beta)\, $. +(One example of +such an operation is the + ISCE$( \, \bullet \, )$ +framework, +that maps +an initial axiom basis of + $~\beta~$ onto +the alternate formalism of + ISCE$(\beta).~)~$ +Such an operation $~I(~\bullet~)~$ +is called {\bf Consistency Preserving} +iff $\,I(\beta)\, $ is consistent whenever +the union of + $\beta$ with the Groups 0 and 1 axiom schemas is +consistent. +\end{deff} + + +%Most of our research in +% \cite{ww93}-\cite{ww14} +% has + +Several of our research projects +%centered around +%had +employed + \dfx{def-3.9x10}'s +framework. +For instance, +%% +%% the +%% +%% +%% Its +%% %%% main +%% % central +%% focus in +\cite{wwapal} +demonstrated +%consisted of showing + the ISCE$( \, \bullet \, )$ +mapping was consistency preserving. +Thus if PA+ denotes the extension of +Peano Arithmetic that +includes +PA's traditional Addition and Multiplication +functions +%% +%% 1n addition to the conventional +%% functions of addition and multiplication +%% contains +%% +%% +plus $L^G\,$'s six +added +%previously mentions + Grounding-level function +primitives, +%functions, +then + ISCE$( \, $PA+$ \, )$ +will +be automatically +%be + consistent +(because PA+ was consistent). +% consistent whenever PA+ is consistent. +Hence while Peano Arithmetic is unable to +verify its own consistency, +% (on account of G\"{o}del's +% seminal 1931 discovery), +it is sufficiently agile to +prove the following relative-consistency statement: +\begin{center} +%% \small +$\#~~~$ If PA is consistent then + ISCE$( \, $PA+$ \, )$ is + self-justifying. + \end{center} +This +%The above +% statement + relative-consistency statement +%does offer +provides +a partial +positive +answer to +the +Q-2 version of Hilbert's Second Question. +It +captures +% Brad change encapsulizes +one +% positive +respect +in which +%such as +ISCE$( \, $PA+$ \, )$ +can {\it appreciate} its own consistency. +% +% \newpage +% +% \svxs +% +% \noindent +%This is because it formalizes one respect +This respect is, obviously, +only +of a limited nature +because $++$'s generalization of the Second +Incompleteness Theorem indicates +that +no Type-S arithmetic +can +% simultaneously +recognize +% {\it both} +its Hilbert consistency and +take +successor +to be + a total function. +%The consistency-preservation property of +% ISCE$( \, \bullet \, )$ +%dies, however, +It does, however, + raise the following +enticing + question: +\newpage + +\lvxs +\parskip 0pt + +\begin{quote} +$\# \, \#~ $ +\small +Can the infinite number of +distinct + constant symbols, employed by +ISCE's Group-Zero schema, be reduced to a finite size +by a Type-NS Self-Justifying Logic, +without resorting to \cite{wwapal}'s inefficient +``ISINF'' +methodology (which requires +a proof +having an expensive + $\Omega(N)$ length for constructing integers $N$ +whose binary encoding uses $O(~$Log$(N)~)$ bits) ? +\end{quote} +The remainder of this section will outline how an encouraging +answer to +$\, \# \, \# \, $'s query +is likely to +%%%should, +% conveniently +arrive, +%be plausible +when one +% carefully +%delicately +modifies ISCE's formalism +with the Q-function operative of $~\zzthe~$. + +\begin{deff} +\label{def-3.10} +\rm +Let $L^Q$ +% once +again denote the extension of +$~L^G\,$'s Grounding language that includes +the +% further + Q-function symbol of $\, \theta $. +Then +$\Delta^Q_0$, + $\Pi^Q_n$ and $\Sigma^Q_n$ +will, +intuitively, +%similarly + denote the +% 1-to-1 +analogs of +\dfx{def-3.8}'s +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ and $\Sigma^{ANC}_n$'s +formulae +in $~L^G\,$'s language. +In particular, if $~\Phi~$ +is one of an +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ or $\Sigma^{ANC}_n$ +formula, +then +% the formula +$~\Phi^Q~$ +will be called +% respectively +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +when +%if +it +differs from $~\Phi~$ +only +by + replacing each constant $~C_J~$ +from the set $~C_3,C_4,C_5...~$ +with Line \eq{ej-def}'s +% mathematically equivalent term of +term $~E_{J-1}~$. +\end{deff} + +\parskip 2pt + +%% 444444444444444 + +\begin{example} +\label{ex-3.11} +\rm +Suppose $~\Phi$ +is one of a +$\Delta^{ANC}_0$, + $\Pi^{ANC}_n$ or $\Sigma^{ANC}_n$ +sentence that employs the three constant symbols +of $C_4$, $C_6$ and $C_{10}\,$ +for + representing the +three numbers +of 8, 32 and 512. +Let us recall +that + $E_3$, $E_5$ and $E_9\,$ +% do +formulate these three quantities +under Line \eq{ej-def}'s notation. +Then $~\Phi^Q$ will have an +identical definition as + $~\Phi$ +except each $C_j$ is replaced by +$E_{j-1}$. + + +A formula is, +moreover, + defined to lie in one +of the +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +classes +{\it only if} it is constructed in such a manner. +This fact +% brad assures +ensures +that all the terms employed in these +three classes of sentences are +{\it ``Observable''} terms. +Hence ``Unobservable'' ground terms are allowed in +$~L^Q\,$'s language, but {\it they are excluded} +from occurring in the +{\it ``end-product''} +$\Delta^Q_0$, + $\Pi^Q_n$ or $\Sigma^Q_n$ +theorems +that +%%will now be discussed. +%it proves ! +do +encapsulate +%formalize + the {\it intended use of +%its +this +formalism.} +\end{example} + + +\begin{deff} + \label{def-3.12} +\rm +The term {\bf IQFS($ ~\bullet~$)$~$} +will refer +to the self-justifying analog of + ISCE($ ~\bullet~$)$~$ +%that will be employed +under $L^Q\,$'s +language. +(The acronym ``IQFS'' stands for +``Introspective Q-Function Semantics''.) +In a context where $~\beta~$ is +%some i +an initial axiom +system that proves theorems +%under +in +the +language $L^Q$, the +system +%formalism + IQFS($ \, \beta\,$) +%$~$ +will +be defined as a + 4-part +formalism, +analogous to ISCE($\beta$), +except for the following +%relatively modest +three +relatively +modest +changes: +\bed +\small +\parskip 0pt +\item[ a. ] +The Group-Zero schema of + IQFS will +differ from ISCE's analog +by replacing +\el{addcov}'s ``Additive Naming'' schema with +the +Up-Walking axioms, +given in Lines \eq{walk1}--\eq{walk4}. +(This is because +the language $L^Q$ differs from + $L^{ANC}$ by +having the + Q-function operator of $~\zzthe~$ +define the formal quantities that are represented by +the constant symbols +of $~C_3,C_4,C_5~~....~$ +under $L^{ANC}.~~)$ +%% +%% Otherwise both +%% these +%% Group-Zero +%% schemes will be +%% identical. +%% Thus, +%% they +%% will +%% both +%% use \el{start}'s axiom to define the +%% three initial constants of +%% $\,C_0\,$, $\,C_1\,$ and $\,C_2\,~$. +%% +\item[ b. ] +All the $\Pi_1^Q$ axioms lying in IQFS's +Group-1 and Group-2 schemes will be +% identical +analogous to their counterparts +under ISCE, except they +will + employ +\dfx{def-3.10}'s machinery for translating + $ \,\Pi_1^{ANC} \,$ +sentences into +essentially their +% equivalent + $ \,\Pi_1^Q \,$ counterparts. +\item[ c. ] +The Group-3 axiom of IQFS +will be similar to ISCE's Group-3 +{\it ``I am consistent''} +axiom-statement, except +the latter's notion of ``I'' will reflect the above +changes in the Groups 0, 1 and 2 schemes. +It +%Thus, the new +%Group-3 axiom +will, +thus, +be a $\Pi_1^Q$ sentence declaring that +{\it ``There is no +Hilbert-style +proof of 0=1 from the union of the preceding axioms +with THIS SENTENCE (looking at itself)''.} +\ennd +\end{deff} + +%\noindent + +\bvxs +\parskip 2pt + +{\bf REVISITING THE Q-2 VERSION OF + HILBERT'S SECOND OPEN +QUESTION FROM THE PERSPECTIVE OF ``IQFS'' .} +$~$ +Let us recall +% that +\textsection \ref{ss4} indicated +that Hilbert's Second Open Problem could be +divided into two sub-queries, +that were +called Q-1 and Q-2. +The former query asked whether axiom systems could +verify their own consistency in a robust sense, and the latter +inquired whether some +{\it weaker but non-trivial} forms of +self-justification might exist. +The +Q-1 +paradigm +% +% former query +% addressed the larger part of Hilbert's +% open question. It +% % We already noted that the Q-1 version of this query +% +was definitively resolved in a negative direction +by the combination of G\"{o}del's initial Second Incompleteness +Effect, +its +generalization +appearing +% documented +in the +Hilbert-Bernays textbook \cite{HB39} and the +Result $++$ due to the combined work of + combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}. +In contrast, +we noted in +\textsection \ref{ss4} + that there +were other +issues raised by the Q-2 version of Hilbert's +question that were +not yet +fully +resolved. + +% \gvxs + +\smallskip + +It is within +this +context where +Definition \ref{def-3.12}'s IQFS framework is helpful. +The strong similarity between the definitions of ISCE and IQFS, +{\it by itself,} +suggests that IQFS is likely to satisfy a +consistency-preservation property analogous to ISCE. +Moreover, all the techniques that were used to prove +either $++$'s generalization of the Second Incompleteness +Theorem +% +% (due to the combined +% work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +% \cite{Ne86,Pu85,So94,WP87}) +% +or the related subsequent +results of +% +% generalizations +% %% of the Second Incompleteness Effect +% that +% Example \ref{ex-2.3} attributed +% to +% +Buss-Ignjatovic, +H\'{a}jek, +\v{S}vejdar +and Willard + \cite{BI95,Ha7,Sv7,ww1} +% \cite{BI95,Ha7,Sv7,ww1,wwlogos} +lose their relevance in IQFS's context. + +\medskip + +This is because a longer version of the current article +demonstrates +the Groups 0, 1 and 2 axioms of IQFS +{\it are unable} +to prove +% an invariant implying +successor is a total function, +while the +incompleteness results +of \cite{BI95,Ha7,Ne86,Pu85,So94,Sv7,WP87,ww1} +require taking +successor as a total function. + +% is +% precisely what is needed for these formalisms to +% become applicable +% to IQFS. + +% (because they require a counterpart of a successor +% function operation). + + + +\smallskip + +The properties of IQFS + are +interesting +% especially intriguing +from a +% Computer Science +Complexity perspective +because +\phx{th-3.3} showed +% that +every integer $\,n\,$ +can +%could +be encoded +%under it by +by +%via +a + term $T_n$ that has an $O\{~[~$Log$(n)~]^3~\}$ length. +This is +unlike the +%much +%%%%%%%%%% far worse +asymptote $\Omega(n^2)$ that results +when the +$~\zzthe$ primitive +(from Lines \eq{walk1}-\eq{walk4}) +is replaced by +Lines \ref{zm1} and \ref{zm2}'s +less efficient +primitive of +$~\glamb~$. +Moreover, Remark \ref{rem-def-3.4} +indicated +% our +that these + $O\{~[~$Log$(n)~]^3~\}$ lengths +could be reduced +to almost an $O\{~$Log$(n)~\}$ size if +$L^Q\,$'s Ground terms were encoded as +Directed Acyclic Graphs (rather than as tree-like objects). + +We consider it 99 \% likely that +{\it BOTH} +Definition \ref{def-3.12}'s +%precise +specified +formulation of +% the + IQFS($ ~\bullet~)$ +%construct +and its +% more compressed Dag +implied Dag +refinement +(using Remark \ref{rem-def-3.4}'s additional machinery) +%modification +will satisfy +a consistency preservation property analogous to ISCE. +If this +2-part +conjecture is correct, it will support our +hypothesis that the Q-2 version of Hilbert's Second Open +Question +% would +does +support some +{\it fragmentary} +positive results, +in the context of +% with regards to +Hilbert-styled deductive methods using the +$~\zzthe$ primitive for formulating growth among integers. + +Moreover, a reader should not be +especially + concerned that the Group-2 +axiom schemas for ISCE and IQFS involve employing +an infinite number of separate incarnations +of \el{group2old}'s axiom schema. +This is because these +Group-2 schemas +can be +% should be able to be +nicely + reduced to a +purely +finite size, with almost no loss +in +%of useful +information. This was done in \cite{ww14} +for the Group-2 +scheme +of its IS$_D(\beta)$ formalism, +with the latter +%%%%%%%%%%%%%%%% still +%where the +% +% germane Group-2 scheme was +% reduced to one +% single axiom sentence +% while the resulting +% +% latter +%formalism still +% produced +producing +isomorphic counterparts +of all of $~\beta \,$'s +full set of + $\Pi_1$ theorems +(e.g. see +%Sections 5 and 6 +\textsection $\,$5 +of \cite{ww14}). +The same methods will +% trivially +%routinely +easily +generalize for +%%%% the +% +% Analogs of the techniques from Sections 5 and 6 of +% \cite{ww14} +% % will easily +% apply to each of the +% + IQFS, +% axiom framework, +if it does satisfy +Definition \ref{def-3.9x10}'s +Consistency Preservation property (as we +conjecture it does). + +% it does). + +\vspace*{- 1.0 em} + +%\section{Broader Perspectives Produced by These Results} + + +\section{Concluding Remarks} + +\vspace*{- 0.8 em} + +\lvxs + +\label{nnnew} + +%\Large +% \baselineskip = 1.8 \normalbaselineskip + +There is no question that the +% Second +Incompleteness Theorem +%does imply +% demonstrates +illustrates +that +90-95 \% of the initial objectives of +Hilbert's Consistency Program were overly ambitious. +It would, nevertheless, be of interest if +some 5-10 \% +fragment of +Hilbert's +% initially +intended +goals +% objectives +were +partially + achieved. + +%% bbbbbb + +\smallskip + + +This is because it is difficult to fathom how humans +can +maintain +their psychological motive to engage in cognition without owning some +type of +% qualified +instinctive faith in their own consistency. +%% +%% Moreover, the close similarity between the defining structures of the +%% ISCE and IQFS frameworks strongly suggests +%% \cite{wwapal}'s proof of ISCE's consistency preservation property +%% should generalize for both +%% IQFS and +%% IQFS$^*$ under a more elaborate +%% % and sophisticated +%% inductive machinery. +%% +Moreover, it is fascinating that +the distinction between +Unobservable and Observable ground terms, using +Proposition \ref{th-3.3}'s and Remark \ref{rem-def-3.4}'s + $\, \theta \, $ operator, +% +% whose $O(~$Log$^3\,n )$ and $O(~$Log$~n )$ complexities +% are characterized +% by Proposition \ref{th-3.3} and Remark \ref{rem-def-3.4}, +% +%%%%%% +$\,$does +seem to +lend credibility to a +% fraction +{\it partial subset} +% {\it fragment} +of the goals +that +Hilbert and G\"{o}del +advanced +%% were seeking +in +% aspiring to in +their +statements $*$ and $**~$. + +\smallskip + +\nvxs + +Also, the last five minutes of a YouTube lecture +by Harvey Friedman, +entitled +% the +{\it ``The Blessing and Curse of Kurt G\"{o}del''}, +raised the question +\cite{Fr14} +of whether +some type of +{\it sharply circumscribed} boundary-case exception +to +the Second Incompleteness +Theorem +might be possible. + + +% +% could be evaded with some +% % new +% non-recursive function symbol +% (which under +% \cite{Fr14}'s +% % Friedman's +% hypothetical +% example +% involved deploying the laws of Physics +% instead of +% % rather than +% Lines \eq{walk1}-\eq{walk4}'s +% indeterminate definition). + + + +% (in a context where the broader ambitions of these +% two statements +% are clearly untenable). + +%% infeasible + + +%Thus, + +% \medskip + + +Our proposed IQFS +% axiom system +framework +is intended to +be no full remedy, +when the +traditional growth properties of the addition, +multiplication and successor function operations are replaced +by an +alternative $~\theta~$ function symbol. +It is only a partial solution, similar to our +alternative class of +partially +positive + results in +\cite{ww93,ww1,ww5,ww14}, +involving +%axiom systems +arithmetics +that + sacrifice +% sacrificed +their +understanding that multiplication is a total function +for the sake of gaining an appreciation of their +semantic +tableaux consistency. + +\smallskip + +Neither of these +% results +formalisms +are perfect, and +imperfections +will +% be ever-present +always be + present +%result +%be inevitable +when one +% explores +considers + the +% tight + dilemma posed by the +% +% must +% always +% % have to +% be tolerated +% +% when examining the dilemma posed by the +Second Incompleteness +Effect. +It is within such a context that +{\it a well-defined fragment} of +%what +the goals +% which +that +Hilbert and +G\"{o}del sought in +$*$ and $**$ +should be +%% +%% looks +%% %part-way +%% like it is probably +%% +% realistically feasible +possible to +reach +%realize +under +% some +certain +% % might be plausibly +% %possible +% should be +% possible +% to obtain +{\it meticulously defined weak-logic settings$\,$,} +if IQFS satisfies an +analog of ISCE's + consistency-preservation +property (as we conjecture it +will almost certainly + do). + +%\textsection \ref{ss5}'s conjectures about IQFS do +%old to be ture. + + +% special +% % broad +% % potential +% interest. +% + + + \medskip + +{\bf Acknowledgments:} +%%%%As several Sections 1-4, +%\textsection \ref{ss2}, +I am +% much +%very +grateful to +%was influenced by an emailed letter from +Pavel Pudl\'{a}k +for suggesting +\cite {Pupriv} +I investigate how to apply +% an analog of +Ajtai's study +\cite{Aj94} of Pigeon-Hole effects +for +refining my prior results about self-justifying logics. +(The combination of + Pudl\'{a}k's +insightful suggestion +% \cite {Pupriv} +and our +subsequent +% further + distinguishing +between the +$~\glamb ~$ and $~\theta~$ operators +has led to the +conjectured + improvement of +\cite{wwapal}'s ISCE formalism.) +% I am very grateful to Pudl\'{a}k for making this +% suggestion. +I also thank Bradley Armour-Garb +and Seth Chaiken + for +% many +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%several +comments +% about how to improve +that improved + the +%this paper's +presentation. + + +\footnotesize +% \tiny +\parskip -3 pt + +%\baselineskip = 0.92 \normalbaselineskip +\baselineskip = 0.5 \normalbaselineskip +%\baselineskip = 0.65 \normalbaselineskip +\bibliographystyle{abbrv} +\bibliography{aa} + + \end{document} +\newpage + +rrrrrrrrrrrrrr + + +\Large + + +On How the Introducing of a New $~\theta~$ Function Symbol Into Arithmetic's +Formalism Is Germane to Devising Axiom Systems that Can Appreciate Fragments +of Their Own Hilbert Consistency + + +Why a Small Fragment of Hilbert's Consistency Program +Ought to Be Feasible +for Hilbert-like Deductive Methods +After A New $~\theta~$ Function Primitive +Is Added to Arithmetic's Formalism + +AFTER A NEW ``$~\theta~$'' Function Primitive + + + \baselineskip = 1.5 \normalbaselineskip + +It is known that the combined work of Pudlak and Solovay, enhanced by some +added techniques of Nelson and Wilkie-Paris, implies no reasonable axiom +system can verify its own Hilbert consistency, when it recognizes Successor as +a total function and treats addition and multiplication as 3-way relations. +These considerations will lead us to examine unconventional axiomatizations +for arithmetic that continue to view addition and multiplication as 3-way +relations, but which replace the successor function symbol with an entirely +new operator, called the $\theta$ primitive. + + + +It is likely that this paradigm can be combined with the prior results in our +APAL 2006 paper to construct axiom systems that are seriously diluted but able +to verify their Hilbert-style consistency in some interesting fragmentary +respects. + + + +%% This operator will allow us to encode any integer n by a term $T_n$ whose +%% length will exceed the O(Log n) length of a binary encoding by only the +%% relatively small magnitudes formalized by our Proposition 3.3 and Remark 3.6. +%% It is likely that this paradigm can be combined with the prior results in our +%% APAL-2006 paper to construct axiom systems that are seriously diluted but able +%% to verify their Hilbert-style consistency in certain interesting respects. + + + +{\bf Keywords:} + +G\"{o}del's Second Incompleteness Theorem, +Hilbert's Second Open Question, +Bounded Arithmetic, +Distinction Between Semantic Tableaux and Hilbert Deduction, +Weak Arithmetics. + +\end{document} + +% \parskip 2pt + +The +significance +% roles +of +% Observations +(a) and (b) +%in our research +%from the current example, +will become +% more +evident +as this article progresses. +Essentially, our +prior research +% , +% best summarized in \cite{ww14}, +% has +% +% had +focused +% mostly +on Type-A arithmetics +that could verify their consistency under +% either +semantic tableaux deduction +and/or its near cousins. +%% +%% or some near-cousin of this concept +%% (e.g. see \cite{ww14}'s summary +%% of \cite{ww93}-\cite{ww9}'s results). +%% The +%% +(A 15-page summary of this research appears in +\cite{ww14}, + but +it +%the latter +does need to be examined.) +%%% +%%% is +%%% not +%%% % unnecessary to examine as +%%% a prerequisite for reading this paper. +%%% +%%% +%%% but this technical +%%% material does not need to be examined.) +%%% does hot need to examine +%%% this material for the +%%% +%%% +Our +% new +$~\theta~$ operator, defined in the next section, will +raise the question about whether a +% surprising +% powerful +new +class of +%new +Type-NS systems +will +%may +satisfy an analogous +property in the context of +Definition \ref{def-2.2}'s more pristine +Hilbert-style methodology for deduction. + +\medskip + +% have +% a similar property.(The article \cite{ww14} offers a nice 16-page summary +% of our prior results +% \cite{ww93}-\cite{ww9} +% about Type-A arithmetics, but +% none of these results will +% be +% needed +% % to be examined +% during our current article's exploration of +% the properties of the new % +% $~\theta~$ operator.) + +% It will be unnecessary for a reader to examine any of our + + +%% % year-2014 +%% Wollic-2014 paper \cite{ww14} +%% summarized and extended our +%% results about +%% semantic tableaux consistency. +%% % and this +%% The current +%% new +%% year-2015 +%% paper +%% will, now, +%% explore whether +%% systems can +%% also corroborate +%% their Hilbert-styled consistency +%% under certain well-defined circumstances. + +%% (and seek to explore the restrictions $++$ imposes upon +%% Hilbert-styled deduction). + +% +% (The latter topic +% % is +% %very +% %entirely +% %different +% differs +% from the former +% because +% constraint $++$ +% applies only +% to its +% particular +% domain.) + +%in the second context.) + + +%% The constraints imposed by $++$ +%% are challenging +%% because Type-NS arithmetics + +This +topic +% subject +is +interesting +%challenging +because +%% essentially all +Type-S arithmetics +are forbidden by $++$ from +verifying the consistency +of their own Hilbert-styled deductions +%%%%%%%%%%%%%%%%%%% (and conventional +%forms of +(while +Type-NS formalisms are +%typically + usually +quite weak). +%% +%% (Thus, our efforts +%% to design +%% self-verifying systems +%% must focus on +%% Type-NS arithmetics). +%% +Our new +$~\theta~$ operator, +together with +Proposition \ref{th-3.3} +and Remark \ref{rem-def-3.4}, +% and \ref{th-6.1} +will suggest a +%possible +% plausible +partial +solution to this +problem by +% daunting challenge by +illustrating how +an {\it unusual class} of +Type-NS arithmetics can efficiently construct the +full set of integers $~0,1,2,3,...~$ +% by finite means +{\it without using} +any of the successor, addition or multiplication +% functional +operations. + +% function symbols. + +As a result, we will suggest +a +% a {\it part-way} +% that an interesting +%%% non-trivial (although diluted) +{\it small fragment} +of what Hilbert +and G\"{o}del +% sought +% referred to +did seek +%sought +in +statements +$*$ and $**$ +% will +% be formally achieved +% become tempting +is likely +% be +viable +under Definition \ref{def-2.4}'s formalism. + + + +% +% This +% topic +% % subject +% is challenging because +% $++$'s +% Type-NS arithmetics +% % obviously +% have sharply circumscribed powers +% (demonstrating the +% broad reach +% % ubiquitous nature +% of +% %the Second Incompleteness Theorem's reach). +% G\"{o}del's +% second theorem). +% %% +% %% The current article will +% %% show, however, that +% %% some Type-NS arithmetics are +% %% substantially +% %% stronger than previously +% %% anticipated +% %% (and they will have useful applications +% %% in +% %% computer science settings). +% %% +% %% Thus in a context where +% %% the power of both G\"{o}del's initial +% %% Second Incompleteness Theorem and $++$'s strengthening of it +% %% are stunning +% %% and +% %% have pervasive implications, +% %% we will show that a +% %% {\it partial-and-much-less-than-full} +% %% fragment +% %% of what Hilbert +% %% desired +% %% in statements $*$ and $**$ an be +% %% positively achieved. +% %% +% The current article will +% %show, however, +% suggest, +% however, +% % that +% some Type-NS arithmetics are +% % , however, +% % significantly +% %% substantially +% more far-reaching +% than +% previously +% anticipated. Thus, a +% % well-defined +% {\it +% partial but non-trivial} fragment of what Hilbert +% and G\"{o}del +% % sought +% % referred to +% anticipated +% in +% statements +% $*$ and $**$ will +% % be formally achieved +% % become tempting +% look +% % be +% viable +% under Definition \ref{def-2.4}'s formalism. + + + +\end{document} + +% \textsextion + +%\setlength{\textwidth}{5.0 in} + +\gvxs + +Line 1 + + +Line 1 + + +Line 1 + + +Line 1 + + +%% eeeeee + +\newpage + +A theme of this article will be that +% distinction +the distinguishing +between questions Q-1 and Q-2 and +the separation of Observables from +Unobservables +is +related +% likely central +to the mystery +% that has enshrouded +enshrouding +the Second Incompleteness Theorem. +This is +%is germane to the aspirations of automated theorem proving +%will be germane to this article +because there +%is no doubt +can be no doubt that +% can be no question +%%%%%%%% that +the Second +Incompleteness Theorem is fully +robust +% result +from a purist +%pristine +mathematical perspective. +Yet, +it is still problematic to fully +% +% simultaneously +% % at the same time, +% it is +% hard to +% entirely +% +dismiss + Hilbert's 1926 +suggestion that + some +specialized forms of logics should +%declaration +%% +%% concerns +%% in $\,*\,$ +%% that +%% {\it ``the honor of human understanding''} +%% requires +%% examining +%% % explaining +%% % considering +%% how logic systems can +%% +possess +a type of well-defined + knowledge about their +own +internal +consistency. +(This is because it is +highly + awkward to explain how and why +human beings +are able to +%can +%manage to +motivate +their +%cogitations, +cognitive process, +% themselves to think, + if they do not own +some type of +% instinctive +internal +knowledge about their own + consistency.) + +% sufficient +% % enough +% knowledge about their +% % own +% internal +% consistency +% to motivate +% cognition. + +% Bad change above +%cogitation. +% themselves to cogitate. + +%%It is also +%%especially +%%% very +%%tempting +%%to divide Hilbert's Year-1900 +%%Open Question into its Q-1 and Q-2 separate parts +%% during the 21st century, +%%as computers share with humans cogitative abilities. +%% +%%Maybe DELETE above sentence ??? +%\end{remm} + +% \baselineskip = 1.8 \normalbaselineskip + +\smallskip + +The next +section will +formalize our +% new + proposed IQFS formalism. +% +% describe our +% 2-part +% conjecture about how +% %a +% Double-Formatted Logics are +% likely to +% %produce some +% cast +% new perspectives +% on +% this topic. +% %the nature of the Second Incompleteness Theorem. +% +Before starting this subject, it should be mentioned +that other unusual interpretations of the Second Incompleteness +Theorem have followed +from Gentzen's perspectives about +transfinite induction +under his $\epsilon_0$ ordinal +\cite{Ge36,Ta87}, the +%% +%% +%% explore +%% how \cite{wwapal}'s results for a Single-Formatted logic +%% can be revised +%% % with our new $~\zzthe~$ function +%% under a +%% +%% Before +%% broaching +%% this topic it should be mentioned that +%% %0fascinating +%% other approaches to +%% %efforts to partially +%% the Second Incompleteness Theorem +%% % do +%% have centered around +%% + Kreisel-Takeuti's ``CFA'' +system \cite{KT74} +and also +the {\it interpretational frameworks} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to +our +%% main +%\cite{ww93}--\cite{ww14}'s +methods. +%approach. +They +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Also, +they +%apply to +employ +``cut-free'' logics +(rather +than +a +% preferable +Hilbert-style +deductive +apparatus). +%that +%%%%%%%%%%% explored +%%%%%%%%%%% in +%%%%%%%%%%% \textsection \ref{ss32} ). +%%%we are considering). +%% +%%Instead, CFA uses the +%%special +%%properties of ``second order'' generalizations of Gentzen's +%%{\it cut-free} +%%Sequent Calculus, +%%and +%%the +%%interpretational approach +%%formalizes how some systems +%%recognize their +%% Herbrand consistency +%%on localized sets of integers, +%%which +%%unbeknownst to +%%themselves, +%%includes all +%%integers. +%% +%%%These +% alternate +%%%approaches +Their +%alternate +% very + fascinating +perspective +should +% certainly, + be examined by researchers +interested in the +Second +Incompleteness Theorem, +although +%but +it is +%% +% they are +unrelated to +our particular +% the next section's +%specific analysis of +%%% type of +Hilbert-styled self-justifying effects, +studied in the current article. + + +%% systems +%% formalizing +%% %verifying +%% their +%% own consistency +%% %%%%%Definition \ref{def-2.2}'s +%% %%% approximate +%% under +%% Hilbert-styled +%% deduction. + + +%deduction. +% Hilbert deduction. + +%methods. +%formalism. + + +%% It is, +%% % They +%% %are, +%% however, not germane to the next section's +%% perspective. + +%methodology. +%main formalisms. +%methods. +%results. + + % \baselineskip = 1.8 \normalbaselineskip + +%\section{ +%\small +%Improving \cite{wwapal}'s Results with a +%``Double-Formatted'' Logic } + +\newpage +xxxxxxxxxxx + diff --git a/nachlass/collected_dew_materials/2011-2019/wollic-2019.bak b/nachlass/collected_dew_materials/2011-2019/wollic-2019.bak new file mode 100644 index 0000000..30cb459 --- /dev/null +++ b/nachlass/collected_dew_materials/2011-2019/wollic-2019.bak @@ -0,0 +1,2622 @@ +% 2019 feb24 8am while listeing to jazz +% 1019 feb22 1am 1-word change +% 2018 feb-17 11.30 pm while listenning to Bobby Dee + +%% seth and I agrred to meet on thursday 3pm + + +\documentclass{llncs} +\usepackage{amssymb} + + +\newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + + \newenvironment{#1}{\begin{#1q}\rm}} + + + + + + + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + + + +\def\iii{IS$_D(\aaa)$} +\def\I2{IS$^{\#}_D(\beta)$} +\def\ik3{IS$^{\#}_D(\beta_{A,i})$} + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\begin{document} + + + \title{On the Breadth and +Also + Limitations of the + Second Incompletenss +Theorem} + + +\def\aaa{\beta} +\def\ccc{Class} + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + +\author{ Dan E.Willard} + + +\institute{University at Albany Computer Science and Mathematics Departments} + + +\maketitle +\pagestyle{plain} + +%\bigskip + + +\normalsize + +\begin{abstract} +%%% large \baselineskip = 2.4 \normalbaselineskip +This article will investigate several quite similar-looking + axiom systems that seek to confirm +their own consistency via the use of +self-referencing axiomatic +statements, roughly declaring that +{\it ``I am consistent''}. +Surprisingly although our +two main + investigated formalisms will differ only +slightly in the fine print of their particular + definitions, +one among these systems will be consistent, while +the other +is inconsistent. +This result will clarify +both +the breadth and +limitations + of the Second Incompleteness Theorem. +It will also have practical consequences. + +\end{abstract} + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\hgskip{ \medskip } + +\def\njp{\newpage} +\def\njp{ } + +\def\nskip{\bigskip} + + +%\Large +%\baselineskip = 2.07 \normalbaselineskip + + \large \baselineskip = 1.5 \normalbaselineskip +% \large \baselineskip = 2.3 \normalbaselineskip +%\Large \baselineskip = 1.9 \normalbaselineskip +%% \LARGE +\normalsize \baselineskip = 2.6 \normalbaselineskip +\Large \baselineskip = 2.6 \normalbaselineskip + +\large \baselineskip = 2.6 \normalbaselineskip + + + \normalsize \baselineskip = 1.0 \normalbaselineskip +\parskip 1pt + +% \normalsize \baselineskip = 3.0 \normalbaselineskip +%%% \normalsize \baselineskip = 3.4 \normalbaselineskip + +% \large \baselineskip = 3.0 \normalbaselineskip + \normalsize \baselineskip = 2.22 \normalbaselineskip +% \large \baselineskip = 2.22 \normalbaselineskip +\normalsize \baselineskip = 1.77 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip + + +\section{Introduction} +%11111 +\setcounter{section}{1} + + + +We have published a series of papers about generalizations and +boundary-case exceptions to the Second Incompleteness +during the last 25 years +% cite {????}, +\cite{ww93,ww1,ww2,ww5,wwapal,ww6,ww7,ww9} +including six papers that have appeared in the JSL and APAL. +Our goal in the current article will be to focus on +\cite{ww5}'s + IS$_D(\beta)$ + formalism. +It was shown in + \cite{ww5} +that if $\beta$ denotes any consistent extension of +Peano Arithmetic and if $D$ denotes semantic tableaux deduction, +then IS$_D(\beta)$ +will be a consistent axiom system that +can simultaneously prove isomorphic analogs of all of +Peano Arithmetic's $\Pi_1$ theorems while also corroborating +its own consistency under semantic tableaux deduction. +The current article will show, surprisingly, that if one changes the +definition of $D$ in a relatively minor manner, corresponding +to what we shall call {\it ``Extended Semantic Tableaux'',} then +the resulting modification of + IS$_D(\beta)$ will +become inconsistent (and thus + useless). + +This result +% does +will + not lessen +the significance of + \cite{ww5}'s prior result. +It +%does, +will, + however, +% will +clarify +its +basic + theoretical meaning. +% of \cite{ww5}. +Most of +our current discussion +will +% shall + be addressed to an audience +of theoretical logicians, but +% an important short +a brief +3-page passage + (in Section \ref{sect5}) +will explain +how some related +future + AI software could +plausibly relieve +% section +% two pages + global warming. +It +%This latter discussion + will suggest the contrast +between our positive and negative results, +together with +future +results +developed +by other + logicians, + should help +significantly +% fine-tune +refine + future artificially intelligent software +systems +that seek to ameliorate the +harmful + effects from global warming. + + +The author of this article has now reached the retirement age of 70. +We +hope + this article +will be written +in a style that encourages +other +logicians to investigate +its subject further. +%With such a goal in mind, +We will strive to make this paper +comprehensible to a +broad audience, and we +shall + briefly discuss its +pragmatic significance. + +\section{General Perspective} +\label{sect2} + +%%22222 + +It is well known that +G\"{o}del's Incompleteness Theorem +is a 2-part result. +Its +first half specifies no decision +procedure can identify all +arithmetic's + true statements. +On the other hand, the + ``Second Incompleteness Theorem'' + assures that +sufficiently strong +logics +{\it cannot} verify their own consistency. +G\"{o}del +was careful to insert +a + caveat +into +his +%%!! historic +paper +\cite{Go31}, +indicating +a +{\it +diluted} +form +of Hilbert's Consistency Program +might +meet some success: +\begin{quote} +$*~$ {\it ``It must be +expressly +noted +Proposition XI'' +{\rm (e.g. the Second Incompleteness Theorem)} +``represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and { there might +conceivably be finite proofs} which cannot +be stated in P or in ...''} +\end{quote} +Some +scholars +have interpreted +$\,*\,$ +as, possibly, +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialectica interpretation. +On the other hand, +%%d the Stanford Encyclopedia's +%%d entry about G\"{o}del +%%d quotes him, +%%d in its +%%d Section 2.2.4, +%%d stating +%%d he was hesitant to +%%d view the +%%d Second Incompleteness Theorem +%%d as +%%d fully +%%d ubiquitous, until +%%d learning +%%d of Turing's +%%d work. +%%d Moreover, +% +Yourgrau's biography of +G\"{o}del \cite{Yo5} +indicates +von Neumann +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +Also, it is known + \cite{Da97,Go5,Yo5} +that +G\"{o}del +had initially +presumed his +second theorem +was false, before +he had + proved his stunning +result. + +It is, of course, obvious that +the Second Incompleteness Theorem has forced +the objectives of Hilbert's Consistency Program +to be radically reorganized. For instance, +G\"{o}del gave a +1933 + lecture \cite{Go33}, +where he +told his audience +that +Hilbert's +initial +1926 objectives +had + {\it ``unfortunately''} +no +{\it + ``hope of succeeding along''} +its originally intended plans. +Yet +despite this fact, + Gerald Sacks (who +interacted +% extensively +with +G\"{o}del, + during the early 1960's + at the Institute for Advanced Studies) +recalls \cite{YouSa14} +G\"{o}del declaring, +{\it thirty years after \cite{Go31}'s publication,} +that a type of +partial +revival of Hilbert's Consistency +Program, using at least Gentzen's approach, +should be considered (see the below footnote +\footnote{\label{f2} +Some quotes from Sacks's +YouTube talk +\cite{YouSa14} + are that G\"{o}del + {\it ``did not think''} +the objectives of Hilbert's Consistency Program +{\it ``were erased''} +by +the Incompleteness Theorem, and +G\"{o}del believed (according to Sacks) +that it left + Hilbert's program +{\it ``very much alive and +even more interesting than it initially was''}. +} +for a summary of + Sacks's observations). + +The research that has followed + G\"{o}del's seminal 1931 discovery has + focused mostly +% mainly +on studying generalizations of the Second Incompleteness +Theorem +(instead of also viewing its + boundary-case +exceptions). Several generalizations +of the Second Incompleteness Theorem +\cite{AB1,AZ1,Be17,Be14,BS76,Bu86,BI95,Fe60,Fr79a,Ha11,HP91,KT74,Pa71,PD83,Pa72,Pu85,Pu96,So94,Sv7,Vi5,WP87,ww1,ww2,wwapal} +are quite beautiful. The author of this paper has been + especially impressed by a generalization of the +Second Incompleteness Effect, arrived at by the +combined work of Pudl\'{a}k and Solovay, +abetted by +the research of + Nelson and Wilkie-Paris\cite{Ne86,Pu85,So94,WP87}. +These results, which + also have been more recently +discussed + in \cite{BI95,Ha7,Sv7,ww1}, +have noted the Second Incompleteness Theorem +does not require the presence of the Principle of Induction +to apply to most formalisms that use a Hilbert-style form of +deduction. (The +next chapter will offer a detailed summary of this +important generalization + of +the Second Incompleteness Theorem in +its +% the paragraph called + Remark \ref{nremm-2.5}.) + + +Our research, during the last 25 years has +had a different focus, +exploring +Boundary-Case exceptions to the Second Incompleteness Theorem +with equal intensity as +its generalizations. +It would be natural for many readers to ask why such +exceptions should also be studied +with +%such +fully +equal intensity? + +One reason is that while generalizations of the Second Incompleteness +Theorem are pure +%%seth form +from +a mathematical standpoint, it must +not be forgotten that +our civilization +must confront +ecological issues + in the future, more important + than how to devise short proofs for the existence +of a +large number +that cannot be easily encoded in a binary format, + such as +a googolplex $= \,2^{2^{100}}$. + + +The current paper will explore +G\"{o}del's +% underlying +motivation for making his + statement $*$ and +Hilbert's +% similar +closely +related famous + declaration + $**$ from + \cite{Hil26}: + +\begin{quote} +$**~$ +{\it `` +Let us admit that the situation in which we presently +find ourselves with respect to paradoxes is in the long +run intolerable. Just think: in mathematics, this paragon of +reliability and truth, the very notions and inferences, +as everyone learns, teaches, and uses them, lead to absurdities. +And +where +else +would +reliability and truth be found +if even mathematical thinking fails?''} +\end{quote} +A surprising facet of both $*$ and $**$ is that our short 3-page +discussion + (in \textsection \ref{sect5}), +about how to ameliorate the effects of global warming, +will be related +to Hilbert's and G\"{o}del's + predictions, about the +underlying + importance of +boundary-case exceptions to the Second Incompleteness +Theorem. + + +\section{ Notation for Introducing Main Formalism} +%% 333333 } + +\label{nnn2} + +Let us +call an +ordered pair $(\alpha,D)$ a + {\bf Generalized Arithmetic Configuration} +(abbreviated as a {\bf ``GenAC'' }) +when its +first and second +components +are +defined +as +follows: +\bee +\item +The {\bf Axiom Basis} ``$~\alpha~$'' +for a + GenAC +%ssss Generalized Arithmetic +will be defined as +the set of + proper axioms +it employs. +\item +The second component ``$~D~$'' of a + GenAC +%ssss Generalized Arithmetic +will represent +the +{\it combination} of its formal rules of inference +with +%its +the + logical axioms ``$~L_D~$'' it employs. +The +term {\bf ``Deductive Apparatus''} will be often +used to refer to $D$. +\ene + +% \cite{End,Fit,HP91,Mend} + + +\begin{example} +\label{nex-2.1} +\rm +This notation +allows us to + conveniently separate the logical axioms +$~L_D~,~$ associated with $( \alpha , D )~$, from +its +``basis axioms'' $\, \alpha \,$. +It also allows one to compare +the various +deductive apparatus techniques +that +have +appeared in the literature. +For instance, +the + $~D_E~$ apparatus, +introduced + in +\textsection + 2.4 of Enderton's textbook \cite{End}, +has + used only modus ponens +as a rule of inference, +combined with a +complicated +4-part schema of logical axioms. +This differs from +the $~D_M~$ , $~D_H~$ and $~D_F~$ approaches of +Mendelson \cite{Mend}, +H\'{a}jek-Pudl\'{a}k \cite{HP91} +and Fitting \cite{Fi96}. +The former two textbooks +employ a simpler set of logical axioms +than $\, D_E \,$, +but they require +two rules of inference +(modus ponens and generalization). +The $~D_F~$ apparatus, appearing in Fitting's textbook \cite{Fi96}, +as well as its predecessor due to Smullyan \cite{Sm95}, +actually employ {\it no logical axioms.} +Instead, +\cite{Fi96,Sm95} + rely upon a +``tableaux style'' method for generating a +%consequently +%complicated +larger number of +rules of +inference. +\end{example} + + +\begin{definition} +\label{ndef-2.2} +\rm +Let +$ \, \alpha \, $ again +denote an axiom basis, +and $ \, D \, $ +designate + a +deduction apparatus. +Then +the GenAC of + $( \alpha , D )$ +will +% shall +be called {\bf Self Justifying} + when +\begin{description} +% \xxitch +% \small + \item[ i. ] one of $~( \alpha , D )$'s theorems +(or possibly one of $\alpha$'s axioms) +does +%will +state that the deduction method $ \, d, \, $ applied to the +basis +system $ \, \alpha, \, $ +%will +produces a consistent set of theorems, and +\item[ ii. ] + the GenAC formalism $ \,( \alpha,D) \, $ is, in fact, +actually consistent. +\end{description} +\end{definition} + + +\begin{example} +\label{nex-2.3} +\label{ex2} +%%%%%%%%%%%%%%%%%%% OLD \label{ex-2.5} +\rm +Using +Definition \ref{ndef-2.2}'s + notation, our +prior + research +% in +\cite{ww93,ww1,ww5,wwapal,ww9} +% has +constructed +%developed +GenAC pairs +% arithmetics +$~( \alpha , D )$ +that + were +``Self Justifying''. +We +also +proved +the Incompleteness Theorem +implies specific +limits beyond which +self-justifying +formalisms +simply + cannot transgress. +For any $\,(\alpha,D) \,$, +it is +thus +easy +%almost trivial +to construct a +system $ \, \alpha^D \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +condition +(in an isolated context {\it where the Part-ii condition is + not also +satisfied}). +For instance, $ \, \alpha^D \, $ could +consist of all of $~\alpha \,$'s axioms plus +the added {\bf $\,$``SelfRef$(\alpha,D)$''$\,$} sentence, +defined below: +%% as stating: +\begin{quote} +% \small +$\oplus~~~$ +There is no proof +(using +$D$'s deduction method) +of $0=1$ +from the {\it union} + of +the + axiom system $\, \alpha \, $ +with {\it this} +sentence ``SelfRef$(\alpha,D) \,$'' (looking at itself). +\end{quote} +Kleene +showed \cite{Kl38} +how +to +encode +% rough + analogs of +the above ``SelfRef$(\alpha,D) \,$'' statement, +which we often call an + {\bf $\,$``I AM CONSISTENT'' +%axiomatic + declarative axiom.} +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71}, +however, + emphasized +% that +$\alpha ^D$ +may +be inconsistent +(e.g. violating Part-ii of self-justification's +definition), +{\it despite SelfRef$(\alpha,D)$'s +formal +assertion.} +This is because if the + pair $(\alpha,D)$ is too strong +then a +quite conventional +G\"{o}del-style diagonalization argument can +be applied to the axiom basis of +$\alpha^D~~=~~ \alpha \, + \, $ SelfRef$(\alpha,D), ~$ +where the added presence of the statement +SelfRef$(\alpha,D)$ +will cause this extended version of +$\, \alpha\,$, ironically, + to + become automatically inconsistent. +Thus, an +encoding for +``SelfRef$(\alpha,D)$'' is relatively easy, +via an application of the Fixed Point Theorem, +but this sentence + is, typically +{\it +utterly +useless!} +\end{example} + +% \bigskip + +\parskip 0pt + + +\begin{definition} +\label{ndef-2.4} +\rm +Let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote two 3-way predicates, specifying + $x+y=z$ and $x*y=z$, +for which the +associative, commutative, identity and distributive +properties have $\Pi_1$ style encodings under an +axiom system of $\alpha$. +Then we will say +that $~\alpha~$ +{\bf recognizes} successor, addition and multiplication +as {\bf Total Functions} iff +it can prove all of +\eq{totdefxs} - \eq{totdefxm} +as theorems: +\end{definition} +% \newpage +{ \small +\baselineskip = .9 \normalbaselineskip +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +%%% \vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + + +\noindent +Furthermore, we will call the GenAC system $(\alpha,D)$ a +% $\alpha$ will be called +{\bf Type-M} +formalism +iff it includes +\eq{totdefxs} - \eq{totdefxm} +as theorems, {\bf Type-A} if it includes +only \eq{totdefxs} and \eq{totdefxa} as theorems, +and {\bf Type-S} if it contains +only \eq{totdefxs} as a + theorem. +%Moreover, +Also, + $(\alpha,D)$ + will be +% is +called +{\bf Type-NS} iff it can prove +none of these theorems. + +\parskip 2pt + +%\bigskip + +\begin{remark} +\label{nremm-2.5} +%% +\rm +The separation of GenAC systems into the four +categories of Type$-$NS, Type-S, Type-A and Type-M systems +will enable us to nicely summarize the prior literature +about generalizations and boundary-case exceptions +for the Second Incompleteness Theorem. This is because: +\bed +\item[ $~~~~$i.$~~$ ] +The combined research of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, +as is formalized by Theorem $\, ++ \,$, +implies no +natural Type$-$S GenAC system $(\alpha,D)$ +can recognize its own consistency +when $D$ is one of +Example \ref{nex-2.1}'s three +examples of + Hilbert-style +deduction operators of +$\, D_E \,$, $\, D_H \,$ +or +$\, D_M ~~$. In particular, +it establishes the following result: +\medskip +\begin{quote} +\normalsize \baselineskip = 1.0 \normalbaselineskip +{\bf ++ } +{\it +(Solovay's +modification +\cite{So94} +of Pudl\'{a}k \cite{Pu85}'s formalism +using some of +Nelson and Wilkie-Paris \cite{Ne86,WP87}'s +methods)} : +Let +$ \, (\alpha,D) \, $ +denote +a GenAC system +supporting +% which contains +the +\el{totdefxs}'s +Type-S statement +and +assuring +the successor operation +will +satisfy +both +% the axioms of + $ \, x' \neq 0 $ and +$ x' = y' \Leftrightarrow x=y $. +$~$Then +$ \, (\alpha,D ) \, $ +%%%%$~\alpha~$ +cannot verify its own +%will be unable to recognize its +%own +consistency +whenever +simultaneously + $D$ is some type of +a Frege-Hilbert +deductive +apparatus and +%whenever +$~\alpha~$ + treats addition and multiplication +as 3-way relations, +satisfying +their usual % identity, +associative, commutative + distributive +and identity +% axiomatic properties. +axioms. +% -axiom +% properties. +\end{quote} +\medskip +Essentially, Solovay \cite{So94} +privately communicated +to us +in 1994 +%to us +an analog of theorem $++$. +%but +Many authors +have noted Solovay + has +been +%often +reluctant to publish +% several of +his +nice +privately communicated +results +on many occasions +%in several contexts +\cite{BI95,HP91,Ne86,PD83,Pu85,WP87}. +Thus, +%polished +approximate analogs of +%statement + $++$ + were explored +subsequently + by Buss- Ignjatovi\'{c}, +H\'{a}jek +and +\v{S}vejdar in \cite{BI95,Ha7,Sv7}, +as well as in Appendix A of +our paper +\cite{ww1}. +Also, +Pudl\'{a}k's initial 1985 article \cite{Pu85} +% implicitly +captured +% , notably, +the majority +%most +%%% much +of $++$'s +essence, chronologically before Solovay's observations, +%Also, + and +Friedman did +% some +related work + in +\cite{Fr79a}. + +\medskip + +\item[ $~~$ii.$~~$ ] +Part of what makes $++$ interesting is that +\cite{ww1,ww5,wwapal} +explored two methods for +GenAC systems +to confirm their own consistency, whose +natural hybridizations are precluded by $++$. +Specifically, these results involve using +Example \ref{nex-2.3}'s +self-referencing {\it ``I am consistent''} + axiom (from its +statement $\oplus$ ). +They will enable +some (not all) + Type-NS +systems \cite{ww1,wwapal} +to verify their own consistency under +a Hilbert-style deductive apparatus +\footnote{ The Example \ref{nex-2.1} had +provided +three examples of + Hilbert-style +deduction operators, called +$\, D_E \,$, $\, D_H \,$ , +and + $\, D_M ~~$. It explained how these + deductive operators differ from a tableaux-style +deductive apparatus by containing a modus ponens rule.}, +or alternatively allow +some (not all) + Type-A + systems \cite{ww93,ww1,ww5,ww6} to +corroborate +their +self-consistency +under a more restricted semantic +tableaux style deductive apparatus. +Also, we observed in \cite{ww2,ww7} how one could +refine $++$ with Adamowicz-Zbierski's +methodology \cite{AZ1} to show + most Type-M systems +cannot recognize their own semantic tableaux style consistencies. +\ennd +\end{remark} + +\begin{remark} +\label{rem2} +Several of our articles have +used +Example \ref{ex2}'s + {\it ``I am consistent''} +axiomatic statement +$~\oplus~$ +% as a vehicle + to evade the Second Incompleteness Theorem. +This methodology is +unrelated to alternate +techniques for evading G\"{o}del's Theorem +that have been explored by +Gentzen in \cite{Ge36}, +Kreisel-Takeuti +in +% the analysis of + their ``CFA'' +formalism \cite{KT74} +and to +the {\it interpretational framework} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +It turns out these latter +systems will not make as broad statements +about their consistency because they do not +make use of +Kleene-like {\it ``I am consistent''} axiom-sentences. +On the other hand, +they will possess a +% much + different +style +% kind +of advantage +because they will provide a more detailed proof +of their consistency than would follow from +statement $~\oplus\,$'s +single-sentence {\it ``I am consistent''} declaration. +\end{remark} + + +\section{More Notation and Main Formalism} +%%mmm + +%%% 444444 + +\label{sect4} + + +A function $F $ +will be called {\bf Non-Growth} +iff +$ F(a_1 \ldots a_j) +\leq Maximum(a_1 \ldots a_j)$ +holds. +Six examples of +non-growth functions are +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +$Maximum(x,y),$ +$ Logarithm(x)$ +$\,Root(x,y) \, = \, \lceil \, x^{1/y} \, \rceil$ and +$Count(x,j)$ designating the number of ``1'' bits +among $ x$'s rightmost $ j $ bits. +The term +{\bf U-Grounding Function} +referred in \cite{ww5} to +a set of +primitives, +that included the +preceding +functions plus the {\it growth operations} of addition and +{\it Double$(x)=x+x$}. +Our language $L^*$ was +built +out of these +symbols, +plus the primitives of +``0'', ``1'', + ``$ \, = \, $'' +and ``$ \, \leq \, $''. + + + + +In a context where $~\, t \, ~$ is any term in \cite{ww5}'s +language $L^*$, +$\,$the quantifiers in the wffs +$~ \forall ~ v \leq t~~ \Psi (v)~$ and $~ \exists ~ v \leq t~~ \Psi (v)$ +were called {\it bounded +quantifiers}. +Any formula in + $L^*$, +all of whose +quantifiers are bounded, was called +a $\Delta_0^*$ formula. +The $~\Pi_n^{* }~$ and $~\Sigma_n^{* }~$ formulae +were +then defined by the +usual +rules that: +\bee +\item +Every +$\Delta_0^*$ formula is considered to +be +``$~\Pi_0^{* }~$'' and +also + ``$~\Sigma_0^{* }~$''. +\item +A +wff +is called + $ \,\Pi_n^{* } \,$ +when it is encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ with +$\Phi$ being $\Sigma_{n-1}^{* }$ +\item +A wff +is called + $\Sigma_n^*$ +when it is encoded as +$\exists v_1 ..\exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{* }$. +\ene +%{\it Also throughout this article,} + Also,$~$ + the sentence $\Psi$ will be called a$~$ {\bf Rank-1* } $~$statement iff it +can be encoded in either a $\Pi_1^*$ +or $\Sigma_1^*$ format. + +Our article \cite{ww5} used the symbol $~D~$ to denote +a deduction method. +There will be three variants of deduction methods +% that we will compare +compared +in this article. The first will be +{\it semantic tableaux}, + which will receive the abbreviated name of + {\bf Tab}. It will be similar to +%%% its analog +% appearing +the tableaux formalism +in Fitting's textbook \cite{Fi96}. +Thus a Tableaux proof of a theorem $~\Psi$ + from an axiom basis +% a set of proper axioms +$~\alpha~$ will be tree-like +structure that begins with the sentence + $~\neg ~ \Psi$ + stored in the tree's root and whose every root$-$to$-$leaf +path establishes a contradiction by containing some pair of contradictory +nodes that ``closes'' its path. The rules for generating internal +nodes along each + root$-$to$-$leaf +path will be that each node +must be either a +% formal +proper axiom of $\alpha$ or a deduction +from an ancestor node via one of the +``elimination'' +rules associated with +our logic symbols of $\wedge$, $\vee$, $\rightarrow$, $\neg$, +$\forall$, or $\exists$. (A precise definition of these six rules +and other details +appears in the attached appendix.) + +\smallskip + +Our second +explored + deductive apparatus +% in this article, +will be called {\it Extended Tableaux}, abbreviated as +{\bf Xtab}. Its definition +will be + identical to the prior +paragraph's {\it Tab-}deduction, {\it except that} for any sentence +$\phi$ +in our language $L^*$, the sentence $\phi \, \vee \, \neg \phi$ +can be permissibly + stored +% inserted +as an axiom +inside + any internal node of our proof tree. +(In other words, {\it Xtab-}deduction +will differ from {\it Tab-}deduction by allowing all instances +of the Law of Excluded Middle to appear as a logical schema of axioms. +In contrast, {\it Tab-}deduction will treat the infinite schema of +instances of the Law of Excluded Middle as +% permissibly +{\it derived theorems,} +{\bf BUT NOT ALSO} as +instances of + logical axioms. + +% \medskip + +Our third +% studied + deductive apparatus +will be called {\bf Tab-1}. +It will be a +% type of + compromise between Tab and Xtab, +% deduction, +where a ``Tab-1'' proof of $\Psi$ from +an axiom basis +$\alpha$ is defined as a set of +ordered pairs $ \, (p_1,\phi_1), \, (p_2,\phi_2), \, .. (p_k,\phi_k) \, $ +where +\bee +\item $ ~ \phi_k ~ = ~ \Psi \,$ +\item +Each $~p_j~$ is a Tab-proof of +what we have called + a Rank-1* sentence +$~\phi_j~$ from the union of $~\alpha~$ with some further Rank-1* axioms +of $~\phi_1,~\phi_2,~..~\phi_{j-1}~$. +\ene +{\bf We emphasize} that Tab-1 is +{\it less efficient} + than Xtab +deduction +because {\it the$ \,$former +requires} $\phi_j$ be a Rank-1* sentence, while Xtab +{\it does not impose} + a similar Rank-1* constraint upon +$\, \phi \,$, when + it +% uses +invokes + an $~\phi \, \vee \, \neg \phi~$ axiom. + + +Let us say that an axiom system $\alpha$ owns a +{\bf Level-1} appreciation of its own self-consistency +(under a deductive apparatus $D$) +iff it can verify +$D$ produces + no two simultaneous +proofs of a + $\Pi_1^*$ +sentence and +its negation. +Within this + context, where $~\aaa~$ denotes any axiom +system using + $L^*\,$'s +U-Grounding language, IS$_D(\aaa)$ +was defined +in \cite{ww5} +to be an axiomatic +formalism capable of recognizing all of +$\aaa$'s $\Pi_1^*$ theorems and +corroborating +its own Level-1 consistency under $D$'s deductive method. +It +consisted of the +following four +groups of axioms: +\begin{description} +\item[Group-Zero:] +Two of the Group-zero axioms will define +the +constant-symbols, +$\bar{c}_0$ +and $\bar{c}_1$, +designating the integers of 0 and 1. +The +Group-zero axioms +will +also define the +growth functions of addition and +$~Double(x) \, = \, x+x.~$ +(They will enable our formalism to +define +any +integer +$~n \geq 2~$ +using fewer than +$3 \cdot \lceil \, $Log$~n~ \rceil \,$ +logic symbols.) + +\item[Group-1:] +This axiom group will consist of a +finite set of $\Pi_1^{*} $ sentences, denoted as $~F~$, which +can prove any $\Delta_0^*$ sentence that +holds true under the standard model of the natural numbers. +(Any finite set of +$\Pi_1^{*} $ sentences $~F~$ +with this property +may be used to define Group-1, +as \cite{ww5} had noted.) + + + +\item[Group-2:] +Let $\ulxyz \Phi \urxyz$ denote +$\Phi$'s G\"{o}del Number, and +HilbPrf$_\aaa(\ulxyz \Phi \urxyz,p)$ denote a +$\Delta_0^{*} $ formula indicating +$~p~$ is a +Hilbert-styled proof of +theorem $~\Phi~$ from +axiom system $\aaa$. +For each $\Pi_1^{*} $ sentence $\Phi$, the +Group-2 schema will contain an axiom of +form \eq{group2}. +(Thus IS$_D(\aaa)$ can trivially prove + all $\aaa$'s +$\Pi_1^{*} $ theorems.) +\begin{equation} +\forall ~p~~~\{~ \mbox{HilbPrf$_\aaa(\ulxyz \Phi \urxyz,p)$} + ~~ +\Rightarrow ~~ \Phi~~\} +\label{group2} +\end{equation} +\item[Group-3:] +The final part of IS$_D(\aaa)$ +% shall +will +be a +self-referencing +$\Pi_1^*$ +axiom, +that indicates +IS$_D(\aaa)$ +is +``Level-1 consistent'' +under + $D$'s deductive method. +It +is, +thus, the following declaration: +\begin{quote} +\# $~${\it No two +proofs exist +for +a $\Pi_1^{*} $ sentence +and its negation, when +$D$'s deductive method is applied to an axiom system, +consisting of +the {\it union} +of +Groups 0, 1 and 2 with {\bf $\,$this sentence$\,$} +(looking at itself).} +\end{quote} + +\smallskip +One encoding of \#, +$\,$as a self-referencing +$\Pi_1^{*} $ +axiom, +had appeared + in +\cite{ww5}. +Thus, +\eq{group3} +is a +$\Pi_1^{*}\, $ styled +encoding for$~$ + \# +$~$when: +$~~1)~~ \, \mbox{Prf} \, _{\mbox{IS}_D(\aaa)}(a,b) \, $ is +a + $\Delta_0^{*} $ formula +indicating +that +$ \, b \, $ is a proof + of a theorem $\, a\,$ +under + $\mbox{IS}_D(\aaa)$'s axiom system +and $D$'s deduction method, +$\,~$and $~~2)~~$Pair$(x,y)$ is a $\Delta_0^{*} $ formula +indicating +that $ \, x \, $ is a + $\Pi_1^{*} $ sentence +and that + $ \, y \, $ +represents +$ \, x \,$'s negation. +\end{description} +\begin{equation} +\forall ~x~\forall ~y~\forall ~p~\forall ~q~~~~ \neg ~~ +[~~ \mbox{Pair}(x,y)~ \wedge ~ +~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(x,p)~ +\wedge ~ ~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(y,q)~ ] +\label{group3} +\end{equation} + +%%%%% \parskip 2pt +%\smallskip + +\begin{definition} +\label{def3} \rm +Let $~D~$ denote +any one of + the {\it Tab, Xtab} or +{\it Tab-1} + deductive methodologies. +We will say that +the mapping $\mbox{IS}_D(~\bullet~)$ + is +{\bf Consistency Preserving} + iff + $\mbox{IS}_D(\aaa)$ +is guaranteed to be consistent +under $D$'s deductive apparatus +whenever all the axioms of $\aaa$ hold +true under the standard model of the natural numbers. +\end{definition} + +%\smallskip + + + +%%%%% 66666 NEW PASSAGE + +\begin{theorem} +\label{th1} \rm +The $\mbox{IS}_{\it Tab}(~\bullet~)$ +and $\mbox{IS}_{\it Tab-1}(~\bullet~)$ +mappings +are +consistency preserving, but the similar-looking + $\mbox{IS}_{\it Xtab}(~\bullet~)$ mapping +is actually not{\it $~~$. This +statement + is + formalized by the +% formalized, more precisely, by the +Items (a) and (b) below:} +\bed +\item[ a. ] + $\mbox{IS}_{Tab}(\aaa)$ +and +$\mbox{IS}_{Tab-1}(\aaa)$ +are always consistent +whenever all the axioms of $\aaa$ hold +true under the standard model + of the natural numbers. + +\smallskip + +\item[ b. ] +In contrast, + $\mbox{IS}_{Xtab}(\aaa)$ +is {\it automatically inconsistent} +whenever +$~\beta~$ +proves +the +%some + conventional $\Pi_1^*$ theorems +showing +%that + addition and multiplication +satisfy +their +associative, commutative, + distributive +and identity +properties. +% principles. +\ennd +\end{theorem} + +{\it Proof Summary:} +The two halves of Theorem \ref{th1}'s +proof would be quite lengthy, if +% we used +%%% had to rely on +first principles +were used + to justify +them. +Fortunately, there is an easier method to +justify +(a) and (b), +% Theorem \ref{th1}'s two them +by relying upon the earlier literature. + +% \parskip 2pt + +Thus, Part (a) follows +from our + main +result +in \cite{ww5}. + It +indicated $\mbox{IS}_{\it Tab-1}(~\bullet~)$ +was a consistency preserving +%%%% mapping, and this implies + mapping. This implies +that $\mbox{IS}_{\it Tab}(~\bullet~)$ +is also consistency preserving +because Tab-deduction is weaker than Tab-1. + + +Let us now turn our attention to +Theorem \ref{th1}'s second +claim (b). +Its proof is more complex but analogous to the +justification for the Invariant + ++ , which +Remark \ref{nremm-2.5} +% had +attributed +mostly to + the work +of Pudl\'{a}k. Solovay, Nelson +and Wilkie-Paris. The +crucial aspect of the Frege-Hilbert methodologies +employed by ++ is that modus ponens assures that +a proof of a theorem +$\psi$ +from an axiom system $\alpha$ has a length no +greater than the sum of the proof-lengths needed to derive + $\phi$ and $~\phi \rightarrow \psi~$ from +$\alpha$. This +{\bf ``Linear-Sum Effect'' +} + does not apply, +%% technically, +actually, +also to +{\it Tab-}deduction because it owns no analog of +a modus ponens rule (for assuring that +$\psi$'s proof-length is bounded by the sum of the +lengths for the proofs of + $\phi$ and $~\phi \rightarrow \psi~$) . + +The {\it Xtab} +%%deductive +methodology, however, + differs +from +{\it Tab-}deduction +by allowing any node of its proof-tree +to store a sentence of the form $~ \phi \, \vee \, \neg ~\phi~$, +as an application of its allowed use of the Law of Excluded +Middle. +This added feature allows an + {\it Xtab} proof for +$\psi$ to have a length +%% be bounded approximately +proportional to + the sum of +the proof lengths for + $\phi$ and $~\phi \rightarrow \psi~$. In particular, +the relevant + {\it Xtab} proof for +$\psi$ +can be summarized as having the following 4-part structure: +\bee +\item +The root of the proof of $\psi$ +will be the usual temporary negated hypothesis of + $~\neg \psi~$ (which the remainder of the proof tree will +show is impossible to hold). +\item +The child of this +root +node will be an allowed invocation of the +Law of the Excluded Middle of the + form $~ \phi \, \vee \, \neg ~\phi~$. +\item Our tableaux proof tree will next employ +the Appendix's branching rule for allowing the two +sibling nodes of + $~ \phi ~$ + and $~ \neg ~\phi~$ to descend from +Item 2's node. +\item +Finally, our tableaux proof will insert below +(3)'s left sibling node +of $~ \phi ~$ a subtree structure that is no longer than +the proof of $~\phi \rightarrow \psi~$, +and likewise +insert + a proof for $~\phi~$ +below (3)'s right sibling +%%%%%%% node +of $~ \neg ~\phi~$. +\ene +The point is that the last step of our 4-part proof +has a length no greater than the sum of the two + proof lengths for + $\phi$ and $~\phi \rightarrow \psi~$, +and its first three steps have inconsequential lengths +that will increase +its + overall proof length by no +more than an unimportant +amount proportional to the length of the +sentence ``$~\phi ~ \rightarrow ~\psi~$''. + +%%%8888888888888 + +%%{sect2} + +We can apply +the preceeding + ``Linear-Sum Effect'' +to construct an analog +of Remark \ref{nremm-2.5} 's +earlier Theorem $\, ++ \,$ +germane to + Extended Tableaux deduction (which is also called ``Xtab''). +Saving +several +%the +details +for a longer paper, +the intuition +behind this analog is that modus ponens + {\it is the only + rule of inference} used + by +the classic + \cite{End}'s textbook-style +% classic +first-order logic system, + and +Xtab can +% that Xtab +% can +% thus + use its + Linear-Sum Effect + to simulate modus ponens. +This natural analog of + $++$ will +%%%% then +%% thus +assure +%% that +any axiom system $~\cal{A}~$ is +% then + {\it automatically inconsistent} whenever: +\begin{enumerate} +\item +$\cal{A}$ + can verify Successor is a total function (as formalized +by \el{totdefxs} ), +\item +$\cal{A}$ +can prove +%%% +%%% proves +%%% $\Pi_1^*$ theorems +%%% %%% showing +%%% that show +%%% + addition and multiplication +satisfy +their usual +associative, commutative, + distributive +and identity axioms. +\item +$\cal{A} \,$ +proves +an added + theorem (which turns out to be false) affirming its own +consistency when the +Xtab + deductive apparatus is used. +\end{enumerate} +The preceding observation completes +Theorem +%%% \ref{th1}'s +1-b's + proof because + $\mbox{IS}_{Xtab}(\aaa)$ +meets +% satisfies +all three of these +requirements. +%% ?????? (see footnote). +$~~~\Box$ + + + +\begin{remark} +\label{rem3} \rm +We +have +deliberately resisted the temptation of providing a more +elaborate proof of Theorem \ref{th1}, +beyond the above +summary +in this +% current + extended abstract. +This is because +it is desirable + to reserve +%%% three pages of space +page space + for explaining +how Theorem \ref{th1} (and other aspects of symbolic logic) +can help + biologists, chemists, physicists and mathematicians +develop formal Artificial Intelligence mechanisms +for +% alleviating +relieving$~$the harmful effects +from global warming. +\end{remark} + + +\parskip 1 pt + + +The contrast between the positive and negative results +of Theorem \ref{th1}'s two claims will +be central to the next section's discussion. +Although the topic of global warming was +essentially + unknown +to the world of the 1920's and 1930's, +the next section will show +that + the often quoted statements +$*$ and $**$, of G\"{o}del and +Hilbert, +%%%%%%%%% Hilbert +do gain +some +new +interpretations. + +%END OF NEW PASSAGE + + + + + +\section{An Application of Theorem \ref{th1} +Germane to Diminishing the Damage +Caused by Global Warming} + +% \large \baselineskip = 1.5 \normalbaselineskip +%%%555555555555555 +\label{sect5} + +We +%did become +became + aware about +how the hard-core sciences of + biology, chemistry, and physics could use concepts +from Symbolic Logic (such as Self-Justification) +to alleviate the effects of global warming +after +reading several +% quite +alarming + Year-2017 interviews of +the late physicist Stephen Hawking +\cite{Ha17a,Ha17b}. +In those interviews, Hawking +% has +%joined + did join +a growing team of scientists +concerned that if current trends continue, then +global warming could cause the planet Earth to become too hot +for mammals to survive, within one or two centuries. +(Hawking actually states +%that +the extinction of all mammal species could + occur +as early as +% even + within ``100 years'', +but we would prefer to +optimistically + hope that there is, at least, +an available 200-year window in time before the most tragic results +%will +occur, if indeed they cannot (?) be +prevented.) +%avoided.) + +Hawking has +%also +hinted that computers, employing various forms +of Artificial Intelligence (AI), could be +one part of +% the +a +reply + to global warming's +emerging challenge +(if AI can {\it somehow} be handled (?) adeptly). +The + two advantages of computers +over humans are that computers +can produce +deductions more quickly, and they can +be engineered to + survive +in environments that are inhospitable for humans. +For example, computers do not need Oxygen as a vital energy +supply. They could, thus, rely upon solar power when residing +on the Moon or Mars, and they could +possibly survive + underneath the Earth's oceans +(assuming the latter do not evaporate under intense heat). + +% \parskip 0pt + +We want to keep this chapter brief and avoid +too much speculation. +The main point is +% to suggest + that +AI-oriented + computers could possibly offer a +partially positive outcome to a global warming +crisis by employing a 2-part strategy where: +\bee +\item +AI-based computers +will +first take complete control over +the planet's +destiny, +if +(?) +humans are rendered +temporarily +extinct by global over-heating. +\item +AI-based computers +could then + subsequently restore human and +perhaps +other +higher +life forms on Earth after the planet returns +\footnote{This +footnote is a +tentative remark, but bacteria are known to be a much +more durable species than mammals, which are capable of +surviving under very high temperatures and also able to +undergo +astonishingly +speedy evolutionary changes and adaptations. +A new species of bacteria can hopefully +(?) be +engineered, +{\it perhaps with the assistance of computers,} that +can hopefully pull greenhouse gasses out of the atmosphere +and lower the temperature on Earth over +a spam of perhaps +%1,000 years. +several decades +Frozen samples of primate embryos and accompanying stored +DNA molecules, could then be used to restore human life +on Earth.} +to a cooler state and stored frozen embryos and DNA samples +%were +have been + previously (?) saved. +\ene +This methodology will be called a {\bf 2-Prong Strategy.} +%We have no doubts its +%The author of this article has no doubt that +Its two parts +will, clearly, make +some readers cringe with +discomfort. One should, however, +% take some measures to +prepare for +% plausible + worst-case +scenarios, {\it + in case +such +paradigms +% circumstances + arise? } +The next two pages +% , thus, +will +% explain particular +focus on + its +% very +special +% details germane to +implications for +symbolic logic. + + + +\begin{example} +\label{main-ex} +\rm +%%%% eeeee +%During our current discussion, +%let us have +Let + $\, \beta \,$ denote +some +% particular +consistent formal axiom +basis +% formalism +% that has been selected to +that can +prove a substantially +broader + set of $\Pi_1^*$ theorems than some +% fixed +conventional axiom system +(such as +% perhaps +Peano Arithmetic or ZF Set Theory). +Let us consider +using Artificially Intelligent (AI) +% systems +computers +to combine the formalisms +of the preceding 2-Prong +methodologies + with +% that of +Theorem \ref{th1}. +Then +% the +a +% preceding paragraph's +2-Prong Strategy may +potentially use any one of + $\mbox{IS}_{Xtab}(\aaa)$, + $\mbox{IS}_{Tab}(\aaa)$, + $\mbox{IS}_{Tab-1}(\aaa)$ or say Peano Arithmetic (PA) +as its core invoked AI decision mechanism. +A +comparison between these four +% quite different AI + variations of + 2-Prong methods +% does +will + reveal that: +\bed +\item[ a. ] +Although the $\mbox{IS}_{Xtab}(\aaa)$ formalism may look +superficially similar to + $\mbox{IS}_{Tab}(\aaa)$ and + $\mbox{IS}_{Tab-1}(\aaa)$, +it is +actually +% entirely +unacceptable as a +%formal + core invoked AI +% mechanism, +formalism +used by a 2-Prong strategy. This is +because Theorem 1-b +indicates +% that + $\mbox{IS}_{Xtab}(\aaa)$ +is inconsistent. +It will thus cause a 2-Prong strategy to make +unacceptably false decisions +\footnote{ A surprising aspect of + $\mbox{IS}_{Xtab}(\aaa)$'s faulty behavior is that its Group 0, 1 and 2 axioms +are identical to those of + $\mbox{IS}_{Tab}(\aaa)$ and + $\mbox{IS}_{Tab-1}(\aaa)$. +Thus, + $\mbox{IS}_{Xtab}(\aaa)$'s unacceptable behavior +is solely because of its Group-3 {\it ``I am consistent''} +axiom. \smallskip} +when it uses +$\mbox{IS}_{Xtab}(\aaa)$ as its core AI mechanism. + +\smallskip + +\item[ b. ] +In a context where $\beta$ has been chosen to be an axiom basis that +proves a richer set of $\Pi_1^*$ +theorems than Peano Arithmetic, PA +is +substantially + less desirable +as a 2-Prong Strategy's +%core +main + AI +decision +system than either + $\mbox{IS}_{Tab}(\aaa)$ or + $\mbox{IS}_{Tab-1}(\aaa)$ +would be. +This is +partly + because PA produces a weaker set of + $\Pi_1^*$ theorems than the latter + two +systems. +From our perspective, +a more important drawback of PA +is that it is +substantially +less adept when it is +{\it formally unable} to confirm its own consistency. + +\smallskip + +\item[ c. ] +Although both the + $\mbox{IS}_{Tab}(\aaa)$ and + $\mbox{IS}_{Tab-1}(\aaa)$ formalisms +may be used as the core AI mechanism for +our 2-Prong Strategy, +there are important distinctions +between these two mechanisms. This is because + $\mbox{IS}_{Tab-1}(\aaa)$ +uses a more sophisticated form +of a Self-Justifying + Group-3 {\it ``I am consistent''} +axiom than + $\mbox{IS}_{Tab}(\aaa)$. +(More generally, +there is probably no +% maximally + best form of Group-3 axiom +that a 2-Prong Strategy can +gainfully +employ. +For instance, + it is +evident + (see footnote +\footnote{For instance, + $\mbox{IS}_{Tab-1}$ can be beneficially hybridized with +\cite{ww1}'s +Tangibility + reflection principle, but we won't go into the +% germane +details here. +} ) +that +there do exist partially +stronger forms of + Group-3 {\it ``I am consistent''} +axioms +than those +used +% applied besides those invoked + by + $\mbox{IS}_{Tab-1}(\aaa).~~)$ +\ennd +\end{example} + +\parskip 0pt + +\begin{remark} +\label{rem4} +\rm +The central issue raised by this chapter's +2-Prong Strategy and the preceeding Example \ref{main-ex} +is +that + the dangers +posed by global warming +{\it would be tragic +but NICELY only temporary,} +%{\it temporary inconvenience}, +if robots and computers can reverse +global warming after a period of +several + thousand years. In contrast, +the implications of global warming would be +% much +far + more +severe, +% tragic, +if either it cannot be reversed or no frozen embryos +%% of mammals (and primates) +are saved so that the 4-billion-year cycle of life +on Earth can +resume +% restored +after global warming subsides. +(We do not dismiss +the hopeful +prospect +%point + that a theoretical temporary +over-heating of the planet can possibly be avoided, +but one + {\it should also not overlook} the +possibility + that some variant of a +2-Prong Strategy may become necessary, if Mankind does not +act quickly enough ? ) +This article has, thus, been written to encourage a +more direct +dialog +% to take place +between various subfields of Logic +with the hard-core +sciences of + biology, chemistry, physics and mathematics. +Its goal +will be +to discover what kinds of AI mechanisms can best reply to the +challenges posed by global warming. +% {\it if (?) they are needed !} +\end{remark} + +\begin{remark} +\label{rem5} +Lastly, let us +% should +%address +consider +how G\"{o}del's Second Incompleteness +Theorem +should be +% likely +viewed + by a broad +community + of scientists. +% working in a +% diversity of different fields. +This topic is +% quite + subtle because the Second +Incompleteness +Theorem is +undoubtedly + a seminal result that was further strengthened +by many of G\"{o}del's +% subsequent +successors. +But yet like many +other + mathematical +results, the Second Incompleteness Theorem also owns +{\it some types of +partial +limitations?} +%disadvantages? } +% limitations?} +....Thus, we should + remind ourselves that + G\"{o}del +% had +% firmly +held out the possibility +in +% his historic paper + \cite{Go31} +that some +type of partial fulfillment of Hilbert's goals + would +% ultimately +be achieved +(see again G\"{o}del's quoted +statement of$~*~ ).$ +Moreover, + Gerald Sacks in his + Year-2014 +YouTube lecture +(see +\cite{YouSa14} +and our +earlier +%inserted +% particular + footnote \ref{f2} ) +has recalled hearing +G\"{o}del {\it repeating} +% related +similar + comments +about the +importance + of + continuing + Hilbert's program + during the +% early +1960's. +%%% (This was {\it thirty years} after \cite{Go31}'s seminal publication,) + The main point is +that + a 2-Prong methodology, +permitting + an AI-based +computer +%system +% has taken, +% takes +to take temporary +%temporarily, complete +control over +%the planet's +planet Earth's +destiny, {\it should +%inherently +%substantially +ultimately be +more efficient when +it +% such +% a formalism +is allowed +to presume its own consistency}. +% +%(similar to what humans commonly do). +% +%% (as humans +%% seem to +%% have +%% % currently +%% informally +%% done during their intuitive thought processes). +%% +These observations +will + lead to +significantly + new interpretations of +G\"{o}del and Hilbert's statements $*$ and $**$. +\end{remark} + +%%% \parskip 4pt + +% \LARGE \baselineskip = 2.0 \normalbaselineskip + +%6666666 + +%999999 + +In essence, +several research projects in + symbolic logic should +be undertaken that interact with +the core sciences +of biology, chemistry and physics +%and Mathematics +to collectively address the +% fundamental +challenges + posed by global warming. +As a +logician (who was never +% formally + trained in the experimental sciences), this author is +%of this +%article is +% simply + unable to assess how likely it is +% that + that +global warming will need +a 2-Prong response +% necessary +(where +humans +% will +do concede +temporary control over the planet's destiny to AI-based computers). +However, it is safe to presume +that such a loss of control would be +only temporary +if trustworthy self-justifying axiom systems +are deployed that can simultaneously be: +{\it +$\, 1)~$consistent, +$\, 2)~$aware of their own consistency and +$\, 3)~$capable of proving a rich set of $\Pi_1^*$ theorems.} + + + + +% \parskip 1pt + +This article is written in a context where its author +has reached the age of 70 and is retiring from teaching. +Our hope is that the preceeding +% above +%Example \ref{main-ex} and Remarks \ref{rem4} and \ref{rem5} +discussion +will encourage several logicians to join projects +that enhance interactions +between the +logic community with the +allied research in + biology, chemistry, physics and mathematics. +A +tempting +% nice +and + new form of artificial intelligence + would +% should +then +%%%%% be likely +likely be +born and +% nicely + nicely + prosper. + + +\smallskip + +%ggggggg + +This article is dedicated to the +memory of both +my parents, +%%%Alfred and Ruth, +who +% had +narrowly +escaped +the Holocaust. +{\it $~$Let us pray that$\,$} + global warming +% does + will +%shall + not +% cause +% engulf +impose +% a much wider and extreme +a +% much + more wide-spread +% wide-spreading +calamity +upon +% all +the +rest +%remainder +% +% on the rest of + of humanity. +We also hope +%% Our hope is that +the +% technical + mathematical +issues, +raised in Sections 1-4, shall +help future generations of researchers resolve the +global warming crisis.... {\it before it has become +%sadly + too late ... } + + +%% We felt Section 5 of the current article +%% should have a less mathematical tone than its Sections 1-4 +%% because the subject of global warming, together with its potentially +%% required (?) +%% % computerized +%% 2-Prong resolution, +%% %was sufficiently urgent to mention. +%% should receive at least some attention + + +%% response to it, +%% cannot +%% %simply should not +%% be ignored. + +%% +%% We suspect that logicians +%% can significantly +%% help +%% biologists, chemists and physicists +%% resolve the global warming crisis +%% in the future. + +%hhhh + + +\parskip 0pt +\normalsize \baselineskip = 0.96 \normalbaselineskip + +\section*{APPENDIX Reviewing +the + Definition of a Tableaux Proof} + +Our definition of a semantic tableaux proof +is similar to its analog appearing in the textbooks by +Fitting and Smullyan + \cite{Fi96,Sm95}. +A tableaux proof of a theorem $\Psi$ from a set of proper +axioms, denoted as $~\alpha~$, will be a tree structure whose +root contains the temporary contradictory assumption of $~\neg \, \Psi~$ +and whose every descending root-to-leaf branch affirms a contradiction +by containing both some sentence $\phi$ and its negation of $\neg \, \phi$. +Each internal node in this tree will be either a proper axiom of +$~\alpha~$ or a deduction +from +a higher +ancestor +node in this tree using one of +the + following +six % deduction +elimination +rules for the logical connective symbols of +$~\wedge~$, $~\vee~$, +$~ \rightarrow ~$, $~\neg~$, $~\forall~$ and $~\exists~$. +These six rules are described below in a context where +the +expression +``{\bf $ \, $A$ ~ \Longrightarrow ~ $B$ \, $}'' +is an abbreviation for the sentence + {\bf $ \, $B$ \, $} +being + an allowed deduction +from its ancestor of {\bf $ \, $A$ \, $}. +\begin{enumerate} +%\itemsep 5pt +%note \small +%%corebl \baselineskip = 1.05 \normalbaselineskip +\item $~ \Upsilon \wedge \Gamma \, ~ \Longrightarrow ~ \, \Upsilon +~$ +and +$~ \Upsilon \wedge \Gamma \, ~ \Longrightarrow ~ \, \Gamma ~$ . +$~~~$ +\item $ \, \neg \,\neg \, \Upsilon \, \Longrightarrow \, \Upsilon. \, $ +Other rules for +the ``$ \, \neg \,$'' symbol are: +$ \, \neg ( \Upsilon \vee \Gamma ) \, \Longrightarrow \, \neg \Upsilon +\wedge \neg \Gamma$, +%\newline +$ \, \neg ( \Upsilon \rightarrow \Gamma ) \, \Longrightarrow \, \Upsilon +\wedge \neg \Gamma \, $, +$ ~~~~\, \neg ( \Upsilon \wedge \Gamma ) \, \Longrightarrow \, \neg +\Upsilon \vee \neg \Gamma \, $, + $~ \, \neg \, \exists v \, \Upsilon (v) \, \Longrightarrow \, +\forall v \neg \, \Upsilon (v) \, $ + and $ ~~\, \neg \, \forall v \, \Upsilon (v) \, \Longrightarrow \, +\exists v \, \neg \Upsilon (v)$ +\item A pair of sibling nodes $~ \Upsilon ~$ and $~ \Gamma ~$ is +allowed +when their ancestor is +$~\Upsilon \, \vee \, \Gamma.~$ +\item A pair of sibling nodes $ \, \neg \Upsilon \, $ and $ \, \Gamma \, $ is +allowed +when their ancestor is +$ \, \Upsilon \, \rightarrow \, \Gamma$. +\item $\forall v \, \Upsilon (v) \, \Longrightarrow \, \Upsilon(t) \, $ +where $t$ may denote any +term. +%% (These terms may be any one of +%% a constant symbol, +%% a parameter symbol +%% or a more complex object in our language $L^*$ that combines +%% its function symbols, constant symbols and parameter symbols +%% in a routine manner) +\item $~ \exists v \, \Upsilon (v) ~ \Longrightarrow ~ \, \Upsilon(p) ~$ +where $\,p \,$ is a newly introduced parameter symbol. +\end{enumerate} +A minor additional comment about our notation is that we treat + ``$~ \forall~ v \leq s~~~ \Phi(v)~$'' +as an abbreviation for + $~ \forall v ~~ \{ ~ v \leq s~~ \rightarrow ~~\Phi(v)~ \}~$ +and likewise + ``$~ \exists~ v \leq s~~~ \Phi(v)~$'' +as an abbreviation for + $~ \exists v ~~ \{ ~ v \leq s~~ \wedge ~~\Phi(v)~ \}~$. +In our year-2005 article \cite{ww5}, we thus applied +Rules 5 and 6 +to derive the following further hybrid rules +for processing bounded universal and + bounded + existential quantifiers: +\begin{description} +\item[ a. ] + $\forall v \leq s \, \Upsilon (v) ~~ \Longrightarrow ~~ +t \leq s \, \rightarrow \, \Upsilon(t) $ +where $\,t \,$ may be any arithmetic term. +\item[ b. ] + $~ \exists v \leq s ~ \, \Upsilon (v) ~~ \Longrightarrow ~ ~ +u \leq s ~ \wedge~ \Upsilon(p) ~$ +where $\,p \,$ is a new parameter symbol. +\end{description} + + +% \smallskip + +{\bf ACKNOWLEDGMENT:} I thank Seth Chaiken for several helpful comments about +how to +improve the presentation. + + +\bibliographystyle{abbrv} + +\bibliography{bb} + + +\end{document} + + + + diff --git a/nachlass/collected_dew_materials/2011-2019/wollic-2019.tex b/nachlass/collected_dew_materials/2011-2019/wollic-2019.tex new file mode 100644 index 0000000..30cb459 --- /dev/null +++ b/nachlass/collected_dew_materials/2011-2019/wollic-2019.tex @@ -0,0 +1,2622 @@ +% 2019 feb24 8am while listeing to jazz +% 1019 feb22 1am 1-word change +% 2018 feb-17 11.30 pm while listenning to Bobby Dee + +%% seth and I agrred to meet on thursday 3pm + + +\documentclass{llncs} +\usepackage{amssymb} + + +\newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + + \newenvironment{#1}{\begin{#1q}\rm}} + + + + + + + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + + + +\def\iii{IS$_D(\aaa)$} +\def\I2{IS$^{\#}_D(\beta)$} +\def\ik3{IS$^{\#}_D(\beta_{A,i})$} + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\begin{document} + + + \title{On the Breadth and +Also + Limitations of the + Second Incompletenss +Theorem} + + +\def\aaa{\beta} +\def\ccc{Class} + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + +\author{ Dan E.Willard} + + +\institute{University at Albany Computer Science and Mathematics Departments} + + +\maketitle +\pagestyle{plain} + +%\bigskip + + +\normalsize + +\begin{abstract} +%%% large \baselineskip = 2.4 \normalbaselineskip +This article will investigate several quite similar-looking + axiom systems that seek to confirm +their own consistency via the use of +self-referencing axiomatic +statements, roughly declaring that +{\it ``I am consistent''}. +Surprisingly although our +two main + investigated formalisms will differ only +slightly in the fine print of their particular + definitions, +one among these systems will be consistent, while +the other +is inconsistent. +This result will clarify +both +the breadth and +limitations + of the Second Incompleteness Theorem. +It will also have practical consequences. + +\end{abstract} + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\hgskip{ \medskip } + +\def\njp{\newpage} +\def\njp{ } + +\def\nskip{\bigskip} + + +%\Large +%\baselineskip = 2.07 \normalbaselineskip + + \large \baselineskip = 1.5 \normalbaselineskip +% \large \baselineskip = 2.3 \normalbaselineskip +%\Large \baselineskip = 1.9 \normalbaselineskip +%% \LARGE +\normalsize \baselineskip = 2.6 \normalbaselineskip +\Large \baselineskip = 2.6 \normalbaselineskip + +\large \baselineskip = 2.6 \normalbaselineskip + + + \normalsize \baselineskip = 1.0 \normalbaselineskip +\parskip 1pt + +% \normalsize \baselineskip = 3.0 \normalbaselineskip +%%% \normalsize \baselineskip = 3.4 \normalbaselineskip + +% \large \baselineskip = 3.0 \normalbaselineskip + \normalsize \baselineskip = 2.22 \normalbaselineskip +% \large \baselineskip = 2.22 \normalbaselineskip +\normalsize \baselineskip = 1.77 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip + + +\section{Introduction} +%11111 +\setcounter{section}{1} + + + +We have published a series of papers about generalizations and +boundary-case exceptions to the Second Incompleteness +during the last 25 years +% cite {????}, +\cite{ww93,ww1,ww2,ww5,wwapal,ww6,ww7,ww9} +including six papers that have appeared in the JSL and APAL. +Our goal in the current article will be to focus on +\cite{ww5}'s + IS$_D(\beta)$ + formalism. +It was shown in + \cite{ww5} +that if $\beta$ denotes any consistent extension of +Peano Arithmetic and if $D$ denotes semantic tableaux deduction, +then IS$_D(\beta)$ +will be a consistent axiom system that +can simultaneously prove isomorphic analogs of all of +Peano Arithmetic's $\Pi_1$ theorems while also corroborating +its own consistency under semantic tableaux deduction. +The current article will show, surprisingly, that if one changes the +definition of $D$ in a relatively minor manner, corresponding +to what we shall call {\it ``Extended Semantic Tableaux'',} then +the resulting modification of + IS$_D(\beta)$ will +become inconsistent (and thus + useless). + +This result +% does +will + not lessen +the significance of + \cite{ww5}'s prior result. +It +%does, +will, + however, +% will +clarify +its +basic + theoretical meaning. +% of \cite{ww5}. +Most of +our current discussion +will +% shall + be addressed to an audience +of theoretical logicians, but +% an important short +a brief +3-page passage + (in Section \ref{sect5}) +will explain +how some related +future + AI software could +plausibly relieve +% section +% two pages + global warming. +It +%This latter discussion + will suggest the contrast +between our positive and negative results, +together with +future +results +developed +by other + logicians, + should help +significantly +% fine-tune +refine + future artificially intelligent software +systems +that seek to ameliorate the +harmful + effects from global warming. + + +The author of this article has now reached the retirement age of 70. +We +hope + this article +will be written +in a style that encourages +other +logicians to investigate +its subject further. +%With such a goal in mind, +We will strive to make this paper +comprehensible to a +broad audience, and we +shall + briefly discuss its +pragmatic significance. + +\section{General Perspective} +\label{sect2} + +%%22222 + +It is well known that +G\"{o}del's Incompleteness Theorem +is a 2-part result. +Its +first half specifies no decision +procedure can identify all +arithmetic's + true statements. +On the other hand, the + ``Second Incompleteness Theorem'' + assures that +sufficiently strong +logics +{\it cannot} verify their own consistency. +G\"{o}del +was careful to insert +a + caveat +into +his +%%!! historic +paper +\cite{Go31}, +indicating +a +{\it +diluted} +form +of Hilbert's Consistency Program +might +meet some success: +\begin{quote} +$*~$ {\it ``It must be +expressly +noted +Proposition XI'' +{\rm (e.g. the Second Incompleteness Theorem)} +``represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and { there might +conceivably be finite proofs} which cannot +be stated in P or in ...''} +\end{quote} +Some +scholars +have interpreted +$\,*\,$ +as, possibly, +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialectica interpretation. +On the other hand, +%%d the Stanford Encyclopedia's +%%d entry about G\"{o}del +%%d quotes him, +%%d in its +%%d Section 2.2.4, +%%d stating +%%d he was hesitant to +%%d view the +%%d Second Incompleteness Theorem +%%d as +%%d fully +%%d ubiquitous, until +%%d learning +%%d of Turing's +%%d work. +%%d Moreover, +% +Yourgrau's biography of +G\"{o}del \cite{Yo5} +indicates +von Neumann +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +Also, it is known + \cite{Da97,Go5,Yo5} +that +G\"{o}del +had initially +presumed his +second theorem +was false, before +he had + proved his stunning +result. + +It is, of course, obvious that +the Second Incompleteness Theorem has forced +the objectives of Hilbert's Consistency Program +to be radically reorganized. For instance, +G\"{o}del gave a +1933 + lecture \cite{Go33}, +where he +told his audience +that +Hilbert's +initial +1926 objectives +had + {\it ``unfortunately''} +no +{\it + ``hope of succeeding along''} +its originally intended plans. +Yet +despite this fact, + Gerald Sacks (who +interacted +% extensively +with +G\"{o}del, + during the early 1960's + at the Institute for Advanced Studies) +recalls \cite{YouSa14} +G\"{o}del declaring, +{\it thirty years after \cite{Go31}'s publication,} +that a type of +partial +revival of Hilbert's Consistency +Program, using at least Gentzen's approach, +should be considered (see the below footnote +\footnote{\label{f2} +Some quotes from Sacks's +YouTube talk +\cite{YouSa14} + are that G\"{o}del + {\it ``did not think''} +the objectives of Hilbert's Consistency Program +{\it ``were erased''} +by +the Incompleteness Theorem, and +G\"{o}del believed (according to Sacks) +that it left + Hilbert's program +{\it ``very much alive and +even more interesting than it initially was''}. +} +for a summary of + Sacks's observations). + +The research that has followed + G\"{o}del's seminal 1931 discovery has + focused mostly +% mainly +on studying generalizations of the Second Incompleteness +Theorem +(instead of also viewing its + boundary-case +exceptions). Several generalizations +of the Second Incompleteness Theorem +\cite{AB1,AZ1,Be17,Be14,BS76,Bu86,BI95,Fe60,Fr79a,Ha11,HP91,KT74,Pa71,PD83,Pa72,Pu85,Pu96,So94,Sv7,Vi5,WP87,ww1,ww2,wwapal} +are quite beautiful. The author of this paper has been + especially impressed by a generalization of the +Second Incompleteness Effect, arrived at by the +combined work of Pudl\'{a}k and Solovay, +abetted by +the research of + Nelson and Wilkie-Paris\cite{Ne86,Pu85,So94,WP87}. +These results, which + also have been more recently +discussed + in \cite{BI95,Ha7,Sv7,ww1}, +have noted the Second Incompleteness Theorem +does not require the presence of the Principle of Induction +to apply to most formalisms that use a Hilbert-style form of +deduction. (The +next chapter will offer a detailed summary of this +important generalization + of +the Second Incompleteness Theorem in +its +% the paragraph called + Remark \ref{nremm-2.5}.) + + +Our research, during the last 25 years has +had a different focus, +exploring +Boundary-Case exceptions to the Second Incompleteness Theorem +with equal intensity as +its generalizations. +It would be natural for many readers to ask why such +exceptions should also be studied +with +%such +fully +equal intensity? + +One reason is that while generalizations of the Second Incompleteness +Theorem are pure +%%seth form +from +a mathematical standpoint, it must +not be forgotten that +our civilization +must confront +ecological issues + in the future, more important + than how to devise short proofs for the existence +of a +large number +that cannot be easily encoded in a binary format, + such as +a googolplex $= \,2^{2^{100}}$. + + +The current paper will explore +G\"{o}del's +% underlying +motivation for making his + statement $*$ and +Hilbert's +% similar +closely +related famous + declaration + $**$ from + \cite{Hil26}: + +\begin{quote} +$**~$ +{\it `` +Let us admit that the situation in which we presently +find ourselves with respect to paradoxes is in the long +run intolerable. Just think: in mathematics, this paragon of +reliability and truth, the very notions and inferences, +as everyone learns, teaches, and uses them, lead to absurdities. +And +where +else +would +reliability and truth be found +if even mathematical thinking fails?''} +\end{quote} +A surprising facet of both $*$ and $**$ is that our short 3-page +discussion + (in \textsection \ref{sect5}), +about how to ameliorate the effects of global warming, +will be related +to Hilbert's and G\"{o}del's + predictions, about the +underlying + importance of +boundary-case exceptions to the Second Incompleteness +Theorem. + + +\section{ Notation for Introducing Main Formalism} +%% 333333 } + +\label{nnn2} + +Let us +call an +ordered pair $(\alpha,D)$ a + {\bf Generalized Arithmetic Configuration} +(abbreviated as a {\bf ``GenAC'' }) +when its +first and second +components +are +defined +as +follows: +\bee +\item +The {\bf Axiom Basis} ``$~\alpha~$'' +for a + GenAC +%ssss Generalized Arithmetic +will be defined as +the set of + proper axioms +it employs. +\item +The second component ``$~D~$'' of a + GenAC +%ssss Generalized Arithmetic +will represent +the +{\it combination} of its formal rules of inference +with +%its +the + logical axioms ``$~L_D~$'' it employs. +The +term {\bf ``Deductive Apparatus''} will be often +used to refer to $D$. +\ene + +% \cite{End,Fit,HP91,Mend} + + +\begin{example} +\label{nex-2.1} +\rm +This notation +allows us to + conveniently separate the logical axioms +$~L_D~,~$ associated with $( \alpha , D )~$, from +its +``basis axioms'' $\, \alpha \,$. +It also allows one to compare +the various +deductive apparatus techniques +that +have +appeared in the literature. +For instance, +the + $~D_E~$ apparatus, +introduced + in +\textsection + 2.4 of Enderton's textbook \cite{End}, +has + used only modus ponens +as a rule of inference, +combined with a +complicated +4-part schema of logical axioms. +This differs from +the $~D_M~$ , $~D_H~$ and $~D_F~$ approaches of +Mendelson \cite{Mend}, +H\'{a}jek-Pudl\'{a}k \cite{HP91} +and Fitting \cite{Fi96}. +The former two textbooks +employ a simpler set of logical axioms +than $\, D_E \,$, +but they require +two rules of inference +(modus ponens and generalization). +The $~D_F~$ apparatus, appearing in Fitting's textbook \cite{Fi96}, +as well as its predecessor due to Smullyan \cite{Sm95}, +actually employ {\it no logical axioms.} +Instead, +\cite{Fi96,Sm95} + rely upon a +``tableaux style'' method for generating a +%consequently +%complicated +larger number of +rules of +inference. +\end{example} + + +\begin{definition} +\label{ndef-2.2} +\rm +Let +$ \, \alpha \, $ again +denote an axiom basis, +and $ \, D \, $ +designate + a +deduction apparatus. +Then +the GenAC of + $( \alpha , D )$ +will +% shall +be called {\bf Self Justifying} + when +\begin{description} +% \xxitch +% \small + \item[ i. ] one of $~( \alpha , D )$'s theorems +(or possibly one of $\alpha$'s axioms) +does +%will +state that the deduction method $ \, d, \, $ applied to the +basis +system $ \, \alpha, \, $ +%will +produces a consistent set of theorems, and +\item[ ii. ] + the GenAC formalism $ \,( \alpha,D) \, $ is, in fact, +actually consistent. +\end{description} +\end{definition} + + +\begin{example} +\label{nex-2.3} +\label{ex2} +%%%%%%%%%%%%%%%%%%% OLD \label{ex-2.5} +\rm +Using +Definition \ref{ndef-2.2}'s + notation, our +prior + research +% in +\cite{ww93,ww1,ww5,wwapal,ww9} +% has +constructed +%developed +GenAC pairs +% arithmetics +$~( \alpha , D )$ +that + were +``Self Justifying''. +We +also +proved +the Incompleteness Theorem +implies specific +limits beyond which +self-justifying +formalisms +simply + cannot transgress. +For any $\,(\alpha,D) \,$, +it is +thus +easy +%almost trivial +to construct a +system $ \, \alpha^D \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +condition +(in an isolated context {\it where the Part-ii condition is + not also +satisfied}). +For instance, $ \, \alpha^D \, $ could +consist of all of $~\alpha \,$'s axioms plus +the added {\bf $\,$``SelfRef$(\alpha,D)$''$\,$} sentence, +defined below: +%% as stating: +\begin{quote} +% \small +$\oplus~~~$ +There is no proof +(using +$D$'s deduction method) +of $0=1$ +from the {\it union} + of +the + axiom system $\, \alpha \, $ +with {\it this} +sentence ``SelfRef$(\alpha,D) \,$'' (looking at itself). +\end{quote} +Kleene +showed \cite{Kl38} +how +to +encode +% rough + analogs of +the above ``SelfRef$(\alpha,D) \,$'' statement, +which we often call an + {\bf $\,$``I AM CONSISTENT'' +%axiomatic + declarative axiom.} +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71}, +however, + emphasized +% that +$\alpha ^D$ +may +be inconsistent +(e.g. violating Part-ii of self-justification's +definition), +{\it despite SelfRef$(\alpha,D)$'s +formal +assertion.} +This is because if the + pair $(\alpha,D)$ is too strong +then a +quite conventional +G\"{o}del-style diagonalization argument can +be applied to the axiom basis of +$\alpha^D~~=~~ \alpha \, + \, $ SelfRef$(\alpha,D), ~$ +where the added presence of the statement +SelfRef$(\alpha,D)$ +will cause this extended version of +$\, \alpha\,$, ironically, + to + become automatically inconsistent. +Thus, an +encoding for +``SelfRef$(\alpha,D)$'' is relatively easy, +via an application of the Fixed Point Theorem, +but this sentence + is, typically +{\it +utterly +useless!} +\end{example} + +% \bigskip + +\parskip 0pt + + +\begin{definition} +\label{ndef-2.4} +\rm +Let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote two 3-way predicates, specifying + $x+y=z$ and $x*y=z$, +for which the +associative, commutative, identity and distributive +properties have $\Pi_1$ style encodings under an +axiom system of $\alpha$. +Then we will say +that $~\alpha~$ +{\bf recognizes} successor, addition and multiplication +as {\bf Total Functions} iff +it can prove all of +\eq{totdefxs} - \eq{totdefxm} +as theorems: +\end{definition} +% \newpage +{ \small +\baselineskip = .9 \normalbaselineskip +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +%%% \vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + + +\noindent +Furthermore, we will call the GenAC system $(\alpha,D)$ a +% $\alpha$ will be called +{\bf Type-M} +formalism +iff it includes +\eq{totdefxs} - \eq{totdefxm} +as theorems, {\bf Type-A} if it includes +only \eq{totdefxs} and \eq{totdefxa} as theorems, +and {\bf Type-S} if it contains +only \eq{totdefxs} as a + theorem. +%Moreover, +Also, + $(\alpha,D)$ + will be +% is +called +{\bf Type-NS} iff it can prove +none of these theorems. + +\parskip 2pt + +%\bigskip + +\begin{remark} +\label{nremm-2.5} +%% +\rm +The separation of GenAC systems into the four +categories of Type$-$NS, Type-S, Type-A and Type-M systems +will enable us to nicely summarize the prior literature +about generalizations and boundary-case exceptions +for the Second Incompleteness Theorem. This is because: +\bed +\item[ $~~~~$i.$~~$ ] +The combined research of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87}, +as is formalized by Theorem $\, ++ \,$, +implies no +natural Type$-$S GenAC system $(\alpha,D)$ +can recognize its own consistency +when $D$ is one of +Example \ref{nex-2.1}'s three +examples of + Hilbert-style +deduction operators of +$\, D_E \,$, $\, D_H \,$ +or +$\, D_M ~~$. In particular, +it establishes the following result: +\medskip +\begin{quote} +\normalsize \baselineskip = 1.0 \normalbaselineskip +{\bf ++ } +{\it +(Solovay's +modification +\cite{So94} +of Pudl\'{a}k \cite{Pu85}'s formalism +using some of +Nelson and Wilkie-Paris \cite{Ne86,WP87}'s +methods)} : +Let +$ \, (\alpha,D) \, $ +denote +a GenAC system +supporting +% which contains +the +\el{totdefxs}'s +Type-S statement +and +assuring +the successor operation +will +satisfy +both +% the axioms of + $ \, x' \neq 0 $ and +$ x' = y' \Leftrightarrow x=y $. +$~$Then +$ \, (\alpha,D ) \, $ +%%%%$~\alpha~$ +cannot verify its own +%will be unable to recognize its +%own +consistency +whenever +simultaneously + $D$ is some type of +a Frege-Hilbert +deductive +apparatus and +%whenever +$~\alpha~$ + treats addition and multiplication +as 3-way relations, +satisfying +their usual % identity, +associative, commutative + distributive +and identity +% axiomatic properties. +axioms. +% -axiom +% properties. +\end{quote} +\medskip +Essentially, Solovay \cite{So94} +privately communicated +to us +in 1994 +%to us +an analog of theorem $++$. +%but +Many authors +have noted Solovay + has +been +%often +reluctant to publish +% several of +his +nice +privately communicated +results +on many occasions +%in several contexts +\cite{BI95,HP91,Ne86,PD83,Pu85,WP87}. +Thus, +%polished +approximate analogs of +%statement + $++$ + were explored +subsequently + by Buss- Ignjatovi\'{c}, +H\'{a}jek +and +\v{S}vejdar in \cite{BI95,Ha7,Sv7}, +as well as in Appendix A of +our paper +\cite{ww1}. +Also, +Pudl\'{a}k's initial 1985 article \cite{Pu85} +% implicitly +captured +% , notably, +the majority +%most +%%% much +of $++$'s +essence, chronologically before Solovay's observations, +%Also, + and +Friedman did +% some +related work + in +\cite{Fr79a}. + +\medskip + +\item[ $~~$ii.$~~$ ] +Part of what makes $++$ interesting is that +\cite{ww1,ww5,wwapal} +explored two methods for +GenAC systems +to confirm their own consistency, whose +natural hybridizations are precluded by $++$. +Specifically, these results involve using +Example \ref{nex-2.3}'s +self-referencing {\it ``I am consistent''} + axiom (from its +statement $\oplus$ ). +They will enable +some (not all) + Type-NS +systems \cite{ww1,wwapal} +to verify their own consistency under +a Hilbert-style deductive apparatus +\footnote{ The Example \ref{nex-2.1} had +provided +three examples of + Hilbert-style +deduction operators, called +$\, D_E \,$, $\, D_H \,$ , +and + $\, D_M ~~$. It explained how these + deductive operators differ from a tableaux-style +deductive apparatus by containing a modus ponens rule.}, +or alternatively allow +some (not all) + Type-A + systems \cite{ww93,ww1,ww5,ww6} to +corroborate +their +self-consistency +under a more restricted semantic +tableaux style deductive apparatus. +Also, we observed in \cite{ww2,ww7} how one could +refine $++$ with Adamowicz-Zbierski's +methodology \cite{AZ1} to show + most Type-M systems +cannot recognize their own semantic tableaux style consistencies. +\ennd +\end{remark} + +\begin{remark} +\label{rem2} +Several of our articles have +used +Example \ref{ex2}'s + {\it ``I am consistent''} +axiomatic statement +$~\oplus~$ +% as a vehicle + to evade the Second Incompleteness Theorem. +This methodology is +unrelated to alternate +techniques for evading G\"{o}del's Theorem +that have been explored by +Gentzen in \cite{Ge36}, +Kreisel-Takeuti +in +% the analysis of + their ``CFA'' +formalism \cite{KT74} +and to +the {\it interpretational framework} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +It turns out these latter +systems will not make as broad statements +about their consistency because they do not +make use of +Kleene-like {\it ``I am consistent''} axiom-sentences. +On the other hand, +they will possess a +% much + different +style +% kind +of advantage +because they will provide a more detailed proof +of their consistency than would follow from +statement $~\oplus\,$'s +single-sentence {\it ``I am consistent''} declaration. +\end{remark} + + +\section{More Notation and Main Formalism} +%%mmm + +%%% 444444 + +\label{sect4} + + +A function $F $ +will be called {\bf Non-Growth} +iff +$ F(a_1 \ldots a_j) +\leq Maximum(a_1 \ldots a_j)$ +holds. +Six examples of +non-growth functions are +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +$Maximum(x,y),$ +$ Logarithm(x)$ +$\,Root(x,y) \, = \, \lceil \, x^{1/y} \, \rceil$ and +$Count(x,j)$ designating the number of ``1'' bits +among $ x$'s rightmost $ j $ bits. +The term +{\bf U-Grounding Function} +referred in \cite{ww5} to +a set of +primitives, +that included the +preceding +functions plus the {\it growth operations} of addition and +{\it Double$(x)=x+x$}. +Our language $L^*$ was +built +out of these +symbols, +plus the primitives of +``0'', ``1'', + ``$ \, = \, $'' +and ``$ \, \leq \, $''. + + + + +In a context where $~\, t \, ~$ is any term in \cite{ww5}'s +language $L^*$, +$\,$the quantifiers in the wffs +$~ \forall ~ v \leq t~~ \Psi (v)~$ and $~ \exists ~ v \leq t~~ \Psi (v)$ +were called {\it bounded +quantifiers}. +Any formula in + $L^*$, +all of whose +quantifiers are bounded, was called +a $\Delta_0^*$ formula. +The $~\Pi_n^{* }~$ and $~\Sigma_n^{* }~$ formulae +were +then defined by the +usual +rules that: +\bee +\item +Every +$\Delta_0^*$ formula is considered to +be +``$~\Pi_0^{* }~$'' and +also + ``$~\Sigma_0^{* }~$''. +\item +A +wff +is called + $ \,\Pi_n^{* } \,$ +when it is encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ with +$\Phi$ being $\Sigma_{n-1}^{* }$ +\item +A wff +is called + $\Sigma_n^*$ +when it is encoded as +$\exists v_1 ..\exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{* }$. +\ene +%{\it Also throughout this article,} + Also,$~$ + the sentence $\Psi$ will be called a$~$ {\bf Rank-1* } $~$statement iff it +can be encoded in either a $\Pi_1^*$ +or $\Sigma_1^*$ format. + +Our article \cite{ww5} used the symbol $~D~$ to denote +a deduction method. +There will be three variants of deduction methods +% that we will compare +compared +in this article. The first will be +{\it semantic tableaux}, + which will receive the abbreviated name of + {\bf Tab}. It will be similar to +%%% its analog +% appearing +the tableaux formalism +in Fitting's textbook \cite{Fi96}. +Thus a Tableaux proof of a theorem $~\Psi$ + from an axiom basis +% a set of proper axioms +$~\alpha~$ will be tree-like +structure that begins with the sentence + $~\neg ~ \Psi$ + stored in the tree's root and whose every root$-$to$-$leaf +path establishes a contradiction by containing some pair of contradictory +nodes that ``closes'' its path. The rules for generating internal +nodes along each + root$-$to$-$leaf +path will be that each node +must be either a +% formal +proper axiom of $\alpha$ or a deduction +from an ancestor node via one of the +``elimination'' +rules associated with +our logic symbols of $\wedge$, $\vee$, $\rightarrow$, $\neg$, +$\forall$, or $\exists$. (A precise definition of these six rules +and other details +appears in the attached appendix.) + +\smallskip + +Our second +explored + deductive apparatus +% in this article, +will be called {\it Extended Tableaux}, abbreviated as +{\bf Xtab}. Its definition +will be + identical to the prior +paragraph's {\it Tab-}deduction, {\it except that} for any sentence +$\phi$ +in our language $L^*$, the sentence $\phi \, \vee \, \neg \phi$ +can be permissibly + stored +% inserted +as an axiom +inside + any internal node of our proof tree. +(In other words, {\it Xtab-}deduction +will differ from {\it Tab-}deduction by allowing all instances +of the Law of Excluded Middle to appear as a logical schema of axioms. +In contrast, {\it Tab-}deduction will treat the infinite schema of +instances of the Law of Excluded Middle as +% permissibly +{\it derived theorems,} +{\bf BUT NOT ALSO} as +instances of + logical axioms. + +% \medskip + +Our third +% studied + deductive apparatus +will be called {\bf Tab-1}. +It will be a +% type of + compromise between Tab and Xtab, +% deduction, +where a ``Tab-1'' proof of $\Psi$ from +an axiom basis +$\alpha$ is defined as a set of +ordered pairs $ \, (p_1,\phi_1), \, (p_2,\phi_2), \, .. (p_k,\phi_k) \, $ +where +\bee +\item $ ~ \phi_k ~ = ~ \Psi \,$ +\item +Each $~p_j~$ is a Tab-proof of +what we have called + a Rank-1* sentence +$~\phi_j~$ from the union of $~\alpha~$ with some further Rank-1* axioms +of $~\phi_1,~\phi_2,~..~\phi_{j-1}~$. +\ene +{\bf We emphasize} that Tab-1 is +{\it less efficient} + than Xtab +deduction +because {\it the$ \,$former +requires} $\phi_j$ be a Rank-1* sentence, while Xtab +{\it does not impose} + a similar Rank-1* constraint upon +$\, \phi \,$, when + it +% uses +invokes + an $~\phi \, \vee \, \neg \phi~$ axiom. + + +Let us say that an axiom system $\alpha$ owns a +{\bf Level-1} appreciation of its own self-consistency +(under a deductive apparatus $D$) +iff it can verify +$D$ produces + no two simultaneous +proofs of a + $\Pi_1^*$ +sentence and +its negation. +Within this + context, where $~\aaa~$ denotes any axiom +system using + $L^*\,$'s +U-Grounding language, IS$_D(\aaa)$ +was defined +in \cite{ww5} +to be an axiomatic +formalism capable of recognizing all of +$\aaa$'s $\Pi_1^*$ theorems and +corroborating +its own Level-1 consistency under $D$'s deductive method. +It +consisted of the +following four +groups of axioms: +\begin{description} +\item[Group-Zero:] +Two of the Group-zero axioms will define +the +constant-symbols, +$\bar{c}_0$ +and $\bar{c}_1$, +designating the integers of 0 and 1. +The +Group-zero axioms +will +also define the +growth functions of addition and +$~Double(x) \, = \, x+x.~$ +(They will enable our formalism to +define +any +integer +$~n \geq 2~$ +using fewer than +$3 \cdot \lceil \, $Log$~n~ \rceil \,$ +logic symbols.) + +\item[Group-1:] +This axiom group will consist of a +finite set of $\Pi_1^{*} $ sentences, denoted as $~F~$, which +can prove any $\Delta_0^*$ sentence that +holds true under the standard model of the natural numbers. +(Any finite set of +$\Pi_1^{*} $ sentences $~F~$ +with this property +may be used to define Group-1, +as \cite{ww5} had noted.) + + + +\item[Group-2:] +Let $\ulxyz \Phi \urxyz$ denote +$\Phi$'s G\"{o}del Number, and +HilbPrf$_\aaa(\ulxyz \Phi \urxyz,p)$ denote a +$\Delta_0^{*} $ formula indicating +$~p~$ is a +Hilbert-styled proof of +theorem $~\Phi~$ from +axiom system $\aaa$. +For each $\Pi_1^{*} $ sentence $\Phi$, the +Group-2 schema will contain an axiom of +form \eq{group2}. +(Thus IS$_D(\aaa)$ can trivially prove + all $\aaa$'s +$\Pi_1^{*} $ theorems.) +\begin{equation} +\forall ~p~~~\{~ \mbox{HilbPrf$_\aaa(\ulxyz \Phi \urxyz,p)$} + ~~ +\Rightarrow ~~ \Phi~~\} +\label{group2} +\end{equation} +\item[Group-3:] +The final part of IS$_D(\aaa)$ +% shall +will +be a +self-referencing +$\Pi_1^*$ +axiom, +that indicates +IS$_D(\aaa)$ +is +``Level-1 consistent'' +under + $D$'s deductive method. +It +is, +thus, the following declaration: +\begin{quote} +\# $~${\it No two +proofs exist +for +a $\Pi_1^{*} $ sentence +and its negation, when +$D$'s deductive method is applied to an axiom system, +consisting of +the {\it union} +of +Groups 0, 1 and 2 with {\bf $\,$this sentence$\,$} +(looking at itself).} +\end{quote} + +\smallskip +One encoding of \#, +$\,$as a self-referencing +$\Pi_1^{*} $ +axiom, +had appeared + in +\cite{ww5}. +Thus, +\eq{group3} +is a +$\Pi_1^{*}\, $ styled +encoding for$~$ + \# +$~$when: +$~~1)~~ \, \mbox{Prf} \, _{\mbox{IS}_D(\aaa)}(a,b) \, $ is +a + $\Delta_0^{*} $ formula +indicating +that +$ \, b \, $ is a proof + of a theorem $\, a\,$ +under + $\mbox{IS}_D(\aaa)$'s axiom system +and $D$'s deduction method, +$\,~$and $~~2)~~$Pair$(x,y)$ is a $\Delta_0^{*} $ formula +indicating +that $ \, x \, $ is a + $\Pi_1^{*} $ sentence +and that + $ \, y \, $ +represents +$ \, x \,$'s negation. +\end{description} +\begin{equation} +\forall ~x~\forall ~y~\forall ~p~\forall ~q~~~~ \neg ~~ +[~~ \mbox{Pair}(x,y)~ \wedge ~ +~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(x,p)~ +\wedge ~ ~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(y,q)~ ] +\label{group3} +\end{equation} + +%%%%% \parskip 2pt +%\smallskip + +\begin{definition} +\label{def3} \rm +Let $~D~$ denote +any one of + the {\it Tab, Xtab} or +{\it Tab-1} + deductive methodologies. +We will say that +the mapping $\mbox{IS}_D(~\bullet~)$ + is +{\bf Consistency Preserving} + iff + $\mbox{IS}_D(\aaa)$ +is guaranteed to be consistent +under $D$'s deductive apparatus +whenever all the axioms of $\aaa$ hold +true under the standard model of the natural numbers. +\end{definition} + +%\smallskip + + + +%%%%% 66666 NEW PASSAGE + +\begin{theorem} +\label{th1} \rm +The $\mbox{IS}_{\it Tab}(~\bullet~)$ +and $\mbox{IS}_{\it Tab-1}(~\bullet~)$ +mappings +are +consistency preserving, but the similar-looking + $\mbox{IS}_{\it Xtab}(~\bullet~)$ mapping +is actually not{\it $~~$. This +statement + is + formalized by the +% formalized, more precisely, by the +Items (a) and (b) below:} +\bed +\item[ a. ] + $\mbox{IS}_{Tab}(\aaa)$ +and +$\mbox{IS}_{Tab-1}(\aaa)$ +are always consistent +whenever all the axioms of $\aaa$ hold +true under the standard model + of the natural numbers. + +\smallskip + +\item[ b. ] +In contrast, + $\mbox{IS}_{Xtab}(\aaa)$ +is {\it automatically inconsistent} +whenever +$~\beta~$ +proves +the +%some + conventional $\Pi_1^*$ theorems +showing +%that + addition and multiplication +satisfy +their +associative, commutative, + distributive +and identity +properties. +% principles. +\ennd +\end{theorem} + +{\it Proof Summary:} +The two halves of Theorem \ref{th1}'s +proof would be quite lengthy, if +% we used +%%% had to rely on +first principles +were used + to justify +them. +Fortunately, there is an easier method to +justify +(a) and (b), +% Theorem \ref{th1}'s two them +by relying upon the earlier literature. + +% \parskip 2pt + +Thus, Part (a) follows +from our + main +result +in \cite{ww5}. + It +indicated $\mbox{IS}_{\it Tab-1}(~\bullet~)$ +was a consistency preserving +%%%% mapping, and this implies + mapping. This implies +that $\mbox{IS}_{\it Tab}(~\bullet~)$ +is also consistency preserving +because Tab-deduction is weaker than Tab-1. + + +Let us now turn our attention to +Theorem \ref{th1}'s second +claim (b). +Its proof is more complex but analogous to the +justification for the Invariant + ++ , which +Remark \ref{nremm-2.5} +% had +attributed +mostly to + the work +of Pudl\'{a}k. Solovay, Nelson +and Wilkie-Paris. The +crucial aspect of the Frege-Hilbert methodologies +employed by ++ is that modus ponens assures that +a proof of a theorem +$\psi$ +from an axiom system $\alpha$ has a length no +greater than the sum of the proof-lengths needed to derive + $\phi$ and $~\phi \rightarrow \psi~$ from +$\alpha$. This +{\bf ``Linear-Sum Effect'' +} + does not apply, +%% technically, +actually, +also to +{\it Tab-}deduction because it owns no analog of +a modus ponens rule (for assuring that +$\psi$'s proof-length is bounded by the sum of the +lengths for the proofs of + $\phi$ and $~\phi \rightarrow \psi~$) . + +The {\it Xtab} +%%deductive +methodology, however, + differs +from +{\it Tab-}deduction +by allowing any node of its proof-tree +to store a sentence of the form $~ \phi \, \vee \, \neg ~\phi~$, +as an application of its allowed use of the Law of Excluded +Middle. +This added feature allows an + {\it Xtab} proof for +$\psi$ to have a length +%% be bounded approximately +proportional to + the sum of +the proof lengths for + $\phi$ and $~\phi \rightarrow \psi~$. In particular, +the relevant + {\it Xtab} proof for +$\psi$ +can be summarized as having the following 4-part structure: +\bee +\item +The root of the proof of $\psi$ +will be the usual temporary negated hypothesis of + $~\neg \psi~$ (which the remainder of the proof tree will +show is impossible to hold). +\item +The child of this +root +node will be an allowed invocation of the +Law of the Excluded Middle of the + form $~ \phi \, \vee \, \neg ~\phi~$. +\item Our tableaux proof tree will next employ +the Appendix's branching rule for allowing the two +sibling nodes of + $~ \phi ~$ + and $~ \neg ~\phi~$ to descend from +Item 2's node. +\item +Finally, our tableaux proof will insert below +(3)'s left sibling node +of $~ \phi ~$ a subtree structure that is no longer than +the proof of $~\phi \rightarrow \psi~$, +and likewise +insert + a proof for $~\phi~$ +below (3)'s right sibling +%%%%%%% node +of $~ \neg ~\phi~$. +\ene +The point is that the last step of our 4-part proof +has a length no greater than the sum of the two + proof lengths for + $\phi$ and $~\phi \rightarrow \psi~$, +and its first three steps have inconsequential lengths +that will increase +its + overall proof length by no +more than an unimportant +amount proportional to the length of the +sentence ``$~\phi ~ \rightarrow ~\psi~$''. + +%%%8888888888888 + +%%{sect2} + +We can apply +the preceeding + ``Linear-Sum Effect'' +to construct an analog +of Remark \ref{nremm-2.5} 's +earlier Theorem $\, ++ \,$ +germane to + Extended Tableaux deduction (which is also called ``Xtab''). +Saving +several +%the +details +for a longer paper, +the intuition +behind this analog is that modus ponens + {\it is the only + rule of inference} used + by +the classic + \cite{End}'s textbook-style +% classic +first-order logic system, + and +Xtab can +% that Xtab +% can +% thus + use its + Linear-Sum Effect + to simulate modus ponens. +This natural analog of + $++$ will +%%%% then +%% thus +assure +%% that +any axiom system $~\cal{A}~$ is +% then + {\it automatically inconsistent} whenever: +\begin{enumerate} +\item +$\cal{A}$ + can verify Successor is a total function (as formalized +by \el{totdefxs} ), +\item +$\cal{A}$ +can prove +%%% +%%% proves +%%% $\Pi_1^*$ theorems +%%% %%% showing +%%% that show +%%% + addition and multiplication +satisfy +their usual +associative, commutative, + distributive +and identity axioms. +\item +$\cal{A} \,$ +proves +an added + theorem (which turns out to be false) affirming its own +consistency when the +Xtab + deductive apparatus is used. +\end{enumerate} +The preceding observation completes +Theorem +%%% \ref{th1}'s +1-b's + proof because + $\mbox{IS}_{Xtab}(\aaa)$ +meets +% satisfies +all three of these +requirements. +%% ?????? (see footnote). +$~~~\Box$ + + + +\begin{remark} +\label{rem3} \rm +We +have +deliberately resisted the temptation of providing a more +elaborate proof of Theorem \ref{th1}, +beyond the above +summary +in this +% current + extended abstract. +This is because +it is desirable + to reserve +%%% three pages of space +page space + for explaining +how Theorem \ref{th1} (and other aspects of symbolic logic) +can help + biologists, chemists, physicists and mathematicians +develop formal Artificial Intelligence mechanisms +for +% alleviating +relieving$~$the harmful effects +from global warming. +\end{remark} + + +\parskip 1 pt + + +The contrast between the positive and negative results +of Theorem \ref{th1}'s two claims will +be central to the next section's discussion. +Although the topic of global warming was +essentially + unknown +to the world of the 1920's and 1930's, +the next section will show +that + the often quoted statements +$*$ and $**$, of G\"{o}del and +Hilbert, +%%%%%%%%% Hilbert +do gain +some +new +interpretations. + +%END OF NEW PASSAGE + + + + + +\section{An Application of Theorem \ref{th1} +Germane to Diminishing the Damage +Caused by Global Warming} + +% \large \baselineskip = 1.5 \normalbaselineskip +%%%555555555555555 +\label{sect5} + +We +%did become +became + aware about +how the hard-core sciences of + biology, chemistry, and physics could use concepts +from Symbolic Logic (such as Self-Justification) +to alleviate the effects of global warming +after +reading several +% quite +alarming + Year-2017 interviews of +the late physicist Stephen Hawking +\cite{Ha17a,Ha17b}. +In those interviews, Hawking +% has +%joined + did join +a growing team of scientists +concerned that if current trends continue, then +global warming could cause the planet Earth to become too hot +for mammals to survive, within one or two centuries. +(Hawking actually states +%that +the extinction of all mammal species could + occur +as early as +% even + within ``100 years'', +but we would prefer to +optimistically + hope that there is, at least, +an available 200-year window in time before the most tragic results +%will +occur, if indeed they cannot (?) be +prevented.) +%avoided.) + +Hawking has +%also +hinted that computers, employing various forms +of Artificial Intelligence (AI), could be +one part of +% the +a +reply + to global warming's +emerging challenge +(if AI can {\it somehow} be handled (?) adeptly). +The + two advantages of computers +over humans are that computers +can produce +deductions more quickly, and they can +be engineered to + survive +in environments that are inhospitable for humans. +For example, computers do not need Oxygen as a vital energy +supply. They could, thus, rely upon solar power when residing +on the Moon or Mars, and they could +possibly survive + underneath the Earth's oceans +(assuming the latter do not evaporate under intense heat). + +% \parskip 0pt + +We want to keep this chapter brief and avoid +too much speculation. +The main point is +% to suggest + that +AI-oriented + computers could possibly offer a +partially positive outcome to a global warming +crisis by employing a 2-part strategy where: +\bee +\item +AI-based computers +will +first take complete control over +the planet's +destiny, +if +(?) +humans are rendered +temporarily +extinct by global over-heating. +\item +AI-based computers +could then + subsequently restore human and +perhaps +other +higher +life forms on Earth after the planet returns +\footnote{This +footnote is a +tentative remark, but bacteria are known to be a much +more durable species than mammals, which are capable of +surviving under very high temperatures and also able to +undergo +astonishingly +speedy evolutionary changes and adaptations. +A new species of bacteria can hopefully +(?) be +engineered, +{\it perhaps with the assistance of computers,} that +can hopefully pull greenhouse gasses out of the atmosphere +and lower the temperature on Earth over +a spam of perhaps +%1,000 years. +several decades +Frozen samples of primate embryos and accompanying stored +DNA molecules, could then be used to restore human life +on Earth.} +to a cooler state and stored frozen embryos and DNA samples +%were +have been + previously (?) saved. +\ene +This methodology will be called a {\bf 2-Prong Strategy.} +%We have no doubts its +%The author of this article has no doubt that +Its two parts +will, clearly, make +some readers cringe with +discomfort. One should, however, +% take some measures to +prepare for +% plausible + worst-case +scenarios, {\it + in case +such +paradigms +% circumstances + arise? } +The next two pages +% , thus, +will +% explain particular +focus on + its +% very +special +% details germane to +implications for +symbolic logic. + + + +\begin{example} +\label{main-ex} +\rm +%%%% eeeee +%During our current discussion, +%let us have +Let + $\, \beta \,$ denote +some +% particular +consistent formal axiom +basis +% formalism +% that has been selected to +that can +prove a substantially +broader + set of $\Pi_1^*$ theorems than some +% fixed +conventional axiom system +(such as +% perhaps +Peano Arithmetic or ZF Set Theory). +Let us consider +using Artificially Intelligent (AI) +% systems +computers +to combine the formalisms +of the preceding 2-Prong +methodologies + with +% that of +Theorem \ref{th1}. +Then +% the +a +% preceding paragraph's +2-Prong Strategy may +potentially use any one of + $\mbox{IS}_{Xtab}(\aaa)$, + $\mbox{IS}_{Tab}(\aaa)$, + $\mbox{IS}_{Tab-1}(\aaa)$ or say Peano Arithmetic (PA) +as its core invoked AI decision mechanism. +A +comparison between these four +% quite different AI + variations of + 2-Prong methods +% does +will + reveal that: +\bed +\item[ a. ] +Although the $\mbox{IS}_{Xtab}(\aaa)$ formalism may look +superficially similar to + $\mbox{IS}_{Tab}(\aaa)$ and + $\mbox{IS}_{Tab-1}(\aaa)$, +it is +actually +% entirely +unacceptable as a +%formal + core invoked AI +% mechanism, +formalism +used by a 2-Prong strategy. This is +because Theorem 1-b +indicates +% that + $\mbox{IS}_{Xtab}(\aaa)$ +is inconsistent. +It will thus cause a 2-Prong strategy to make +unacceptably false decisions +\footnote{ A surprising aspect of + $\mbox{IS}_{Xtab}(\aaa)$'s faulty behavior is that its Group 0, 1 and 2 axioms +are identical to those of + $\mbox{IS}_{Tab}(\aaa)$ and + $\mbox{IS}_{Tab-1}(\aaa)$. +Thus, + $\mbox{IS}_{Xtab}(\aaa)$'s unacceptable behavior +is solely because of its Group-3 {\it ``I am consistent''} +axiom. \smallskip} +when it uses +$\mbox{IS}_{Xtab}(\aaa)$ as its core AI mechanism. + +\smallskip + +\item[ b. ] +In a context where $\beta$ has been chosen to be an axiom basis that +proves a richer set of $\Pi_1^*$ +theorems than Peano Arithmetic, PA +is +substantially + less desirable +as a 2-Prong Strategy's +%core +main + AI +decision +system than either + $\mbox{IS}_{Tab}(\aaa)$ or + $\mbox{IS}_{Tab-1}(\aaa)$ +would be. +This is +partly + because PA produces a weaker set of + $\Pi_1^*$ theorems than the latter + two +systems. +From our perspective, +a more important drawback of PA +is that it is +substantially +less adept when it is +{\it formally unable} to confirm its own consistency. + +\smallskip + +\item[ c. ] +Although both the + $\mbox{IS}_{Tab}(\aaa)$ and + $\mbox{IS}_{Tab-1}(\aaa)$ formalisms +may be used as the core AI mechanism for +our 2-Prong Strategy, +there are important distinctions +between these two mechanisms. This is because + $\mbox{IS}_{Tab-1}(\aaa)$ +uses a more sophisticated form +of a Self-Justifying + Group-3 {\it ``I am consistent''} +axiom than + $\mbox{IS}_{Tab}(\aaa)$. +(More generally, +there is probably no +% maximally + best form of Group-3 axiom +that a 2-Prong Strategy can +gainfully +employ. +For instance, + it is +evident + (see footnote +\footnote{For instance, + $\mbox{IS}_{Tab-1}$ can be beneficially hybridized with +\cite{ww1}'s +Tangibility + reflection principle, but we won't go into the +% germane +details here. +} ) +that +there do exist partially +stronger forms of + Group-3 {\it ``I am consistent''} +axioms +than those +used +% applied besides those invoked + by + $\mbox{IS}_{Tab-1}(\aaa).~~)$ +\ennd +\end{example} + +\parskip 0pt + +\begin{remark} +\label{rem4} +\rm +The central issue raised by this chapter's +2-Prong Strategy and the preceeding Example \ref{main-ex} +is +that + the dangers +posed by global warming +{\it would be tragic +but NICELY only temporary,} +%{\it temporary inconvenience}, +if robots and computers can reverse +global warming after a period of +several + thousand years. In contrast, +the implications of global warming would be +% much +far + more +severe, +% tragic, +if either it cannot be reversed or no frozen embryos +%% of mammals (and primates) +are saved so that the 4-billion-year cycle of life +on Earth can +resume +% restored +after global warming subsides. +(We do not dismiss +the hopeful +prospect +%point + that a theoretical temporary +over-heating of the planet can possibly be avoided, +but one + {\it should also not overlook} the +possibility + that some variant of a +2-Prong Strategy may become necessary, if Mankind does not +act quickly enough ? ) +This article has, thus, been written to encourage a +more direct +dialog +% to take place +between various subfields of Logic +with the hard-core +sciences of + biology, chemistry, physics and mathematics. +Its goal +will be +to discover what kinds of AI mechanisms can best reply to the +challenges posed by global warming. +% {\it if (?) they are needed !} +\end{remark} + +\begin{remark} +\label{rem5} +Lastly, let us +% should +%address +consider +how G\"{o}del's Second Incompleteness +Theorem +should be +% likely +viewed + by a broad +community + of scientists. +% working in a +% diversity of different fields. +This topic is +% quite + subtle because the Second +Incompleteness +Theorem is +undoubtedly + a seminal result that was further strengthened +by many of G\"{o}del's +% subsequent +successors. +But yet like many +other + mathematical +results, the Second Incompleteness Theorem also owns +{\it some types of +partial +limitations?} +%disadvantages? } +% limitations?} +....Thus, we should + remind ourselves that + G\"{o}del +% had +% firmly +held out the possibility +in +% his historic paper + \cite{Go31} +that some +type of partial fulfillment of Hilbert's goals + would +% ultimately +be achieved +(see again G\"{o}del's quoted +statement of$~*~ ).$ +Moreover, + Gerald Sacks in his + Year-2014 +YouTube lecture +(see +\cite{YouSa14} +and our +earlier +%inserted +% particular + footnote \ref{f2} ) +has recalled hearing +G\"{o}del {\it repeating} +% related +similar + comments +about the +importance + of + continuing + Hilbert's program + during the +% early +1960's. +%%% (This was {\it thirty years} after \cite{Go31}'s seminal publication,) + The main point is +that + a 2-Prong methodology, +permitting + an AI-based +computer +%system +% has taken, +% takes +to take temporary +%temporarily, complete +control over +%the planet's +planet Earth's +destiny, {\it should +%inherently +%substantially +ultimately be +more efficient when +it +% such +% a formalism +is allowed +to presume its own consistency}. +% +%(similar to what humans commonly do). +% +%% (as humans +%% seem to +%% have +%% % currently +%% informally +%% done during their intuitive thought processes). +%% +These observations +will + lead to +significantly + new interpretations of +G\"{o}del and Hilbert's statements $*$ and $**$. +\end{remark} + +%%% \parskip 4pt + +% \LARGE \baselineskip = 2.0 \normalbaselineskip + +%6666666 + +%999999 + +In essence, +several research projects in + symbolic logic should +be undertaken that interact with +the core sciences +of biology, chemistry and physics +%and Mathematics +to collectively address the +% fundamental +challenges + posed by global warming. +As a +logician (who was never +% formally + trained in the experimental sciences), this author is +%of this +%article is +% simply + unable to assess how likely it is +% that + that +global warming will need +a 2-Prong response +% necessary +(where +humans +% will +do concede +temporary control over the planet's destiny to AI-based computers). +However, it is safe to presume +that such a loss of control would be +only temporary +if trustworthy self-justifying axiom systems +are deployed that can simultaneously be: +{\it +$\, 1)~$consistent, +$\, 2)~$aware of their own consistency and +$\, 3)~$capable of proving a rich set of $\Pi_1^*$ theorems.} + + + + +% \parskip 1pt + +This article is written in a context where its author +has reached the age of 70 and is retiring from teaching. +Our hope is that the preceeding +% above +%Example \ref{main-ex} and Remarks \ref{rem4} and \ref{rem5} +discussion +will encourage several logicians to join projects +that enhance interactions +between the +logic community with the +allied research in + biology, chemistry, physics and mathematics. +A +tempting +% nice +and + new form of artificial intelligence + would +% should +then +%%%%% be likely +likely be +born and +% nicely + nicely + prosper. + + +\smallskip + +%ggggggg + +This article is dedicated to the +memory of both +my parents, +%%%Alfred and Ruth, +who +% had +narrowly +escaped +the Holocaust. +{\it $~$Let us pray that$\,$} + global warming +% does + will +%shall + not +% cause +% engulf +impose +% a much wider and extreme +a +% much + more wide-spread +% wide-spreading +calamity +upon +% all +the +rest +%remainder +% +% on the rest of + of humanity. +We also hope +%% Our hope is that +the +% technical + mathematical +issues, +raised in Sections 1-4, shall +help future generations of researchers resolve the +global warming crisis.... {\it before it has become +%sadly + too late ... } + + +%% We felt Section 5 of the current article +%% should have a less mathematical tone than its Sections 1-4 +%% because the subject of global warming, together with its potentially +%% required (?) +%% % computerized +%% 2-Prong resolution, +%% %was sufficiently urgent to mention. +%% should receive at least some attention + + +%% response to it, +%% cannot +%% %simply should not +%% be ignored. + +%% +%% We suspect that logicians +%% can significantly +%% help +%% biologists, chemists and physicists +%% resolve the global warming crisis +%% in the future. + +%hhhh + + +\parskip 0pt +\normalsize \baselineskip = 0.96 \normalbaselineskip + +\section*{APPENDIX Reviewing +the + Definition of a Tableaux Proof} + +Our definition of a semantic tableaux proof +is similar to its analog appearing in the textbooks by +Fitting and Smullyan + \cite{Fi96,Sm95}. +A tableaux proof of a theorem $\Psi$ from a set of proper +axioms, denoted as $~\alpha~$, will be a tree structure whose +root contains the temporary contradictory assumption of $~\neg \, \Psi~$ +and whose every descending root-to-leaf branch affirms a contradiction +by containing both some sentence $\phi$ and its negation of $\neg \, \phi$. +Each internal node in this tree will be either a proper axiom of +$~\alpha~$ or a deduction +from +a higher +ancestor +node in this tree using one of +the + following +six % deduction +elimination +rules for the logical connective symbols of +$~\wedge~$, $~\vee~$, +$~ \rightarrow ~$, $~\neg~$, $~\forall~$ and $~\exists~$. +These six rules are described below in a context where +the +expression +``{\bf $ \, $A$ ~ \Longrightarrow ~ $B$ \, $}'' +is an abbreviation for the sentence + {\bf $ \, $B$ \, $} +being + an allowed deduction +from its ancestor of {\bf $ \, $A$ \, $}. +\begin{enumerate} +%\itemsep 5pt +%note \small +%%corebl \baselineskip = 1.05 \normalbaselineskip +\item $~ \Upsilon \wedge \Gamma \, ~ \Longrightarrow ~ \, \Upsilon +~$ +and +$~ \Upsilon \wedge \Gamma \, ~ \Longrightarrow ~ \, \Gamma ~$ . +$~~~$ +\item $ \, \neg \,\neg \, \Upsilon \, \Longrightarrow \, \Upsilon. \, $ +Other rules for +the ``$ \, \neg \,$'' symbol are: +$ \, \neg ( \Upsilon \vee \Gamma ) \, \Longrightarrow \, \neg \Upsilon +\wedge \neg \Gamma$, +%\newline +$ \, \neg ( \Upsilon \rightarrow \Gamma ) \, \Longrightarrow \, \Upsilon +\wedge \neg \Gamma \, $, +$ ~~~~\, \neg ( \Upsilon \wedge \Gamma ) \, \Longrightarrow \, \neg +\Upsilon \vee \neg \Gamma \, $, + $~ \, \neg \, \exists v \, \Upsilon (v) \, \Longrightarrow \, +\forall v \neg \, \Upsilon (v) \, $ + and $ ~~\, \neg \, \forall v \, \Upsilon (v) \, \Longrightarrow \, +\exists v \, \neg \Upsilon (v)$ +\item A pair of sibling nodes $~ \Upsilon ~$ and $~ \Gamma ~$ is +allowed +when their ancestor is +$~\Upsilon \, \vee \, \Gamma.~$ +\item A pair of sibling nodes $ \, \neg \Upsilon \, $ and $ \, \Gamma \, $ is +allowed +when their ancestor is +$ \, \Upsilon \, \rightarrow \, \Gamma$. +\item $\forall v \, \Upsilon (v) \, \Longrightarrow \, \Upsilon(t) \, $ +where $t$ may denote any +term. +%% (These terms may be any one of +%% a constant symbol, +%% a parameter symbol +%% or a more complex object in our language $L^*$ that combines +%% its function symbols, constant symbols and parameter symbols +%% in a routine manner) +\item $~ \exists v \, \Upsilon (v) ~ \Longrightarrow ~ \, \Upsilon(p) ~$ +where $\,p \,$ is a newly introduced parameter symbol. +\end{enumerate} +A minor additional comment about our notation is that we treat + ``$~ \forall~ v \leq s~~~ \Phi(v)~$'' +as an abbreviation for + $~ \forall v ~~ \{ ~ v \leq s~~ \rightarrow ~~\Phi(v)~ \}~$ +and likewise + ``$~ \exists~ v \leq s~~~ \Phi(v)~$'' +as an abbreviation for + $~ \exists v ~~ \{ ~ v \leq s~~ \wedge ~~\Phi(v)~ \}~$. +In our year-2005 article \cite{ww5}, we thus applied +Rules 5 and 6 +to derive the following further hybrid rules +for processing bounded universal and + bounded + existential quantifiers: +\begin{description} +\item[ a. ] + $\forall v \leq s \, \Upsilon (v) ~~ \Longrightarrow ~~ +t \leq s \, \rightarrow \, \Upsilon(t) $ +where $\,t \,$ may be any arithmetic term. +\item[ b. ] + $~ \exists v \leq s ~ \, \Upsilon (v) ~~ \Longrightarrow ~ ~ +u \leq s ~ \wedge~ \Upsilon(p) ~$ +where $\,p \,$ is a new parameter symbol. +\end{description} + + +% \smallskip + +{\bf ACKNOWLEDGMENT:} I thank Seth Chaiken for several helpful comments about +how to +improve the presentation. + + +\bibliographystyle{abbrv} + +\bibliography{bb} + + +\end{document} + + + + diff --git a/nachlass/collected_dew_materials/2026-01-07 00.58.55.pdf b/nachlass/collected_dew_materials/2026-01-07 00.58.55.pdf new file mode 100644 index 0000000..464281e Binary files /dev/null and b/nachlass/collected_dew_materials/2026-01-07 00.58.55.pdf differ diff --git a/nachlass/collected_dew_materials/5aug.pdf b/nachlass/collected_dew_materials/5aug.pdf new file mode 100644 index 0000000..3e718ef Binary files /dev/null and b/nachlass/collected_dew_materials/5aug.pdf differ diff --git a/nachlass/collected_dew_materials/Artemovletter.pdf b/nachlass/collected_dew_materials/Artemovletter.pdf new file mode 100644 index 0000000..7c058ee Binary files /dev/null and b/nachlass/collected_dew_materials/Artemovletter.pdf differ diff --git a/nachlass/collected_dew_materials/Friedman.tex b/nachlass/collected_dew_materials/Friedman.tex new file mode 100644 index 0000000..df1bf3d --- /dev/null +++ b/nachlass/collected_dew_materials/Friedman.tex @@ -0,0 +1,24 @@ +MEMO TO karen blessing Email= blessing.17@osu.edu + +Subject: NEED CITATION INFORMATION for 2 articles by HARVEY FRIEDMAN + +I was told to contact Karen Blessing by Christian Shaw. I have + +already cited three articles by emiritus Professor Harvey Friedman in + +a paper that has been invited by Oxford's Journal of Logic + +and Computation. This article has been accepted for publication, + +but the type-setting office would like more precise citation information + +about Freidman's Ohio State technical reports. I learned about these + +Freidman results in a technical report by Pudlak, which did not give + +exact citation information. Could you please provide me with + +additional information about Ohio State technical report numbers + +for the following two papers: + diff --git a/nachlass/collected_dew_materials/NYTines-Jan2017.pdf b/nachlass/collected_dew_materials/NYTines-Jan2017.pdf new file mode 100644 index 0000000..72874b0 Binary files /dev/null and b/nachlass/collected_dew_materials/NYTines-Jan2017.pdf differ diff --git a/nachlass/collected_dew_materials/NotesonGodelforDummies_Robertstitle.pdf b/nachlass/collected_dew_materials/NotesonGodelforDummies_Robertstitle.pdf new file mode 100644 index 0000000..0277a42 Binary files /dev/null and b/nachlass/collected_dew_materials/NotesonGodelforDummies_Robertstitle.pdf differ diff --git a/nachlass/collected_dew_materials/OnSomeImportant.pdf b/nachlass/collected_dew_materials/OnSomeImportant.pdf new file mode 100644 index 0000000..49aa5d6 Binary files /dev/null and b/nachlass/collected_dew_materials/OnSomeImportant.pdf differ diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/#n.tex# b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/#n.tex# new file mode 100644 index 0000000..38afa22 --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/#n.tex# @@ -0,0 +1,4931 @@ +%% suny feb 11 noon removed bib + +% home 2014 Feb 9 9.6 -3pm old title with key words and bibliog added + +%% NEED to do SPELL + +%% godel t0 goedel and spell + +%%% home jan17 8.31 am + +%%% suny jannary11 spell 6pm + +% home 2015 january 10 7 am -minor amendment while listening Sinatra + +% home 2015 january 4 1.1 pm + +% home 2015 january 3 2.3 pm abstract and new-bib; jan4 3,1am reformat + + +%% 2014 home march 29 8.5 pm +%% AFTER PAPER SUBMITTED CHANGED LAST paragraph + +%% 2014 home march 28, 4.1 am suny 10.1 am changed 7 -10 to 6 -10 + +%IMPORTANT REMINDER Long Paper should prove Theorem 3 for D= sem tab + +%\documentclass[12pt]{article} +%\documentclass[10pt]{article} +%\documentclass[11pt]{article} +\documentclass[11pt]{article} + + + + + + + + +\usepackage{amssymb} + + + +\addtolength{\oddsidemargin}{-0.9in} + +\setlength{\textheight}{9.0 in} + + +\setlength{\textwidth}{6.5 in} +\setlength{\textwidth}{6.6 in} +\setlength{\textwidth}{6.4 in} + + + +% \addtolength{\topmargin}{-.5in} +% \addtolength{\topmargin}{-.9in} + \addtolength{\topmargin}{-.6in} + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +\newtheorem{corollary}{Corollary} +\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} + +%%% changed to double numbers + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + +\def\iii{IS$_D(\aaa)$} +\def\I2{IS$^{\#}_D(\beta)$} +\def\ik3{IS$^{\#}_D(\beta_{A,i})$} + +\def\js{IS$_D(A^*)$} +\def\ns{IS$^{\#}_D(\beta^*)$} + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + +%% +%% \title{ +%% %\Large +%% On the +%% %Broader +%% Epistemological +%% Significance of +%% Self-Justifying Axiom Systems +%% from a Semantic Tableaux Perspective} +%% + + + + +% old title is + + \title{ +%\Large +On the Broader +Epistemological +Significance of +Self-Justifying Axiom Systems} +% from the Perspective of Analytic Tableaux} + + + + + + + + + + + + + + + + + + + + + + + + + + +\def\aaa{A} +\def\ccc{Class} + + + + + + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + + + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{\normalsize This research +was partially supported +by the NSF Grant CCR 0956495. +\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + + + + +\date{State University of New York at Albany} + +\maketitle + + \setcounter{page}{0} + \thispagestyle{empty} + + + +\begin{abstract} +\large +\baselineskip = 1.5 \normalbaselineskip +This article will be a continuation of our +research into self-justifying +systems. +It will introduce +several +new theorems +(one of which +will transform our previous infinite-sized +self-verifying +logics +into formalisms +or purely finite size). +It will explain how self-justification +is useful, even when the Incompleteness +Theorem +clearly +does sharply +limit its +scope. +\end{abstract} + + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +{\large +{\bf Keywords and Phrases:} +G\"{o}del's Second Incompleteness Theorem, Hilbert's Second +Open Question, Semantic Tableaux Deduction, + Consistency.} + + +%% +%% \begin{quote} +%% %{\bf $~~~~$ Detailed Abstract (as requested by Call for Papers):} +%% {\bf $~~~~ $ Abstract:} +%% $~$ +%% This article will be a continuation of our research into self-justifying +%% systems. It will introduce several new theorems and then explore their +%% philosophical significance. Its two specific goals will be to: +%% \bed +%% \item[ A. ] +%% Explain how to transform our prior results about infinite-sized +%% self-verifying axiom systems into tighter results about axiom +%% systems of purely finite cardinality. +%% \item[ B. ] +%% Explain how self-justifying axiom systems are useful {\it even when +%% the Second Incompleteness Theorem specifies limits for their reach.} +%% In particular, this second part of our +%% research +%% %results +%% discourse +%% will explain how +%% self-justification is related to open questions and conjectures that +%% G\"{o}del and Hilbert raised in 1926 and 1931. +%% \ennd +%% \end{quote} + +%% +%% Our discussion will have a more philosophical and easier-to-comprehend tone +%% than the more mathematically styled presentation in our prior published +%% papers. +%% % +%% %Our discussion will have a more philosophical and easier-to-comprehend tone +%% %than the more mathematically styled in our prior published papers. +%% %% +%% %% The discussion in this article will have a more philosophical and +%% %% easier-to-comprehend tone than the mostly mathematical discourse in our +%% %% prior published papers. Its +%% %% +%% Its +%% concluding section will offer a new +%% interpretation of the Second Incompleteness Theorem, where G\"{o}del's +%% historic result is taken as being {\it robust and ubiquitous} from a purist +%% theoretical perspective, while +%% % still +%% permitting enough wiggle room to +%% explain how humans gain the {\it psychological motive} to cogitate in +%% applications-oriented engineering-style environments. + + + + +\normalsize + + + + +\baselineskip = 1.5\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\fgf {\baselineskip = 1.3 \normalbaselineskip } + + + +\bbint + + + + +\normalsize +%% \LARGE\baselineskip = 1.1\normalbaselineskip +\baselineskip = 1.2\normalbaselineskip + +%\vspace*{- 3.0 em} + +\newpage + + +\def\J1{IS$_D(~\cdot ~)$} + + + +\def\K1{IS$_D(~\cdot ~)$} +\def\J2{IS$^{\#}_D(~\cdot ~)$} + + +%%% ssssssssssssss +%% TEXT IS HERE + + \parskip 5 pt + +%%%%%\large + \baselineskip = 1.235 \normalbaselineskip + +\large + +\baselineskip = 1.6 \normalbaselineskip +\baselineskip = 2.0 \normalbaselineskip +\normalsize \baselineskip = 1.22 \normalbaselineskip + +\def\ssspace{\normalsize \baselineskip = 1.24 \normalbaselineskip } + +% \def\ssspace{\normalsize \baselineskip = 2.1 \normalbaselineskip } + +\ssspace + + \parskip 5 pt + +\section{Introduction} +\label{pppp1} + + +G\"{o}del's Incompleteness Theorem +has two parts. +Its +first half indicates no decision +procedure can identify +all of +arithmetic's + true statements. +Its + ``Second Incompleteness'' +result + specifies +sufficiently strong +logics +{\it cannot} verify their own consistency. +G\"{o}del +was careful to insert +a + caveat +into +his historic paper +\cite{Go31}, +indicating +a +{\it +diluted} +form +of Hilbert's Consistency Program +might +% have some success: +reach some +levels of +partial + success: +\begin{quote} +$*~$ +% (G\"{o}del \cite{Go31} 1931): +{\it ``It must be +expressly +noted +Proposition XI +(e.g. G\"{o}del's +``Second'' Incompleteness +Result) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and { there might +conceivably be finite proofs} which cannot +be stated in P or in ...''} +\end{quote} +Some +scholars +have interpreted +$\,*\,$ +as, possibly, +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialetica interpretation. +On the other hand, +the Stanford's Encyclopedia's +entry about G\"{o}del +quotes him, +in its + Section 2.2.4, +stating +he was hesitant to +view the +Second Incompleteness Theorem + as +fully +ubiquitous, until +learning +of Turing's +work. +Moreover, +Yourgrau \cite{Yo5} +states +von Neumann +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +Also, it is known + \cite{Da97,Go5,Yo5} +that +G\"{o}del + initially +presumed the +second theorem +was false, before proving his stunning +result. +%hhhh + + + +\smallskip + + + +In any case +several + year after he wrote $*$'s +initial + statement, +G\"{o}del gave a +1933 + lecture \cite{Go33}, +where he +told his audience +that +Hilbert's +initial +1926 objectives, summarized +formally +by + $**$ below, +had + {\it ``unfortunately''} +no +{\it + ``hope of succeeding along''} +its originally intended plans. +\begin{quote} +$**~$ (Hilbert \cite{Hil26} 1926): +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding itself.''} +\end{quote} + +Our research, in both the current article +and +the +prior papers +\cite{ww93}-\cite{ww14} +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}, +was stimulated by the prospect that we find $**$ enticing, +even though the Second Incompleteness +Theorem +{\it unequivocally} + demonstrates that logics +{\it cannot} recognize +their own consistency +{\it in a robust sense.} +Accordingly, we have studied +{\it both} generalizations and boundary-case exceptions +for the Second Incompleteness Theorem +in +\cite{ww93}-\cite{ww14}. +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +The current article will seek to +{\it both} strengthen these prior +results, +in the context of axiom systems +with +{\it + strictly finite cardinalities}, +and to also provide a more intuitive explanation of the +meaning +behind +\cite{ww93}-\cite{ww14}'s +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}'s +results. + +The thesis of this article will be delicate +because there can be no doubt that + the Second Incompleteness +Theorem is +sharply robust, +when viewed +from a + conventional +purist +mathematical + perspective. +On the other hand, we will argue that there are certain facets +of a ``Self-Justifying Logics'', that are tempting +under a hard-nosed +engineering perspective, +contemplating + sharply + {\it curtailed forms} of Hilbert's goals. +These results will be + fragile +{\it but +not +fully +immaterial.} + + +%bbbb +In other words, this +article will offer a somewhat complicated +2-part interpretation of the Second Incompleteness Theorem +where: +\bee +\item +The Second Incompleteness Theorem is seen as +being 100 \% +robust from a mathematical perspective +because of the +% ubiquitous and +widely +encompassing nature of the 1939 +Hilbert-Bernays analysis \cite{HB39} (centering around +their three +well-known +``Derivability Conditions'' \cite{Mend} ). +\item +On the other hand, our discourse +will partially +appreciate Hilbert's reluctance +to fully embrace the Second Incompleteness Theorem, +despite his +joint +work with Bernays \cite{HB39} +generalizing the Second Incompleteness Effect. +(This is +because it is awkward to explain how human beings can +% undeniable +acquire the mental energy +for motivating themselves to cogitate, +without possessing some type of instinctive faith +in their own self-consistency.) +\ene +%It is in the context where +Thus, +the current article + will seek to +separate a {\it ``mathematical''} from +what perhaps should be +{\it ``engineering-style''} + appreciation +of one's +internal consistency. We will seek to define and explore the +latter +%nature of this +%engineering notion in the current article +(with the hope that it will help formalize how future +21st century computers can benefit from its engineering-style +%% notion +perspective, +while still respecting +%%% at the same time +the strict prohibitions formalized by +G\"{o}del's millennial result.) + + +As the reader examines this paper, it should be kept in mind +that +it does +focus on +% the properties of +semantic tableaux +deduction (similar to the earlier +% more abbreviated +discussion that had +appeared in \cite{ww14}'s more abbreviated +conference-style summary of our results). +A second paper, currently under preparation, +will examine Hilbert-style deductive systems (whose +self-justification properties +are partially analogous and partly +quite +different from +% our +tableaux-style systems). +The combination of these two results will formally +define both the potential of self-justifying logics +and the limitations which the Second Incompleteness +Theorem imposes upon them. + + +%% +%% In other words, the theme of this article will be that conventional +%% interpretations of the Second Incompleteness Theorem are +%% certainly 100 \% +%% correct from a mathematical perspective. +%% as foreseen very rigorously +%% as early as 1939 +%% by Hilbert-Bernays \cite{HB39}. +%% This is because +%% no formalism can +%% recognize its own consistency in a very robust +%% strictly +%% %purely +%% mathematical +%% respect. +%% On the other hand, it also +%% seems +%% evident +%% %% appears apparent +%% % undeniable +%% that +%% human beings +%% will +%% %would +%% find it awkward +%% %be unable +%% to acquire the mental energy +%% for motivating themselves to cogitate, +%% without possessing some type of instinctive faith +%% in their own self-consistency. +%% This perhaps should be +%% called an +%% % {\it quasi- +%% {\it engineering=style appreciation} of one's +%% internal consistency. We seek to define and explore the +%% nature of this +%% engineering notion in the current article +%% (with the hope that it will help formalize how future +%% 21st century computers can benefit from this engineering-style +%% notion while, of course, respecting +%% %%% at the same time +%% the strict prohibitions formalized by +%% G\"{o}del's millennial result.) + + + +\section{Background Setting} +\label{pppp2} + + +Let + $( \alpha , d )$ +denote any axiom system +and deduction method satisfying +the +simple {\bf ``Split Rule''} +below$\,$\footnote{Our + ``Split Rule'' +is the trivial requirement + that all the axiom sentences in +$~\alpha~$ are +technically +{\it proper axioms}, and + that +deduction method $~d~$ is +required +to include +{\bf BOTH} a finite number of rules of inference +and +whatever ``logical axioms'' are needed +{\it (if any ? )} +by $\,d$'s methodology. +(This +trivial +Split-Rule +notation convention will +help us to provide a +%%hhhh +precisely formalized statement of our results. + .)}. +This pair +will +be called {\bf ``Self Justifying''} when: +\begin{description} + \item[ i ] one of $ \, \alpha \,$'s theorems +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +second + $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +requirement. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +\begin{quote} +$\bullet~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of the +system $ \alpha $ +with {\it this} +sentence ``SelfRef$(\alpha,d)$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +noted +how +to +encode +rough + analogs of + ``SelfRef$(\alpha,d)$''. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii's +requirement. + + +%% hhhh +This problem arises in +many +contexts besides + G\"{o}del's +paradigm, +where $\alpha$ was an extension of Peano Arithmetic +(see +\cite{Ad2,AZ1,BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Ko6,KT74,Lo55,Pa71,Pa72,Pu85,Pu96,Ro67,Sa12,So94,Sv7,Vi5,WP87,ww2,wwlogos,ww7}). +Such results formalize +paradigms where +self-justification is infeasible, +due to diagonalization issues. +(It should, +perhaps, + be added that among this +lengthy list of articles, +it was especially +\cite{Ad2,Bu86,Go31,Lo55,Pu85,So94,WP87}'s +incompleteness results that +influenced our +work in +\cite{ww93}-\cite{ww14}.) +% in \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}.) +In any case, the main point is that +most +logicians +have +hesitated +to + employ +an +analog of a + SelfRef$(\alpha,d)$ + axiom +because + $ \alpha^d = \alpha+$SelfRef$(\alpha,d) $ +is +typically +inconsistent. + + + + + + + + + +Our research +in \cite{ww93,ww1,ww5,ww6,wwapal} +focused on +paradigms +where +self-justification is feasible. +It +involved weakening +the properties +a +logic +can prove +about +addition and/or +multiplication +(to avoid +potential +difficulties). +To be more precise, let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote +3-way predicates +specifying +$x+y=z$ and +$x*y=z$. +Then a +logic +will be said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} iff it +includes +sentences +1-3 as axioms. + +\vspace*{- 0.4 em} +{\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + +\vspace*{- 1.2 em} + +A +logic +$\alpha$ +will be called +{\bf Type-M} iff it contains +\ref{totdefxs}-\ref{totdefxm} +as axioms, +{\bf $~$Type-A} iff it contains only +\eq{totdefxs} and \eq{totdefxa} as axioms, +{\bf $~$Type-S} iff it contains +only \eq{totdefxs} as an + axiom, and +{\bf $\,$Type-NS$\,$} iff it contains +none of these axioms. +The relationship of these constructs to +self-justification +is explained by +items (a) and (b): +\bed +\item[ a. ] +The existence of +Type-A systems that can recognize +their own +consistency under semantic tableaux deduction, +while proving +analogs of +all +Peano Arithmetic's + $\Pi_1$ theorems (in a slightly different language), +were +%%hhhh +demonstrated in +\cite{tab2,ww5}. +Also, \cite{ww1,wwapal} noted that +some +specialized +forms +of +Type-NS systems +can +likewise +recognize their +own Hilbert consistency. + + + +\item[ b. ] +The above +evasions of the Second Incompleteness +Theorem are known to be near-maximal in a mathematical sense. +This is because +the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} implied no +natural +Type-S system can recognize its Hilbert consistency, +and Willard +subsequently + \cite{ww2,ww7,ww9} +hybridized their formalisms with some techniques of +Adamowicz-Zbierski +\cite{Ad2,AZ1} +to establish that most +Type-M systems cannot recognize their +own semantic +tableaux consistency. +\ennd + + + +Other +fascinating +efforts to +evade the Second Incompleteness Theorem +have used +the Kreisel-Takeuti ``CFA'' +system \cite{KT74} +or the +the {\it interpretational framework} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to our approach +because they +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Instead, CFA uses the +special +properties of ``second order'' generalizations of Gentzen's +{\it cut-free} +Sequent Calculus, +and +the +interpretational approach +formalizes how some systems +recognize their + Herbrand consistency +on localized sets of integers, +which +unbeknownst to +themselves, +includes all +integers. +(These alternate results are interesting but +unrelated to our approach.) + + + + + + + +\section{Defining Notation and Earlier Results} +\label{pppp3} + +\label{sect3} + + + +A function $F $ +will be called {\bf Non-Growth} +iff +$ F(a_1...a_j) +\leq Maximum(a_1...a_j)$ +holds. +Six examples of +non-growth functions are +\bee +\small +\parskip 0pt +%hhhh +\item +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +\item +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +\item +$Maximum(x,y),$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +\item +$\,Root(x,y) \, = \, \lfloor \, x^{1/y} \, \rfloor~$. and +\item$Count(x,j)$ designating the number of ``1'' bits +among $ x$'s rightmost $ j $ bits. +\ene +The term +{\bf U-Grounding Function} +referred in \cite{ww5} to +a set of +primitives, +which included the +preceding +functions plus the {\it growth operations} of addition and +{\it Double$(x)=x+x$}. +Our language $L^*$ was +built +out of these +symbols, +plus the primitives of +``0'', ``1'', + ``$ \, = \, $'' +and ``$ \, \leq \, $''. + + + + +In a context where $~\, t \, ~$ is any term in \cite{ww5}'s +language $L^*$, +$\,$the quantifiers in +%% the wffs +$~ \forall ~ v \leq t~~ \Psi (v)~$ and $~ \exists ~ v \leq t~~ \Psi (v)$ +were called {\it bounded +quantifiers}. +Any formula in + $L^*$, +all of whose +quantifiers are bounded, was called +a $\Delta_0^*$ formula. +The $~\Pi_n^{* }~$ and $~\Sigma_n^{* }~$ formulae +were +then defined by the +usual +rules that: +\bee +\item +Every +$\Delta_0^*$ formula is considered to +be +``$~\Pi_0^{* }~$'' and +also + ``$~\Sigma_0^{* }~$''. +\item +A +wff +is called + $ \,\Pi_n^{* } \,$ +when it is encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ with +$\Phi$ being $\Sigma_{n-1}^{* }$ +\item +Also, +a wff +is called + $\Sigma_n^*$ +when it is encoded as +$\exists v_1 ..\exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{* }$. +\ene + +%%bbb +Our articles \cite{ww93,tab2,ww5} used the symbol $~D~$ to denote +a deduction method. +They focused mostly around the +semantic tableaux deductive methodology, +whose formal definition can be found in the textbooks +by Fitting and Smullyan +\cite{Fi90,Smul} and whose +definition is also reviewed +by Appendix A of the current article. + +%%bbb +Our articles \cite{wwlogos,ww5} +also considered an improved faster deductive technology, + called +{\bf Tab-k + deduction}, that +consists of a +speeded-up version of a +tableaux, +which +permits a +{\it limited analog} of +Gentzen-style deductive +cuts +for $\Pi_k^*$ and $\Sigma_k^*$ formulae. +Thus, if + $~H~$ +denotes a sequence of ordered pairs +$~(t_1,p_1),~(t_2,p_2),~...~(t_n,p_n),~$ +where $~p_i~$ is a Semantic Tableaux proof of the theorem $~t_i,~$ +then $H$ +has been + called a +{\bf ``Tab-k +Proof''} +of a theorem $~T~$ +from $\alpha$'s axioms + iff $~T=t_n~$ +and also: +\begin{enumerate} +\item +Each of the ``intermediately derived theorems'' +$~t_1,t_2, \, ... \, , t_{n-1}~$ +have a complexity no greater than that of +either a $\Pi_k^*$ or $\Sigma_k^*$ sentence. +\item +Each +proper axiom in $ p_i$'s +proof +comes +either +from $\alpha$ or is + one of $ t_1,t_2, \, ... \, , t_{i-1} $. +\end{enumerate} +Thus, a +Tab-k proof is essentially a generalization of a classic +semantic tableaux proof that essentially owns the equivalent of +an +extra specialized modus ponens rule for + $\Pi_k^*$ and $\Sigma_k^*$ sentences. + +Let +us say +an axiom system $\alpha$ +has a {\bf Level-J Understanding} +of its own +consistency +under a deduction method $D$ +iff $\alpha$ can prove that there exists no proofs +using +its axioms and $D$'s deduction +of both a +$\Pi_J^*$ theorem and its negation. +In this notation, items A and B summarize +\cite{sp0,ww2,wwlogos,ww5,ww7}'s +main +results: +\bed +\item[ A. ] + For +any +axiom system $A$ using $L^*\,$'s + U-Grounding language, +\cite{ww5} +showed its +IS$_D(A)$ formalism +could prove +all $A$'s $\Pi_1^*$ theorems and simultaneously +verify its +Level-1 +consistency under +\txl{1} deduction. + +\smallskip + +\item[ B. ] +Two negative results, tightly complementing +item A's +positive result, +were exhibited +in +\cite{sp0,ww2,wwlogos,ww7}. The first +was that \cite{sp0,ww2,ww7} showed +most +systems +are +unable to verify their +Level-0 consistency under +semantic tableaux +deduction, + when they included +statement +\eq{totdefxm}'s ``Type-M'' +axiom that multiplication +is a total function. Moreover, \cite{wwlogos} +offered an alternate +form +of this + incompleteness +result, +showing statement +\eq{totdefxa}'s +{\it +far weaker} +Type-A +systems +cannot +verify +their Level-0 consistency under +\txl{2} deduction. +\ennd + + + + +The contrast between these +positive and negative results +has + led to our conjecture that +automated +theorem provers +are likely + to +eventually +achieve +a fragmentary part of the ambitions +that were +suggested by Hilbert +in +$**\,$. +This is because +the question of whether a +formalism can support an +{\it idealized Utopian} +conception of +its own consistency is {\it +different} from +exploring the degrees to which +theorem-provers +can possess +a {\it fragmentary +knowledge} of +their own +consistency. +The +Incompleteness Theorem +has demonstrated +an Utopian idealized form of self-justification +is unobtainable, +but our research has found some +diluted +cousins +of this construct are +feasible +%%% hhhh +and warrant examination. + + +%%%bbbbb +In summary, +%as a reader examines the remainder of this article, +it should be kept in mind, +during the remainder of this article, +that the Hilbert-Bernays Derivability Conditions +\cite{HP91,HB39,Mend} +impose severe limits upon any evasion of +the Second Incompleteness Theorem. +% that are inexorable. +On the other hand, +it appears that a + human's + faith in his own consistency +is an essential +prequisite to gain the needed + psychological +motivation for +% cogitating. +stimulating cogitation? +% motivate to cogitate. +%cogitation, is also a non-trivial agent. +(This is why we suspect Hilbert was never willing +to concede that all facets of his consistency program +%would be +were +hopeless.) +A broad theme of this paper will, +% thus +thus, +be that it +is helpful to distinguish between the goals of +a +theoretical-oriented study of arithmetic from +that of +a more engineering-styled approach, +since the +Second Incompleteness Theorem is a perfect result +from the first perspective while it permits +for +% some +well-defined +limited-scale part-way exceptions from +the second vantage point. + +%% Above sentence replaces below + + +%% Our interest in +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% was +%% % stimulated by such +%% raised by these +%% considerations. + + +%% It is for this reason that +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% from the preceding two paragraphs, +%% warrant investigation. +%% +%are so important. + + +%% Their +%% two subtle contrasts will be our +%% main +%% focus +%% % of our attention +%% %in the remainder of this article. +%% in the rest of this article. +%% + + +\section{The IS$_D(A)$ Axiom System} +\label{pppp4} + + +\label{sect4} + +In a context where $~A~$ denotes any axiom +system using + $L^*\,$'s +U-Grounding language, IS$_D(A)$ +was defined +in \cite{ww5} +to be an axiomatic +formalism capable of recognizing all of +$A$'s $\Pi_1^*$ theorems and +corroborating +its own Level-1 consistency under $D$'s deductive method. +It +consisted of the +following four +groups of axioms: +\begin{description} +\item[Group-Zero:] +Two of the Group-zero axioms +did +% will +define +the +constant-symbols, +$\bar{c}_0$ +and $\bar{c}_1$, +designating the integers of 0 and 1. +The +Group-zero axioms +will +also define the +growth functions of addition and +$~Double(x) \, = \, x+x.~$ +The +net effect of these +axioms will be to set up a machinery to +define +any +integer +$~n \geq 2~$ +using fewer than +$3 \cdot \lceil \, $Log$~n~ \rceil \,$ +logic symbols. + + + + + +\item[Group-1:] +This axiom group +did +% will + consist of a +finite set of $\Pi_1^{*} $ sentences, denoted as $~F~$, which +can prove any $\Delta_0^*$ sentence that +holds true under the standard model of the natural numbers. +(Any finite set of +$\Pi_1^{*} $ sentences $~F~$ +with this property +may be used to define Group-1, +as \cite{ww5} noted.) + + + +\item[Group-2:] +Let $\ulxyz \Phi \urxyz$ denote +$\Phi$'s G\"{o}del Number, and +HilbPrf$_A(\ulxyz \Phi \urxyz,p)$ denote a +$\Delta_0^{*} $ formula indicating +$~p~$ is a +Hilbert-styled proof of +theorem $~\Phi~$ from +axiom system $A$. +For each $\Pi_1^{*} $ sentence $\Phi$, the +Group-2 schema +of \cite{ww5} +did +% will + contain an axiom of +form \eq{group2}. +(Thus IS$_D(A)$ can trivially prove + all $A$'s +$\Pi_1^{*} $ theorems.) +\begin{equation} +\forall ~p~~~\{~ \mbox{HilbPrf$_A(\ulxyz \Phi \urxyz,p)$} + ~~ +\Rightarrow ~~ \Phi~~\} +\label{group2} +\end{equation} +\item[Group-3:] +This final part of the IS$_D(\aaa)$ +essentially represented +% will be +a +self-referencing +$\Pi_1^*$ +axiom, +indicating +IS$_D(\aaa)$ meets +\textsection 3's criteria of being +``Level-1 consistent'' +under deductive method $D$. +It +amounts, +%is, +thus, +to the following declaration: +\begin{quote} +\# $~${\it No two +proofs exist +for +a $\Pi_1^{*} $ sentence +and its negation, when +$D$'s deductive method is applied to an axiom system, +consisting of +the {\it union} +of +Groups 0, 1 and 2 with {\bf $\,$this sentence$\,$} +(looking at itself).} +\end{quote} + +One encoding of \#, +$\,$as a self-referencing +$\Pi_1^{*} $ +axiom, +appears + in +\cite{ww5}. +%% hhhh0000000000 +Thus, +the +below +sentence +\eq{group3} +represents +\cite{ww5}'s +$\Pi_1^{*}\, $ styled +encoding for$~$ + \# +in a context where: +\bed +\item[ i. ] +$~~\mbox{Prf} \, _{\mbox{IS}_D(A)}(a,b) \, $ is +a + $\Delta_0^{*} $ formula +indicating +that +$ \, b \, $ is a proof + of a theorem $\, a\,$ +under + $\mbox{IS}_D(A)$'s axiom system +and $D$'s deduction method, +$\,~$and +\item[ ii. ] +$~~$Pair$(x,y)$ is a $\Delta_0^{*} $ formula +indicating +that $ \, x \, $ is a + $\Pi_1^{*} $ sentence +and +% that + $ \, y \, $ +represents +$ \, x \,$'s negation. +\end{description} +%% A summary of the formal techniques that +%% \cite{ww5} used to encode +%% sentence +%% \eq{group3} is provided in Appendix B. +\end{description} +\begin{equation} +\forall ~x~\forall ~y~\forall ~p~\forall ~q~~~~ \neg ~~ +[~~ \mbox{Pair}(x,y)~ \wedge ~ +~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(x,p)~ +\wedge ~ ~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(y,q)~ ] +\label{group3} +\end{equation} + +\begin{remark} \label{remc} +\rm +A +fully formal +summary of the techniques that +\cite{ww5} used to encode +%the +sentence +\eq{group3} is provided by +the combination of Appendices B and C. +The former appendix summarizes our +methods for generating the G\"{o}del numbers +of semantic tableaux and \txl{k} proofs +in an optimally compressed manner. +The latter appendix explores how +sentence +\eq{group3}'s self-referencing statement is precisely encoded. +\end{remark} + +{\bf Notation.} An operation $~I(~\bullet~)~$ that maps +an initial axiom system $\,\aaa \,$ onto an alternate +system $\,I(\aaa)\, $ will be called {\bf Consistency Preserving} +iff $\,I(\aaa)\, $ is consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers. In this +context, +\cite{ww5} demonstrated: + + +\begin{theorem} +\label{ttt1} +\label{thold} +Suppose +the symbol $D$ denotes either semantic +tableaux deduction or its \txl{1} generalization. +Then the IS$_D(~\bullet~)~$ mapping operation is consistency preserving +(e.g. +IS$_D(\aaa) $ +will be consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers). +\end{theorem} + +We emphasize +the most difficult part of \cite{ww5}'s +result was +neither the definition of its +IS$_D(\aaa) $'s axiom system nor the +$\Pi_1^*$ fixed-point + encoding of \eq{group3}'s Group-3 axiom. +Instead, +the key challenge + was the +confirming +of \thx{thold}'s +``Consistency Preservation'' +property. + + +The +confirming of +this +property +is +subtle +because its invariant breaks down when +$~D~$ is a deduction method only slightly stronger than +either semantic tableaux or \txl{1} deduction. +Thus, Pudl\'{a}k's and Solovay's +work \cite{Pu85,So94} +implies \thx{thold}'s analog fails when $D$ represents +Hilbert deduction, and \cite{wwlogos} showed its generalization + fails +even when $D$ represents \txl{2} deduction. + + + + + + + + +\section{A Finitized Generalization of \thx{thold}'s Methodology} +\label{pppp5} + + +\label{sect5} + +%%%mmmm +One +difficulty with IS$_D(\aaa)$ +was +is +that it +employed +an infinite number of different +incarnations of +sentence \eq{group2} +in its Group-2 scheme (since it contained one incarnation +of this sentence for each $\Pi_1^*$ sentence $\Phi$ in +$L^*\,$'s language). Such a Group-2 schema is awkward because +it simulates $A$'s +$\Pi_1^*$ +knowledge almost via a brute-force +enumeration. + + +Our Definition \ref{dd-is2} and Theorems +\ref{ttt2} and \ref{ttt3} will show how +to +mostly +overcome this problem by +compressing the infinite number +of +instances of sentence \eq{group2} in +IS$_D(\aaa)$'s Group-2 schema into +a purely finite structure. + +\smallskip + +\begin{definition} +\label{dd-is2} +\rm +Let $~\beta~$ denote any +finite set of +axioms that have + $\Pi_1^*$ encodings. +Then +\I2 +will denote an axiom system, +similar to IS$_D(\aaa)$, except +its Group-2 +scheme will employ $~\beta\,$'s set of axioms, +instead of using an infinite number of applications +of +statement \eq{group2}'s scheme. +(Thus, +the +{\it ``I am consistent''} statement +in \I2's Group-3 +axiom will be the same as before, except that +the {\it ``I am''} +fragment of its +self-referencing +statement +will reflect +these + changes in Group-2 in the obvious manner.) +\end{definition} + + + +\begin{theorem} +\label{ttt2} +Let + $D$ again denote either +semantic +tableaux +or \txl{1} deduction, +and $\beta$ again denote a set of +$\Pi_1^*$ axioms. +Then +\I2 +will be consistent whenever all +$\beta$'s axioms hold +true under the standard model. +(In other words, + \I2 +will satisfy an analog of \thx{ttt1}'s +consistency preservation property for IS$_D(\aaa) $.) +\end{theorem} + +%%bbbb +\thx{ttt2}'s +proof +is almost identical to +\cite{ww5}'s proof of \thx{ttt1}. +Its proof is too lengthy to repeat here. +Instead \textsection \ref{newppp9} +will +briefly summarize its +%% +%% provide +%% a +%% brief +%% %detailed +%% % an intuitive +%% summary +%% of the +%% formal +%% % germane +%% +proof. +This +abbreviated discussion +%% discourse +should be sufficient to explain +the gist behind the +proof's core +%needed +formalism, +%proofs, +without delving into +\cite{ww5}'s +full +%%%%% too many +%full +% formal +details. + +%%bbbb +Our next definition will enable us to formalize +the main application of +\thx{ttt2} that will be considered +here. +%during the present article. +It will essentially explain how +{\bf finite-sized} + self-justifying + logics + can provide an + {\bf infinite amount } + of + ``kernelized'' + $\Pi_1^*$ +styled +information. + + + +%%% It will. +%%% not be +%%% repeated in this extended abstract. +%%% Instead, +%%% this section +%%% will apply +%%% \thx{ttt2} +%%% to +%%% show how +%%% {\bf finite-sized} +%%% self-justifying +%%% logics +%%% can provide an +%%% {\bf infinite amount } +%%% of +%%% ``kernelized'' +%%% $\Pi_1^*$ information. +%%% + +\begin{definition} +\label{dkern} +\rm +Let +Test$_i(t,x)$ +denote any $\Delta_0^*$ formula, +and $~\ulcorner \Psi \urcorner ~$ denote +$\, \Psi\,$'s G\"{o}del number. Then +Test$_i(t,x)$ will be called a {\bf Kernelized Formula} +iff Peano Arithmetic can prove every $\Pi_1^*$ sentence +$~\Psi~$ satisfies \eq{testker}'s +identity: +\beq +\label{testker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +There are +infinitely +many + $\Delta_0^*$ predicates +Test$_1(t,x)$, Test$_2(t,x)$, Test$_3(t,x)$ ... +satisfying this kernelized condition +(one of which is illustrated by Example \ref{eex1}). +An enumerated list of all +the available kernels +is +called a {\bf Kernel-List}. +\end{definition} + +\begin{example} \label{eex1} \rm +The set of +true $\Sigma_1^*$ sentences is +r.e. +This +implies +there +exists a $\Delta_0^*$ formula, +called say Probe$(g,x)$, +such +that $~g~$ +is +the G\"{o}del number of +a $\Sigma_1^*$ statement that holds true in the Standard +Model +if and only if +%iff +\eq{e-probe} is true: +\beq +\label{e-probe} +\exists ~x~~~ \mbox{Probe}(g,x)~\wedge~ x \geq g +\enq +Now, let Pair$(t,g)$ denote a $\Delta_0^*$ formula +that specifies $~t~$ is the G\"{o}del number of +a $\Pi_1^*$ statement and + $~g~$ is +the $\Sigma_1^*$ formula which is its negation. +Then our notation implies +that + $~t~$ +is +a true + $\Pi_1^*$ statement +if and only if \eq{e-2probe} holds true: +\beq +\label{e-2probe} +\forall ~x~~~ +\neg~[~\exists ~g ~\leq~x~~~~~ \mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)~~] +\enq +Thus if +Test$_0(t,x)$ +denotes the $\Delta_0^*$ formula of +$~ \neg~[~\exists ~g \, \leq \, x~~ +\mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)]$, +it +is one example of what +Definition \ref{dkern} +would +call a +``Kernelized Formula''. +\end{example} + +\begin{definition} +\label{def3} +\rm +Let us recall +Definition \ref{dkern} +defined +{\bf Kernel-List} to be an enumeration of +all the +kernelized formulae +Test$_1(t,x)$, + Test$_2(t,x)$, Test$_3(t,x)...~$. +Assuming +Test$_i(t,x)$ is the $i-$th element in this +list +and +$\Psi$ is an arbitrary $\Pi_1^*$ sentence, +the +{\bf i-th Kernel Image} +of $\, \Psi \,$ + will be +defined as +the +following $\Pi_1^*$ +sentence: +\beq +\label{imagker} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +\end{definition} + +\begin{example} \label{eex2} \rm +The Definitions +\ref{dkern} +and \ref{def3} suggest that there is a + subtle relationship +between a sentence $~\Psi~$ and its $i-$th kernel image. +This is because +Definition \ref{dkern} +indicates that Peano Arithmetic can prove the invariant +\eq{testker}, indicating that + $~\Psi~$ +is equivalent to + its $i-$th kernel image. +However, a weak axiom system +can be plausibly uncertain about +whether this +equivalence +does formally hold. +This invariant is duplicated below: +\beq +\label{againtestker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq + +% equivalence holds. + +%mm% +Thus if a weak axiom system proves statement +\eq{imagker} (rather than $~\Psi~$), +it +%% may +will + not be able to equate these +two +results +(unless it is able to verify +\eq{againtestker}'s identity). +This problem will apply to \thx{ttt3}'s +formalism. +However, \thx{ttt3} will +% be +still +remain + of much interest +because \textsection \ref{pppp6} will +illustrate a +methodology that +can overcome +many of \thx{ttt3}'s limitations. +\end{example} + + + + + + + +\begin{theorem} +\label{ttt3} +Let $~A~$ denote any +system, +whose + axioms hold +true +in arithmetic's standard model, +and $~i~$ denote the index +of any of +Definition \ref{dkern}'s +kernelized formulae + Test$_i(t,x)$. +Then it is possible to construct a +finite-sized +collection of $\Pi_1^*$ sentences, called say + $\beta_{A,i}$, +where +\ik3 +satisfies the following invariant: +\begin{quote} +If $~\Psi~$ is one of the +$\Pi_1^*$ theorems of + $~A~$ +then \ik3 can prove +\eq{imagker}'s +statement + (e.g. it will prove the +``the $\, i-$th kernelized image'' +of +$~\Psi\,$). +\end{quote} +\end{theorem} + +\newpage + +\noindent +{\bf Proof Sketch:} +Our justification of +\thx{ttt3} will +use the following notation: +\bee +\item +Check$(t)$ will denote a $\Delta_0^*$ formula +that +produces a Boolean value of ``True'' when +$t$ represents the G\"{o}del +number of a $\Pi_1^*$ sentence. +\item + $~\mbox{HilbPrf}_A \,( t , q )~$ +will denote + a $\Delta_0^*$ formula that indicates +$~q~$ is a Hilbert-style proof of the theorem +$~t~$ from axiom system $~A~$. +\item +For any kernelized +Test$_i(t,x)$ +formula, GlobSim$_i$ +will +denote \eq{globsim}'s $\Pi_1^*$ sentence. +(It will be called $A$'s $i-$th +{\bf ``Global Simulation Sentence''}.) +\ene +\beq +\label{globsim} +\forall ~t~~ +\forall ~q~~ +\forall ~x~~\{~~ +[~~\mbox{HilbPrf}_A \,( t , q )~~ \wedge ~~ +\mbox{Check}(t)~~]~~~ +\Longrightarrow ~~~ +\mbox{Test}_i(t,x)~~~ \} +\enq + +%%mm +In this notation, +%%%the requirements of +\thx{ttt3} +shall +%will +be satisfied by any +version of the axiom system \I2, whose Group-2 schema $~\beta~$ +is a finite sized +consistent set of $\Pi_1^*$ sentences +that has +\eq{globsim} +as an axiom. +(This includes +the minimal sized such system, +% which we will +denoted as $~\beta_{A,i}~$, +that has only \eq{globsim} as an axiom.) +This is because +%Thus, +if +$\Psi$ is any +$\Pi_1^*$ theorem of $A$ whose proof +is denoted as $~\bar{p}~$, then both the +$\Delta_0^*$ predicates of +$\mbox{HilbPrf}_A \,( \ulxyz \Psi \urxyz , \bar{p} )$ and +$\mbox{Check}( \ulxyz \Psi \urxyz )$ +will hold true. +%are true. +Moreover, +IS$^{\#}_D$'s +%%%%%%%%%%%%%% \I2's +Group-1 axiom subgroup was defined so that +it can automatically prove all + $\Delta_0^*$ sentences that are true. +Hence, +%Thus, + \ik3 will + prove these two statements and +then automatically +%hence +corroborate (via axiom +\eq{globsim}) the further statement +of: +\beq +\label{interm} +\forall ~x~~ +\mbox{Test}_{\, i \,}(~ \ulxyz \Psi \urxyz ~,~x~ ) +\enq +%Hence +Thus +for each of the infinite number of $\Pi_1^*$ +theorems that $~A~$ proves, the above defined +formalism will prove a matching statement +that corresponds to +its +%% the + $\, i-$th kernelized image. $~~\Box$ + + +%% of +%% each +%% such proven theorem. +%% $~~\Box$ + +\section{ L-Fold Generalizations of \thx{ttt3} } +\label{pppp6} + + + + +\thx{ttt3} +is of +interest +because every axiom system $\,A\,$ +will have +its formalism +\ik3 +prove the + $\, i-$th kernelized image of every + $\Pi_1^*$ theorem that $A$ proves. +This fact is helpful +because +\eq{testker}'s invariance +holds for all $\Pi_1^*$ sentences. +Moreover, our +``U-Grounded'' +$\Pi_1^*$ sentences +capture all +Conventional Arithmetic's +{\it crucial} +$\Pi_1$ +information +because they can +view +multiplication as a 3-way + $\Delta_0^*$ +predicate +Mult$(x,y,z)$ +via +\eq{neweq1}'s +encoding of this predicate. +\begin{equation} +\label{neweq1} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x} \, 100~$? +%hhhh +Is the use of +such a sequence +%use, +for corroborating the Second Incompleteness +Effect +% , thus essentially, +%thereby +resting +% , essentially, +%, at least partially, +upon an +% an inherently +almost +artificial construct +(with + an +inherently +dizzying growth rate) ? +\end{quote} + + + +We will not attempt to derive a Yes-or-No answer to Question $***$ +because +we think that such a direct +response +%%% answer +is too simplistic. +Our point is that +both a positive and negative reply to + $***$ +are useful in different respects. +%% +%% it +%% is one of those epistemological questions that can be +%% debated +%% endlessly. +%% Our point is that $***$ +%% probably does not require a definitive +%% positive or negative answer because both perspectives +%% are useful. +%% +%% Thus, +%% the theoretical existence of a sequence +This because +the theoretical existence of a sequence +integers +of $ y_0, y_1, y_2, ... $, whose binary +encodings are doubling in length, is tempting +from the perspective of +an Utopian view of mathematics, while +awkward from an engineering styled +perspective. +We therefore ask: {\it ``Why not be tolerant +of both perspectives? ''} + +One virtue of +this tolerance is +it +ushers in +a greater understanding +for the statements $*$ and $**$ that G\"{o}del and +Hilbert made during +1926 and 1931. +This +is +because the +Incompleteness Theorem +demonstrates +no +formalism can display +an understanding of its own consistency in an +idealized + Utopian +sense. On the other hand, +\textsection 6 +suggested +these +two +remarks by G\"{o}del and Hilbert + might receive +more sympathetic interpretations, +if one +sought to explore +such questions from a less ambitious +almost engineering-style perspective. + + + + +Our +main thesis is +supported by a +theorem +from \cite{ww6}. It indicated that +tableaux +variations of self-justifying systems have no difficulty +in recognizing that an infinitized generalization of +a computer's +floating point multiplication (with rounding) is a total +function. The latter +differs from integer-multiplication, +by not having its output become double the length of +its input when a number is multiplied by itself. +Thus, the +intuitive +reason +\cite{ww6}'s + multiplication-with-rounding operation +is compatible with self-justification is +because it + avoids the +inexorable +exponential +growth under +rule \eq{smart-squeeze}'s sequence + $ y_0, y_1, y_2 .. ~ $. + +\bigskip + + +%\newpage + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + +%% bbbbbbb +Also, \thx{ttt4} indicates +self-justifying logics +can view +double-precision +integer multiplication +similarly +as + a total function. +In particular for +any arbitrary pair +of integers + $(a,b)$, +let us employ a notation convention where: +\bee +\item +{\bf Size(a,b)} denotes the maximum of +$ \, \lceil \, 1 \, + \,$Log$_2 \,a \, \rceil \, $ +and +$ \, \lceil \, 1 \, + \,$Log$_2 \,b \, \rceil \, $. +% $\, 1 \, + \,$Log$_2 \,b \,$. +\item The quantities +{\bf Left$(a,b)$} +and {\bf Right$(a,b)$} +represent the multiplicative product +of +the integers +$~a~$ and $~b~,~$ insofar as +Right$(a,b)$ +represents the rightmost bits of this product +of length Size(a,b), and +Left$(a,b)$ encodes the remaining bits to the left +of Right$(a,b)$ +(whose length will also be bounded by Size(a,b) ). +\ene +Within this context, +\thx{ttt4} indicates +self-justifying logics +self-justification +are able to view double-precision +integer-multiplication as +a total function. + +%% bbbbb +\begin{theorem} +\label{ttt4} +Let us assume +the $ \,A \,$ in +IS$_D(\aaa)$ and +$\ \beta \,$ in +\I2 +are axiom systems all of whose $\Pi_1^*$ +theorems are true statements under the standard model +of the natural numbers. +Then +if $D$ corresponds to either semantic tableaux or +\txl{1} deduction, +it is possible to formalize +systems +$~A^* \, \supseteq \, A~$ +and +$~\beta^* \, \supseteq \, \beta~$ +such that \js and \ns are self-justifying +extensions of respectively +IS$_D(\aaa)$ and +\I2 +which can recognize +%that +each of +the +double-multiplicative precision +operations of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ +%(that define the double-precision multiplicative product +%of $a$ and $b$) +as total functions. +\end{theorem} + +%% bbbbb +{\bf Proof Sketch;} The justification of \thx{ttt4} +is +% very +similar to +\cite{ww6}'s analysis of +Floating Point Multiplication +(with rounding). Our proof of \thx{ttt4} +will therefore be quite abbreviated. + +%% bbbbb +The first point is that it is +% quite +straightforward +to develop three $\Delta_0^*$ formulae, +called $\theta_1(a,b,y)$, + $~\theta_2(a,b,y)$ +and + $\theta_3(a,b,y)$, +that are the graphs of the functions + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +% Moreover, it +It +is also easy to construct a +finite set of $\Pi_1^*$ sentences, +holding true in the Standard Model, +called $~\gamma~$, +that know how to correctly interpret these three + $\Delta_0^*$ formulae, +insofar as $~\gamma~$ knows: +\bee +\item For each +%fixed +$a$ and $b$, there exists no more +than one integer $~y~$ that satisfies each of our +three $\theta_j(a,b,y)$ formulae. +\item For each +%fixed +$a$ and $b$, +our three $\theta_j(a,b,y)$ formulae +correctly simulate +the +graphs of +the respective +functions of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +\ene +%Moreover since +Since +our U-Grounding language contains the built-in +function primitives of ``Maximum'' and``Double$(x)$'', +the Group-1 component of +IS$_D$ +and IS$_D^{\#}$ +% formalisms +can +easily +verify that +the + operation +$F(a,b)$, defined below is a total function: +\beq +\label{F-def} +~F(a,b)~~=~~\mbox{ Double (Double (Double (Max}(a,b)))) +\enq +This implies, in turn, that +there exists a $\Pi_1^*$ sentence, called $\gamma^*$, that +will enable our formalism to verify that each of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ are total functions (simply because +their output values are less than +$~F(a,b)$'s output). + +The main point is that the hypothesis of \thx{ttt4} + indicated that +all the axioms of + $ \,A \,$ and +$\ \beta \,$ +did hold +true under the Standard Model, +and the preceding paragraph showed the same +was + true for all the axioms in + $~\gamma~$ and $~\gamma^*~$, +Hence all the axioms in +$~A^*~=~A~+~ \gamma~+~\gamma^*~$ +and +$~\beta^*~=~\beta~+~ \gamma~+~\gamma^*~$ +also +hold true in the Standard Model. +By Theorems \ref{ttt1} and \ref{ttt2}, +this implies that +IS$_D(\aaa)$ and +\I2 and are self-justifying formalism +satisfying \thx{ttt4}'s claims. $~~\Box$ + + + +%% \ik3 +%% represents Peano Arithmetic. Then +%% IS$_D(\aaa)$ and \ik3 +%% can formalize +%% two total functions, called Left$(a,b)$ +%% and Right$(a,b)$, +%% where any pair +%% of integers +%% $(a,b)$ +%% is mapped onto +%% the left and right halves of +%% $a$ and $b$'s multiplicative +%% product. + + +\begin{remark} +\rm +\label{rem-new} +One +subtle +%% slightly tricky +aspect is that our positive +results, +involving +\cite{ww6}'s +floating point multiplication +primitive +and \thx{ttt4}'s +analogous +double precision multiplication +operation, +{\it should +not be confused} with a +quite different +exploration of integer multiplication +in the context of our analysis of Herbrand +consistency +in \cite{ww9}. +The latter took advantage +of the fact that +our deployed + Herbrand-styled proofs +%%% in \cite{ww9}'s paradigm , are +in \cite{ww9} were +exponentially +longer than their +tableaux +counterparts +(thus allowing \cite{ww9} +to formalize +a limited use of multiplication). +This was because +% its +\cite{ww9}'s +deductive +methods +were +%%%%% were, inherently, +exponentially +less efficient +at an inherent +level. +Thus + \cite{ww9}'s result, +while +of +%somewhat +%% +%%certainly +%%perhaps +%% +theoretical +%theoretically +interest, +is +%essentially +%%% hhhhh +basically +irrelevant to +the core +engineering environments, +%e.g. +which +constitutes +% are +the + main +% central +focus of + Theorems \ref{ttt1}--\ref{ttt4}. +%% +%% (especially in regards to their +%% particular interpretations +%% given in +%% Remark \ref{rem2}). +%% +\end{remark} + + +%% In other words, Remark \ref{rem-new}'s +%% observation is, once again, connected to +%% the crucial distinction between +%% % an +%% engineering +%% and mathematical viewpoints +%% about +%% the +%% significance of theorem-proving. + + + +%%%bbbb +Remark \ref{rem-new}'s +contrast between + \cite{ww9}'s results and \thx{ttt4} + is, once again, connected to +the distinction between +the +engineering +and mathematical viewpoints +about + the main +intentions +%importance +%significance +of theorem-proving. +% From an engineering perspective, +\thx{ttt4} +is helpful +from an engineering perspective +because most +% of the +pragmatic +%engineering +applications +of integer multiplication +are analogous to either +%% +%% correspond to +%% essentially +%% % what correspond to be +%% the standard computerized word-oriented integer-multiplication +%% primitive +%% %operations +%% or +%% its +%% %their +%% conventional +%% + computerized double-precision +multiplication or its +quadruple-precision or hexagonal +% -precision +% computerized +generalizations. + +\thx{ttt4} +(and its quadruple-precision +and +% hexagonal-precision generalizations) +hexagonal generalizations) +% helpfully +indicate +% such +these +% pragmatic +operations are +% fully +compatible with a formalism recognizing its own +semantic tableaux +%and \txl{1} +consistency. + +\section{A Different Type of Evidence Supporting +Our +Thesis} + +\label{pppp8} + + +Let us recall + Pudl\'{a}k and Solovay +\cite{Pu85,So94} +observed +that +essentially all +Type-S +systems, +containing merely +statement \eq{totdefxs}'s +axiom that successor is a total function, +cannot verify their own consistency under +Hilbert deduction. +(See also related work by +Buss-Ignjatovic \cite{BI95}, +H\'{a}jek and + \v{S}vejdar \cite{Sv7}, +as well as \cite{ww1}'s +Appendix A.) + + +It turns out that +\cite{wwlogos} generalized +these + results to +show that +\ep{totdefxa}'s +Type-A +systems are unable to verify their +own consistency under the +\txl{2} deduction +system +(defined +in +\textsection + \ref{pppp3}). +At the same time, +the IS$_D$ +and IS$^{\#}_D$ +frameworks, +from Sections \ref{pppp4} + and \ref{pppp5}, can verify +their own consistency under +\txl{1} deduction. Our goal in this section will be to +illustrate how the +tight + contrast between these positive and negative +results +is +analogous to the differing growth rates +of +the +sequences +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from + rule \eq{smart-squeeze}. + + + + +During our discussion +$~G_i(v)~$ will denote +the scalar-multiplication +operation that maps +an integer $~v~$ onto +$~ 2^{2^i}\cdot v~$. +Also, $~\Upsilon_i~$ will denote +the statement, in the U-Grounding language, that +declares that + $~G_i~$ is a total function. +Our paper \cite{wwlogos} +proved that $~\Upsilon_i~$ has +a $\Pi_2^*$ encoding. It also implied that $~G_i~$ +satisfied: +\beq +\label{e-Gi} +G_{i+1}(v) ~~~ = ~~~ G_i(~ \, G_i(v)~ \, ) +\enq +It was +noted in \cite{wwlogos} that +this identity +implies one +can construct +an axiom system $ \beta $, comprised of +solely $\Pi_1^*$ sentences, +where +a semantic tableaux proof +can establish +$ \Upsilon_{i+1}$ +from +$ \beta+\Upsilon_i$ +in a constant number of steps. +This implies, in turn, that a \txl{2} proof from +$ \beta $ will require no more that O$(n)$ steps +to prove $ \Upsilon_{n}$ (when it uses the obvious +n-step process to +confirm in chronological order +$~\Upsilon_1 \, , \, \Upsilon_2 \, , \, ... \Upsilon_n ~.~~)$ + + +\smallskip + +These observations are significant because +$G_n(1)=2^{2^n}$. +Thus, +\cite{wwlogos} +% showed +established that +a \txl{2} proof +from $\beta$ can verify +in +only + O$(n)$ steps +that this +quite large + integer exists. + + +\smallskip + +This example is helpful because it illustrates +the difference between the growth speeds +under +\txl{1} and \txl{2} deduction, is analogous +to the +differing +growth +rates +of +the +sequences $ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from rule \eq{smart-squeeze}. +Hence once again, a faster growth-rate +will usher in +the Second Incompleteness Theorem's power +(e.g. see \cite{wwlogos}). + + +This analogy suggests +that the +Second +Incompleteness +Theorem has different implications from the perspectives +of +Utopian and engineering +theories about + the intended +applications of mathematics. Thus, a Utopian +may possibly be + comfortable +with +a +perspective, that contemplates sequences + $ y_0, y_1, y_2, ... $ +with +elements growing in length +at an exponential speed, but many engineers may be +suspicious of such +growths. + + + + + + +A hard-core engineer, +in contrast, might + surmise that the inability of self-justifying +formalisms to be compatible with \txl{2} deduction is +not +as disturbing + as it might +initially +appear to be. +This is +because \txl{2} +differs from + \txl{1} deduction +by producing +exponential growths that are so sharp +that their material realization has no analog +in the everyday mechanical reality that is the +focus of an engineer's +interest. + +Our personal preference is for +a perspective lying +half-way +between +that of an Utopian mathematician and +a hard-nosed engineer. +Its +dualistic +approach +suggests +some form of diluted +partial agreement +with Hilbert's goals +in $**$ (in a context where the broad significance of +the Second Incompleteness Theorem is obviously +undeniable). + + + + + + + + +\section{Outline of \thx{ttt2}'s Proof and +% Exploration of +% Further Discussion +Its Implications} + +\label{new9} +\label{newppp9} + + +The prior two sections of this article +offered an intuitive explanation about why our +self-justifying axiom systems needed omit the +assumption that multiplication is a total function +and +could verify their consistency +% verified their own consistency +only + under +% for +semantic tableaux and +\txl{1} deduction. + + +%%% \txl{1} deduction +%%% (rather than a stronger \txl{2} +%%% rule of inference). + + +We already noted +%that +\thx{ttt2}'s +observation that + IS$_D^{\#}$ +%% proof +%% that +is consistency-preserving +%transformation +has essentially an +analogous +% hhhh +%identical +proof as \cite{ww5}'s +demonstration that +%\K1 + IS$_D$ +is consistency-preserving. +It is not our intention to repeat +such a proof here. + +%%a +%%virtual +%% analog of +%%\cite{ww5}'s proof here. + +Instead, our goal will be to provide a brief overview +of the techniques +%appeared in \cite{ww5}'s proof. This +that \cite{ww5} +had +used. This +overview +will be +% brief but +%%% +%%% will not delve into all \cite{ww5}'s details. +%%% It will, +%%% however, be +%%% +sufficient +for +% so that +a reader +to +% can quickly +appreciate +the +% main +underlying +intuition. + +%the underlying intuition. + + +%%gain an intuition behind the +%%underlying nature +%% of Theorems \ref{ttt1} +%%and \ref{ttt2}. + +\bigskip + +More precisely, +two different types of proofs of \thx{ttt1} +had appeared in our 2002 conference paper \cite{tab2} +and subsequent journal paper \cite{ww5}. The +latter +%result +was more appropriate for an archival +journal because its self-justification result +applied to both semantic tableaux deduction and its +\txl{1} generalization. +The more compressed conference paper +\cite{tab2} proved the analog of \thx{ttt1} +only for tableaux deduction +(using a technique +% thus +that was +%pleasantly +somewhat +shorter +than \cite{ww5}'s more elaborate +result). +Our +% brief +summary of \thx{ttt1}'s +proof, +here, + will focus on the semantic tableaux deduction +methodology so it can apply to either of +\cite{tab2} +or \cite{ww5}'s +methods. +%results. + +%% +%%Our discussion +%%%in this section +%%will focus mostly on +%%\cite{ww5}'s more +%%sophisticated +%% result, but it should +%%be also helpful to readers who +%%wish to +%%examine only +%%\cite{tab2}'s +%%simpler +%%but +%%%% +%%%% and slightly simpler +%%%% presentation of a +%%%% +%%less ambitious result. + +Both of \cite{tab2,ww5} +%% had +% formalisms were +justified \thx{ttt1} +by means of proofs by +contradiction. +Thus if \thx{ttt1} +was false, +they +% both +noted +% then there would exist +%two +a pair of +proofs +%of +for +a $\Pi_1^*$ sentence and its negation +would exist +from +IS$_D(\aaa) $. + + + +Let us call these two proofs $P$ and $Q$. +Then \cite{tab2,ww5} both +showed +(using different constructions) that +one could construct from $(P,Q)$ +two other proofs $(p,q)$ of another +$\Pi_1^*$ sentence and its negation +such that: +\beq +\label{catch} +\mbox{Max}(p,q) ~~ < ~~ +\mbox{Max}(P,Q) +\enq +The inequality in \eq{catch} +is significant because it +will enable our proofs-by-contradiction to establish + the non-existence +of an ordered pair + $(P,Q)$ violating \thx{ttt1}'s assumption. +This is because +%otherwise +\eq{catch} +would +otherwise +violate the Principle of Induction by showing +there exists no such minimal ordered pair + $(P,Q)$ +eschewing \thx{ttt1}'s formalism. + +The +exact +details of these proofs by contradictions are too lengthy +%for us +to fully summarize +% them +here. +For the case where $D$ in \thx{ttt1} +is the semantic tableaux deduction method, they used the fact +that if $(P,Q)$ was the ordered pair with +minimal $ \mbox{Max}(P,Q)$ value violating +\thx{ttt1}'s hypothesis, +then one could +isolate +two +particular root-to-leaf paths in the tableaux +proofs $P$ and $Q$ that would enable us to construct an +additional pair $(p,q)$ +that violated \thx{ttt1} and satisfied +\eq{catch}'s inequality. + +This construction of + $(p,q)$ from $(P,Q)$ +utilized the fact that + \thx{ttt1}'s +axiom system + IS$_D(\alpha) $ recognized addition but not multiplication +as a total function. +Otherwise, \thx{ttt1}'s delicate +proof-by-contradiction would collapse entirely +(as a result of +the exponentially faster growth +properties +of multiplication +that was formalized by the +series + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship). + + +These observations reinforce the theme of +\textsection \ref{pppp7} +about the contrast between the slower growing series + $ x_1, x_2, x_3, ... $ +and its exponentially faster counterpart + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship. +These two series defined the +% respective +growth rates produced by the addition and +multiplication function symbols +% with +as, respectively, +$ \, x_n \, = \, 2^{ n+1} \, \, $ and +$ \, y_n \, = \, 2^{2^n} \, $. +They +thus illustrated +% thus, once again, illustrate +how multiplication's faster growth rate +leads to such a +%% +%% The themes of Sections \ref{ppp7} and +%% \ref{ppp8} was that the latter growth rate +%% represented a +%% +dizzying exponential speed-up, +that +% will +% would +makes +one at least partially sympathetic to a +hard-nosed engineer's skepticism about +its +implications. + +%significance. + +Thus if one were to +preclude such a dizzying growth rate then +a partial justification of a diluted version +of Hilbert's consistency program would arise, +in the context of systems possessing +{\it weak but well defined} knowledges of +their own consistency. +On the other hand, if the conventional assumption +that multiplication is a total function is presumed, +then the traditional interpretation of the +Second Incompleteness Theorem will +% , of course, fully +prevail. + + +%% +%% +%% Hence some partial caveats can be attached to the +%% Second Incompleteness Theorem that carry some +%% credibility from an hard-nosed engineering +%% perspective, while +%% simultaneously +%% they +%% fail to apply to a +%% %at the same time not +%% %be germane to a fully +%% pristine +%% mathematical +%% perspective +%% focused around the +%% Logical Platonism +%% (that G\"{o}del +%% had +%% explicitly explored). +%% %wrote about). + + +% \large + +% \baselineskip = 1.5 \normalbaselineskip + + +\section{Related Reflection Principles} + + +\label{pppxppp10} + +An added point is that there are many +types of +self-justifying systems available, with some +better suited for engineering environments +than others. + + +% bbb +For instance, our initial 1993 paper \cite{ww93} +employed a Group-3 {\it ``I am consistent''} axiom +that was much weaker than +the current specimen. +The distinction was that +\cite{ww93}'s self-consistency declaration +excluded +merely +the existence of a semantic tableaux proof +of $0=1$ from itself, while +the +sentence \eq{group3} is +more elaborate because +it excludes the existence of simultaneous proofs +of a $\Pi_1^*$ theorem and its negation. + + +Ideally, one would like to +develop self-justifying +systems $~S~$ that +% could +can +corroborate the validity +of \eq{brxefl}'s reflection principle for all sentences +$\Phi$. +\beq +\label{brxefl} +\forall p ~~[~ Prf_S^D(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +L\"{o}b's Theorem +establishes, +however, + that all + systems $S$, +containing +Peano Arithmetic's +strength, are able to prove +\eq{brxefl}'s invariant +{\it only in the degenerate case} where they +do +prove $\Phi$ +itself. Also, the Theorem 7.2 from \cite{ww1} +showed +essentially all +axiom systems, +{\it weaker} than Peano Arithmetic, are unable to prove \eq{brxefl} +for all $\Pi_1^*$ sentences $\Phi$ +simultaneously. Thus, +\thx{ttt5} +will be near optimal: + +%% xxxxx + +%%% bbbbb +\begin{theorem} +\label{ttt5} +Let us recall that the difference between \thx{ttt1}'s +axiom system + IS$_D(A)$ +and \thx{ttt3}'s formalism +\ik3 +was that the latter replaced + IS$_D(A)$'s infinite-sized Group-2 axiom schema +with \ik3's compact 1-sentence axiom +\eq{globsim}, so that the latter system could at least verify +\eq{t5kern}'s kernelized statement +for +each $\Pi_1^*$ theorem that $A$ proved. +\beq +\label{t5kern} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +Let likewise $IS^\lambda_\#( \, \beta_{A,i} \, )$ +denote the modification of \cite{ww1}'s $IS^\lambda(A)$ +self-justifying +system +that replaces the latter's Group-2 schema with +\eq{globsim}'s more compact single-sentence axiom declaration +(and +% again +%accordingly +then +has its Group-3 {\rm ``I am consistent''} +axiom statement +reflect this change, +once again). +Then in a context where ``semtab'' is an abbreviation for +semantic tableaux deduction, +the formalism $IS^\lambda_\#( \, \beta_{A,i} \, )$ +will be able to: +\bee +\item +Verify that +semantic tableaux + deduction supports the +following analog of +\eq{brxefl}'s +self-reflection principle +under + $IS^\lambda_\#( \, \beta_{A,i} \, )$ +%%% $S$ +for any +$\Delta_0^*$ and $\Sigma_1^*$ +sentences $\Phi~~$: +\beq +\label{nrxefl} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +\item +Verify +\eq{rdilute}'s more general +{\bf ``root-diluted''} reflection principle +for $IS^\lambda_\#( \, \beta_{A,i} \, )$ +whenever +$\theta$ is $\Sigma \, _{1}^*$ +and + $\Phi$ is a $\Pi_2^*$ sentence of the +form ``$~\forall u_1 ... \forall u_n~~ + \theta(u_1... u_n )~$''. +\beq +\label{rdilute} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Longrightarrow ~ \forall x~ + \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ + \theta(u_1... u_n ) ~] +\enq +\ene +\end{theorem} + + + +%% bbbb +As is suggested by the similarity between the +definitions of $IS^\lambda(A)$ and + $IS^\lambda_\#( \, \beta_{A,i} \, )$, +the proof of \thx{ttt5} is essentially +identical to +\cite{ww1}'s +analysis of $IS^\lambda(A)$. +For the sake of brevity, we will not repeat +the relevant proof here. + + + + +%%% +%%% \begin{theorem} +%%% \label{tts5} +%%% For any +%%% input axiom system $A$, +%%% it is possible to extend the self-justifying +%%% IS$_D(\aaa)$ and \ik3 +%%% systems, +%%% from Theorems \ref{ttt1} and \ref{ttt3}, +%%% so +%%% that the resulting +%%% self-justifying logics +%%% $S$ +%%% can also: +%%% \bee +%%% \item +%%% Verify that \txl{1} deduction supports the +%%% following analog of +%%% \eq{brxefl}'s +%%% self-reflection principle +%%% under $S$ +%%% for any +%%% $\Delta_0^*$ and $\Sigma_1^*$ +%%% sentences $\Phi~~$: +%%% \beq +%%% \label{nrxefl} +%%% \forall p ~~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Rightarrow ~~ \Phi~~] +%%% \enq +%%% \item +%%% Verify +%%% \eq{rdilute}'s more general +%%% {\bf ``root-diluted''} reflection principle +%%% for $~S~$ +%%% whenever +%%% $\theta$ is $\Sigma \, _{1}^*$ +%%% and +%%% $\Phi$ is a $\Pi_2^*$ sentence of the +%%% form ``$~\forall u_1 ... \forall u_n~~ +%%% \theta(u_1... u_n )~$''. +%%% \beq +%%% \label{rdilute} +%%% \forall p ~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Longrightarrow ~ \forall x~ +%%% \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ +%%% \theta(u_1... u_n ) ~] +%%% \enq +%%% \ene +%%% \end{theorem} +%%% + + +%% \thx{ttt5}'s proof +%% will +%% rest +%% upon +%% hybridizing +%% the techniques from +%% \cite{ww1}'s +%% tangibility reflection principle +%% with Theorem +%% \ref{ttt3}'s +%% methodologies, +%% in a +%% natural +%% very +%% manner. +%% %hhhh +%% Its proof is summarized in Appendix D. + + + +% \baselineskip = 1.21 \normalbaselineskip +\parskip 4pt + +Analogous to our +other +results, +\thx{ttt5} +reinforces +% the +our + theme about how +exceptions +to +the Second Incompleteness Theorem +may +appear to +be +{\it quite +minor} +from the perspective of +an Utopian +view of mathematics, +while +being +significant +from an engineering standpoint. +In \thx{ttt5}'s +particular case, +this is +because: +\bed +\item[A. ] +The ability of \thx{ttt5}'s +system +%%% $S$ +to +support +\eq{nrxefl}'s +self-reflection principle +under +tableaux +%\txl{1} +proofs for +any + $\Delta_0^*$ and $\Sigma_1^*$ sentence, +as well as +to +support +\eq{rdilute}'s +root +reflection principle +for $\Pi_2^*$ sentences, +is +clearly +significant. +\item[B. ] +The incompleteness result +of \cite{ww1}'s +Theorem 7.2 +imposes, +however, +sharp limitations upon Item A's +generality +(in that it cannot be extended to +fully all + $\Pi_1^*$ sentences, +{\it in an undiluted sense).} +\ennd +% +% \noindent +Thus, +the tight fit +between + A and B +is +reminiscent of +other +slender +borderlines, +that separated +generalizations and +boundary-case exceptions +for the +Incompleteness Theorem, +explored +earlier. +Once again, +the Second Incompleteness +Theorem +is +seen + as robust, +from an +idealized +Utopian perspective on mathematics, +while +permitting +caveats +from +engineering +styled +perspectives. + +This + dualistic +viewpoint +allows one to +nicely +share +{\it partial (and not full)} +agreement with +Hilbert's +main aspirations in $**$, +$\,$while also + appreciating +the + stunning +achievement +of +the Second Incompleteness Theorem. + + + + + + + + +\section{Concluding Remarks} + +\label{ppppp10} + + +At a purely technical level, +this article has reached beyond +our prior papers in +several +respects, +including +\textsection \ref{pppp5}'s demonstration +that any +initial +system $A$ +can have a kernelized image of its + $\Pi_1^*$ knowledge duplicated by +\ik3's {\bf strictly finite sized} +self-justifying +system, +as well as +%and also by + Section +\ref{pppp6}'s +and +Remark \ref{rem2}'s +quite + pragmatic + L-fold generalizations +of +\thx{ttt3}. + +% this result. + + + + +These +perspectives +%results +help resolve the mystery +that has +enshrouded +the Second Incompleteness Theorem and the statements +$*$ and $**$ +of G\"{o}del and Hilbert. +This is because +we have +{\it meticulously separated} +the goals of a +pristine theoretical study of mathematical +logic +from +those of +a + {\it +finite-sized} +axiomatic +subset of mathematics, +intended + for modeling +mostly +an engineering environment. + + + + + + + + + +There is no question that +G\"{o}del's Second +Theorem +is ideally robust, +relative to a +purely pristine +approach to mathematics. +On the other hand, we suspect +Hilbert +was +{\it half-way +correct} by + speculating +in + $**$ +about humans +possessing +a knowledge +about + their own consistency, +{\it in at least some +% strikingly + weak +and + tender sense,} as +essentially a +% fundamental +prerequisite +for +{\it psychologically + motivating} +their cogitations. +%%%% hhhhhh +Thus in a context where the limitations of axiom systems, +that fail to recognize multiplication as a total function, +are manifestly +obvious, +%% +%% +%% +%% even when +%% such systems +%% duplicate +%% Peano Arithmetic's +%% central +%% $\Pi_1^*$ knowledge, +%% +it is legitimate to +inquire + whether some +future +specialized +21st century computers + might +find +some +{\it partial-albeit-and-not-full} redeeming +value +in formalisms +having +{\it weak-style} + knowledges +of +their + \txl{1} consistency, +as well as possessing a knowledge of +Peano Arithmetic's +$\Pi_1^*$ theorems. + + +%%%% hhhh +%%More precisely, +Sections +\ref{pppp5}-\ref{pppxppp10} +were, +thus, + intended +to provide +a +unified +broad-scale +interpretation of our +diverse + earlier +results +that had appeared +%appearing +in \cite{ww93}-\cite{ww9}. +%from +%\cite{ww93,sp0,ww1,ww2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +In a +context where +the +Incompleteness +Theorem is +%% +%% firmly +%% understood +%% to be +%% + sufficiently +ubiquitous + to preclude Hilbert's +aspirations in $**$ +from +ever +being fully realized, +they show +how +some +{\it fragmentary portion} of Hilbert's +conjectures +can +be corroborated by +{\it judiciously weakened} logics, +using a formalism, that is +{\it much less} than ideally robust, +{\it although +not fully immaterial}. + +%\medskip + +\bigskip + +Such partial evasions of the Second Incompleteness Effect +are certainly not broad-scale, but they +do corroborate a fragment of what G\"{o}del and Hilbert +%referred to +had +sought +as +% ideal +their +desired +goals, +expressed + in the statements $*$ and $**$. + +\newpage + +%\bigskip + + {\bf Acknowledgments:} $~$I thank + Bradley Armour-Garb and Seth Chaiken for +many + useful suggestions about how to +improve the presentation of our results. +%% I also thank the anonymous referees for their comments. +This research was +partially supported +by NSF Grant CCR 0956495. + + +\small + \parskip 2 pt +\baselineskip = 0.86 \normalbaselineskip + + + +\bibliographystyle{abbrv} +\bibliography{b15} + + + + +% eeee end end +% \newpage + + + + + +%\large +% \baselineskip = 1.5 \normalbaselineskip + +% \baselineskip = 1.2 \normalbaselineskip + + \parskip 4 pt + +\ssspace + +\section*{Appendix A: Definition of a +Semantic Tableaux Proof } + +The +definition of a semantic tableaux proof, +provided here, +will be similar to analogous definitions used in +say Fitting's or Smullyan's textbooks + \cite{Fi90,Smul}. + +%% For simplicity +%% during our discourse, +%% a sentence $~\Psi~$ +%% will be called PRENEX$^*$ iff it is written in the +%% form $Q_1 \, x_1~Q_2\, x_2...~Q_n \, x_n~~\theta(x_1,x_2...x_n)~$ +%% where $~\theta(x_1,x_2...x_n)~$ is a $\Sigma_0^-$ formula +%% and $Q_i$ denotes either the symbol $\forall$ or $\exists$. + +During our +discussion, a +% discourse, a +{\bf $\Phi$-Based Candidate Tree} for +an axiom system $\, \alpha \,$ +will be defined +to be a tree structure +whose root corresponds to +the sentence $~\neg \, \Phi~,~$ rewritten in +prenex normal form, and whose all other nodes are +either axioms of $~\alpha~$ or deductions from higher +nodes of the tree +(using the Rules 1-6 defined below). +More precisely, our six rules +(below) + have +``$~ \cal{A} ~ \longmapsto ~ \cal{B} ~$'' denote +that $~ \cal{B} ~$ +is a valid deduction +from $~ \cal{A} ~$. +They +% thus +specify when such a +descendant +node $~ \cal{B} ~$ is allowed to +appear below an ancestor $~ \cal{A} $ +%% +%% is an ancestor of $~ \cal{B} ~$ +%% in the candidate tree $~T~$. In this notation, the deduction +%% rules allowed +%% +in a candidate tree: +\begin{enumerate} + \parskip 1 pt +\item $~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Upsilon +~$ +and +$~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Gamma ~$ . +\item $~ \neg \,\neg \, \Upsilon ~ \longmapsto ~ \Upsilon~$. +Other +% valid Tableaux +rules for +the ``$~ \neg ~$'' symbol include: $~$ +$~\neg ( \Upsilon \vee \Gamma ) ~ \longmapsto ~ \neg \Upsilon +\wedge \neg \Gamma~$, +$ \, \neg ( \Upsilon \Rightarrow \Gamma ) \, \longmapsto \, \Upsilon +\wedge \neg \Gamma \, $, +$ ~~~~\, \neg ( \Upsilon \wedge \Gamma ) \, \longmapsto \, \neg +\Upsilon \vee \neg \Gamma \, $, + $~ \, \neg \, \exists v \, \Upsilon (v) \, \longmapsto \, +\forall v \neg \, \Upsilon (v) \, $ and + $ ~\, \neg \, \forall v \, \Upsilon (v) \, \longmapsto \, +\exists v \, \neg \Upsilon (v)$ +\item A pair of sibling nodes $~ \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof +tree when their ancestor is +$~\Upsilon \, \vee \, \Gamma~$. +\item A pair of sibling nodes $~ \neg \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof + tree when their ancestor is +$~\Upsilon \, \Rightarrow \, \Gamma~$. +\item $~ \exists v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(u) ~$ +where $~u~$ denotes a newly introduced ``Parameter Symbol''. +\item $~ \forall v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(t) ~$ +where $~t~$ denotes a ``Composite Term''. +These terms here are +built out of +combination of + the U-Grounding Function symbols, +the constant symbols representing ``0'' and ``1'' +and the parameter symbols $~u_1,u_2,..,u_n~$, +where each +%symbol +$~u_i~$ {\bf was previously} +introduced by +% instance of +applying +Rule 5 +%applying +to +an ancestor +of the node storing +% the current new deduction + ``$ ~ \, \Upsilon(t) ~$''. +\end{enumerate} +Define a particular leaf-to-root branch in a candidate +tree $~T~$ to be {\bf Closed} iff it contains both some sentence +$~ \Upsilon ~$ and its negation $~ \neg \, \Upsilon ~$. + A {\bf Semantic +Tableaux} proof of $~\Phi~$ will then be defined to be +a candidate tree whose root stores the sentence +$~ \neg \Phi~$ (written in prenex normal +form) and all of whose root-to-leaf branches are +closed. + +% All our theorems in the current article have, + +Our +% discussion in the +current article has, +% will, +for simplicity, +used the preceding definition for a semantic tableaux proof. +Some of our prior articles +%have +used a minor modification +of this definition where there were two additional deduction +rules for ``bounded quantifiers'' of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$''. +It is technically unnecessary to use special rules for +such bounded quantifiers because these two expressions +can be treated as being equivalent to +\eq{bex} and \eq{beu}, respectively. +\beq +\label{bex} +\exists \, v ~~~~ v \leq t~\wedge~ \Upsilon (v) +\enq +\beq +\label{beu} +\forall \, v ~~~~ v \leq t~\Rightarrow~ \Upsilon (v) +\enq +Thus, we technically do not need special Elimination Rules +for bounded quantifiers of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$'' +because statement +\eq{bex} allows the + former to be eliminated +by applying Rules 5 and 1, and likewise +\eq{beu} can +be processed via Rules 6 and 4. + + +%% For simplicity, we will thus rely upon the above 6-part definition +%% of semantic tableaux during the current article. +%% +%% ???? Remove above sentence ??? bbbbbbbbbbbbbbbbb + +\section*{Appendix B: Summary of G\"{o}del Encoding Method} + +Every +%% formalization of either a +generalization and +% a +boundary-case +exception for + the Second Incompleteness +Theorem +does +require + deploying a + G\"{o}del encoding methodology +(to make it well defined). +Such an encoding scheme will be +called +{\bf Optimally Linearly Compressed} if it requires: +\bed +\item[ A. ] +Only +$O(1)$ bits to store +each occurrence +of any +logical symbol +% any of the logical symbols +appearing in a tableaux proof +(except for the objects that +Items 5 and 6 of Appendix A called the $i-$th +``variable'' and ``parameter'' symbols). +\item[ B. ] +No more than +$O(~1~+~$Log$(i) ~)$ bits to +encode + a proof's +$i-$th +``variable'' and ``parameter'' symbols. +(This $O(~1~+~$Log$(i) ~)$ magnitude is unavoidable +because +there is no finite limit to the number of different +variable and parameter objects that may appear in +one of Appendix A's +semantic tableaux proofs.) +\ennd +All our published results about either +generalizations or +boundary-case +exception +for the Second Incompleteness Theorem have used such optimally +compressed encodings. + + +In particular, +our scheme for +encoding +a semantic tableaux proof + will use +the following +24 language symbols: +\begin{enumerate} +\small + \baselineskip = 1.1 \normalbaselineskip +\item The standard connective symbols of +$\wedge ,~ \vee ,~ \neg ,~ \rightarrow ,~ \forall$ +and $~ \exists$. +\item Two +left and two right parenthesis symbols +denoted as: $~(~$ , $~)~$ +$~\underline{\, ( \,}~$ and $~\underline{\, ) \,}.~$ +\item +Two symbols to represent the special constants of ``0'' and ``1''. +\item +Eight function symbols for representing for representing +the eight formal U-grounding functions of Addition, Doubling, Subtraction, +Division, Logarithm, etc. +\item +The relation symbols of +``$~=~$'' and ``$~ \leq ~$''. +\item The symbol $~ \hat{V} ~$ for designating +the presence of a basic variable $~v~$ +in a logical sentence. +\item The symbol $~ \hat{U} ~$ for designating +the presence of a parameter constant $~u~$ +in a logical sentence (which is produced by +Appendix A's +deduction rule 5 for +eliminating +existential quantifiers). +\end{enumerate} +Define a byte to be an unit consisting of six bits. +We +may +%will + think of a proof as +comprising + either + a sequence of +bytes or being an +equivalent +integer +written in base 64. +Each of the 24 symbols (above) will be given +some unique 6-bit code, ranging between 32 and +55. +Our method for representing the presence of +the i-th variable $~v_i$ +will be to encode it is as +a string +comprised +of +$\, \lceil \, log_{\, 32 \,}(i+1) \, \rceil ~+~1~$ bytes, where the +first byte is the ``$\, \hat{V} \,$'' symbol and the remaining bytes +encode +i as a base-32 number. +% with the convention that the lead bit in each +%byte's 6-bit sequence is ``0''. +The same convention will be used to denote the presence of +the i-th parameter $~u_i~$ +except its first byte will be the ``$\, \hat{U} \,$'' symbol. + + + +Our notation has employed {\it two types} of +parenthesis symbols because the first pair of +parenthesis symbols will have their usual meaning in punctuating a +mathematical +sentence, whereas the latter pair of symbols + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ +will {\it separate} the individual sentences in +a Semantic Tableaux proof tree. For example, +consider a tree which stores +1) the sentence $~\psi_1~$ as its root, 2) +the sentences $~\psi_2~$ and $~\psi_3~$ as the root's children, and 3) +$~\psi_4~$ as the child of $~\psi_3.~$ There are several +possible notation conventions for using the + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ symbols +to encode a Semantic Proof tree. +Our encoding +convention will +presume +%be that +$~\psi_i~$ +is an ``ancestor'' of $~\psi_j~$ {\it if and only if} the range beginning +with the +parenthesis to $\psi_i$'s immediate left and continuing +to the matching right parenthesis includes +$~\psi_j.~$ +The example of our 4-node proof tree is thus +encoded as: +\begin{equation} +\label{paren} + ~~\underline{\, ( \,}~~ \psi_1 + ~~\underline{\, ( \,}~~ \psi_2~ + ~\underline{\, ) \,}~ + ~~\underline{\, ( \,}~~ \psi_3 + ~~\underline{\, ( \,}~~ \psi_4~ + ~\underline{\, ) \,}~~ \underline{\, ) \,}~~ \underline{\, ) \,}~ +\end{equation} + + +The preceding paragraph summarized our method for +encoding semantic tableaux proofs. Its +generalization +for +the +encoding of \txl{1} proofs is +straightforward. Thus if + $~p_1,p_2,...p_n~$ +collectively constitute +a list of semantic tableaux proofs +then the + natural concatenation +of their byte strings will be the corresponding + \txl{1} +proof. + +This ``Optimally Linearly Compressed'' encoding scheme +is +%noteworthy +essential +because all the core axiom systems, employed +in this article, are Type-A formalisms, that recognize Addition +but not Multiplication as a total function. If such formalisms +were less than optimally compressed then our main theorems +would lose relevance because the formalization +of +unnecessarily expansive encodings would be awkward +in the context of the slow growth properties of +Type-A formalisms. Thus, +our results carry much greater significance when their +% it is useful that our +encodings +of a proof satisfy the maximal compression properties, +% outlined in the first paragraph of +%that are +defined in +this appendix. + + +%% +%% This byte-styled encoding method is approximately analogous +%% to what Wilkie-Paris \cite{WP87} have called +%% a {\it natural B-adic} encoding or a similar +%% counterpart in the H\'{a}jek-Pudl\'{a}k textbook +%% \cite{HP91}. Such +%% compressed encodings are +%% considered to be more +%% meaningful and efficient than an uncompressed encoding method, +%% using say a Prime Number decomposition scheme \cite{Me97} +%% (because the latter has an unnecessarily long bit-length). +%% All our theorems would also be +%% valid for uncompressed +%% encoding methods. +%% However, they are more meaningful when one uses an +%% efficiently compressed +%% B-adic encoding method. +%% +%% %\newpage +%% + + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + + +\section*{Appendix C: Formal Encoding of +%Statmenent \eq{group3}'s +the +Group-3 Axiom} + +Let us recall +%that +Appendix A +reviewed the definition of +a +semantic tableaux +and \txl{1} + proof, + and Appendix B formalized the +encodings +of such proofs. The goal of this appendix +will be to summarize the methodology +%% \cite{ww5} +%% that was +used to define +Statmenent \eq{group3}'s Group-3 +axiom +in \cite{ww5} . + +%%% Passive Voice change in above sentence much +%%% better because it understates my use of \cite{ww5} . + + +%% {\bf More Detailed Description of the Group-3 Axiom:} $~$ +%% A formal description of +%% IS$_D(A)$'s +%% Group-3 axiom is more complicated than the abbreviated +%% descriptions given either by +%% Sentence$~*~$ or by \ep{group3}'s analog. +%% The +%% main added complication is because +%% the Group-3 axiom declares the consistency of +%% a formal set of axioms that includes ``itself'' +%% (in the words of Sentence$~*~).~$ +%% As was noted in Section 1, the notion of an +%% axiom including +%% ``itself'' when it refers to the consistency +%% of an axiom schema dates back to Kleene's 1938 paper \cite{Kl38}. +%% However, Kleene's abbreviated +%% description is insufficient to establish that +%% \ep{group3} can be encoded precisely as +%% a +%% $\Pi_1^*$ sentence. The next two paragraphs will +%% explain how this can be done. + +Let + UNION($A$) denote the union of IS$_D(A)$'s Group-Zero, +Group-1 and Group-2 axioms. +It will be useful to employ the following notation: +\begin{description} +\item[ i] $\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)$ +will denote a formula designating +that $~p~$ is a proof of the theorem $~t~$ from the axiom +system UNION($A)$ using the deduction method $~D.~$ +\smallskip +\item[ ii] +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$ +will be a formula stating that +$~p~$ is a proof +(using the deduction method $~D~)~$ + of +a theorem $~t~$ +from the union +of the axiom system +UNION(A) with the added axiom +sentence specified by the integer +$\, h \,$. +\smallskip +\item[iii] + $\mbox{Subst} \, ( \, g \, , \, h \, )$ will denote +G\"{o}del's +classic substitution formula --- which yields TRUE when $\, g \,$ +is an encoding of a formula +and $\, h \,$ is an encoding of a sentence +that replaces all occurrence of free variables in $\, g \,$ with +% the formally +an +encoded term +% of +$~\underx{g}~$ +(that designates $g$'s G\"{o}del number.) +\smallskip +\item[ iv] +$\mbox{SubstPrf}_{~UNION(A)}^D~( \, g \, , \, t \, , \, p \,)$ +will denote the natural +hybridizations of the constructs from Items (ii) and (iii) +which yields a Boolean value of TRUE exactly when there +exists some integer $~h~$ +simultaneously +satisfying +{\it both} +the conditions + $\mbox{Subst} \, ( \, g \, , \, h \, )$ and +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$. + +\end{description} +Each of (i)--(iv) +can be encoded as $\Delta_0^*$ formulae. +Thus, Appendices C and D of \cite{ww1} +%% thus, + explained how +the first three of these predicates can receive + $\Delta_0^*$ encodings when one applies +the theory of LinH functions +\cite{HP91,Kr95,Wr78}. +Hence, \eq{encode} illustrates +one possible $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{~UNION(A)}^D \,( g , t , p )$'s +graph. (It is +equivalent to +the statement +$~$``$~\exists ~h~[~\mbox{Subst} ( g , h )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D( h , t , p )\, ] \, \,$''$,~$ + but \eq{encode} is + a $\Delta_0^*$ formula --- {\it unlike} the quoted +expression.) +\begin{equation} +\label{encode} +\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)~~~\vee~~~\exists ~h\leq p +~~[~ \mbox{Subst} \, ( \, g \, , \, h \, )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)~] +\end{equation} + +Let us recall that +$\mbox{Pair}(x,y)$ is a $\Delta_0^*$ sentence +specifying that + $~x~$ +and $~y~$ +are +the encodings of + a $\Pi_1^*$ +and $\Sigma_1^*$ sentence, +that are logical negations of each other. +Using + \eq{encode}'s + $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{UNION(A)}^D( g , t , p )$, +we can now explain +how +statement +\eq{group3}'s Group-3 Axiom can +be formally encoded. +Let +$~\Gamma(g)~$ +denote \ep{encode2}'s formula, +% and let + $~n~$ denote $~\Gamma(g)$'s +G\"{o}del number +and $\underx{n}$ +denote a term encoding $n$ in the U-Grounding language. +$~\,$Then +it will turn out that $~$``$~\Gamma(~ \underx{n}~)~$''$~$ +will be a $\Pi_1^*$ sentence +that is equivalent to + this Group-3 axiom. +\begin{equation} +\label{encode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , y , q ) \,] +\end{equation} +More precisely, \eq{newencode2} formalizes the encoding +of + $~$``$~\Gamma(~ \underx{n}~)~$''. +\begin{equation} +\label{newencode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , y , q ) \,] +\end{equation} +%In particular, +Thus, +if we view +$~~$``$~\mbox{SubstPrf}_{~UNION(A)}^D~( \, + \underx{n} \, , \, t \, , \, p \,)~$'' +in \eq{newencode2} +as our formal method of +encoding the concept that was previously informally +called +``$~\mbox{Prf}~_{\mbox{IS}_D(A)}(t,p)~$'' +by Statement \eq{group3}, +then \eq{newencode2} amounts to +the formal encoding of +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration. + +\bigskip + +{\bf Reminder about +the Significance of + \eq{newencode2}'s Encoding :} +The preceding construction +%shows +had showed +merely that it is possible +to encode +Sentence +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration +in a well-defined manner as a $\Pi_1^*$ +sentence. +It does not answer the more subtle question about whether or not +its +{\it ``I am consistent''} axiom declaration +holds +true + under the Standard model. +%of the natural numbers. +As we have noted before, +most analogs of +%the above sentence +\eq{newencode2} +produce false statements +%fail to hold True +under the Standard Model +because a conventional G\"{o}del-like +diagonalization argument will imply +that +most deduction methods $D$ will produce +%their resulting +axiom systems +$\mbox{IS}_D(A)$ +that are + inconsistent. + +\medskip + +The reason for our +particular +interest in +\eq{newencode2}'s +formal encoding is that +Theorems \ref{ttt1} and \ref{ttt2} +indicate that $\mbox{IS}_D(A)$ +is +%indeed +consistent when $D$ denotes +either the semantic tableaux or \txl{1} +deduction methodologies. Thus +\eq{newencode2}'s +Fixed-Point construction should be seen as a +methodology that has +%limited-but-subtle +limited applications, +but which is also +quite helpful (when it is feasible). + +%quite significant. +\end{document} + diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/b15.bib b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/b15.bib new file mode 100644 index 0000000..6f575cd --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/b15.bib @@ -0,0 +1,1062 @@ + +%% 2014 home feb 9 -3pm + +%% home 2015 jan5 same as suny copy and old ``may14'' + +%% 2014 may 14 5.1 pm + + +\bibliography +\bibliographystyle +@string{notre = " Notre Dame Journal on Formal Logic"} +@string{zeit = "Zeitscrfit fur Math Logic"} +@string{carol = "Com. Math. Univ. 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H\'{a}jek}, + title = {Existence of a Generalized Semantic Model of +\mbox{G\"{o}del-Bernays} Set Theory}, + journal = { Bulletin de l'Academie Polonaise des Sciences,Mathmatiques, Astromiques et Physiques}, + year = 1973, + volume = 12, + pages = {1079-1086}, +} +12 (1973) pp.1079-1086. + +@article{WP87, + author = {A. J. Wilkie and J. B. Paris}, + title = {On the Scheme of Induction for Bounded +Arithmetic}, + journal = apal, + year = 1987, + volume = 35, + pages = {261-302}, +} + + + + +@article{ww93, + author = {D. E. Willard}, + title = {Self-Verifying Axiom Systems}, + journal = spv, + year = 1993, + volume = 713, + pages = {325-336}, + note = {Proceedings of Third Kurt G\"{o}del Symposium} + } + +@article{sp0, + author = {D. E. Willard}, + title = {The semantic tableaux version of the second +incompleteness theorem extends almost to +\mbox{Robinson's} +arithmetic \mbox{Q} } , + journal = spv, + year = 2000, + volume = 1847, + pages = {415-430}, + note = {Proceedings of ``Tableaux-2000'' Conference } + } + + + +@article{ww1, + author = {D. E. Willard}, + title = {Self-Verifying Systems, the Incompleteness +Theorem and the +Tangibility Reflection Principle}, + journal = jsl, + year = 2001, + volume = 66, + number = 2, + pages = {536-596} +} + + + + +@article{ww2, + author = {D. E. Willard}, + title = {How to Extend The Semantic Tableaux And +Cut-Free Versions of the Second +Incompleteness Theorem Almost to +\mbox{Robinson's} +arithmetic \mbox{Q} } , + journal = jsl, + year = 2002, + volume = 67, + number = 1, + pages = {465-496} + } + + +@article{tab2, + author = {D. E. Willard}, + title = {Some New Exceptions for +the Semantic Tableaux Version of the +Second Incompleteness Theorem}, + journal = spv, + year = 2002, + volume = 2381, + pages = {281-297}, + note = { (``Tableaux-2002'' Conference Proceedings)} + } + + + + +@inproceedings{wwlogos, + author = {D. E. Willard}, + title = {A Version of the + Second Incompleteness Theorem For Axiom + Systems that Recognize Addition + But Not Multiplication as a Total Function}, + booktitle = {First Order Logic Revisited}, + year = {2004}, + address = {Berlin}, + pages = {337--368}, + editor = {V. Hendricks and F. Neuhaus and S. A. Pederson and U. Scheffler and H. Wansing}, + publisher = {Logos Verlag} +} + + + + +@misc{wwconf, + author = {D. E. Willard}, + title = {On Two Partial (and not Full) Respects +Where an Axiom System Can Recognize Its Own Consistency +and Multiplication as a Total Function}, + year = 2005, + note = {a presented talk at the +summer ASL-2005 conference in Athens whose +300-word abstract will be publised in the {\it Bulletin of +Symbolic Logic} and which is described in further detail in an +University of Albany technical report.} + + } + + + +@article{wwpete, + author = {D. E. Willard}, + title = {A New Variant of \mbox{Hilbert} Styled Generalization of the Second Incompleteness +Theorem and Some Exceptions to It}, + journal = apal, + year = 2006, + note = {A 200-word abstract summarizing +the contents of this +forthcoming invited article can be found on the +web-site of {\it The 2nd St. Petersburg Conference on Logic and +Computability (2003)}, i.e. http://logic.pdmi.ras.ru/2ndDays +or in the Atlas Mathematical Conference Abstracts.}, + + } + + + +@article{ww5, + author = {D. E. Willard}, + title = {An Exploration of the Partial Respects +in which an Axiom +System Recognizing Solely Addition as a Total Function Can +Verify Its Own Consistency}, + journal = jsl, + year = 2005, + volume = 70, + number = 4, + pages = {1171-1209}, +} + + +@article{sp5, + author = {D. E. Willard}, + title = {On the Partial Respects in which a +Real Valued Arithmetic System Can Verify its Tableaux Consistency}, + journal = spv, + year = 2005, + volume = 3702, + pages = {292-306}, +} + + +@article{wwapal, + author = {D. E. Willard}, + title = {A Generalization of the Second Incompleteness +Theorem and Some Exceptions to It}, + journal = apal, + year = 2006, + volume = 141, + number = 3, + pages = {472-496} + } + + + + + +@article{ww6, + author = {D. E. Willard}, + title = {On the Available Partial Respects in which + an Axiomatization +for Real Valued Arithmetic Can Recognize its +Consistency}, + journal = jsl, + year = 2006, + volume = 71, + number = 4, + pages = {1189-1199} +} + + + +@article{ww7, + author = {D. E. Willard}, + title = {{Passive induction and a solution to a Paris-Wilkie +open question}}, + journal = apal, + year = 2007, + volume = 146, + number = 2, + pages = {124-149} + } + + + + +@article{ww9, + author = {D. E. Willard}, + title = {{Some +specially formulated +axiomizations for I$\Sigma_0$ +manage to +evade +the Herbrandized version of the second incompleteness theorem}}, + journal = icomp, + year = 2009, + volume = 207, + number = 10, + pages = {1078-1093} + } + + +@article{ww14, + author = {D. E. Willard}, + title = {On the Broader Epistemological +Significance of Self-Justiying Axiom Systems}, + journal = spv, + year = 2014, + volume = 8652, + pages = {221-236}, + note = {(an earlier more abbreviated + version of this current article that had appeared in + the Proceedings of 21st Wollic Conference)} + } + + + +@article{Wr78, + author = {C. Wrathall}, + title = {Rudimentary Predicates and Relative Computation}, + journal = sicomp, + year = 1978, + volume = 7, + pages = {194-209} +} + + +@book{Yo5, + author = {P. Yourgrau}, + title = {A World Without Time: The Forgotten Legacy of +G\"{o}del and Einstein}, + publisher = {Basic Books}, + year = 2005, + note = {See page 58 for the passages we have quoted} +} diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/backup.bib b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/backup.bib new file mode 100644 index 0000000..6f575cd --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/backup.bib @@ -0,0 +1,1062 @@ + +%% 2014 home feb 9 -3pm + +%% home 2015 jan5 same as suny copy and old ``may14'' + +%% 2014 may 14 5.1 pm + + +\bibliography +\bibliographystyle +@string{notre = " Notre Dame Journal on Formal Logic"} +@string{zeit = "Zeitscrfit fur Math Logic"} +@string{carol = "Com. Math. Univ. Carol"} +@string{arch = "Archive for Mathematical Logic"} +@string{spv = "Springer LNCS"}. +@string{spm = "Springer Lecture Notes in Mathematics"}. +@string{apal = "Annals Pure and Applied Logic"}. +@string{jsl = "Jour. Symb. Logic"} +@string{sicomp = "Siam Journal on Computing"} +@string{fund = " Fundamenta Mathematicae"} +@string{ljipl = "Logic Journal of the IPL"} +@string{icomp = "Information and Computation"} +@string{ma26 = "Mathematische Annalen"} + + + +@article{Ad2, + author = {Z. Adamowicz}, + title = {Herbrand Consistency and Bounded +Arithmetic}, + journal = fund, + year = 2002, + volume = 171, + number = 3, + pages = {279-292} +} + + + +@article{AB1, + author = {Z. Adamowicz and T. Bigorajska}, + title = {Existentially Closed Structures and \mbox{G\"{o}del's} Second Incompleteness Theorem}, + journal = jsl, + year = 2001, + volume = 66, + pages = {349-356}, +} + + + +@book{AZ96, + author = {Z. Adamowicz and P. Zbierski}, + title = {The Logic of Mathematics: A Modern Course in Classical Logic}, + publisher = {John Wiley and Sons}, + year = 1997 +} + + +@article{AZ1, + author = {Z. Adamowicz and P. Zbierski}, + title = {On \mbox{Herbrand} consistency in weak theories}, + journal = arch, + year = 2001, + volume = 40, + number = 6, + pages = {399-413} +} + + + + +@article{Ar90, + author = {T. Arai}, + title = {Derivability Conditions on \mbox{Rosser's} Proof Predicates}, + journal = notre, + year = 1990, + volume = 31, + pages = {487-497} +} + +@phdthesis{Be62, + author = {J. Benett}, + school = {Princeton University}, + year = 1962, + note = {A detailed summary of Benett's main theorem can +be found on pages 299--303 and 406 +of the H\'{a}jek-Pudl\'{a}k textbook \cite{HP91}} +} + +@article{BS76, + author = {A. Bezboruah and J. C. Shepherdson}, + title = {G\"{o}del's Second Incompleteness Theorem for \mbox{Q}}, + journal = jsl, + year = 1976, + volume = 41, + number = 2, + pages = {503-512} +} + + + + +@misc{Br94, + author = {S. Bringsford}, + note = {Private +conversation, 1994, helpfully suggesting +I place my mathematical and philosophical results +in distinctly separate articles.} + +} + +@book{Bu86, + author = {S. R. Buss}, + title = { Bounded Arithmetic}, + publisher = {Studies in Proof Theory, Lecture Notes 3, published +by Bibliopolis}, + year = 1986, + note = {(Revised version of Ph. D. Thesis.)} +} + + + +@article{BI95, + author = {S. R. Buss and A. Ignjatovic}, + title = {Unprovability of Consistency Statements in Fragments of Bounded Arithmetic}, + journal = apal, + year = 1995, + volume = 74, + number = 3, + pages = {221-244}, +} + + + +@book{Da97, + author = {J W Dawson}, + title = {Logical Dilemmas the life and work of +Kurt G\"{o}del}, + publisher = {AKPeters}, + year = 1997 +} + + + +@article{D89, + author = {C. Dimitracopoulos}, + title = {Overspill and Fragments of Arithmetic}, + journal = arch, + year = 1989, + volume = 28, + pages = {173-179}, +} + +@article{Fe60, + author = {S. Feferman}, + title = {Arithmetization of Metamathematics in a General Setting}, + journal = fund, + year = 1960, + volume = 49, + pages = { 35-92}, +} + + +@article{FKO60, + author = {S. Feferman and G. Kriesel and S. Orey}, + title = {1-Consistency and Faithful Interpretations}, + journal = arch, + year = 1962, + volume = 6, + pages = {52-63}, +} + + + + +@book{Fi90, + author = {M. Fitting}, + title = { First Order Logic and Automated Theorem Proving}, + publisher = {Springer}, + year = 1996 +} + +@techreport{Fr79a, + author = {H. M. Friedman}, + title = {On the Consistency, Completeness and Correctness +Problems}, + year = 1979, + institution = {Ohio State Univ}, + note = {See Pudl\'{a}k \cite{Pu96}'s summary of this result} +} + + + +@techreport{Fr79b, + author = {H. M. Friedman}, + title = {Translatability and Relative Consistency}, + year = 1979, + institution = {Ohio State Univ}, + note = {See Pudl\'{a}k \cite{Pu96}'s summary of this result} +} + +@article{Go31, + author = {K. G\"{o}del}, + title = {{\"{U}ber formal unentscheidbare S\"{a}tze der Principia +Mathematica und verwandter Systeme I}}, + journal = { Monatshefte f\"{u}r Math. Phys.}, + year = 1931, + volume = 38, + pages = {173-198} +} + + + +@inproceedings{Go33, + author = {K. G\"{o}del}, + title = {The present situation in the foundations of +mathematics}, + booktitle = {Collected Works Volume III: Unpublished Essays and Lectures}, + year = {2004}, + pages = {45--53}, + editor = {S. Feferman and J. W. Dawson and W. Goldfarb and C. Parson and R. Solovay}, + publisher = {Oxford University Press}, + note = {Our quotes from this 1933 lecture come from its page 52.} +} + + +@book{Go5, + author = {R. Goldstein}, + title = {Incompleteness The Proof and Paradox of Kurt G\"{o}del}, + publisher = {Norton}, + year = 2005 +} + + + +@article{Ha71, + author = {P. H\'{a}jek}, + title = {On Interpretability in Set Theory \mbox{Part I}}, + journal = carol, + year = 1971, + volume = 12, + pages = {73--79} +} + + +@article{Ha72, + author = {P. H\'{a}jek}, + title = {On Interpretability in Set Theory \mbox{Part II}}, + journal = carol, + year = 1972, + volume = 13, + pages = { 445-455} +} + + +@article{Ha81, + author = {P. H\'{a}jek}, + title = {Interpretability in Theories Containing Arithmetic}, + journal = carol, + year = 1981, + volume = 22, + pages = {225-234} +} + + + +@article{Ha7, + author = {P. H\'{a}jek}, + title = {Mathematical fuzzy logic and natural numbers}, + journal = fund, + year = 2007, + volume = 81, + pages = {155-163} +} + + +@article{Ha11, + author = {P. H\'{a}jek}, + title = {Towards metamathematics of weak arithmetics over +fuzzy}, + journal = ljipl, + year = 2011, + volume = 19, + number = 3, + pages = {467-475} +} + + + +@book{HP91, + author = {P. H\'{a}jek and P. Pudl\'{a}k}, + title = { Metamathematics of First Order Arithmetic}, + publisher = {Springer Verlag}, + year = 1991 +} + + +@article{Hil26, + author = {D. Hilbert}, + title = {{\"{U}ber das Unendliche}}, + journal = ma26, + year = 1926, + volume = 95, + pages = {161-191} +} + + + + +@book{HB39, + author = {D. Hilbert and P. Bernays}, + title = { Grundlagen der Mathematik (Vol II)}, + publisher = {Springer}, + year = 1939 +} + + +@article{Je71, + author = {R. G. Jeroslow}, + title = {Consistency Statements in Formal Theories}, + journal = fund, + year = 1971, + volume = 72, + pages = { 17-40}, +} + + +@book{Ka91, + author = {R. Kaye}, + title = { Models of Peano Arithmetic}, + publisher = {Oxford University Press}, + year = 1991 +} + + +@article{Kl38, + author = {S. C. Kleene}, + title = {On Notation for Ordinal Numbers}, + journal = jsl, + year = 1938, + volume = 3, + number = 1, + pages = {150-156}, +} + + + +@article{Ko6, + author = {L. A. Ko{\l}odziejczyk}, + title = {On the +\mbox{Herbrand} Notion of Consistency for Finitely +Axiomatizable Fragments of Bounded Arithmetic Theories}, + journal = jsl, + year = 2006, + volume = 71, + number = 2, + pages = {624-638} +} + + + +@article{Kr87, + author = { J. Kraj\'{i}cek}, + title = {A Note on Proofs of Falsehood}, + journal = arch, + year = 26, + volume = 1987, + pages = {169-176} +} + + +@book{Kr95, + author = { J. Kraj\'{i}cek}, + title = {Bounded Propositional Logic and Complexity Theory}, + publisher = {Cambridge University Press}, + year = 1995 +} + + + + + + +@article{KT74, + author = {G. Kreisel and G. Takeuti}, + title = {Formally Self-Referential Propositions in Cut-Free Classical Analysis and Related Systems}, + journal = {Dissertationes Mathematicae}, + year = 1974, + volume = 118, + pages = {1--50} +} + + +@incollection{Li84, + author = {P. Lindstr\"{o}m}, + title = {On faithful Interpretability}, + booktitle = {Computation and Proof Theory}, + publisher = spm, + volume = 1104, + year = 1984, + pages = {279-288} +} + +@article{Lo55, + author = { M. H. L\"{o}b}, + title = {A Solution of a Problem of \mbox{Leon Henkin}}, + journal = jsl, + year = 1955, + volume = 20, + number = 2, + pages = {115-118}, +} + + + +@book{Mend, + author = {E. Mendelson}, + title = {Introduction to Mathematical Logic}, + publisher = { Chapman Hall}, + year = 2010 +} + + +@article{Mo58, + author = {R. Montague}, + title = {The Continuum of Relative Interpretability}, + journal = jsl, + year = 23, + volume = 1958, + pages = {494-511}, +} + + + +@article{Mo62, + author = {R. Montague}, + title = {Theories Incomparable with Respect to Interpretability}, + journal = jsl, + year = 1962, + volume = 27, + pages = {195-211}, +} + + +@article{My62, + author = {J. Mycieslski}, + title = {A Lattice Connected with + Relative Interpretability}, + journal = {Notices of AMS}, + year = 1962, + volume = 9, + pages = {407-408}, +} + + + +@book{Ne86, + author = {E. Nelson}, + title = {Predicative Arithmetic}, + publisher = { Math Notes, Princeton Univ Press}, + year = 1986 +} + + + +@article{Or61, + author = {S. Orey}, + title = {Relative Interpretations}, + journal = zeit, + year = 1961, + volume = 7, + pages = {146-153.}, +} + + + +@article{Pa71, + author = {R. Parikh}, + title = {Existence and Feasibility in Arithmetic}, + journal = jsl, + year = 1971, + volume = 36, + number = 3, + pages = {494-508}, +} + + + +@article{PD83, + author = {J. B. Paris and C. Dimitracopoulos}, + title = {A Note on the Undefinability of Cuts}, + journal = jsl, + year = 1983, + volume = 48, + pages = {564-569}, +} + + +@inproceedings{PW81, + author = {J. B. Paris and A. J. Wilkie}, + title = {\mbox{$\Delta_0$} Sets and Induction}, + booktitle = {Proceedings of the \mbox{Jadswin} Logic Conference}, + year = 1981, + publisher = {Leeds University Press}, + pages = {237-248} +} + + +@article{Pa72, + author = {C. H. Parsons}, + title = {On $n-$Quantifier Induction}, + journal = jsl, + year = 1972, + volume = 37, + number = 3, + pages = {466-482}, +} + + +@article{Pu83, + author = {P. Pudl\'{a}k}, + title = {Some Prime Elements in the Lattice of Interpretability}, + journal = {Transactions of the AMS}, + year = 1983, + volume = 280, + pages = {255-275}, +} + + +@incollection{Pu84, + author = {P. Pudl\'{a}k}, + title = {On Lengths of Proofs of Finisitic Consistency Statements in First order Theories}, + booktitle = {Logic Colloquium 84}, + publisher = {North Holland}, + year = 1984, + pages = {165-196.} +} + + + +@article{Pu85, + author = {P. Pudl\'{a}k}, + title = {Cuts, Consistency Statements and Interpretations}, + journal = jsl, + year = 1985, + volume = 50, + number = 2, + pages = {423-442} +} + + + +@article{Pu87, + author = {P. Pudl\'{a}k}, + title = {Improved Bounds on the Lengths of Proofs of Finistic Consistency Statements}, + journal = {AMS Contemporary Mathematics Series}, + year = 1987, + volume = 65, + pages = {309-331}, +} + +@incollection{Pu96, + author = {P. Pudl\'{a}k}, + title = {On the Lengths of Proofs of Consistency}, + booktitle = {Collegium Logicum: Annals of the Kurt G\"{o}del}, + year = 1996, + publisher = {Springer-Wien}, + volume = 2, + pages = { 65-86}, +} + + + + +@incollection{Pu98, + author = {P. Pudl\'{a}k}, + title = {The Lengths of Proofs}, + booktitle = {The Handbook of Proof Theory} , + year = 1998, + publisher = {North Holland}, + pages = {547-636} +} + + + + + +@article{Ra93, + author = {Z. Ratajczyk}, + title = {Subsystems of True Arithmetic and Hierarchies of +Functions}, + journal = apal, + year = 1993, + volume = 64, + pages = { 95--152}, +} + + + +@book{Ro67, + author = {H. A. Rogers }, + title = {Theory of Recursive Functions and Effective Compatibility}, + publisher = {McGraw Hill}, + year = {1967} +} + + + +@article{Ro36, + author = {J. B. Rosser}, + title = {Extensions of Some Earlier Theorems by \mbox{ G\"{o}del and Church} }, + journal = jsl, + year = 1936, + volume = 1, + pages = {87-91}, +} + +@phdthesis{Sa1, + author = {S. Salehi}, + title = {Herbrand Consistency in Arithmetics with Bounded Induction}, + school = {Polish Academy}, + year = 2001 +} + + +@article{Sa12, + author = {S. Salehi}, + title = {Herbrand Consistency of Some Arithmetical Theories}, + journal = jsl, + year = 2012, + volume = 77, + number = 3, + pages = {807-827} +} + + +@incollection{Sm77, + author = {C. A. Smory\'{n}ski}, + title = {The Incompleteness Theorem}, + booktitle = { Handbook on Mathematical Logic}, + year = 1977, + publisher = {North Holland}, + pages = {821--865} +} + + + +@incollection{Sm85, + author = {C. A. Smory\'{n}ski}, + title = {Non-standard Models and Related Developments}, + booktitle = {Harvey Friedman's Research in the Foundations of Mathematics}, + year = 1985, + publisher = {North Holland}, + pages = {179--220} +} + + + + +@book{Smul, + author = {R. M. Smullyan}, + title = { First Order Logic}, + publisher = {Diver}, + year = {1995} +} + + + +@article{So88, + author = {R. M Solovay}, + title = {Injecting Inconsistencies into Models of \mbox{PA}}, + journal = apal, + year = 1988, + volume = 44, + pages = {102-132} +} + + +@misc{So94, + author = {R. M. Solovay}, + note = {Telephone +conversation +in 1994 +describing Solovay's generalization of one of Pudl\'{a}k's theorems +\cite{Pu85}, +using +some +methods +of Nelson and Wilkie-Paris \cite{Ne86,WP87}. +(The Appendix A of +\cite{ww1} offers a +4-page summary of +this conversation.)} +} + + +@article{Sv78, + author = {V. Svejdar}, + title = {Degrees of Interpretability}, + journal = carol, + year = 1978, + volume = 19, + pages = {783-813} +} + + + +@article{Sv83, + author = {V. Svejdar}, + title = {Modal Analysis of Generalized +\mbox{Rosser} Sentences}, + journal = jsl, + year = 1983, + volume = 48, + pages = {986-999} +} + + + + +@article{Sv7, + author = {V. Svejdar}, + title = {{An interpretation of Robinson arithmetic in its +Grzegorczjk's weaker variant}}, + journal = fund, + year = 2007, + volume = 81, + pages = {347-354} +} + + + + + +@book{Ta87, + author = {G. Takeuti}, + title = {Proof Theory}, + publisher = {North Holland}, + year = {1987} +} + + + + +@article{Ta0, + author = {G. Takeuti}, + title = {G\"{o}del Sentences of Bounded Arithmetic}, + journal = jsl, + year = 2000, + volume = 65, + pages = {1338-1346} +} + +@book{TMR53, + author = {A. Tarski and A. Mostowski and R. Robinson}, + title = {Undecidable Theories}, + publisher = { North Holland Press}, + year = 1953, +} + + +@inproceedings{Vi90, + author = {A. Visser}, + title = {Interpretability Logic}, + booktitle = {Mathematical \mbox{Logic: Proceedings of the Heyting Summer School}}, + year = 1988, + pages = {175-208}, +} + + +@article{Vi92, + author = {A. Visser}, + title = {An Inside View of Exp}, + journal = jsl, + year = 1992, + volume = 57, + pages = {131--165}, +} + + + +@article{Vi93, + author = {A. Visser}, + title = {The Unprovability of Small Inconsistency}, + journal = arch, + year = 1993, + volume = 32, + pages = {131--165}, +} + +@article{Vi5, + author = {A. Visser}, + title = {Faith and Falsity}, + journal = apal, + year = 2005, + volume = 131, + number = 1, + pages = {103--131} +} + +@article{VH73, + author = {P. Vop\v{e}nka and P. H\'{a}jek}, + title = {Existence of a Generalized Semantic Model of +\mbox{G\"{o}del-Bernays} Set Theory}, + journal = { Bulletin de l'Academie Polonaise des Sciences,Mathmatiques, Astromiques et Physiques}, + year = 1973, + volume = 12, + pages = {1079-1086}, +} +12 (1973) pp.1079-1086. + +@article{WP87, + author = {A. J. Wilkie and J. B. Paris}, + title = {On the Scheme of Induction for Bounded +Arithmetic}, + journal = apal, + year = 1987, + volume = 35, + pages = {261-302}, +} + + + + +@article{ww93, + author = {D. E. Willard}, + title = {Self-Verifying Axiom Systems}, + journal = spv, + year = 1993, + volume = 713, + pages = {325-336}, + note = {Proceedings of Third Kurt G\"{o}del Symposium} + } + +@article{sp0, + author = {D. E. Willard}, + title = {The semantic tableaux version of the second +incompleteness theorem extends almost to +\mbox{Robinson's} +arithmetic \mbox{Q} } , + journal = spv, + year = 2000, + volume = 1847, + pages = {415-430}, + note = {Proceedings of ``Tableaux-2000'' Conference } + } + + + +@article{ww1, + author = {D. E. Willard}, + title = {Self-Verifying Systems, the Incompleteness +Theorem and the +Tangibility Reflection Principle}, + journal = jsl, + year = 2001, + volume = 66, + number = 2, + pages = {536-596} +} + + + + +@article{ww2, + author = {D. E. Willard}, + title = {How to Extend The Semantic Tableaux And +Cut-Free Versions of the Second +Incompleteness Theorem Almost to +\mbox{Robinson's} +arithmetic \mbox{Q} } , + journal = jsl, + year = 2002, + volume = 67, + number = 1, + pages = {465-496} + } + + +@article{tab2, + author = {D. E. Willard}, + title = {Some New Exceptions for +the Semantic Tableaux Version of the +Second Incompleteness Theorem}, + journal = spv, + year = 2002, + volume = 2381, + pages = {281-297}, + note = { (``Tableaux-2002'' Conference Proceedings)} + } + + + + +@inproceedings{wwlogos, + author = {D. E. Willard}, + title = {A Version of the + Second Incompleteness Theorem For Axiom + Systems that Recognize Addition + But Not Multiplication as a Total Function}, + booktitle = {First Order Logic Revisited}, + year = {2004}, + address = {Berlin}, + pages = {337--368}, + editor = {V. Hendricks and F. Neuhaus and S. A. Pederson and U. Scheffler and H. Wansing}, + publisher = {Logos Verlag} +} + + + + +@misc{wwconf, + author = {D. E. Willard}, + title = {On Two Partial (and not Full) Respects +Where an Axiom System Can Recognize Its Own Consistency +and Multiplication as a Total Function}, + year = 2005, + note = {a presented talk at the +summer ASL-2005 conference in Athens whose +300-word abstract will be publised in the {\it Bulletin of +Symbolic Logic} and which is described in further detail in an +University of Albany technical report.} + + } + + + +@article{wwpete, + author = {D. E. Willard}, + title = {A New Variant of \mbox{Hilbert} Styled Generalization of the Second Incompleteness +Theorem and Some Exceptions to It}, + journal = apal, + year = 2006, + note = {A 200-word abstract summarizing +the contents of this +forthcoming invited article can be found on the +web-site of {\it The 2nd St. Petersburg Conference on Logic and +Computability (2003)}, i.e. http://logic.pdmi.ras.ru/2ndDays +or in the Atlas Mathematical Conference Abstracts.}, + + } + + + +@article{ww5, + author = {D. E. Willard}, + title = {An Exploration of the Partial Respects +in which an Axiom +System Recognizing Solely Addition as a Total Function Can +Verify Its Own Consistency}, + journal = jsl, + year = 2005, + volume = 70, + number = 4, + pages = {1171-1209}, +} + + +@article{sp5, + author = {D. E. Willard}, + title = {On the Partial Respects in which a +Real Valued Arithmetic System Can Verify its Tableaux Consistency}, + journal = spv, + year = 2005, + volume = 3702, + pages = {292-306}, +} + + +@article{wwapal, + author = {D. E. Willard}, + title = {A Generalization of the Second Incompleteness +Theorem and Some Exceptions to It}, + journal = apal, + year = 2006, + volume = 141, + number = 3, + pages = {472-496} + } + + + + + +@article{ww6, + author = {D. E. Willard}, + title = {On the Available Partial Respects in which + an Axiomatization +for Real Valued Arithmetic Can Recognize its +Consistency}, + journal = jsl, + year = 2006, + volume = 71, + number = 4, + pages = {1189-1199} +} + + + +@article{ww7, + author = {D. E. Willard}, + title = {{Passive induction and a solution to a Paris-Wilkie +open question}}, + journal = apal, + year = 2007, + volume = 146, + number = 2, + pages = {124-149} + } + + + + +@article{ww9, + author = {D. E. Willard}, + title = {{Some +specially formulated +axiomizations for I$\Sigma_0$ +manage to +evade +the Herbrandized version of the second incompleteness theorem}}, + journal = icomp, + year = 2009, + volume = 207, + number = 10, + pages = {1078-1093} + } + + +@article{ww14, + author = {D. E. Willard}, + title = {On the Broader Epistemological +Significance of Self-Justiying Axiom Systems}, + journal = spv, + year = 2014, + volume = 8652, + pages = {221-236}, + note = {(an earlier more abbreviated + version of this current article that had appeared in + the Proceedings of 21st Wollic Conference)} + } + + + +@article{Wr78, + author = {C. Wrathall}, + title = {Rudimentary Predicates and Relative Computation}, + journal = sicomp, + year = 1978, + volume = 7, + pages = {194-209} +} + + +@book{Yo5, + author = {P. Yourgrau}, + title = {A World Without Time: The Forgotten Legacy of +G\"{o}del and Einstein}, + publisher = {Basic Books}, + year = 2005, + note = {See page 58 for the passages we have quoted} +} diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/backup2.bib b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/backup2.bib new file mode 100644 index 0000000..6f575cd --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/backup2.bib @@ -0,0 +1,1062 @@ + +%% 2014 home feb 9 -3pm + +%% home 2015 jan5 same as suny copy and old ``may14'' + +%% 2014 may 14 5.1 pm + + +\bibliography +\bibliographystyle +@string{notre = " Notre Dame Journal on Formal Logic"} +@string{zeit = "Zeitscrfit fur Math Logic"} +@string{carol = "Com. Math. Univ. Carol"} +@string{arch = "Archive for Mathematical Logic"} +@string{spv = "Springer LNCS"}. +@string{spm = "Springer Lecture Notes in Mathematics"}. +@string{apal = "Annals Pure and Applied Logic"}. +@string{jsl = "Jour. Symb. Logic"} +@string{sicomp = "Siam Journal on Computing"} +@string{fund = " Fundamenta Mathematicae"} +@string{ljipl = "Logic Journal of the IPL"} +@string{icomp = "Information and Computation"} +@string{ma26 = "Mathematische Annalen"} + + + +@article{Ad2, + author = {Z. Adamowicz}, + title = {Herbrand Consistency and Bounded +Arithmetic}, + journal = fund, + year = 2002, + volume = 171, + number = 3, + pages = {279-292} +} + + + +@article{AB1, + author = {Z. Adamowicz and T. Bigorajska}, + title = {Existentially Closed Structures and \mbox{G\"{o}del's} Second Incompleteness Theorem}, + journal = jsl, + year = 2001, + volume = 66, + pages = {349-356}, +} + + + +@book{AZ96, + author = {Z. Adamowicz and P. Zbierski}, + title = {The Logic of Mathematics: A Modern Course in Classical Logic}, + publisher = {John Wiley and Sons}, + year = 1997 +} + + +@article{AZ1, + author = {Z. Adamowicz and P. Zbierski}, + title = {On \mbox{Herbrand} consistency in weak theories}, + journal = arch, + year = 2001, + volume = 40, + number = 6, + pages = {399-413} +} + + + + +@article{Ar90, + author = {T. Arai}, + title = {Derivability Conditions on \mbox{Rosser's} Proof Predicates}, + journal = notre, + year = 1990, + volume = 31, + pages = {487-497} +} + +@phdthesis{Be62, + author = {J. Benett}, + school = {Princeton University}, + year = 1962, + note = {A detailed summary of Benett's main theorem can +be found on pages 299--303 and 406 +of the H\'{a}jek-Pudl\'{a}k textbook \cite{HP91}} +} + +@article{BS76, + author = {A. Bezboruah and J. C. Shepherdson}, + title = {G\"{o}del's Second Incompleteness Theorem for \mbox{Q}}, + journal = jsl, + year = 1976, + volume = 41, + number = 2, + pages = {503-512} +} + + + + +@misc{Br94, + author = {S. Bringsford}, + note = {Private +conversation, 1994, helpfully suggesting +I place my mathematical and philosophical results +in distinctly separate articles.} + +} + +@book{Bu86, + author = {S. R. Buss}, + title = { Bounded Arithmetic}, + publisher = {Studies in Proof Theory, Lecture Notes 3, published +by Bibliopolis}, + year = 1986, + note = {(Revised version of Ph. D. Thesis.)} +} + + + +@article{BI95, + author = {S. R. Buss and A. Ignjatovic}, + title = {Unprovability of Consistency Statements in Fragments of Bounded Arithmetic}, + journal = apal, + year = 1995, + volume = 74, + number = 3, + pages = {221-244}, +} + + + +@book{Da97, + author = {J W Dawson}, + title = {Logical Dilemmas the life and work of +Kurt G\"{o}del}, + publisher = {AKPeters}, + year = 1997 +} + + + +@article{D89, + author = {C. Dimitracopoulos}, + title = {Overspill and Fragments of Arithmetic}, + journal = arch, + year = 1989, + volume = 28, + pages = {173-179}, +} + +@article{Fe60, + author = {S. 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G\"{o}del}, + title = {{\"{U}ber formal unentscheidbare S\"{a}tze der Principia +Mathematica und verwandter Systeme I}}, + journal = { Monatshefte f\"{u}r Math. Phys.}, + year = 1931, + volume = 38, + pages = {173-198} +} + + + +@inproceedings{Go33, + author = {K. G\"{o}del}, + title = {The present situation in the foundations of +mathematics}, + booktitle = {Collected Works Volume III: Unpublished Essays and Lectures}, + year = {2004}, + pages = {45--53}, + editor = {S. Feferman and J. W. Dawson and W. Goldfarb and C. Parson and R. Solovay}, + publisher = {Oxford University Press}, + note = {Our quotes from this 1933 lecture come from its page 52.} +} + + +@book{Go5, + author = {R. Goldstein}, + title = {Incompleteness The Proof and Paradox of Kurt G\"{o}del}, + publisher = {Norton}, + year = 2005 +} + + + +@article{Ha71, + author = {P. 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Pudl\'{a}k}, + title = { Metamathematics of First Order Arithmetic}, + publisher = {Springer Verlag}, + year = 1991 +} + + +@article{Hil26, + author = {D. Hilbert}, + title = {{\"{U}ber das Unendliche}}, + journal = ma26, + year = 1926, + volume = 95, + pages = {161-191} +} + + + + +@book{HB39, + author = {D. Hilbert and P. Bernays}, + title = { Grundlagen der Mathematik (Vol II)}, + publisher = {Springer}, + year = 1939 +} + + +@article{Je71, + author = {R. G. Jeroslow}, + title = {Consistency Statements in Formal Theories}, + journal = fund, + year = 1971, + volume = 72, + pages = { 17-40}, +} + + +@book{Ka91, + author = {R. Kaye}, + title = { Models of Peano Arithmetic}, + publisher = {Oxford University Press}, + year = 1991 +} + + +@article{Kl38, + author = {S. C. Kleene}, + title = {On Notation for Ordinal Numbers}, + journal = jsl, + year = 1938, + volume = 3, + number = 1, + pages = {150-156}, +} + + + +@article{Ko6, + author = {L. A. Ko{\l}odziejczyk}, + title = {On the +\mbox{Herbrand} Notion of Consistency for Finitely +Axiomatizable Fragments of Bounded Arithmetic Theories}, + journal = jsl, + year = 2006, + volume = 71, + number = 2, + pages = {624-638} +} + + + +@article{Kr87, + author = { J. Kraj\'{i}cek}, + title = {A Note on Proofs of Falsehood}, + journal = arch, + year = 26, + volume = 1987, + pages = {169-176} +} + + +@book{Kr95, + author = { J. Kraj\'{i}cek}, + title = {Bounded Propositional Logic and Complexity Theory}, + publisher = {Cambridge University Press}, + year = 1995 +} + + + + + + +@article{KT74, + author = {G. Kreisel and G. Takeuti}, + title = {Formally Self-Referential Propositions in Cut-Free Classical Analysis and Related Systems}, + journal = {Dissertationes Mathematicae}, + year = 1974, + volume = 118, + pages = {1--50} +} + + +@incollection{Li84, + author = {P. Lindstr\"{o}m}, + title = {On faithful Interpretability}, + booktitle = {Computation and Proof Theory}, + publisher = spm, + volume = 1104, + year = 1984, + pages = {279-288} +} + +@article{Lo55, + author = { M. H. L\"{o}b}, + title = {A Solution of a Problem of \mbox{Leon Henkin}}, + journal = jsl, + year = 1955, + volume = 20, + number = 2, + pages = {115-118}, +} + + + +@book{Mend, + author = {E. Mendelson}, + title = {Introduction to Mathematical Logic}, + publisher = { Chapman Hall}, + year = 2010 +} + + +@article{Mo58, + author = {R. Montague}, + title = {The Continuum of Relative Interpretability}, + journal = jsl, + year = 23, + volume = 1958, + pages = {494-511}, +} + + + +@article{Mo62, + author = {R. Montague}, + title = {Theories Incomparable with Respect to Interpretability}, + journal = jsl, + year = 1962, + volume = 27, + pages = {195-211}, +} + + +@article{My62, + author = {J. Mycieslski}, + title = {A Lattice Connected with + Relative Interpretability}, + journal = {Notices of AMS}, + year = 1962, + volume = 9, + pages = {407-408}, +} + + + +@book{Ne86, + author = {E. Nelson}, + title = {Predicative Arithmetic}, + publisher = { Math Notes, Princeton Univ Press}, + year = 1986 +} + + + +@article{Or61, + author = {S. Orey}, + title = {Relative Interpretations}, + journal = zeit, + year = 1961, + volume = 7, + pages = {146-153.}, +} + + + +@article{Pa71, + author = {R. Parikh}, + title = {Existence and Feasibility in Arithmetic}, + journal = jsl, + year = 1971, + volume = 36, + number = 3, + pages = {494-508}, +} + + + +@article{PD83, + author = {J. B. Paris and C. Dimitracopoulos}, + title = {A Note on the Undefinability of Cuts}, + journal = jsl, + year = 1983, + volume = 48, + pages = {564-569}, +} + + +@inproceedings{PW81, + author = {J. B. Paris and A. J. Wilkie}, + title = {\mbox{$\Delta_0$} Sets and Induction}, + booktitle = {Proceedings of the \mbox{Jadswin} Logic Conference}, + year = 1981, + publisher = {Leeds University Press}, + pages = {237-248} +} + + +@article{Pa72, + author = {C. H. Parsons}, + title = {On $n-$Quantifier Induction}, + journal = jsl, + year = 1972, + volume = 37, + number = 3, + pages = {466-482}, +} + + +@article{Pu83, + author = {P. Pudl\'{a}k}, + title = {Some Prime Elements in the Lattice of Interpretability}, + journal = {Transactions of the AMS}, + year = 1983, + volume = 280, + pages = {255-275}, +} + + +@incollection{Pu84, + author = {P. Pudl\'{a}k}, + title = {On Lengths of Proofs of Finisitic Consistency Statements in First order Theories}, + booktitle = {Logic Colloquium 84}, + publisher = {North Holland}, + year = 1984, + pages = {165-196.} +} + + + +@article{Pu85, + author = {P. Pudl\'{a}k}, + title = {Cuts, Consistency Statements and Interpretations}, + journal = jsl, + year = 1985, + volume = 50, + number = 2, + pages = {423-442} +} + + + +@article{Pu87, + author = {P. Pudl\'{a}k}, + title = {Improved Bounds on the Lengths of Proofs of Finistic Consistency Statements}, + journal = {AMS Contemporary Mathematics Series}, + year = 1987, + volume = 65, + pages = {309-331}, +} + +@incollection{Pu96, + author = {P. Pudl\'{a}k}, + title = {On the Lengths of Proofs of Consistency}, + booktitle = {Collegium Logicum: Annals of the Kurt G\"{o}del}, + year = 1996, + publisher = {Springer-Wien}, + volume = 2, + pages = { 65-86}, +} + + + + +@incollection{Pu98, + author = {P. Pudl\'{a}k}, + title = {The Lengths of Proofs}, + booktitle = {The Handbook of Proof Theory} , + year = 1998, + publisher = {North Holland}, + pages = {547-636} +} + + + + + +@article{Ra93, + author = {Z. Ratajczyk}, + title = {Subsystems of True Arithmetic and Hierarchies of +Functions}, + journal = apal, + year = 1993, + volume = 64, + pages = { 95--152}, +} + + + +@book{Ro67, + author = {H. A. Rogers }, + title = {Theory of Recursive Functions and Effective Compatibility}, + publisher = {McGraw Hill}, + year = {1967} +} + + + +@article{Ro36, + author = {J. B. Rosser}, + title = {Extensions of Some Earlier Theorems by \mbox{ G\"{o}del and Church} }, + journal = jsl, + year = 1936, + volume = 1, + pages = {87-91}, +} + +@phdthesis{Sa1, + author = {S. Salehi}, + title = {Herbrand Consistency in Arithmetics with Bounded Induction}, + school = {Polish Academy}, + year = 2001 +} + + +@article{Sa12, + author = {S. Salehi}, + title = {Herbrand Consistency of Some Arithmetical Theories}, + journal = jsl, + year = 2012, + volume = 77, + number = 3, + pages = {807-827} +} + + +@incollection{Sm77, + author = {C. A. Smory\'{n}ski}, + title = {The Incompleteness Theorem}, + booktitle = { Handbook on Mathematical Logic}, + year = 1977, + publisher = {North Holland}, + pages = {821--865} +} + + + +@incollection{Sm85, + author = {C. A. Smory\'{n}ski}, + title = {Non-standard Models and Related Developments}, + booktitle = {Harvey Friedman's Research in the Foundations of Mathematics}, + year = 1985, + publisher = {North Holland}, + pages = {179--220} +} + + + + +@book{Smul, + author = {R. M. Smullyan}, + title = { First Order Logic}, + publisher = {Diver}, + year = {1995} +} + + + +@article{So88, + author = {R. M Solovay}, + title = {Injecting Inconsistencies into Models of \mbox{PA}}, + journal = apal, + year = 1988, + volume = 44, + pages = {102-132} +} + + +@misc{So94, + author = {R. M. Solovay}, + note = {Telephone +conversation +in 1994 +describing Solovay's generalization of one of Pudl\'{a}k's theorems +\cite{Pu85}, +using +some +methods +of Nelson and Wilkie-Paris \cite{Ne86,WP87}. +(The Appendix A of +\cite{ww1} offers a +4-page summary of +this conversation.)} +} + + +@article{Sv78, + author = {V. Svejdar}, + title = {Degrees of Interpretability}, + journal = carol, + year = 1978, + volume = 19, + pages = {783-813} +} + + + +@article{Sv83, + author = {V. Svejdar}, + title = {Modal Analysis of Generalized +\mbox{Rosser} Sentences}, + journal = jsl, + year = 1983, + volume = 48, + pages = {986-999} +} + + + + +@article{Sv7, + author = {V. Svejdar}, + title = {{An interpretation of Robinson arithmetic in its +Grzegorczjk's weaker variant}}, + journal = fund, + year = 2007, + volume = 81, + pages = {347-354} +} + + + + + +@book{Ta87, + author = {G. Takeuti}, + title = {Proof Theory}, + publisher = {North Holland}, + year = {1987} +} + + + + +@article{Ta0, + author = {G. Takeuti}, + title = {G\"{o}del Sentences of Bounded Arithmetic}, + journal = jsl, + year = 2000, + volume = 65, + pages = {1338-1346} +} + +@book{TMR53, + author = {A. Tarski and A. Mostowski and R. Robinson}, + title = {Undecidable Theories}, + publisher = { North Holland Press}, + year = 1953, +} + + +@inproceedings{Vi90, + author = {A. Visser}, + title = {Interpretability Logic}, + booktitle = {Mathematical \mbox{Logic: Proceedings of the Heyting Summer School}}, + year = 1988, + pages = {175-208}, +} + + +@article{Vi92, + author = {A. Visser}, + title = {An Inside View of Exp}, + journal = jsl, + year = 1992, + volume = 57, + pages = {131--165}, +} + + + +@article{Vi93, + author = {A. Visser}, + title = {The Unprovability of Small Inconsistency}, + journal = arch, + year = 1993, + volume = 32, + pages = {131--165}, +} + +@article{Vi5, + author = {A. Visser}, + title = {Faith and Falsity}, + journal = apal, + year = 2005, + volume = 131, + number = 1, + pages = {103--131} +} + +@article{VH73, + author = {P. Vop\v{e}nka and P. H\'{a}jek}, + title = {Existence of a Generalized Semantic Model of +\mbox{G\"{o}del-Bernays} Set Theory}, + journal = { Bulletin de l'Academie Polonaise des Sciences,Mathmatiques, Astromiques et Physiques}, + year = 1973, + volume = 12, + pages = {1079-1086}, +} +12 (1973) pp.1079-1086. + +@article{WP87, + author = {A. J. Wilkie and J. B. Paris}, + title = {On the Scheme of Induction for Bounded +Arithmetic}, + journal = apal, + year = 1987, + volume = 35, + pages = {261-302}, +} + + + + +@article{ww93, + author = {D. E. Willard}, + title = {Self-Verifying Axiom Systems}, + journal = spv, + year = 1993, + volume = 713, + pages = {325-336}, + note = {Proceedings of Third Kurt G\"{o}del Symposium} + } + +@article{sp0, + author = {D. E. Willard}, + title = {The semantic tableaux version of the second +incompleteness theorem extends almost to +\mbox{Robinson's} +arithmetic \mbox{Q} } , + journal = spv, + year = 2000, + volume = 1847, + pages = {415-430}, + note = {Proceedings of ``Tableaux-2000'' Conference } + } + + + +@article{ww1, + author = {D. E. Willard}, + title = {Self-Verifying Systems, the Incompleteness +Theorem and the +Tangibility Reflection Principle}, + journal = jsl, + year = 2001, + volume = 66, + number = 2, + pages = {536-596} +} + + + + +@article{ww2, + author = {D. E. Willard}, + title = {How to Extend The Semantic Tableaux And +Cut-Free Versions of the Second +Incompleteness Theorem Almost to +\mbox{Robinson's} +arithmetic \mbox{Q} } , + journal = jsl, + year = 2002, + volume = 67, + number = 1, + pages = {465-496} + } + + +@article{tab2, + author = {D. E. Willard}, + title = {Some New Exceptions for +the Semantic Tableaux Version of the +Second Incompleteness Theorem}, + journal = spv, + year = 2002, + volume = 2381, + pages = {281-297}, + note = { (``Tableaux-2002'' Conference Proceedings)} + } + + + + +@inproceedings{wwlogos, + author = {D. E. Willard}, + title = {A Version of the + Second Incompleteness Theorem For Axiom + Systems that Recognize Addition + But Not Multiplication as a Total Function}, + booktitle = {First Order Logic Revisited}, + year = {2004}, + address = {Berlin}, + pages = {337--368}, + editor = {V. Hendricks and F. Neuhaus and S. A. Pederson and U. Scheffler and H. Wansing}, + publisher = {Logos Verlag} +} + + + + +@misc{wwconf, + author = {D. E. Willard}, + title = {On Two Partial (and not Full) Respects +Where an Axiom System Can Recognize Its Own Consistency +and Multiplication as a Total Function}, + year = 2005, + note = {a presented talk at the +summer ASL-2005 conference in Athens whose +300-word abstract will be publised in the {\it Bulletin of +Symbolic Logic} and which is described in further detail in an +University of Albany technical report.} + + } + + + +@article{wwpete, + author = {D. E. Willard}, + title = {A New Variant of \mbox{Hilbert} Styled Generalization of the Second Incompleteness +Theorem and Some Exceptions to It}, + journal = apal, + year = 2006, + note = {A 200-word abstract summarizing +the contents of this +forthcoming invited article can be found on the +web-site of {\it The 2nd St. Petersburg Conference on Logic and +Computability (2003)}, i.e. http://logic.pdmi.ras.ru/2ndDays +or in the Atlas Mathematical Conference Abstracts.}, + + } + + + +@article{ww5, + author = {D. E. Willard}, + title = {An Exploration of the Partial Respects +in which an Axiom +System Recognizing Solely Addition as a Total Function Can +Verify Its Own Consistency}, + journal = jsl, + year = 2005, + volume = 70, + number = 4, + pages = {1171-1209}, +} + + +@article{sp5, + author = {D. E. Willard}, + title = {On the Partial Respects in which a +Real Valued Arithmetic System Can Verify its Tableaux Consistency}, + journal = spv, + year = 2005, + volume = 3702, + pages = {292-306}, +} + + +@article{wwapal, + author = {D. E. Willard}, + title = {A Generalization of the Second Incompleteness +Theorem and Some Exceptions to It}, + journal = apal, + year = 2006, + volume = 141, + number = 3, + pages = {472-496} + } + + + + + +@article{ww6, + author = {D. E. Willard}, + title = {On the Available Partial Respects in which + an Axiomatization +for Real Valued Arithmetic Can Recognize its +Consistency}, + journal = jsl, + year = 2006, + volume = 71, + number = 4, + pages = {1189-1199} +} + + + +@article{ww7, + author = {D. E. Willard}, + title = {{Passive induction and a solution to a Paris-Wilkie +open question}}, + journal = apal, + year = 2007, + volume = 146, + number = 2, + pages = {124-149} + } + + + + +@article{ww9, + author = {D. E. Willard}, + title = {{Some +specially formulated +axiomizations for I$\Sigma_0$ +manage to +evade +the Herbrandized version of the second incompleteness theorem}}, + journal = icomp, + year = 2009, + volume = 207, + number = 10, + pages = {1078-1093} + } + + +@article{ww14, + author = {D. E. Willard}, + title = {On the Broader Epistemological +Significance of Self-Justiying Axiom Systems}, + journal = spv, + year = 2014, + volume = 8652, + pages = {221-236}, + note = {(an earlier more abbreviated + version of this current article that had appeared in + the Proceedings of 21st Wollic Conference)} + } + + + +@article{Wr78, + author = {C. Wrathall}, + title = {Rudimentary Predicates and Relative Computation}, + journal = sicomp, + year = 1978, + volume = 7, + pages = {194-209} +} + + +@book{Yo5, + author = {P. Yourgrau}, + title = {A World Without Time: The Forgotten Legacy of +G\"{o}del and Einstein}, + publisher = {Basic Books}, + year = 2005, + note = {See page 58 for the passages we have quoted} +} diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/bb.bib b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/bb.bib new file mode 100644 index 0000000..6f575cd --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/bb.bib @@ -0,0 +1,1062 @@ + +%% 2014 home feb 9 -3pm + +%% home 2015 jan5 same as suny copy and old ``may14'' + +%% 2014 may 14 5.1 pm + + +\bibliography +\bibliographystyle +@string{notre = " Notre Dame Journal on Formal Logic"} +@string{zeit = "Zeitscrfit fur Math Logic"} +@string{carol = "Com. Math. Univ. Carol"} +@string{arch = "Archive for Mathematical Logic"} +@string{spv = "Springer LNCS"}. +@string{spm = "Springer Lecture Notes in Mathematics"}. +@string{apal = "Annals Pure and Applied Logic"}. +@string{jsl = "Jour. Symb. Logic"} +@string{sicomp = "Siam Journal on Computing"} +@string{fund = " Fundamenta Mathematicae"} +@string{ljipl = "Logic Journal of the IPL"} +@string{icomp = "Information and Computation"} +@string{ma26 = "Mathematische Annalen"} + + + +@article{Ad2, + author = {Z. Adamowicz}, + title = {Herbrand Consistency and Bounded +Arithmetic}, + journal = fund, + year = 2002, + volume = 171, + number = 3, + pages = {279-292} +} + + + +@article{AB1, + author = {Z. Adamowicz and T. Bigorajska}, + title = {Existentially Closed Structures and \mbox{G\"{o}del's} Second Incompleteness Theorem}, + journal = jsl, + year = 2001, + volume = 66, + pages = {349-356}, +} + + + +@book{AZ96, + author = {Z. Adamowicz and P. Zbierski}, + title = {The Logic of Mathematics: A Modern Course in Classical Logic}, + publisher = {John Wiley and Sons}, + year = 1997 +} + + +@article{AZ1, + author = {Z. Adamowicz and P. Zbierski}, + title = {On \mbox{Herbrand} consistency in weak theories}, + journal = arch, + year = 2001, + volume = 40, + number = 6, + pages = {399-413} +} + + + + +@article{Ar90, + author = {T. Arai}, + title = {Derivability Conditions on \mbox{Rosser's} Proof Predicates}, + journal = notre, + year = 1990, + volume = 31, + pages = {487-497} +} + +@phdthesis{Be62, + author = {J. Benett}, + school = {Princeton University}, + year = 1962, + note = {A detailed summary of Benett's main theorem can +be found on pages 299--303 and 406 +of the H\'{a}jek-Pudl\'{a}k textbook \cite{HP91}} +} + +@article{BS76, + author = {A. Bezboruah and J. C. Shepherdson}, + title = {G\"{o}del's Second Incompleteness Theorem for \mbox{Q}}, + journal = jsl, + year = 1976, + volume = 41, + number = 2, + pages = {503-512} +} + + + + +@misc{Br94, + author = {S. Bringsford}, + note = {Private +conversation, 1994, helpfully suggesting +I place my mathematical and philosophical results +in distinctly separate articles.} + +} + +@book{Bu86, + author = {S. R. Buss}, + title = { Bounded Arithmetic}, + publisher = {Studies in Proof Theory, Lecture Notes 3, published +by Bibliopolis}, + year = 1986, + note = {(Revised version of Ph. D. Thesis.)} +} + + + +@article{BI95, + author = {S. R. Buss and A. Ignjatovic}, + title = {Unprovability of Consistency Statements in Fragments of Bounded Arithmetic}, + journal = apal, + year = 1995, + volume = 74, + number = 3, + pages = {221-244}, +} + + + +@book{Da97, + author = {J W Dawson}, + title = {Logical Dilemmas the life and work of +Kurt G\"{o}del}, + publisher = {AKPeters}, + year = 1997 +} + + + +@article{D89, + author = {C. Dimitracopoulos}, + title = {Overspill and Fragments of Arithmetic}, + journal = arch, + year = 1989, + volume = 28, + pages = {173-179}, +} + +@article{Fe60, + author = {S. Feferman}, + title = {Arithmetization of Metamathematics in a General Setting}, + journal = fund, + year = 1960, + volume = 49, + pages = { 35-92}, +} + + +@article{FKO60, + author = {S. Feferman and G. Kriesel and S. Orey}, + title = {1-Consistency and Faithful Interpretations}, + journal = arch, + year = 1962, + volume = 6, + pages = {52-63}, +} + + + + +@book{Fi90, + author = {M. Fitting}, + title = { First Order Logic and Automated Theorem Proving}, + publisher = {Springer}, + year = 1996 +} + +@techreport{Fr79a, + author = {H. M. Friedman}, + title = {On the Consistency, Completeness and Correctness +Problems}, + year = 1979, + institution = {Ohio State Univ}, + note = {See Pudl\'{a}k \cite{Pu96}'s summary of this result} +} + + + +@techreport{Fr79b, + author = {H. M. Friedman}, + title = {Translatability and Relative Consistency}, + year = 1979, + institution = {Ohio State Univ}, + note = {See Pudl\'{a}k \cite{Pu96}'s summary of this result} +} + +@article{Go31, + author = {K. G\"{o}del}, + title = {{\"{U}ber formal unentscheidbare S\"{a}tze der Principia +Mathematica und verwandter Systeme I}}, + journal = { Monatshefte f\"{u}r Math. Phys.}, + year = 1931, + volume = 38, + pages = {173-198} +} + + + +@inproceedings{Go33, + author = {K. G\"{o}del}, + title = {The present situation in the foundations of +mathematics}, + booktitle = {Collected Works Volume III: Unpublished Essays and Lectures}, + year = {2004}, + pages = {45--53}, + editor = {S. Feferman and J. W. Dawson and W. Goldfarb and C. Parson and R. Solovay}, + publisher = {Oxford University Press}, + note = {Our quotes from this 1933 lecture come from its page 52.} +} + + +@book{Go5, + author = {R. Goldstein}, + title = {Incompleteness The Proof and Paradox of Kurt G\"{o}del}, + publisher = {Norton}, + year = 2005 +} + + + +@article{Ha71, + author = {P. H\'{a}jek}, + title = {On Interpretability in Set Theory \mbox{Part I}}, + journal = carol, + year = 1971, + volume = 12, + pages = {73--79} +} + + +@article{Ha72, + author = {P. H\'{a}jek}, + title = {On Interpretability in Set Theory \mbox{Part II}}, + journal = carol, + year = 1972, + volume = 13, + pages = { 445-455} +} + + +@article{Ha81, + author = {P. H\'{a}jek}, + title = {Interpretability in Theories Containing Arithmetic}, + journal = carol, + year = 1981, + volume = 22, + pages = {225-234} +} + + + +@article{Ha7, + author = {P. H\'{a}jek}, + title = {Mathematical fuzzy logic and natural numbers}, + journal = fund, + year = 2007, + volume = 81, + pages = {155-163} +} + + +@article{Ha11, + author = {P. H\'{a}jek}, + title = {Towards metamathematics of weak arithmetics over +fuzzy}, + journal = ljipl, + year = 2011, + volume = 19, + number = 3, + pages = {467-475} +} + + + +@book{HP91, + author = {P. H\'{a}jek and P. Pudl\'{a}k}, + title = { Metamathematics of First Order Arithmetic}, + publisher = {Springer Verlag}, + year = 1991 +} + + +@article{Hil26, + author = {D. Hilbert}, + title = {{\"{U}ber das Unendliche}}, + journal = ma26, + year = 1926, + volume = 95, + pages = {161-191} +} + + + + +@book{HB39, + author = {D. Hilbert and P. Bernays}, + title = { Grundlagen der Mathematik (Vol II)}, + publisher = {Springer}, + year = 1939 +} + + +@article{Je71, + author = {R. G. Jeroslow}, + title = {Consistency Statements in Formal Theories}, + journal = fund, + year = 1971, + volume = 72, + pages = { 17-40}, +} + + +@book{Ka91, + author = {R. Kaye}, + title = { Models of Peano Arithmetic}, + publisher = {Oxford University Press}, + year = 1991 +} + + +@article{Kl38, + author = {S. C. Kleene}, + title = {On Notation for Ordinal Numbers}, + journal = jsl, + year = 1938, + volume = 3, + number = 1, + pages = {150-156}, +} + + + +@article{Ko6, + author = {L. A. Ko{\l}odziejczyk}, + title = {On the +\mbox{Herbrand} Notion of Consistency for Finitely +Axiomatizable Fragments of Bounded Arithmetic Theories}, + journal = jsl, + year = 2006, + volume = 71, + number = 2, + pages = {624-638} +} + + + +@article{Kr87, + author = { J. Kraj\'{i}cek}, + title = {A Note on Proofs of Falsehood}, + journal = arch, + year = 26, + volume = 1987, + pages = {169-176} +} + + +@book{Kr95, + author = { J. Kraj\'{i}cek}, + title = {Bounded Propositional Logic and Complexity Theory}, + publisher = {Cambridge University Press}, + year = 1995 +} + + + + + + +@article{KT74, + author = {G. Kreisel and G. Takeuti}, + title = {Formally Self-Referential Propositions in Cut-Free Classical Analysis and Related Systems}, + journal = {Dissertationes Mathematicae}, + year = 1974, + volume = 118, + pages = {1--50} +} + + +@incollection{Li84, + author = {P. Lindstr\"{o}m}, + title = {On faithful Interpretability}, + booktitle = {Computation and Proof Theory}, + publisher = spm, + volume = 1104, + year = 1984, + pages = {279-288} +} + +@article{Lo55, + author = { M. H. L\"{o}b}, + title = {A Solution of a Problem of \mbox{Leon Henkin}}, + journal = jsl, + year = 1955, + volume = 20, + number = 2, + pages = {115-118}, +} + + + +@book{Mend, + author = {E. Mendelson}, + title = {Introduction to Mathematical Logic}, + publisher = { Chapman Hall}, + year = 2010 +} + + +@article{Mo58, + author = {R. Montague}, + title = {The Continuum of Relative Interpretability}, + journal = jsl, + year = 23, + volume = 1958, + pages = {494-511}, +} + + + +@article{Mo62, + author = {R. Montague}, + title = {Theories Incomparable with Respect to Interpretability}, + journal = jsl, + year = 1962, + volume = 27, + pages = {195-211}, +} + + +@article{My62, + author = {J. Mycieslski}, + title = {A Lattice Connected with + Relative Interpretability}, + journal = {Notices of AMS}, + year = 1962, + volume = 9, + pages = {407-408}, +} + + + +@book{Ne86, + author = {E. Nelson}, + title = {Predicative Arithmetic}, + publisher = { Math Notes, Princeton Univ Press}, + year = 1986 +} + + + +@article{Or61, + author = {S. Orey}, + title = {Relative Interpretations}, + journal = zeit, + year = 1961, + volume = 7, + pages = {146-153.}, +} + + + +@article{Pa71, + author = {R. Parikh}, + title = {Existence and Feasibility in Arithmetic}, + journal = jsl, + year = 1971, + volume = 36, + number = 3, + pages = {494-508}, +} + + + +@article{PD83, + author = {J. B. Paris and C. Dimitracopoulos}, + title = {A Note on the Undefinability of Cuts}, + journal = jsl, + year = 1983, + volume = 48, + pages = {564-569}, +} + + +@inproceedings{PW81, + author = {J. B. Paris and A. J. Wilkie}, + title = {\mbox{$\Delta_0$} Sets and Induction}, + booktitle = {Proceedings of the \mbox{Jadswin} Logic Conference}, + year = 1981, + publisher = {Leeds University Press}, + pages = {237-248} +} + + +@article{Pa72, + author = {C. H. Parsons}, + title = {On $n-$Quantifier Induction}, + journal = jsl, + year = 1972, + volume = 37, + number = 3, + pages = {466-482}, +} + + +@article{Pu83, + author = {P. Pudl\'{a}k}, + title = {Some Prime Elements in the Lattice of Interpretability}, + journal = {Transactions of the AMS}, + year = 1983, + volume = 280, + pages = {255-275}, +} + + +@incollection{Pu84, + author = {P. Pudl\'{a}k}, + title = {On Lengths of Proofs of Finisitic Consistency Statements in First order Theories}, + booktitle = {Logic Colloquium 84}, + publisher = {North Holland}, + year = 1984, + pages = {165-196.} +} + + + +@article{Pu85, + author = {P. Pudl\'{a}k}, + title = {Cuts, Consistency Statements and Interpretations}, + journal = jsl, + year = 1985, + volume = 50, + number = 2, + pages = {423-442} +} + + + +@article{Pu87, + author = {P. Pudl\'{a}k}, + title = {Improved Bounds on the Lengths of Proofs of Finistic Consistency Statements}, + journal = {AMS Contemporary Mathematics Series}, + year = 1987, + volume = 65, + pages = {309-331}, +} + +@incollection{Pu96, + author = {P. Pudl\'{a}k}, + title = {On the Lengths of Proofs of Consistency}, + booktitle = {Collegium Logicum: Annals of the Kurt G\"{o}del}, + year = 1996, + publisher = {Springer-Wien}, + volume = 2, + pages = { 65-86}, +} + + + + +@incollection{Pu98, + author = {P. Pudl\'{a}k}, + title = {The Lengths of Proofs}, + booktitle = {The Handbook of Proof Theory} , + year = 1998, + publisher = {North Holland}, + pages = {547-636} +} + + + + + +@article{Ra93, + author = {Z. Ratajczyk}, + title = {Subsystems of True Arithmetic and Hierarchies of +Functions}, + journal = apal, + year = 1993, + volume = 64, + pages = { 95--152}, +} + + + +@book{Ro67, + author = {H. A. Rogers }, + title = {Theory of Recursive Functions and Effective Compatibility}, + publisher = {McGraw Hill}, + year = {1967} +} + + + +@article{Ro36, + author = {J. B. Rosser}, + title = {Extensions of Some Earlier Theorems by \mbox{ G\"{o}del and Church} }, + journal = jsl, + year = 1936, + volume = 1, + pages = {87-91}, +} + +@phdthesis{Sa1, + author = {S. Salehi}, + title = {Herbrand Consistency in Arithmetics with Bounded Induction}, + school = {Polish Academy}, + year = 2001 +} + + +@article{Sa12, + author = {S. Salehi}, + title = {Herbrand Consistency of Some Arithmetical Theories}, + journal = jsl, + year = 2012, + volume = 77, + number = 3, + pages = {807-827} +} + + +@incollection{Sm77, + author = {C. A. Smory\'{n}ski}, + title = {The Incompleteness Theorem}, + booktitle = { Handbook on Mathematical Logic}, + year = 1977, + publisher = {North Holland}, + pages = {821--865} +} + + + +@incollection{Sm85, + author = {C. A. Smory\'{n}ski}, + title = {Non-standard Models and Related Developments}, + booktitle = {Harvey Friedman's Research in the Foundations of Mathematics}, + year = 1985, + publisher = {North Holland}, + pages = {179--220} +} + + + + +@book{Smul, + author = {R. M. Smullyan}, + title = { First Order Logic}, + publisher = {Diver}, + year = {1995} +} + + + +@article{So88, + author = {R. M Solovay}, + title = {Injecting Inconsistencies into Models of \mbox{PA}}, + journal = apal, + year = 1988, + volume = 44, + pages = {102-132} +} + + +@misc{So94, + author = {R. M. Solovay}, + note = {Telephone +conversation +in 1994 +describing Solovay's generalization of one of Pudl\'{a}k's theorems +\cite{Pu85}, +using +some +methods +of Nelson and Wilkie-Paris \cite{Ne86,WP87}. +(The Appendix A of +\cite{ww1} offers a +4-page summary of +this conversation.)} +} + + +@article{Sv78, + author = {V. Svejdar}, + title = {Degrees of Interpretability}, + journal = carol, + year = 1978, + volume = 19, + pages = {783-813} +} + + + +@article{Sv83, + author = {V. Svejdar}, + title = {Modal Analysis of Generalized +\mbox{Rosser} Sentences}, + journal = jsl, + year = 1983, + volume = 48, + pages = {986-999} +} + + + + +@article{Sv7, + author = {V. Svejdar}, + title = {{An interpretation of Robinson arithmetic in its +Grzegorczjk's weaker variant}}, + journal = fund, + year = 2007, + volume = 81, + pages = {347-354} +} + + + + + +@book{Ta87, + author = {G. Takeuti}, + title = {Proof Theory}, + publisher = {North Holland}, + year = {1987} +} + + + + +@article{Ta0, + author = {G. Takeuti}, + title = {G\"{o}del Sentences of Bounded Arithmetic}, + journal = jsl, + year = 2000, + volume = 65, + pages = {1338-1346} +} + +@book{TMR53, + author = {A. Tarski and A. Mostowski and R. Robinson}, + title = {Undecidable Theories}, + publisher = { North Holland Press}, + year = 1953, +} + + +@inproceedings{Vi90, + author = {A. Visser}, + title = {Interpretability Logic}, + booktitle = {Mathematical \mbox{Logic: Proceedings of the Heyting Summer School}}, + year = 1988, + pages = {175-208}, +} + + +@article{Vi92, + author = {A. Visser}, + title = {An Inside View of Exp}, + journal = jsl, + year = 1992, + volume = 57, + pages = {131--165}, +} + + + +@article{Vi93, + author = {A. Visser}, + title = {The Unprovability of Small Inconsistency}, + journal = arch, + year = 1993, + volume = 32, + pages = {131--165}, +} + +@article{Vi5, + author = {A. Visser}, + title = {Faith and Falsity}, + journal = apal, + year = 2005, + volume = 131, + number = 1, + pages = {103--131} +} + +@article{VH73, + author = {P. Vop\v{e}nka and P. H\'{a}jek}, + title = {Existence of a Generalized Semantic Model of +\mbox{G\"{o}del-Bernays} Set Theory}, + journal = { Bulletin de l'Academie Polonaise des Sciences,Mathmatiques, Astromiques et Physiques}, + year = 1973, + volume = 12, + pages = {1079-1086}, +} +12 (1973) pp.1079-1086. + +@article{WP87, + author = {A. J. Wilkie and J. B. Paris}, + title = {On the Scheme of Induction for Bounded +Arithmetic}, + journal = apal, + year = 1987, + volume = 35, + pages = {261-302}, +} + + + + +@article{ww93, + author = {D. E. Willard}, + title = {Self-Verifying Axiom Systems}, + journal = spv, + year = 1993, + volume = 713, + pages = {325-336}, + note = {Proceedings of Third Kurt G\"{o}del Symposium} + } + +@article{sp0, + author = {D. E. Willard}, + title = {The semantic tableaux version of the second +incompleteness theorem extends almost to +\mbox{Robinson's} +arithmetic \mbox{Q} } , + journal = spv, + year = 2000, + volume = 1847, + pages = {415-430}, + note = {Proceedings of ``Tableaux-2000'' Conference } + } + + + +@article{ww1, + author = {D. E. Willard}, + title = {Self-Verifying Systems, the Incompleteness +Theorem and the +Tangibility Reflection Principle}, + journal = jsl, + year = 2001, + volume = 66, + number = 2, + pages = {536-596} +} + + + + +@article{ww2, + author = {D. E. Willard}, + title = {How to Extend The Semantic Tableaux And +Cut-Free Versions of the Second +Incompleteness Theorem Almost to +\mbox{Robinson's} +arithmetic \mbox{Q} } , + journal = jsl, + year = 2002, + volume = 67, + number = 1, + pages = {465-496} + } + + +@article{tab2, + author = {D. E. Willard}, + title = {Some New Exceptions for +the Semantic Tableaux Version of the +Second Incompleteness Theorem}, + journal = spv, + year = 2002, + volume = 2381, + pages = {281-297}, + note = { (``Tableaux-2002'' Conference Proceedings)} + } + + + + +@inproceedings{wwlogos, + author = {D. E. Willard}, + title = {A Version of the + Second Incompleteness Theorem For Axiom + Systems that Recognize Addition + But Not Multiplication as a Total Function}, + booktitle = {First Order Logic Revisited}, + year = {2004}, + address = {Berlin}, + pages = {337--368}, + editor = {V. Hendricks and F. Neuhaus and S. A. Pederson and U. Scheffler and H. Wansing}, + publisher = {Logos Verlag} +} + + + + +@misc{wwconf, + author = {D. E. Willard}, + title = {On Two Partial (and not Full) Respects +Where an Axiom System Can Recognize Its Own Consistency +and Multiplication as a Total Function}, + year = 2005, + note = {a presented talk at the +summer ASL-2005 conference in Athens whose +300-word abstract will be publised in the {\it Bulletin of +Symbolic Logic} and which is described in further detail in an +University of Albany technical report.} + + } + + + +@article{wwpete, + author = {D. E. Willard}, + title = {A New Variant of \mbox{Hilbert} Styled Generalization of the Second Incompleteness +Theorem and Some Exceptions to It}, + journal = apal, + year = 2006, + note = {A 200-word abstract summarizing +the contents of this +forthcoming invited article can be found on the +web-site of {\it The 2nd St. Petersburg Conference on Logic and +Computability (2003)}, i.e. http://logic.pdmi.ras.ru/2ndDays +or in the Atlas Mathematical Conference Abstracts.}, + + } + + + +@article{ww5, + author = {D. E. Willard}, + title = {An Exploration of the Partial Respects +in which an Axiom +System Recognizing Solely Addition as a Total Function Can +Verify Its Own Consistency}, + journal = jsl, + year = 2005, + volume = 70, + number = 4, + pages = {1171-1209}, +} + + +@article{sp5, + author = {D. E. Willard}, + title = {On the Partial Respects in which a +Real Valued Arithmetic System Can Verify its Tableaux Consistency}, + journal = spv, + year = 2005, + volume = 3702, + pages = {292-306}, +} + + +@article{wwapal, + author = {D. E. Willard}, + title = {A Generalization of the Second Incompleteness +Theorem and Some Exceptions to It}, + journal = apal, + year = 2006, + volume = 141, + number = 3, + pages = {472-496} + } + + + + + +@article{ww6, + author = {D. E. Willard}, + title = {On the Available Partial Respects in which + an Axiomatization +for Real Valued Arithmetic Can Recognize its +Consistency}, + journal = jsl, + year = 2006, + volume = 71, + number = 4, + pages = {1189-1199} +} + + + +@article{ww7, + author = {D. E. Willard}, + title = {{Passive induction and a solution to a Paris-Wilkie +open question}}, + journal = apal, + year = 2007, + volume = 146, + number = 2, + pages = {124-149} + } + + + + +@article{ww9, + author = {D. E. Willard}, + title = {{Some +specially formulated +axiomizations for I$\Sigma_0$ +manage to +evade +the Herbrandized version of the second incompleteness theorem}}, + journal = icomp, + year = 2009, + volume = 207, + number = 10, + pages = {1078-1093} + } + + +@article{ww14, + author = {D. E. Willard}, + title = {On the Broader Epistemological +Significance of Self-Justiying Axiom Systems}, + journal = spv, + year = 2014, + volume = 8652, + pages = {221-236}, + note = {(an earlier more abbreviated + version of this current article that had appeared in + the Proceedings of 21st Wollic Conference)} + } + + + +@article{Wr78, + author = {C. Wrathall}, + title = {Rudimentary Predicates and Relative Computation}, + journal = sicomp, + year = 1978, + volume = 7, + pages = {194-209} +} + + +@book{Yo5, + author = {P. Yourgrau}, + title = {A World Without Time: The Forgotten Legacy of +G\"{o}del and Einstein}, + publisher = {Basic Books}, + year = 2005, + note = {See page 58 for the passages we have quoted} +} diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/n.aux b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/n.aux new file mode 100644 index 0000000..91e79d6 --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/n.aux @@ -0,0 +1,305 @@ +\relax +\citation{Go31} +\citation{Yo5} +\citation{Go31} +\citation{Da97} +\citation{Go5} +\citation{Yo5} +\citation{Go33} +\citation{Hil26} +\citation{ww93} +\citation{ww14} +\citation{ww93} +\citation{ww14} +\citation{ww93} +\citation{ww14} +\@writefile{toc}{\contentsline {section}{\numberline {1}Introduction}{1}\protected@file@percent } +\newlabel{pppp1}{{1}{1}} +\citation{HB39} +\citation{Mend} +\citation{HB39} +\citation{ww14} +\@writefile{toc}{\contentsline {section}{\numberline {2}Background 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+\newblock Herbrand consistency and bounded arithmetic. +\newblock {\em Fundamenta Mathematicae}, 171(3):279--292, 2002. + +\bibitem{AZ1} +Z.~Adamowicz and P.~Zbierski. +\newblock On \mbox{Herbrand} consistency in weak theories. +\newblock {\em Archive for Mathematical Logic}, 40(6):399--413, 2001. + +\bibitem{BS76} +A.~Bezboruah and J.~C. Shepherdson. +\newblock G\"{o}del's second incompleteness theorem for \mbox{Q}. +\newblock {\em Jour. Symb. Logic}, 41(2):503--512, 1976. + +\bibitem{Bu86} +S.~R. Buss. +\newblock {\em Bounded Arithmetic}. +\newblock Studies in Proof Theory, Lecture Notes 3, published by Bibliopolis, + 1986. +\newblock (Revised version of Ph. D. Thesis.). + +\bibitem{BI95} +S.~R. Buss and A.~Ignjatovic. +\newblock Unprovability of consistency statements in fragments of bounded + arithmetic. +\newblock {\em Annals Pure and Applied Logic}, 74(3):221--244, 1995. + +\bibitem{Da97} +J.~W. Dawson. +\newblock {\em Logical Dilemmas the life and work of Kurt G\"{o}del}. +\newblock AKPeters, 1997. + +\bibitem{Fe60} +S.~Feferman. +\newblock Arithmetization of metamathematics in a general setting. +\newblock {\em Fundamenta Mathematicae}, 49:35--92, 1960. + +\bibitem{Fi90} +M.~Fitting. +\newblock {\em First Order Logic and Automated Theorem Proving}. +\newblock Springer, 1996. + +\bibitem{Fr79a} +H.~M. Friedman. +\newblock On the consistency, completeness and correctness problems. +\newblock Technical report, Ohio State Univ, 1979. +\newblock See Pudl\'{a}k \cite{Pu96}'s summary of this result. + +\bibitem{Fr79b} +H.~M. Friedman. +\newblock Translatability and relative consistency. +\newblock Technical report, Ohio State Univ, 1979. +\newblock See Pudl\'{a}k \cite{Pu96}'s summary of this result. + +\bibitem{Go31} +K.~G\"{o}del. +\newblock {\"{U}ber formal unentscheidbare S\"{a}tze der Principia Mathematica + und verwandter Systeme I}. +\newblock {\em Monatshefte f\"{u}r Math. Phys.}, 38:173--198, 1931. + +\bibitem{Go33} +K.~G\"{o}del. +\newblock The present situation in the foundations of mathematics. +\newblock In S.~Feferman, J.~W. Dawson, W.~Goldfarb, C.~Parson, and R.~Solovay, + editors, {\em Collected Works Volume III: Unpublished Essays and Lectures}, + pages 45--53. Oxford University Press, 2004. +\newblock Our quotes from this 1933 lecture come from its page 52. + +\bibitem{Go5} +R.~Goldstein. +\newblock {\em Incompleteness The Proof and Paradox of Kurt G\"{o}del}. +\newblock Norton, 2005. + +\bibitem{Ha7} +P.~H\'{a}jek. +\newblock Mathematical fuzzy logic and natural numbers. +\newblock {\em Fundamenta Mathematicae}, 81:155--163, 2007. + +\bibitem{Ha11} +P.~H\'{a}jek. +\newblock Towards metamathematics of weak arithmetics over fuzzy. +\newblock {\em Logic Journal of the IPL}, 19(3):467--475, 2011. + +\bibitem{HP91} +P.~H\'{a}jek and P.~Pudl\'{a}k. +\newblock {\em Metamathematics of First Order Arithmetic}. +\newblock Springer Verlag, 1991. + +\bibitem{Hil26} +D.~Hilbert. +\newblock {\"{U}ber das Unendliche}. +\newblock {\em Mathematische Annalen}, 95:161--191, 1926. + +\bibitem{HB39} +D.~Hilbert and P.~Bernays. +\newblock {\em Grundlagen der Mathematik (Vol II)}. +\newblock Springer, 1939. + +\bibitem{Je71} +R.~G. Jeroslow. +\newblock Consistency statements in formal theories. +\newblock {\em Fundamenta Mathematicae}, 72:17--40, 1971. + +\bibitem{Kl38} +S.~C. Kleene. +\newblock On notation for ordinal numbers. +\newblock {\em Jour. Symb. Logic}, 3(1):150--156, 1938. + +\bibitem{Ko6} +L.~A. Ko{\l}odziejczyk. +\newblock On the \mbox{Herbrand} notion of consistency for finitely + axiomatizable fragments of bounded arithmetic theories. +\newblock {\em Jour. Symb. Logic}, 71(2):624--638, 2006. + +\bibitem{Kr95} +J.~Kraj\'{i}cek. +\newblock {\em Bounded Propositional Logic and Complexity Theory}. +\newblock Cambridge University Press, 1995. + +\bibitem{KT74} +G.~Kreisel and G.~Takeuti. +\newblock Formally self-referential propositions in cut-free classical analysis + and related systems. +\newblock {\em Dissertationes Mathematicae}, 118:1--50, 1974. + +\bibitem{Lo55} +M.~H. L\"{o}b. +\newblock A solution of a problem of \mbox{Leon Henkin}. +\newblock {\em Jour. Symb. Logic}, 20(2):115--118, 1955. + +\bibitem{Mend} +E.~Mendelson. +\newblock {\em Introduction to Mathematical Logic}. +\newblock Chapman Hall, 2010. + +\bibitem{Ne86} +E.~Nelson. +\newblock {\em Predicative Arithmetic}. +\newblock Math Notes, Princeton Univ Press, 1986. + +\bibitem{Pa71} +R.~Parikh. +\newblock Existence and feasibility in arithmetic. +\newblock {\em Jour. Symb. Logic}, 36(3):494--508, 1971. + +\bibitem{Pa72} +C.~H. Parsons. +\newblock On $n-$quantifier induction. +\newblock {\em Jour. Symb. Logic}, 37(3):466--482, 1972. + +\bibitem{Pu85} +P.~Pudl\'{a}k. +\newblock Cuts, consistency statements and interpretations. +\newblock {\em Jour. Symb. Logic}, 50(2):423--442, 1985. + +\bibitem{Pu96} +P.~Pudl\'{a}k. +\newblock On the lengths of proofs of consistency. +\newblock In {\em Collegium Logicum: Annals of the Kurt G\"{o}del}, volume~2, + pages 65--86. Springer-Wien, 1996. + +\bibitem{Ro67} +H.~A. Rogers. +\newblock {\em Theory of Recursive Functions and Effective Compatibility}. +\newblock McGraw Hill, 1967. + +\bibitem{Sa12} +S.~Salehi. +\newblock Herbrand consistency of some arithmetical theories. +\newblock {\em Jour. Symb. Logic}, 77(3):807--827, 2012. + +\bibitem{Smul} +R.~M. Smullyan. +\newblock {\em First Order Logic}. +\newblock Diver, 1995. + +\bibitem{So94} +R.~M. Solovay. +\newblock Telephone conversation in 1994 describing Solovay's generalization of + one of Pudl\'{a}k's theorems \cite{Pu85}, using some methods of Nelson and + Wilkie-Paris \cite{Ne86,WP87}. (The Appendix A of \cite{ww1} offers a 4-page + summary of this conversation.). + +\bibitem{Sv7} +V.~Svejdar. +\newblock {An interpretation of Robinson arithmetic in its Grzegorczjk's weaker + variant}. +\newblock {\em Fundamenta Mathematicae}, 81:347--354, 2007. + +\bibitem{Vi5} +A.~Visser. +\newblock Faith and falsity. +\newblock {\em Annals Pure and Applied Logic}, 131(1):103--131, 2005. + +\bibitem{WP87} +A.~J. Wilkie and J.~B. Paris. +\newblock On the scheme of induction for bounded arithmetic. +\newblock {\em Annals Pure and Applied Logic}, 35:261--302, 1987. + +\bibitem{ww93} +D.~E. Willard. +\newblock Self-verifying axiom systems. +\newblock {\em Springer LNCS}, 713:325--336, 1993. +\newblock Proceedings of Third Kurt G\"{o}del Symposium. + +\bibitem{sp0} +D.~E. Willard. +\newblock The semantic tableaux version of the second incompleteness theorem + extends almost to \mbox{Robinson's} arithmetic \mbox{Q}. +\newblock {\em Springer LNCS}, 1847:415--430, 2000. +\newblock Proceedings of ``Tableaux-2000'' Conference. + +\bibitem{ww1} +D.~E. Willard. +\newblock Self-verifying systems, the incompleteness theorem and the + tangibility reflection principle. +\newblock {\em Jour. Symb. Logic}, 66(2):536--596, 2001. + +\bibitem{ww2} +D.~E. Willard. +\newblock How to extend the semantic tableaux and cut-free versions of the + second incompleteness theorem almost to \mbox{Robinson's} arithmetic + \mbox{Q}. +\newblock {\em Jour. Symb. Logic}, 67(1):465--496, 2002. + +\bibitem{tab2} +D.~E. Willard. +\newblock Some new exceptions for the semantic tableaux version of the second + incompleteness theorem. +\newblock {\em Springer LNCS}, 2381:281--297, 2002. +\newblock (``Tableaux-2002'' Conference Proceedings). + +\bibitem{wwlogos} +D.~E. Willard. +\newblock A version of the second incompleteness theorem for axiom systems that + recognize addition but not multiplication as a total function. +\newblock In V.~Hendricks, F.~Neuhaus, S.~A. Pederson, U.~Scheffler, and + H.~Wansing, editors, {\em First Order Logic Revisited}, pages 337--368, + Berlin, 2004. Logos Verlag. + +\bibitem{ww5} +D.~E. Willard. +\newblock An exploration of the partial respects in which an axiom system + recognizing solely addition as a total function can verify its own + consistency. +\newblock {\em Jour. Symb. Logic}, 70(4):1171--1209, 2005. + +\bibitem{wwapal} +D.~E. Willard. +\newblock A generalization of the second incompleteness theorem and some + exceptions to it. +\newblock {\em Annals Pure and Applied Logic}, 141(3):472--496, 2006. + +\bibitem{ww6} +D.~E. Willard. +\newblock On the available partial respects in which an axiomatization for real + valued arithmetic can recognize its consistency. +\newblock {\em Jour. Symb. Logic}, 71(4):1189--1199, 2006. + +\bibitem{ww7} +D.~E. Willard. +\newblock {Passive induction and a solution to a Paris-Wilkie open question}. +\newblock {\em Annals Pure and Applied Logic}, 146(2):124--149, 2007. + +\bibitem{ww9} +D.~E. Willard. +\newblock {Some specially formulated axiomizations for I$\Sigma_0$ manage to + evade the Herbrandized version of the second incompleteness theorem}. +\newblock {\em Information and Computation}, 207(10):1078--1093, 2009. + +\bibitem{ww14} +D.~E. Willard. +\newblock On the broader epistemological significance of self-justiying axiom + systems. +\newblock {\em Springer LNCS}, 8652:221--236, 2014. +\newblock (an earlier more abbreviated version of this current article that had + appeared in the Proceedings of 21st Wollic Conference). + +\bibitem{Wr78} +C.~Wrathall. +\newblock Rudimentary predicates and relative computation. +\newblock {\em Siam Journal on Computing}, 7:194--209, 1978. + +\bibitem{Yo5} +P.~Yourgrau. +\newblock {\em A World Without Time: The Forgotten Legacy of G\"{o}del and + Einstein}. +\newblock Basic Books, 2005. +\newblock See page 58 for the passages we have quoted. + +\end{thebibliography} diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/n.blg b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/n.blg new file mode 100644 index 0000000..cfa1f12 --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/n.blg @@ -0,0 +1,46 @@ +This is BibTeX, Version 0.99d (TeX Live 2020) 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b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/n.tex @@ -0,0 +1,4931 @@ +%% suny feb 11 noon removed bib + +% home 2014 Feb 9 9.6 -3pm old title with key words and bibliog added + +%% NEED to do SPELL + +%% godel t0 goedel and spell + +%%% home jan17 8.31 am + +%%% suny jannary11 spell 6pm + +% home 2015 january 10 7 am -minor amendment while listening Sinatra + +% home 2015 january 4 1.1 pm + +% home 2015 january 3 2.3 pm abstract and new-bib; jan4 3,1am reformat + + +%% 2014 home march 29 8.5 pm +%% AFTER PAPER SUBMITTED CHANGED LAST paragraph + +%% 2014 home march 28, 4.1 am suny 10.1 am changed 7 -10 to 6 -10 + +%IMPORTANT REMINDER Long Paper should prove Theorem 3 for D= sem tab + +%\documentclass[12pt]{article} +%\documentclass[10pt]{article} +%\documentclass[11pt]{article} +\documentclass[11pt]{article} + + + + + + + + +\usepackage{amssymb} + + + +\addtolength{\oddsidemargin}{-0.9in} + +\setlength{\textheight}{9.0 in} + + +\setlength{\textwidth}{6.5 in} +\setlength{\textwidth}{6.6 in} +\setlength{\textwidth}{6.4 in} + + + +% \addtolength{\topmargin}{-.5in} +% \addtolength{\topmargin}{-.9in} + \addtolength{\topmargin}{-.6in} + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +\newtheorem{corollary}{Corollary} +\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} + +%%% changed to double numbers + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + +\def\iii{IS$_D(\aaa)$} +\def\I2{IS$^{\#}_D(\beta)$} +\def\ik3{IS$^{\#}_D(\beta_{A,i})$} + +\def\js{IS$_D(A^*)$} +\def\ns{IS$^{\#}_D(\beta^*)$} + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + +%% +%% \title{ +%% %\Large +%% On the +%% %Broader +%% Epistemological +%% Significance of +%% Self-Justifying Axiom Systems +%% from a Semantic Tableaux Perspective} +%% + + + + +% old title is + + \title{ +%\Large +On the Broader +Epistemological +Significance of +Self-Justifying Axiom Systems} +% from the Perspective of Analytic Tableaux} + + + + + + + + + + + + + + + + + + + + + + + + + + +\def\aaa{A} +\def\ccc{Class} + + + + + + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + + + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{\normalsize This research +was partially supported +by the NSF Grant CCR 0956495. +\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + + + + +\date{State University of New York at Albany} + +\maketitle + + \setcounter{page}{0} + \thispagestyle{empty} + + + +\begin{abstract} +\large +\baselineskip = 1.5 \normalbaselineskip +This article will be a continuation of our +research into self-justifying +systems. +It will introduce +several +new theorems +(one of which +will transform our previous infinite-sized +self-verifying +logics +into formalisms +or purely finite size). +It will explain how self-justification +is useful, even when the Incompleteness +Theorem +clearly +does sharply +limit its +scope. +\end{abstract} + + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +{\large +{\bf Keywords and Phrases:} +G\"{o}del's Second Incompleteness Theorem, Hilbert's Second +Open Question, Semantic Tableaux Deduction, + Consistency.} + + +%% +%% \begin{quote} +%% %{\bf $~~~~$ Detailed Abstract (as requested by Call for Papers):} +%% {\bf $~~~~ $ Abstract:} +%% $~$ +%% This article will be a continuation of our research into self-justifying +%% systems. It will introduce several new theorems and then explore their +%% philosophical significance. Its two specific goals will be to: +%% \bed +%% \item[ A. ] +%% Explain how to transform our prior results about infinite-sized +%% self-verifying axiom systems into tighter results about axiom +%% systems of purely finite cardinality. +%% \item[ B. ] +%% Explain how self-justifying axiom systems are useful {\it even when +%% the Second Incompleteness Theorem specifies limits for their reach.} +%% In particular, this second part of our +%% research +%% %results +%% discourse +%% will explain how +%% self-justification is related to open questions and conjectures that +%% G\"{o}del and Hilbert raised in 1926 and 1931. +%% \ennd +%% \end{quote} + +%% +%% Our discussion will have a more philosophical and easier-to-comprehend tone +%% than the more mathematically styled presentation in our prior published +%% papers. +%% % +%% %Our discussion will have a more philosophical and easier-to-comprehend tone +%% %than the more mathematically styled in our prior published papers. +%% %% +%% %% The discussion in this article will have a more philosophical and +%% %% easier-to-comprehend tone than the mostly mathematical discourse in our +%% %% prior published papers. Its +%% %% +%% Its +%% concluding section will offer a new +%% interpretation of the Second Incompleteness Theorem, where G\"{o}del's +%% historic result is taken as being {\it robust and ubiquitous} from a purist +%% theoretical perspective, while +%% % still +%% permitting enough wiggle room to +%% explain how humans gain the {\it psychological motive} to cogitate in +%% applications-oriented engineering-style environments. + + + + +\normalsize + + + + +\baselineskip = 1.5\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\fgf {\baselineskip = 1.3 \normalbaselineskip } + + + +\bbint + + + + +\normalsize +%% \LARGE\baselineskip = 1.1\normalbaselineskip +\baselineskip = 1.2\normalbaselineskip + +%\vspace*{- 3.0 em} + +\newpage + + +\def\J1{IS$_D(~\cdot ~)$} + + + +\def\K1{IS$_D(~\cdot ~)$} +\def\J2{IS$^{\#}_D(~\cdot ~)$} + + +%%% ssssssssssssss +%% TEXT IS HERE + + \parskip 5 pt + +%%%%%\large + \baselineskip = 1.235 \normalbaselineskip + +\large + +\baselineskip = 1.6 \normalbaselineskip +\baselineskip = 2.0 \normalbaselineskip +\normalsize \baselineskip = 1.22 \normalbaselineskip + +\def\ssspace{\normalsize \baselineskip = 1.24 \normalbaselineskip } + +% \def\ssspace{\normalsize \baselineskip = 2.1 \normalbaselineskip } + +\ssspace + + \parskip 5 pt + +\section{Introduction} +\label{pppp1} + + +G\"{o}del's Incompleteness Theorem +has two parts. +Its +first half indicates no decision +procedure can identify +all of +arithmetic's + true statements. +Its + ``Second Incompleteness'' +result + specifies +sufficiently strong +logics +{\it cannot} verify their own consistency. +G\"{o}del +was careful to insert +a + caveat +into +his historic paper +\cite{Go31}, +indicating +a +{\it +diluted} +form +of Hilbert's Consistency Program +might +% have some success: +reach some +levels of +partial + success: +\begin{quote} +$*~$ +% (G\"{o}del \cite{Go31} 1931): +{\it ``It must be +expressly +noted +Proposition XI +(e.g. G\"{o}del's +``Second'' Incompleteness +Result) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and { there might +conceivably be finite proofs} which cannot +be stated in P or in ...''} +\end{quote} +Some +scholars +have interpreted +$\,*\,$ +as, possibly, +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialetica interpretation. +On the other hand, +the Stanford's Encyclopedia's +entry about G\"{o}del +quotes him, +in its + Section 2.2.4, +stating +he was hesitant to +view the +Second Incompleteness Theorem + as +fully +ubiquitous, until +learning +of Turing's +work. +Moreover, +Yourgrau \cite{Yo5} +states +von Neumann +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +Also, it is known + \cite{Da97,Go5,Yo5} +that +G\"{o}del + initially +presumed the +second theorem +was false, before proving his stunning +result. +%hhhh + + + +\smallskip + + + +In any case +several + year after he wrote $*$'s +initial + statement, +G\"{o}del gave a +1933 + lecture \cite{Go33}, +where he +told his audience +that +Hilbert's +initial +1926 objectives, summarized +formally +by + $**$ below, +had + {\it ``unfortunately''} +no +{\it + ``hope of succeeding along''} +its originally intended plans. +\begin{quote} +$**~$ (Hilbert \cite{Hil26} 1926): +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding itself.''} +\end{quote} + +Our research, in both the current article +and +the +prior papers +\cite{ww93}-\cite{ww14} +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}, +was stimulated by the prospect that we find $**$ enticing, +even though the Second Incompleteness +Theorem +{\it unequivocally} + demonstrates that logics +{\it cannot} recognize +their own consistency +{\it in a robust sense.} +Accordingly, we have studied +{\it both} generalizations and boundary-case exceptions +for the Second Incompleteness Theorem +in +\cite{ww93}-\cite{ww14}. +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +The current article will seek to +{\it both} strengthen these prior +results, +in the context of axiom systems +with +{\it + strictly finite cardinalities}, +and to also provide a more intuitive explanation of the +meaning +behind +\cite{ww93}-\cite{ww14}'s +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}'s +results. + +The thesis of this article will be delicate +because there can be no doubt that + the Second Incompleteness +Theorem is +sharply robust, +when viewed +from a + conventional +purist +mathematical + perspective. +On the other hand, we will argue that there are certain facets +of a ``Self-Justifying Logics'', that are tempting +under a hard-nosed +engineering perspective, +contemplating + sharply + {\it curtailed forms} of Hilbert's goals. +These results will be + fragile +{\it but +not +fully +immaterial.} + + +%bbbb +In other words, this +article will offer a somewhat complicated +2-part interpretation of the Second Incompleteness Theorem +where: +\bee +\item +The Second Incompleteness Theorem is seen as +being 100 \% +robust from a mathematical perspective +because of the +% ubiquitous and +widely +encompassing nature of the 1939 +Hilbert-Bernays analysis \cite{HB39} (centering around +their three +well-known +``Derivability Conditions'' \cite{Mend} ). +\item +On the other hand, our discourse +will partially +appreciate Hilbert's reluctance +to fully embrace the Second Incompleteness Theorem, +despite his +joint +work with Bernays \cite{HB39} +generalizing the Second Incompleteness Effect. +(This is +because it is awkward to explain how human beings can +% undeniable +acquire the mental energy +for motivating themselves to cogitate, +without possessing some type of instinctive faith +in their own self-consistency.) +\ene +%It is in the context where +Thus, +the current article + will seek to +separate a {\it ``mathematical''} from +what perhaps should be +{\it ``engineering-style''} + appreciation +of one's +internal consistency. We will seek to define and explore the +latter +%nature of this +%engineering notion in the current article +(with the hope that it will help formalize how future +21st century computers can benefit from its engineering-style +%% notion +perspective, +while still respecting +%%% at the same time +the strict prohibitions formalized by +G\"{o}del's millennial result.) + + +As the reader examines this paper, it should be kept in mind +that +it does +focus on +% the properties of +semantic tableaux +deduction (similar to the earlier +% more abbreviated +discussion that had +appeared in \cite{ww14}'s more abbreviated +conference-style summary of our results). +A second paper, currently under preparation, +will examine Hilbert-style deductive systems (whose +self-justification properties +are partially analogous and partly +quite +different from +% our +tableaux-style systems). +The combination of these two results will formally +define both the potential of self-justifying logics +and the limitations which the Second Incompleteness +Theorem imposes upon them. + + +%% +%% In other words, the theme of this article will be that conventional +%% interpretations of the Second Incompleteness Theorem are +%% certainly 100 \% +%% correct from a mathematical perspective. +%% as foreseen very rigorously +%% as early as 1939 +%% by Hilbert-Bernays \cite{HB39}. +%% This is because +%% no formalism can +%% recognize its own consistency in a very robust +%% strictly +%% %purely +%% mathematical +%% respect. +%% On the other hand, it also +%% seems +%% evident +%% %% appears apparent +%% % undeniable +%% that +%% human beings +%% will +%% %would +%% find it awkward +%% %be unable +%% to acquire the mental energy +%% for motivating themselves to cogitate, +%% without possessing some type of instinctive faith +%% in their own self-consistency. +%% This perhaps should be +%% called an +%% % {\it quasi- +%% {\it engineering=style appreciation} of one's +%% internal consistency. We seek to define and explore the +%% nature of this +%% engineering notion in the current article +%% (with the hope that it will help formalize how future +%% 21st century computers can benefit from this engineering-style +%% notion while, of course, respecting +%% %%% at the same time +%% the strict prohibitions formalized by +%% G\"{o}del's millennial result.) + + + +\section{Background Setting} +\label{pppp2} + + +Let + $( \alpha , d )$ +denote any axiom system +and deduction method satisfying +the +simple {\bf ``Split Rule''} +below$\,$\footnote{Our + ``Split Rule'' +is the trivial requirement + that all the axiom sentences in +$~\alpha~$ are +technically +{\it proper axioms}, and + that +deduction method $~d~$ is +required +to include +{\bf BOTH} a finite number of rules of inference +and +whatever ``logical axioms'' are needed +{\it (if any ? )} +by $\,d$'s methodology. +(This +trivial +Split-Rule +notation convention will +help us to provide a +%%hhhh +precisely formalized statement of our results. + .)}. +This pair +will +be called {\bf ``Self Justifying''} when: +\begin{description} + \item[ i ] one of $ \, \alpha \,$'s theorems +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +second + $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +requirement. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +\begin{quote} +$\bullet~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of the +system $ \alpha $ +with {\it this} +sentence ``SelfRef$(\alpha,d)$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +noted +how +to +encode +rough + analogs of + ``SelfRef$(\alpha,d)$''. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii's +requirement. + + +%% hhhh +This problem arises in +many +contexts besides + G\"{o}del's +paradigm, +where $\alpha$ was an extension of Peano Arithmetic +(see +\cite{Ad2,AZ1,BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Ko6,KT74,Lo55,Pa71,Pa72,Pu85,Pu96,Ro67,Sa12,So94,Sv7,Vi5,WP87,ww2,wwlogos,ww7}). +Such results formalize +paradigms where +self-justification is infeasible, +due to diagonalization issues. +(It should, +perhaps, + be added that among this +lengthy list of articles, +it was especially +\cite{Ad2,Bu86,Go31,Lo55,Pu85,So94,WP87}'s +incompleteness results that +influenced our +work in +\cite{ww93}-\cite{ww14}.) +% in \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}.) +In any case, the main point is that +most +logicians +have +hesitated +to + employ +an +analog of a + SelfRef$(\alpha,d)$ + axiom +because + $ \alpha^d = \alpha+$SelfRef$(\alpha,d) $ +is +typically +inconsistent. + + + + + + + + + +Our research +in \cite{ww93,ww1,ww5,ww6,wwapal} +focused on +paradigms +where +self-justification is feasible. +It +involved weakening +the properties +a +logic +can prove +about +addition and/or +multiplication +(to avoid +potential +difficulties). +To be more precise, let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote +3-way predicates +specifying +$x+y=z$ and +$x*y=z$. +Then a +logic +will be said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} iff it +includes +sentences +1-3 as axioms. + +\vspace*{- 0.4 em} +{\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + +\vspace*{- 1.2 em} + +A +logic +$\alpha$ +will be called +{\bf Type-M} iff it contains +\ref{totdefxs}-\ref{totdefxm} +as axioms, +{\bf $~$Type-A} iff it contains only +\eq{totdefxs} and \eq{totdefxa} as axioms, +{\bf $~$Type-S} iff it contains +only \eq{totdefxs} as an + axiom, and +{\bf $\,$Type-NS$\,$} iff it contains +none of these axioms. +The relationship of these constructs to +self-justification +is explained by +items (a) and (b): +\bed +\item[ a. ] +The existence of +Type-A systems that can recognize +their own +consistency under semantic tableaux deduction, +while proving +analogs of +all +Peano Arithmetic's + $\Pi_1$ theorems (in a slightly different language), +were +%%hhhh +demonstrated in +\cite{tab2,ww5}. +Also, \cite{ww1,wwapal} noted that +some +specialized +forms +of +Type-NS systems +can +likewise +recognize their +own Hilbert consistency. + + + +\item[ b. ] +The above +evasions of the Second Incompleteness +Theorem are known to be near-maximal in a mathematical sense. +This is because +the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} implied no +natural +Type-S system can recognize its Hilbert consistency, +and Willard +subsequently + \cite{ww2,ww7,ww9} +hybridized their formalisms with some techniques of +Adamowicz-Zbierski +\cite{Ad2,AZ1} +to establish that most +Type-M systems cannot recognize their +own semantic +tableaux consistency. +\ennd + + + +Other +fascinating +efforts to +evade the Second Incompleteness Theorem +have used +the Kreisel-Takeuti ``CFA'' +system \cite{KT74} +or the +the {\it interpretational framework} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to our approach +because they +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Instead, CFA uses the +special +properties of ``second order'' generalizations of Gentzen's +{\it cut-free} +Sequent Calculus, +and +the +interpretational approach +formalizes how some systems +recognize their + Herbrand consistency +on localized sets of integers, +which +unbeknownst to +themselves, +includes all +integers. +(These alternate results are interesting but +unrelated to our approach.) + + + + + + + +\section{Defining Notation and Earlier Results} +\label{pppp3} + +\label{sect3} + + + +A function $F $ +will be called {\bf Non-Growth} +iff +$ F(a_1...a_j) +\leq Maximum(a_1...a_j)$ +holds. +Six examples of +non-growth functions are +\bee +\small +\parskip 0pt +%hhhh +\item +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +\item +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +\item +$Maximum(x,y),$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +\item +$\,Root(x,y) \, = \, \lfloor \, x^{1/y} \, \rfloor~$. and +\item$Count(x,j)$ designating the number of ``1'' bits +among $ x$'s rightmost $ j $ bits. +\ene +The term +{\bf U-Grounding Function} +referred in \cite{ww5} to +a set of +primitives, +which included the +preceding +functions plus the {\it growth operations} of addition and +{\it Double$(x)=x+x$}. +Our language $L^*$ was +built +out of these +symbols, +plus the primitives of +``0'', ``1'', + ``$ \, = \, $'' +and ``$ \, \leq \, $''. + + + + +In a context where $~\, t \, ~$ is any term in \cite{ww5}'s +language $L^*$, +$\,$the quantifiers in +%% the wffs +$~ \forall ~ v \leq t~~ \Psi (v)~$ and $~ \exists ~ v \leq t~~ \Psi (v)$ +were called {\it bounded +quantifiers}. +Any formula in + $L^*$, +all of whose +quantifiers are bounded, was called +a $\Delta_0^*$ formula. +The $~\Pi_n^{* }~$ and $~\Sigma_n^{* }~$ formulae +were +then defined by the +usual +rules that: +\bee +\item +Every +$\Delta_0^*$ formula is considered to +be +``$~\Pi_0^{* }~$'' and +also + ``$~\Sigma_0^{* }~$''. +\item +A +wff +is called + $ \,\Pi_n^{* } \,$ +when it is encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ with +$\Phi$ being $\Sigma_{n-1}^{* }$ +\item +Also, +a wff +is called + $\Sigma_n^*$ +when it is encoded as +$\exists v_1 ..\exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{* }$. +\ene + +%%bbb +Our articles \cite{ww93,tab2,ww5} used the symbol $~D~$ to denote +a deduction method. +They focused mostly around the +semantic tableaux deductive methodology, +whose formal definition can be found in the textbooks +by Fitting and Smullyan +\cite{Fi90,Smul} and whose +definition is also reviewed +by Appendix A of the current article. + +%%bbb +Our articles \cite{wwlogos,ww5} +also considered an improved faster deductive technology, + called +{\bf Tab-k + deduction}, that +consists of a +speeded-up version of a +tableaux, +which +permits a +{\it limited analog} of +Gentzen-style deductive +cuts +for $\Pi_k^*$ and $\Sigma_k^*$ formulae. +Thus, if + $~H~$ +denotes a sequence of ordered pairs +$~(t_1,p_1),~(t_2,p_2),~...~(t_n,p_n),~$ +where $~p_i~$ is a Semantic Tableaux proof of the theorem $~t_i,~$ +then $H$ +has been + called a +{\bf ``Tab-k +Proof''} +of a theorem $~T~$ +from $\alpha$'s axioms + iff $~T=t_n~$ +and also: +\begin{enumerate} +\item +Each of the ``intermediately derived theorems'' +$~t_1,t_2, \, ... \, , t_{n-1}~$ +have a complexity no greater than that of +either a $\Pi_k^*$ or $\Sigma_k^*$ sentence. +\item +Each +proper axiom in $ p_i$'s +proof +comes +either +from $\alpha$ or is + one of $ t_1,t_2, \, ... \, , t_{i-1} $. +\end{enumerate} +Thus, a +Tab-k proof is essentially a generalization of a classic +semantic tableaux proof that essentially owns the equivalent of +an +extra specialized modus ponens rule for + $\Pi_k^*$ and $\Sigma_k^*$ sentences. + +Let +us say +an axiom system $\alpha$ +has a {\bf Level-J Understanding} +of its own +consistency +under a deduction method $D$ +iff $\alpha$ can prove that there exists no proofs +using +its axioms and $D$'s deduction +of both a +$\Pi_J^*$ theorem and its negation. +In this notation, items A and B summarize +\cite{sp0,ww2,wwlogos,ww5,ww7}'s +main +results: +\bed +\item[ A. ] + For +any +axiom system $A$ using $L^*\,$'s + U-Grounding language, +\cite{ww5} +showed its +IS$_D(A)$ formalism +could prove +all $A$'s $\Pi_1^*$ theorems and simultaneously +verify its +Level-1 +consistency under +\txl{1} deduction. + +\smallskip + +\item[ B. ] +Two negative results, tightly complementing +item A's +positive result, +were exhibited +in +\cite{sp0,ww2,wwlogos,ww7}. The first +was that \cite{sp0,ww2,ww7} showed +most +systems +are +unable to verify their +Level-0 consistency under +semantic tableaux +deduction, + when they included +statement +\eq{totdefxm}'s ``Type-M'' +axiom that multiplication +is a total function. Moreover, \cite{wwlogos} +offered an alternate +form +of this + incompleteness +result, +showing statement +\eq{totdefxa}'s +{\it +far weaker} +Type-A +systems +cannot +verify +their Level-0 consistency under +\txl{2} deduction. +\ennd + + + + +The contrast between these +positive and negative results +has + led to our conjecture that +automated +theorem provers +are likely + to +eventually +achieve +a fragmentary part of the ambitions +that were +suggested by Hilbert +in +$**\,$. +This is because +the question of whether a +formalism can support an +{\it idealized Utopian} +conception of +its own consistency is {\it +different} from +exploring the degrees to which +theorem-provers +can possess +a {\it fragmentary +knowledge} of +their own +consistency. +The +Incompleteness Theorem +has demonstrated +an Utopian idealized form of self-justification +is unobtainable, +but our research has found some +diluted +cousins +of this construct are +feasible +%%% hhhh +and warrant examination. + + +%%%bbbbb +In summary, +%as a reader examines the remainder of this article, +it should be kept in mind, +during the remainder of this article, +that the Hilbert-Bernays Derivability Conditions +\cite{HP91,HB39,Mend} +impose severe limits upon any evasion of +the Second Incompleteness Theorem. +% that are inexorable. +On the other hand, +it appears that a + human's + faith in his own consistency +is an essential +prequisite to gain the needed + psychological +motivation for +% cogitating. +stimulating cogitation? +% motivate to cogitate. +%cogitation, is also a non-trivial agent. +(This is why we suspect Hilbert was never willing +to concede that all facets of his consistency program +%would be +were +hopeless.) +A broad theme of this paper will, +% thus +thus, +be that it +is helpful to distinguish between the goals of +a +theoretical-oriented study of arithmetic from +that of +a more engineering-styled approach, +since the +Second Incompleteness Theorem is a perfect result +from the first perspective while it permits +for +% some +well-defined +limited-scale part-way exceptions from +the second vantage point. + +%% Above sentence replaces below + + +%% Our interest in +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% was +%% % stimulated by such +%% raised by these +%% considerations. + + +%% It is for this reason that +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% from the preceding two paragraphs, +%% warrant investigation. +%% +%are so important. + + +%% Their +%% two subtle contrasts will be our +%% main +%% focus +%% % of our attention +%% %in the remainder of this article. +%% in the rest of this article. +%% + + +\section{The IS$_D(A)$ Axiom System} +\label{pppp4} + + +\label{sect4} + +In a context where $~A~$ denotes any axiom +system using + $L^*\,$'s +U-Grounding language, IS$_D(A)$ +was defined +in \cite{ww5} +to be an axiomatic +formalism capable of recognizing all of +$A$'s $\Pi_1^*$ theorems and +corroborating +its own Level-1 consistency under $D$'s deductive method. +It +consisted of the +following four +groups of axioms: +\begin{description} +\item[Group-Zero:] +Two of the Group-zero axioms +did +% will +define +the +constant-symbols, +$\bar{c}_0$ +and $\bar{c}_1$, +designating the integers of 0 and 1. +The +Group-zero axioms +will +also define the +growth functions of addition and +$~Double(x) \, = \, x+x.~$ +The +net effect of these +axioms will be to set up a machinery to +define +any +integer +$~n \geq 2~$ +using fewer than +$3 \cdot \lceil \, $Log$~n~ \rceil \,$ +logic symbols. + + + + + +\item[Group-1:] +This axiom group +did +% will + consist of a +finite set of $\Pi_1^{*} $ sentences, denoted as $~F~$, which +can prove any $\Delta_0^*$ sentence that +holds true under the standard model of the natural numbers. +(Any finite set of +$\Pi_1^{*} $ sentences $~F~$ +with this property +may be used to define Group-1, +as \cite{ww5} noted.) + + + +\item[Group-2:] +Let $\ulxyz \Phi \urxyz$ denote +$\Phi$'s G\"{o}del Number, and +HilbPrf$_A(\ulxyz \Phi \urxyz,p)$ denote a +$\Delta_0^{*} $ formula indicating +$~p~$ is a +Hilbert-styled proof of +theorem $~\Phi~$ from +axiom system $A$. +For each $\Pi_1^{*} $ sentence $\Phi$, the +Group-2 schema +of \cite{ww5} +did +% will + contain an axiom of +form \eq{group2}. +(Thus IS$_D(A)$ can trivially prove + all $A$'s +$\Pi_1^{*} $ theorems.) +\begin{equation} +\forall ~p~~~\{~ \mbox{HilbPrf$_A(\ulxyz \Phi \urxyz,p)$} + ~~ +\Rightarrow ~~ \Phi~~\} +\label{group2} +\end{equation} +\item[Group-3:] +This final part of the IS$_D(\aaa)$ +essentially represented +% will be +a +self-referencing +$\Pi_1^*$ +axiom, +indicating +IS$_D(\aaa)$ meets +\textsection 3's criteria of being +``Level-1 consistent'' +under deductive method $D$. +It +amounts, +%is, +thus, +to the following declaration: +\begin{quote} +\# $~${\it No two +proofs exist +for +a $\Pi_1^{*} $ sentence +and its negation, when +$D$'s deductive method is applied to an axiom system, +consisting of +the {\it union} +of +Groups 0, 1 and 2 with {\bf $\,$this sentence$\,$} +(looking at itself).} +\end{quote} + +One encoding of \#, +$\,$as a self-referencing +$\Pi_1^{*} $ +axiom, +appears + in +\cite{ww5}. +%% hhhh0000000000 +Thus, +the +below +sentence +\eq{group3} +represents +\cite{ww5}'s +$\Pi_1^{*}\, $ styled +encoding for$~$ + \# +in a context where: +\bed +\item[ i. ] +$~~\mbox{Prf} \, _{\mbox{IS}_D(A)}(a,b) \, $ is +a + $\Delta_0^{*} $ formula +indicating +that +$ \, b \, $ is a proof + of a theorem $\, a\,$ +under + $\mbox{IS}_D(A)$'s axiom system +and $D$'s deduction method, +$\,~$and +\item[ ii. ] +$~~$Pair$(x,y)$ is a $\Delta_0^{*} $ formula +indicating +that $ \, x \, $ is a + $\Pi_1^{*} $ sentence +and +% that + $ \, y \, $ +represents +$ \, x \,$'s negation. +\end{description} +%% A summary of the formal techniques that +%% \cite{ww5} used to encode +%% sentence +%% \eq{group3} is provided in Appendix B. +\end{description} +\begin{equation} +\forall ~x~\forall ~y~\forall ~p~\forall ~q~~~~ \neg ~~ +[~~ \mbox{Pair}(x,y)~ \wedge ~ +~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(x,p)~ +\wedge ~ ~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(y,q)~ ] +\label{group3} +\end{equation} + +\begin{remark} \label{remc} +\rm +A +fully formal +summary of the techniques that +\cite{ww5} used to encode +%the +sentence +\eq{group3} is provided by +the combination of Appendices B and C. +The former appendix summarizes our +methods for generating the G\"{o}del numbers +of semantic tableaux and \txl{k} proofs +in an optimally compressed manner. +The latter appendix explores how +sentence +\eq{group3}'s self-referencing statement is precisely encoded. +\end{remark} + +{\bf Notation.} An operation $~I(~\bullet~)~$ that maps +an initial axiom system $\,\aaa \,$ onto an alternate +system $\,I(\aaa)\, $ will be called {\bf Consistency Preserving} +iff $\,I(\aaa)\, $ is consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers. In this +context, +\cite{ww5} demonstrated: + + +\begin{theorem} +\label{ttt1} +\label{thold} +Suppose +the symbol $D$ denotes either semantic +tableaux deduction or its \txl{1} generalization. +Then the IS$_D(~\bullet~)~$ mapping operation is consistency preserving +(e.g. +IS$_D(\aaa) $ +will be consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers). +\end{theorem} + +We emphasize +the most difficult part of \cite{ww5}'s +result was +neither the definition of its +IS$_D(\aaa) $'s axiom system nor the +$\Pi_1^*$ fixed-point + encoding of \eq{group3}'s Group-3 axiom. +Instead, +the key challenge + was the +confirming +of \thx{thold}'s +``Consistency Preservation'' +property. + + +The +confirming of +this +property +is +subtle +because its invariant breaks down when +$~D~$ is a deduction method only slightly stronger than +either semantic tableaux or \txl{1} deduction. +Thus, Pudl\'{a}k's and Solovay's +work \cite{Pu85,So94} +implies \thx{thold}'s analog fails when $D$ represents +Hilbert deduction, and \cite{wwlogos} showed its generalization + fails +even when $D$ represents \txl{2} deduction. + + + + + + + + +\section{A Finitized Generalization of \thx{thold}'s Methodology} +\label{pppp5} + + +\label{sect5} + +%%%mmmm +One +difficulty with IS$_D(\aaa)$ +was +is +that it +employed +an infinite number of different +incarnations of +sentence \eq{group2} +in its Group-2 scheme (since it contained one incarnation +of this sentence for each $\Pi_1^*$ sentence $\Phi$ in +$L^*\,$'s language). Such a Group-2 schema is awkward because +it simulates $A$'s +$\Pi_1^*$ +knowledge almost via a brute-force +enumeration. + + +Our Definition \ref{dd-is2} and Theorems +\ref{ttt2} and \ref{ttt3} will show how +to +mostly +overcome this problem by +compressing the infinite number +of +instances of sentence \eq{group2} in +IS$_D(\aaa)$'s Group-2 schema into +a purely finite structure. + +\smallskip + +\begin{definition} +\label{dd-is2} +\rm +Let $~\beta~$ denote any +finite set of +axioms that have + $\Pi_1^*$ encodings. +Then +\I2 +will denote an axiom system, +similar to IS$_D(\aaa)$, except +its Group-2 +scheme will employ $~\beta\,$'s set of axioms, +instead of using an infinite number of applications +of +statement \eq{group2}'s scheme. +(Thus, +the +{\it ``I am consistent''} statement +in \I2's Group-3 +axiom will be the same as before, except that +the {\it ``I am''} +fragment of its +self-referencing +statement +will reflect +these + changes in Group-2 in the obvious manner.) +\end{definition} + + + +\begin{theorem} +\label{ttt2} +Let + $D$ again denote either +semantic +tableaux +or \txl{1} deduction, +and $\beta$ again denote a set of +$\Pi_1^*$ axioms. +Then +\I2 +will be consistent whenever all +$\beta$'s axioms hold +true under the standard model. +(In other words, + \I2 +will satisfy an analog of \thx{ttt1}'s +consistency preservation property for IS$_D(\aaa) $.) +\end{theorem} + +%%bbbb +\thx{ttt2}'s +proof +is almost identical to +\cite{ww5}'s proof of \thx{ttt1}. +Its proof is too lengthy to repeat here. +Instead \textsection \ref{newppp9} +will +briefly summarize its +%% +%% provide +%% a +%% brief +%% %detailed +%% % an intuitive +%% summary +%% of the +%% formal +%% % germane +%% +proof. +This +abbreviated discussion +%% discourse +should be sufficient to explain +the gist behind the +proof's core +%needed +formalism, +%proofs, +without delving into +\cite{ww5}'s +full +%%%%% too many +%full +% formal +details. + +%%bbbb +Our next definition will enable us to formalize +the main application of +\thx{ttt2} that will be considered +here. +%during the present article. +It will essentially explain how +{\bf finite-sized} + self-justifying + logics + can provide an + {\bf infinite amount } + of + ``kernelized'' + $\Pi_1^*$ +styled +information. + + + +%%% It will. +%%% not be +%%% repeated in this extended abstract. +%%% Instead, +%%% this section +%%% will apply +%%% \thx{ttt2} +%%% to +%%% show how +%%% {\bf finite-sized} +%%% self-justifying +%%% logics +%%% can provide an +%%% {\bf infinite amount } +%%% of +%%% ``kernelized'' +%%% $\Pi_1^*$ information. +%%% + +\begin{definition} +\label{dkern} +\rm +Let +Test$_i(t,x)$ +denote any $\Delta_0^*$ formula, +and $~\ulcorner \Psi \urcorner ~$ denote +$\, \Psi\,$'s G\"{o}del number. Then +Test$_i(t,x)$ will be called a {\bf Kernelized Formula} +iff Peano Arithmetic can prove every $\Pi_1^*$ sentence +$~\Psi~$ satisfies \eq{testker}'s +identity: +\beq +\label{testker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +There are +infinitely +many + $\Delta_0^*$ predicates +Test$_1(t,x)$, Test$_2(t,x)$, Test$_3(t,x)$ ... +satisfying this kernelized condition +(one of which is illustrated by Example \ref{eex1}). +An enumerated list of all +the available kernels +is +called a {\bf Kernel-List}. +\end{definition} + +\begin{example} \label{eex1} \rm +The set of +true $\Sigma_1^*$ sentences is +r.e. +This +implies +there +exists a $\Delta_0^*$ formula, +called say Probe$(g,x)$, +such +that $~g~$ +is +the G\"{o}del number of +a $\Sigma_1^*$ statement that holds true in the Standard +Model +if and only if +%iff +\eq{e-probe} is true: +\beq +\label{e-probe} +\exists ~x~~~ \mbox{Probe}(g,x)~\wedge~ x \geq g +\enq +Now, let Pair$(t,g)$ denote a $\Delta_0^*$ formula +that specifies $~t~$ is the G\"{o}del number of +a $\Pi_1^*$ statement and + $~g~$ is +the $\Sigma_1^*$ formula which is its negation. +Then our notation implies +that + $~t~$ +is +a true + $\Pi_1^*$ statement +if and only if \eq{e-2probe} holds true: +\beq +\label{e-2probe} +\forall ~x~~~ +\neg~[~\exists ~g ~\leq~x~~~~~ \mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)~~] +\enq +Thus if +Test$_0(t,x)$ +denotes the $\Delta_0^*$ formula of +$~ \neg~[~\exists ~g \, \leq \, x~~ +\mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)]$, +it +is one example of what +Definition \ref{dkern} +would +call a +``Kernelized Formula''. +\end{example} + +\begin{definition} +\label{def3} +\rm +Let us recall +Definition \ref{dkern} +defined +{\bf Kernel-List} to be an enumeration of +all the +kernelized formulae +Test$_1(t,x)$, + Test$_2(t,x)$, Test$_3(t,x)...~$. +Assuming +Test$_i(t,x)$ is the $i-$th element in this +list +and +$\Psi$ is an arbitrary $\Pi_1^*$ sentence, +the +{\bf i-th Kernel Image} +of $\, \Psi \,$ + will be +defined as +the +following $\Pi_1^*$ +sentence: +\beq +\label{imagker} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +\end{definition} + +\begin{example} \label{eex2} \rm +The Definitions +\ref{dkern} +and \ref{def3} suggest that there is a + subtle relationship +between a sentence $~\Psi~$ and its $i-$th kernel image. +This is because +Definition \ref{dkern} +indicates that Peano Arithmetic can prove the invariant +\eq{testker}, indicating that + $~\Psi~$ +is equivalent to + its $i-$th kernel image. +However, a weak axiom system +can be plausibly uncertain about +whether this +equivalence +does formally hold. +This invariant is duplicated below: +\beq +\label{againtestker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq + +% equivalence holds. + +%mm% +Thus if a weak axiom system proves statement +\eq{imagker} (rather than $~\Psi~$), +it +%% may +will + not be able to equate these +two +results +(unless it is able to verify +\eq{againtestker}'s identity). +This problem will apply to \thx{ttt3}'s +formalism. +However, \thx{ttt3} will +% be +still +remain + of much interest +because \textsection \ref{pppp6} will +illustrate a +methodology that +can overcome +many of \thx{ttt3}'s limitations. +\end{example} + + + + + + + +\begin{theorem} +\label{ttt3} +Let $~A~$ denote any +system, +whose + axioms hold +true +in arithmetic's standard model, +and $~i~$ denote the index +of any of +Definition \ref{dkern}'s +kernelized formulae + Test$_i(t,x)$. +Then it is possible to construct a +finite-sized +collection of $\Pi_1^*$ sentences, called say + $\beta_{A,i}$, +where +\ik3 +satisfies the following invariant: +\begin{quote} +If $~\Psi~$ is one of the +$\Pi_1^*$ theorems of + $~A~$ +then \ik3 can prove +\eq{imagker}'s +statement + (e.g. it will prove the +``the $\, i-$th kernelized image'' +of +$~\Psi\,$). +\end{quote} +\end{theorem} + +\newpage + +\noindent +{\bf Proof Sketch:} +Our justification of +\thx{ttt3} will +use the following notation: +\bee +\item +Check$(t)$ will denote a $\Delta_0^*$ formula +that +produces a Boolean value of ``True'' when +$t$ represents the G\"{o}del +number of a $\Pi_1^*$ sentence. +\item + $~\mbox{HilbPrf}_A \,( t , q )~$ +will denote + a $\Delta_0^*$ formula that indicates +$~q~$ is a Hilbert-style proof of the theorem +$~t~$ from axiom system $~A~$. +\item +For any kernelized +Test$_i(t,x)$ +formula, GlobSim$_i$ +will +denote \eq{globsim}'s $\Pi_1^*$ sentence. +(It will be called $A$'s $i-$th +{\bf ``Global Simulation Sentence''}.) +\ene +\beq +\label{globsim} +\forall ~t~~ +\forall ~q~~ +\forall ~x~~\{~~ +[~~\mbox{HilbPrf}_A \,( t , q )~~ \wedge ~~ +\mbox{Check}(t)~~]~~~ +\Longrightarrow ~~~ +\mbox{Test}_i(t,x)~~~ \} +\enq + +%%mm +In this notation, +%%%the requirements of +\thx{ttt3} +shall +%will +be satisfied by any +version of the axiom system \I2, whose Group-2 schema $~\beta~$ +is a finite sized +consistent set of $\Pi_1^*$ sentences +that has +\eq{globsim} +as an axiom. +(This includes +the minimal sized such system, +% which we will +denoted as $~\beta_{A,i}~$, +that has only \eq{globsim} as an axiom.) +This is because +%Thus, +if +$\Psi$ is any +$\Pi_1^*$ theorem of $A$ whose proof +is denoted as $~\bar{p}~$, then both the +$\Delta_0^*$ predicates of +$\mbox{HilbPrf}_A \,( \ulxyz \Psi \urxyz , \bar{p} )$ and +$\mbox{Check}( \ulxyz \Psi \urxyz )$ +will hold true. +%are true. +Moreover, +IS$^{\#}_D$'s +%%%%%%%%%%%%%% \I2's +Group-1 axiom subgroup was defined so that +it can automatically prove all + $\Delta_0^*$ sentences that are true. +Hence, +%Thus, + \ik3 will + prove these two statements and +then automatically +%hence +corroborate (via axiom +\eq{globsim}) the further statement +of: +\beq +\label{interm} +\forall ~x~~ +\mbox{Test}_{\, i \,}(~ \ulxyz \Psi \urxyz ~,~x~ ) +\enq +%Hence +Thus +for each of the infinite number of $\Pi_1^*$ +theorems that $~A~$ proves, the above defined +formalism will prove a matching statement +that corresponds to +its +%% the + $\, i-$th kernelized image. $~~\Box$ + + +%% of +%% each +%% such proven theorem. +%% $~~\Box$ + +\section{ L-Fold Generalizations of \thx{ttt3} } +\label{pppp6} + + + + +\thx{ttt3} +is of +interest +because every axiom system $\,A\,$ +will have +its formalism +\ik3 +prove the + $\, i-$th kernelized image of every + $\Pi_1^*$ theorem that $A$ proves. +This fact is helpful +because +\eq{testker}'s invariance +holds for all $\Pi_1^*$ sentences. +Moreover, our +``U-Grounded'' +$\Pi_1^*$ sentences +capture all +Conventional Arithmetic's +{\it crucial} +$\Pi_1$ +information +because they can +view +multiplication as a 3-way + $\Delta_0^*$ +predicate +Mult$(x,y,z)$ +via +\eq{neweq1}'s +encoding of this predicate. +\begin{equation} +\label{neweq1} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x} \, 100~$? +%hhhh +Is the use of +such a sequence +%use, +for corroborating the Second Incompleteness +Effect +% , thus essentially, +%thereby +resting +% , essentially, +%, at least partially, +upon an +% an inherently +almost +artificial construct +(with + an +inherently +dizzying growth rate) ? +\end{quote} + + + +We will not attempt to derive a Yes-or-No answer to Question $***$ +because +we think that such a direct +response +%%% answer +is too simplistic. +Our point is that +both a positive and negative reply to + $***$ +are useful in different respects. +%% +%% it +%% is one of those epistemological questions that can be +%% debated +%% endlessly. +%% Our point is that $***$ +%% probably does not require a definitive +%% positive or negative answer because both perspectives +%% are useful. +%% +%% Thus, +%% the theoretical existence of a sequence +This because +the theoretical existence of a sequence +integers +of $ y_0, y_1, y_2, ... $, whose binary +encodings are doubling in length, is tempting +from the perspective of +an Utopian view of mathematics, while +awkward from an engineering styled +perspective. +We therefore ask: {\it ``Why not be tolerant +of both perspectives? ''} + +One virtue of +this tolerance is +it +ushers in +a greater understanding +for the statements $*$ and $**$ that G\"{o}del and +Hilbert made during +1926 and 1931. +This +is +because the +Incompleteness Theorem +demonstrates +no +formalism can display +an understanding of its own consistency in an +idealized + Utopian +sense. On the other hand, +\textsection 6 +suggested +these +two +remarks by G\"{o}del and Hilbert + might receive +more sympathetic interpretations, +if one +sought to explore +such questions from a less ambitious +almost engineering-style perspective. + + + + +Our +main thesis is +supported by a +theorem +from \cite{ww6}. It indicated that +tableaux +variations of self-justifying systems have no difficulty +in recognizing that an infinitized generalization of +a computer's +floating point multiplication (with rounding) is a total +function. The latter +differs from integer-multiplication, +by not having its output become double the length of +its input when a number is multiplied by itself. +Thus, the +intuitive +reason +\cite{ww6}'s + multiplication-with-rounding operation +is compatible with self-justification is +because it + avoids the +inexorable +exponential +growth under +rule \eq{smart-squeeze}'s sequence + $ y_0, y_1, y_2 .. ~ $. + +\bigskip + + +%\newpage + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + +%% bbbbbbb +Also, \thx{ttt4} indicates +self-justifying logics +can view +double-precision +integer multiplication +similarly +as + a total function. +In particular for +any arbitrary pair +of integers + $(a,b)$, +let us employ a notation convention where: +\bee +\item +{\bf Size(a,b)} denotes the maximum of +$ \, \lceil \, 1 \, + \,$Log$_2 \,a \, \rceil \, $ +and +$ \, \lceil \, 1 \, + \,$Log$_2 \,b \, \rceil \, $. +% $\, 1 \, + \,$Log$_2 \,b \,$. +\item The quantities +{\bf Left$(a,b)$} +and {\bf Right$(a,b)$} +represent the multiplicative product +of +the integers +$~a~$ and $~b~,~$ insofar as +Right$(a,b)$ +represents the rightmost bits of this product +of length Size(a,b), and +Left$(a,b)$ encodes the remaining bits to the left +of Right$(a,b)$ +(whose length will also be bounded by Size(a,b) ). +\ene +Within this context, +\thx{ttt4} indicates +self-justifying logics +self-justification +are able to view double-precision +integer-multiplication as +a total function. + +%% bbbbb +\begin{theorem} +\label{ttt4} +Let us assume +the $ \,A \,$ in +IS$_D(\aaa)$ and +$\ \beta \,$ in +\I2 +are axiom systems all of whose $\Pi_1^*$ +theorems are true statements under the standard model +of the natural numbers. +Then +if $D$ corresponds to either semantic tableaux or +\txl{1} deduction, +it is possible to formalize +systems +$~A^* \, \supseteq \, A~$ +and +$~\beta^* \, \supseteq \, \beta~$ +such that \js and \ns are self-justifying +extensions of respectively +IS$_D(\aaa)$ and +\I2 +which can recognize +%that +each of +the +double-multiplicative precision +operations of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ +%(that define the double-precision multiplicative product +%of $a$ and $b$) +as total functions. +\end{theorem} + +%% bbbbb +{\bf Proof Sketch;} The justification of \thx{ttt4} +is +% very +similar to +\cite{ww6}'s analysis of +Floating Point Multiplication +(with rounding). Our proof of \thx{ttt4} +will therefore be quite abbreviated. + +%% bbbbb +The first point is that it is +% quite +straightforward +to develop three $\Delta_0^*$ formulae, +called $\theta_1(a,b,y)$, + $~\theta_2(a,b,y)$ +and + $\theta_3(a,b,y)$, +that are the graphs of the functions + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +% Moreover, it +It +is also easy to construct a +finite set of $\Pi_1^*$ sentences, +holding true in the Standard Model, +called $~\gamma~$, +that know how to correctly interpret these three + $\Delta_0^*$ formulae, +insofar as $~\gamma~$ knows: +\bee +\item For each +%fixed +$a$ and $b$, there exists no more +than one integer $~y~$ that satisfies each of our +three $\theta_j(a,b,y)$ formulae. +\item For each +%fixed +$a$ and $b$, +our three $\theta_j(a,b,y)$ formulae +correctly simulate +the +graphs of +the respective +functions of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +\ene +%Moreover since +Since +our U-Grounding language contains the built-in +function primitives of ``Maximum'' and``Double$(x)$'', +the Group-1 component of +IS$_D$ +and IS$_D^{\#}$ +% formalisms +can +easily +verify that +the + operation +$F(a,b)$, defined below is a total function: +\beq +\label{F-def} +~F(a,b)~~=~~\mbox{ Double (Double (Double (Max}(a,b)))) +\enq +This implies, in turn, that +there exists a $\Pi_1^*$ sentence, called $\gamma^*$, that +will enable our formalism to verify that each of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ are total functions (simply because +their output values are less than +$~F(a,b)$'s output). + +The main point is that the hypothesis of \thx{ttt4} + indicated that +all the axioms of + $ \,A \,$ and +$\ \beta \,$ +did hold +true under the Standard Model, +and the preceding paragraph showed the same +was + true for all the axioms in + $~\gamma~$ and $~\gamma^*~$, +Hence all the axioms in +$~A^*~=~A~+~ \gamma~+~\gamma^*~$ +and +$~\beta^*~=~\beta~+~ \gamma~+~\gamma^*~$ +also +hold true in the Standard Model. +By Theorems \ref{ttt1} and \ref{ttt2}, +this implies that +IS$_D(\aaa)$ and +\I2 and are self-justifying formalism +satisfying \thx{ttt4}'s claims. $~~\Box$ + + + +%% \ik3 +%% represents Peano Arithmetic. Then +%% IS$_D(\aaa)$ and \ik3 +%% can formalize +%% two total functions, called Left$(a,b)$ +%% and Right$(a,b)$, +%% where any pair +%% of integers +%% $(a,b)$ +%% is mapped onto +%% the left and right halves of +%% $a$ and $b$'s multiplicative +%% product. + + +\begin{remark} +\rm +\label{rem-new} +One +subtle +%% slightly tricky +aspect is that our positive +results, +involving +\cite{ww6}'s +floating point multiplication +primitive +and \thx{ttt4}'s +analogous +double precision multiplication +operation, +{\it should +not be confused} with a +quite different +exploration of integer multiplication +in the context of our analysis of Herbrand +consistency +in \cite{ww9}. +The latter took advantage +of the fact that +our deployed + Herbrand-styled proofs +%%% in \cite{ww9}'s paradigm , are +in \cite{ww9} were +exponentially +longer than their +tableaux +counterparts +(thus allowing \cite{ww9} +to formalize +a limited use of multiplication). +This was because +% its +\cite{ww9}'s +deductive +methods +were +%%%%% were, inherently, +exponentially +less efficient +at an inherent +level. +Thus + \cite{ww9}'s result, +while +of +%somewhat +%% +%%certainly +%%perhaps +%% +theoretical +%theoretically +interest, +is +%essentially +%%% hhhhh +basically +irrelevant to +the core +engineering environments, +%e.g. +which +constitutes +% are +the + main +% central +focus of + Theorems \ref{ttt1}--\ref{ttt4}. +%% +%% (especially in regards to their +%% particular interpretations +%% given in +%% Remark \ref{rem2}). +%% +\end{remark} + + +%% In other words, Remark \ref{rem-new}'s +%% observation is, once again, connected to +%% the crucial distinction between +%% % an +%% engineering +%% and mathematical viewpoints +%% about +%% the +%% significance of theorem-proving. + + + +%%%bbbb +Remark \ref{rem-new}'s +contrast between + \cite{ww9}'s results and \thx{ttt4} + is, once again, connected to +the distinction between +the +engineering +and mathematical viewpoints +about + the main +intentions +%importance +%significance +of theorem-proving. +% From an engineering perspective, +\thx{ttt4} +is helpful +from an engineering perspective +because most +% of the +pragmatic +%engineering +applications +of integer multiplication +are analogous to either +%% +%% correspond to +%% essentially +%% % what correspond to be +%% the standard computerized word-oriented integer-multiplication +%% primitive +%% %operations +%% or +%% its +%% %their +%% conventional +%% + computerized double-precision +multiplication or its +quadruple-precision or hexagonal +% -precision +% computerized +generalizations. + +\thx{ttt4} +(and its quadruple-precision +and +% hexagonal-precision generalizations) +hexagonal generalizations) +% helpfully +indicate +% such +these +% pragmatic +operations are +% fully +compatible with a formalism recognizing its own +semantic tableaux +%and \txl{1} +consistency. + +\section{A Different Type of Evidence Supporting +Our +Thesis} + +\label{pppp8} + + +Let us recall + Pudl\'{a}k and Solovay +\cite{Pu85,So94} +observed +that +essentially all +Type-S +systems, +containing merely +statement \eq{totdefxs}'s +axiom that successor is a total function, +cannot verify their own consistency under +Hilbert deduction. +(See also related work by +Buss-Ignjatovic \cite{BI95}, +H\'{a}jek and + \v{S}vejdar \cite{Sv7}, +as well as \cite{ww1}'s +Appendix A.) + + +It turns out that +\cite{wwlogos} generalized +these + results to +show that +\ep{totdefxa}'s +Type-A +systems are unable to verify their +own consistency under the +\txl{2} deduction +system +(defined +in +\textsection + \ref{pppp3}). +At the same time, +the IS$_D$ +and IS$^{\#}_D$ +frameworks, +from Sections \ref{pppp4} + and \ref{pppp5}, can verify +their own consistency under +\txl{1} deduction. Our goal in this section will be to +illustrate how the +tight + contrast between these positive and negative +results +is +analogous to the differing growth rates +of +the +sequences +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from + rule \eq{smart-squeeze}. + + + + +During our discussion +$~G_i(v)~$ will denote +the scalar-multiplication +operation that maps +an integer $~v~$ onto +$~ 2^{2^i}\cdot v~$. +Also, $~\Upsilon_i~$ will denote +the statement, in the U-Grounding language, that +declares that + $~G_i~$ is a total function. +Our paper \cite{wwlogos} +proved that $~\Upsilon_i~$ has +a $\Pi_2^*$ encoding. It also implied that $~G_i~$ +satisfied: +\beq +\label{e-Gi} +G_{i+1}(v) ~~~ = ~~~ G_i(~ \, G_i(v)~ \, ) +\enq +It was +noted in \cite{wwlogos} that +this identity +implies one +can construct +an axiom system $ \beta $, comprised of +solely $\Pi_1^*$ sentences, +where +a semantic tableaux proof +can establish +$ \Upsilon_{i+1}$ +from +$ \beta+\Upsilon_i$ +in a constant number of steps. +This implies, in turn, that a \txl{2} proof from +$ \beta $ will require no more that O$(n)$ steps +to prove $ \Upsilon_{n}$ (when it uses the obvious +n-step process to +confirm in chronological order +$~\Upsilon_1 \, , \, \Upsilon_2 \, , \, ... \Upsilon_n ~.~~)$ + + +\smallskip + +These observations are significant because +$G_n(1)=2^{2^n}$. +Thus, +\cite{wwlogos} +% showed +established that +a \txl{2} proof +from $\beta$ can verify +in +only + O$(n)$ steps +that this +quite large + integer exists. + + +\smallskip + +This example is helpful because it illustrates +the difference between the growth speeds +under +\txl{1} and \txl{2} deduction, is analogous +to the +differing +growth +rates +of +the +sequences $ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from rule \eq{smart-squeeze}. +Hence once again, a faster growth-rate +will usher in +the Second Incompleteness Theorem's power +(e.g. see \cite{wwlogos}). + + +This analogy suggests +that the +Second +Incompleteness +Theorem has different implications from the perspectives +of +Utopian and engineering +theories about + the intended +applications of mathematics. Thus, a Utopian +may possibly be + comfortable +with +a +perspective, that contemplates sequences + $ y_0, y_1, y_2, ... $ +with +elements growing in length +at an exponential speed, but many engineers may be +suspicious of such +growths. + + + + + + +A hard-core engineer, +in contrast, might + surmise that the inability of self-justifying +formalisms to be compatible with \txl{2} deduction is +not +as disturbing + as it might +initially +appear to be. +This is +because \txl{2} +differs from + \txl{1} deduction +by producing +exponential growths that are so sharp +that their material realization has no analog +in the everyday mechanical reality that is the +focus of an engineer's +interest. + +Our personal preference is for +a perspective lying +half-way +between +that of an Utopian mathematician and +a hard-nosed engineer. +Its +dualistic +approach +suggests +some form of diluted +partial agreement +with Hilbert's goals +in $**$ (in a context where the broad significance of +the Second Incompleteness Theorem is obviously +undeniable). + + + + + + + + +\section{Outline of \thx{ttt2}'s Proof and +% Exploration of +% Further Discussion +Its Implications} + +\label{new9} +\label{newppp9} + + +The prior two sections of this article +offered an intuitive explanation about why our +self-justifying axiom systems needed omit the +assumption that multiplication is a total function +and +could verify their consistency +% verified their own consistency +only + under +% for +semantic tableaux and +\txl{1} deduction. + + +%%% \txl{1} deduction +%%% (rather than a stronger \txl{2} +%%% rule of inference). + + +We already noted +%that +\thx{ttt2}'s +observation that + IS$_D^{\#}$ +%% proof +%% that +is consistency-preserving +%transformation +has essentially an +analogous +% hhhh +%identical +proof as \cite{ww5}'s +demonstration that +%\K1 + IS$_D$ +is consistency-preserving. +It is not our intention to repeat +such a proof here. + +%%a +%%virtual +%% analog of +%%\cite{ww5}'s proof here. + +Instead, our goal will be to provide a brief overview +of the techniques +%appeared in \cite{ww5}'s proof. This +that \cite{ww5} +had +used. This +overview +will be +% brief but +%%% +%%% will not delve into all \cite{ww5}'s details. +%%% It will, +%%% however, be +%%% +sufficient +for +% so that +a reader +to +% can quickly +appreciate +the +% main +underlying +intuition. + +%the underlying intuition. + + +%%gain an intuition behind the +%%underlying nature +%% of Theorems \ref{ttt1} +%%and \ref{ttt2}. + +\bigskip + +More precisely, +two different types of proofs of \thx{ttt1} +had appeared in our 2002 conference paper \cite{tab2} +and subsequent journal paper \cite{ww5}. The +latter +%result +was more appropriate for an archival +journal because its self-justification result +applied to both semantic tableaux deduction and its +\txl{1} generalization. +The more compressed conference paper +\cite{tab2} proved the analog of \thx{ttt1} +only for tableaux deduction +(using a technique +% thus +that was +%pleasantly +somewhat +shorter +than \cite{ww5}'s more elaborate +result). +Our +% brief +summary of \thx{ttt1}'s +proof, +here, + will focus on the semantic tableaux deduction +methodology so it can apply to either of +\cite{tab2} +or \cite{ww5}'s +methods. +%results. + +%% +%%Our discussion +%%%in this section +%%will focus mostly on +%%\cite{ww5}'s more +%%sophisticated +%% result, but it should +%%be also helpful to readers who +%%wish to +%%examine only +%%\cite{tab2}'s +%%simpler +%%but +%%%% +%%%% and slightly simpler +%%%% presentation of a +%%%% +%%less ambitious result. + +Both of \cite{tab2,ww5} +%% had +% formalisms were +justified \thx{ttt1} +by means of proofs by +contradiction. +Thus if \thx{ttt1} +was false, +they +% both +noted +% then there would exist +%two +a pair of +proofs +%of +for +a $\Pi_1^*$ sentence and its negation +would exist +from +IS$_D(\aaa) $. + + + +Let us call these two proofs $P$ and $Q$. +Then \cite{tab2,ww5} both +showed +(using different constructions) that +one could construct from $(P,Q)$ +two other proofs $(p,q)$ of another +$\Pi_1^*$ sentence and its negation +such that: +\beq +\label{catch} +\mbox{Max}(p,q) ~~ < ~~ +\mbox{Max}(P,Q) +\enq +The inequality in \eq{catch} +is significant because it +will enable our proofs-by-contradiction to establish + the non-existence +of an ordered pair + $(P,Q)$ violating \thx{ttt1}'s assumption. +This is because +%otherwise +\eq{catch} +would +otherwise +violate the Principle of Induction by showing +there exists no such minimal ordered pair + $(P,Q)$ +eschewing \thx{ttt1}'s formalism. + +The +exact +details of these proofs by contradictions are too lengthy +%for us +to fully summarize +% them +here. +For the case where $D$ in \thx{ttt1} +is the semantic tableaux deduction method, they used the fact +that if $(P,Q)$ was the ordered pair with +minimal $ \mbox{Max}(P,Q)$ value violating +\thx{ttt1}'s hypothesis, +then one could +isolate +two +particular root-to-leaf paths in the tableaux +proofs $P$ and $Q$ that would enable us to construct an +additional pair $(p,q)$ +that violated \thx{ttt1} and satisfied +\eq{catch}'s inequality. + +This construction of + $(p,q)$ from $(P,Q)$ +utilized the fact that + \thx{ttt1}'s +axiom system + IS$_D(\alpha) $ recognized addition but not multiplication +as a total function. +Otherwise, \thx{ttt1}'s delicate +proof-by-contradiction would collapse entirely +(as a result of +the exponentially faster growth +properties +of multiplication +that was formalized by the +series + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship). + + +These observations reinforce the theme of +\textsection \ref{pppp7} +about the contrast between the slower growing series + $ x_1, x_2, x_3, ... $ +and its exponentially faster counterpart + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship. +These two series defined the +% respective +growth rates produced by the addition and +multiplication function symbols +% with +as, respectively, +$ \, x_n \, = \, 2^{ n+1} \, \, $ and +$ \, y_n \, = \, 2^{2^n} \, $. +They +thus illustrated +% thus, once again, illustrate +how multiplication's faster growth rate +leads to such a +%% +%% The themes of Sections \ref{ppp7} and +%% \ref{ppp8} was that the latter growth rate +%% represented a +%% +dizzying exponential speed-up, +that +% will +% would +makes +one at least partially sympathetic to a +hard-nosed engineer's skepticism about +its +implications. + +%significance. + +Thus if one were to +preclude such a dizzying growth rate then +a partial justification of a diluted version +of Hilbert's consistency program would arise, +in the context of systems possessing +{\it weak but well defined} knowledges of +their own consistency. +On the other hand, if the conventional assumption +that multiplication is a total function is presumed, +then the traditional interpretation of the +Second Incompleteness Theorem will +% , of course, fully +prevail. + + +%% +%% +%% Hence some partial caveats can be attached to the +%% Second Incompleteness Theorem that carry some +%% credibility from an hard-nosed engineering +%% perspective, while +%% simultaneously +%% they +%% fail to apply to a +%% %at the same time not +%% %be germane to a fully +%% pristine +%% mathematical +%% perspective +%% focused around the +%% Logical Platonism +%% (that G\"{o}del +%% had +%% explicitly explored). +%% %wrote about). + + +% \large + +% \baselineskip = 1.5 \normalbaselineskip + + +\section{Related Reflection Principles} + + +\label{pppxppp10} + +An added point is that there are many +types of +self-justifying systems available, with some +better suited for engineering environments +than others. + + +% bbb +For instance, our initial 1993 paper \cite{ww93} +employed a Group-3 {\it ``I am consistent''} axiom +that was much weaker than +the current specimen. +The distinction was that +\cite{ww93}'s self-consistency declaration +excluded +merely +the existence of a semantic tableaux proof +of $0=1$ from itself, while +the +sentence \eq{group3} is +more elaborate because +it excludes the existence of simultaneous proofs +of a $\Pi_1^*$ theorem and its negation. + + +Ideally, one would like to +develop self-justifying +systems $~S~$ that +% could +can +corroborate the validity +of \eq{brxefl}'s reflection principle for all sentences +$\Phi$. +\beq +\label{brxefl} +\forall p ~~[~ Prf_S^D(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +L\"{o}b's Theorem +establishes, +however, + that all + systems $S$, +containing +Peano Arithmetic's +strength, are able to prove +\eq{brxefl}'s invariant +{\it only in the degenerate case} where they +do +prove $\Phi$ +itself. Also, the Theorem 7.2 from \cite{ww1} +showed +essentially all +axiom systems, +{\it weaker} than Peano Arithmetic, are unable to prove \eq{brxefl} +for all $\Pi_1^*$ sentences $\Phi$ +simultaneously. Thus, +\thx{ttt5} +will be near optimal: + +%% xxxxx + +%%% bbbbb +\begin{theorem} +\label{ttt5} +Let us recall that the difference between \thx{ttt1}'s +axiom system + IS$_D(A)$ +and \thx{ttt3}'s formalism +\ik3 +was that the latter replaced + IS$_D(A)$'s infinite-sized Group-2 axiom schema +with \ik3's compact 1-sentence axiom +\eq{globsim}, so that the latter system could at least verify +\eq{t5kern}'s kernelized statement +for +each $\Pi_1^*$ theorem that $A$ proved. +\beq +\label{t5kern} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +Let likewise $IS^\lambda_\#( \, \beta_{A,i} \, )$ +denote the modification of \cite{ww1}'s $IS^\lambda(A)$ +self-justifying +system +that replaces the latter's Group-2 schema with +\eq{globsim}'s more compact single-sentence axiom declaration +(and +% again +%accordingly +then +has its Group-3 {\rm ``I am consistent''} +axiom statement +reflect this change, +once again). +Then in a context where ``semtab'' is an abbreviation for +semantic tableaux deduction, +the formalism $IS^\lambda_\#( \, \beta_{A,i} \, )$ +will be able to: +\bee +\item +Verify that +semantic tableaux + deduction supports the +following analog of +\eq{brxefl}'s +self-reflection principle +under + $IS^\lambda_\#( \, \beta_{A,i} \, )$ +%%% $S$ +for any +$\Delta_0^*$ and $\Sigma_1^*$ +sentences $\Phi~~$: +\beq +\label{nrxefl} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +\item +Verify +\eq{rdilute}'s more general +{\bf ``root-diluted''} reflection principle +for $IS^\lambda_\#( \, \beta_{A,i} \, )$ +whenever +$\theta$ is $\Sigma \, _{1}^*$ +and + $\Phi$ is a $\Pi_2^*$ sentence of the +form ``$~\forall u_1 ... \forall u_n~~ + \theta(u_1... u_n )~$''. +\beq +\label{rdilute} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Longrightarrow ~ \forall x~ + \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ + \theta(u_1... u_n ) ~] +\enq +\ene +\end{theorem} + + + +%% bbbb +As is suggested by the similarity between the +definitions of $IS^\lambda(A)$ and + $IS^\lambda_\#( \, \beta_{A,i} \, )$, +the proof of \thx{ttt5} is essentially +identical to +\cite{ww1}'s +analysis of $IS^\lambda(A)$. +For the sake of brevity, we will not repeat +the relevant proof here. + + + + +%%% +%%% \begin{theorem} +%%% \label{tts5} +%%% For any +%%% input axiom system $A$, +%%% it is possible to extend the self-justifying +%%% IS$_D(\aaa)$ and \ik3 +%%% systems, +%%% from Theorems \ref{ttt1} and \ref{ttt3}, +%%% so +%%% that the resulting +%%% self-justifying logics +%%% $S$ +%%% can also: +%%% \bee +%%% \item +%%% Verify that \txl{1} deduction supports the +%%% following analog of +%%% \eq{brxefl}'s +%%% self-reflection principle +%%% under $S$ +%%% for any +%%% $\Delta_0^*$ and $\Sigma_1^*$ +%%% sentences $\Phi~~$: +%%% \beq +%%% \label{nrxefl} +%%% \forall p ~~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Rightarrow ~~ \Phi~~] +%%% \enq +%%% \item +%%% Verify +%%% \eq{rdilute}'s more general +%%% {\bf ``root-diluted''} reflection principle +%%% for $~S~$ +%%% whenever +%%% $\theta$ is $\Sigma \, _{1}^*$ +%%% and +%%% $\Phi$ is a $\Pi_2^*$ sentence of the +%%% form ``$~\forall u_1 ... \forall u_n~~ +%%% \theta(u_1... u_n )~$''. +%%% \beq +%%% \label{rdilute} +%%% \forall p ~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Longrightarrow ~ \forall x~ +%%% \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ +%%% \theta(u_1... u_n ) ~] +%%% \enq +%%% \ene +%%% \end{theorem} +%%% + + +%% \thx{ttt5}'s proof +%% will +%% rest +%% upon +%% hybridizing +%% the techniques from +%% \cite{ww1}'s +%% tangibility reflection principle +%% with Theorem +%% \ref{ttt3}'s +%% methodologies, +%% in a +%% natural +%% very +%% manner. +%% %hhhh +%% Its proof is summarized in Appendix D. + + + +% \baselineskip = 1.21 \normalbaselineskip +\parskip 4pt + +Analogous to our +other +results, +\thx{ttt5} +reinforces +% the +our + theme about how +exceptions +to +the Second Incompleteness Theorem +may +appear to +be +{\it quite +minor} +from the perspective of +an Utopian +view of mathematics, +while +being +significant +from an engineering standpoint. +In \thx{ttt5}'s +particular case, +this is +because: +\bed +\item[A. ] +The ability of \thx{ttt5}'s +system +%%% $S$ +to +support +\eq{nrxefl}'s +self-reflection principle +under +tableaux +%\txl{1} +proofs for +any + $\Delta_0^*$ and $\Sigma_1^*$ sentence, +as well as +to +support +\eq{rdilute}'s +root +reflection principle +for $\Pi_2^*$ sentences, +is +clearly +significant. +\item[B. ] +The incompleteness result +of \cite{ww1}'s +Theorem 7.2 +imposes, +however, +sharp limitations upon Item A's +generality +(in that it cannot be extended to +fully all + $\Pi_1^*$ sentences, +{\it in an undiluted sense).} +\ennd +% +% \noindent +Thus, +the tight fit +between + A and B +is +reminiscent of +other +slender +borderlines, +that separated +generalizations and +boundary-case exceptions +for the +Incompleteness Theorem, +explored +earlier. +Once again, +the Second Incompleteness +Theorem +is +seen + as robust, +from an +idealized +Utopian perspective on mathematics, +while +permitting +caveats +from +engineering +styled +perspectives. + +This + dualistic +viewpoint +allows one to +nicely +share +{\it partial (and not full)} +agreement with +Hilbert's +main aspirations in $**$, +$\,$while also + appreciating +the + stunning +achievement +of +the Second Incompleteness Theorem. + + + + + + + + +\section{Concluding Remarks} + +\label{ppppp10} + + +At a purely technical level, +this article has reached beyond +our prior papers in +several +respects, +including +\textsection \ref{pppp5}'s demonstration +that any +initial +system $A$ +can have a kernelized image of its + $\Pi_1^*$ knowledge duplicated by +\ik3's {\bf strictly finite sized} +self-justifying +system, +as well as +%and also by + Section +\ref{pppp6}'s +and +Remark \ref{rem2}'s +quite + pragmatic + L-fold generalizations +of +\thx{ttt3}. + +% this result. + + + + +These +perspectives +%results +help resolve the mystery +that has +enshrouded +the Second Incompleteness Theorem and the statements +$*$ and $**$ +of G\"{o}del and Hilbert. +This is because +we have +{\it meticulously separated} +the goals of a +pristine theoretical study of mathematical +logic +from +those of +a + {\it +finite-sized} +axiomatic +subset of mathematics, +intended + for modeling +mostly +an engineering environment. + + + + + + + + + +There is no question that +G\"{o}del's Second +Theorem +is ideally robust, +relative to a +purely pristine +approach to mathematics. +On the other hand, we suspect +Hilbert +was +{\it half-way +correct} by + speculating +in + $**$ +about humans +possessing +a knowledge +about + their own consistency, +{\it in at least some +% strikingly + weak +and + tender sense,} as +essentially a +% fundamental +prerequisite +for +{\it psychologically + motivating} +their cogitations. +%%%% hhhhhh +Thus in a context where the limitations of axiom systems, +that fail to recognize multiplication as a total function, +are manifestly +obvious, +%% +%% +%% +%% even when +%% such systems +%% duplicate +%% Peano Arithmetic's +%% central +%% $\Pi_1^*$ knowledge, +%% +it is legitimate to +inquire + whether some +future +specialized +21st century computers + might +find +some +{\it partial-albeit-and-not-full} redeeming +value +in formalisms +having +{\it weak-style} + knowledges +of +their + \txl{1} consistency, +as well as possessing a knowledge of +Peano Arithmetic's +$\Pi_1^*$ theorems. + + +%%%% hhhh +%%More precisely, +Sections +\ref{pppp5}-\ref{pppxppp10} +were, +thus, + intended +to provide +a +unified +broad-scale +interpretation of our +diverse + earlier +results +that had appeared +%appearing +in \cite{ww93}-\cite{ww9}. +%from +%\cite{ww93,sp0,ww1,ww2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +In a +context where +the +Incompleteness +Theorem is +%% +%% firmly +%% understood +%% to be +%% + sufficiently +ubiquitous + to preclude Hilbert's +aspirations in $**$ +from +ever +being fully realized, +they show +how +some +{\it fragmentary portion} of Hilbert's +conjectures +can +be corroborated by +{\it judiciously weakened} logics, +using a formalism, that is +{\it much less} than ideally robust, +{\it although +not fully immaterial}. + +%\medskip + +\bigskip + +Such partial evasions of the Second Incompleteness Effect +are certainly not broad-scale, but they +do corroborate a fragment of what G\"{o}del and Hilbert +%referred to +had +sought +as +% ideal +their +desired +goals, +expressed + in the statements $*$ and $**$. + +\newpage + +%\bigskip + + {\bf Acknowledgments:} $~$I thank + Bradley Armour-Garb and Seth Chaiken for +many + useful suggestions about how to +improve the presentation of our results. +%% I also thank the anonymous referees for their comments. +This research was +partially supported +by NSF Grant CCR 0956495. + + +\small + \parskip 2 pt +\baselineskip = 0.86 \normalbaselineskip + + + +\bibliographystyle{abbrv} +\bibliography{b15} + + + + +% eeee end end +% \newpage + + + + + +%\large +% \baselineskip = 1.5 \normalbaselineskip + +% \baselineskip = 1.2 \normalbaselineskip + + \parskip 4 pt + +\ssspace + +\section*{Appendix A: Definition of a +Semantic Tableaux Proof } + +The +definition of a semantic tableaux proof, +provided here, +will be similar to analogous definitions used in +say Fitting's or Smullyan's textbooks + \cite{Fi90,Smul}. + +%% For simplicity +%% during our discourse, +%% a sentence $~\Psi~$ +%% will be called PRENEX$^*$ iff it is written in the +%% form $Q_1 \, x_1~Q_2\, x_2...~Q_n \, x_n~~\theta(x_1,x_2...x_n)~$ +%% where $~\theta(x_1,x_2...x_n)~$ is a $\Sigma_0^-$ formula +%% and $Q_i$ denotes either the symbol $\forall$ or $\exists$. + +During our +discussion, a +% discourse, a +{\bf $\Phi$-Based Candidate Tree} for +an axiom system $\, \alpha \,$ +will be defined +to be a tree structure +whose root corresponds to +the sentence $~\neg \, \Phi~,~$ rewritten in +prenex normal form, and whose all other nodes are +either axioms of $~\alpha~$ or deductions from higher +nodes of the tree +(using the Rules 1-6 defined below). +More precisely, our six rules +(below) + have +``$~ \cal{A} ~ \longmapsto ~ \cal{B} ~$'' denote +that $~ \cal{B} ~$ +is a valid deduction +from $~ \cal{A} ~$. +They +% thus +specify when such a +descendant +node $~ \cal{B} ~$ is allowed to +appear below an ancestor $~ \cal{A} $ +%% +%% is an ancestor of $~ \cal{B} ~$ +%% in the candidate tree $~T~$. In this notation, the deduction +%% rules allowed +%% +in a candidate tree: +\begin{enumerate} + \parskip 1 pt +\item $~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Upsilon +~$ +and +$~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Gamma ~$ . +\item $~ \neg \,\neg \, \Upsilon ~ \longmapsto ~ \Upsilon~$. +Other +% valid Tableaux +rules for +the ``$~ \neg ~$'' symbol include: $~$ +$~\neg ( \Upsilon \vee \Gamma ) ~ \longmapsto ~ \neg \Upsilon +\wedge \neg \Gamma~$, +$ \, \neg ( \Upsilon \Rightarrow \Gamma ) \, \longmapsto \, \Upsilon +\wedge \neg \Gamma \, $, +$ ~~~~\, \neg ( \Upsilon \wedge \Gamma ) \, \longmapsto \, \neg +\Upsilon \vee \neg \Gamma \, $, + $~ \, \neg \, \exists v \, \Upsilon (v) \, \longmapsto \, +\forall v \neg \, \Upsilon (v) \, $ and + $ ~\, \neg \, \forall v \, \Upsilon (v) \, \longmapsto \, +\exists v \, \neg \Upsilon (v)$ +\item A pair of sibling nodes $~ \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof +tree when their ancestor is +$~\Upsilon \, \vee \, \Gamma~$. +\item A pair of sibling nodes $~ \neg \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof + tree when their ancestor is +$~\Upsilon \, \Rightarrow \, \Gamma~$. +\item $~ \exists v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(u) ~$ +where $~u~$ denotes a newly introduced ``Parameter Symbol''. +\item $~ \forall v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(t) ~$ +where $~t~$ denotes a ``Composite Term''. +These terms here are +built out of +combination of + the U-Grounding Function symbols, +the constant symbols representing ``0'' and ``1'' +and the parameter symbols $~u_1,u_2,..,u_n~$, +where each +%symbol +$~u_i~$ {\bf was previously} +introduced by +% instance of +applying +Rule 5 +%applying +to +an ancestor +of the node storing +% the current new deduction + ``$ ~ \, \Upsilon(t) ~$''. +\end{enumerate} +Define a particular leaf-to-root branch in a candidate +tree $~T~$ to be {\bf Closed} iff it contains both some sentence +$~ \Upsilon ~$ and its negation $~ \neg \, \Upsilon ~$. + A {\bf Semantic +Tableaux} proof of $~\Phi~$ will then be defined to be +a candidate tree whose root stores the sentence +$~ \neg \Phi~$ (written in prenex normal +form) and all of whose root-to-leaf branches are +closed. + +% All our theorems in the current article have, + +Our +% discussion in the +current article has, +% will, +for simplicity, +used the preceding definition for a semantic tableaux proof. +Some of our prior articles +%have +used a minor modification +of this definition where there were two additional deduction +rules for ``bounded quantifiers'' of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$''. +It is technically unnecessary to use special rules for +such bounded quantifiers because these two expressions +can be treated as being equivalent to +\eq{bex} and \eq{beu}, respectively. +\beq +\label{bex} +\exists \, v ~~~~ v \leq t~\wedge~ \Upsilon (v) +\enq +\beq +\label{beu} +\forall \, v ~~~~ v \leq t~\Rightarrow~ \Upsilon (v) +\enq +Thus, we technically do not need special Elimination Rules +for bounded quantifiers of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$'' +because statement +\eq{bex} allows the + former to be eliminated +by applying Rules 5 and 1, and likewise +\eq{beu} can +be processed via Rules 6 and 4. + + +%% For simplicity, we will thus rely upon the above 6-part definition +%% of semantic tableaux during the current article. +%% +%% ???? Remove above sentence ??? bbbbbbbbbbbbbbbbb + +\section*{Appendix B: Summary of G\"{o}del Encoding Method} + +Every +%% formalization of either a +generalization and +% a +boundary-case +exception for + the Second Incompleteness +Theorem +does +require + deploying a + G\"{o}del encoding methodology +(to make it well defined). +Such an encoding scheme will be +called +{\bf Optimally Linearly Compressed} if it requires: +\bed +\item[ A. ] +Only +$O(1)$ bits to store +each occurrence +of any +logical symbol +% any of the logical symbols +appearing in a tableaux proof +(except for the objects that +Items 5 and 6 of Appendix A called the $i-$th +``variable'' and ``parameter'' symbols). +\item[ B. ] +No more than +$O(~1~+~$Log$(i) ~)$ bits to +encode + a proof's +$i-$th +``variable'' and ``parameter'' symbols. +(This $O(~1~+~$Log$(i) ~)$ magnitude is unavoidable +because +there is no finite limit to the number of different +variable and parameter objects that may appear in +one of Appendix A's +semantic tableaux proofs.) +\ennd +All our published results about either +generalizations or +boundary-case +exception +for the Second Incompleteness Theorem have used such optimally +compressed encodings. + + +In particular, +our scheme for +encoding +a semantic tableaux proof + will use +the following +24 language symbols: +\begin{enumerate} +\small + \baselineskip = 1.1 \normalbaselineskip +\item The standard connective symbols of +$\wedge ,~ \vee ,~ \neg ,~ \rightarrow ,~ \forall$ +and $~ \exists$. +\item Two +left and two right parenthesis symbols +denoted as: $~(~$ , $~)~$ +$~\underline{\, ( \,}~$ and $~\underline{\, ) \,}.~$ +\item +Two symbols to represent the special constants of ``0'' and ``1''. +\item +Eight function symbols for representing for representing +the eight formal U-grounding functions of Addition, Doubling, Subtraction, +Division, Logarithm, etc. +\item +The relation symbols of +``$~=~$'' and ``$~ \leq ~$''. +\item The symbol $~ \hat{V} ~$ for designating +the presence of a basic variable $~v~$ +in a logical sentence. +\item The symbol $~ \hat{U} ~$ for designating +the presence of a parameter constant $~u~$ +in a logical sentence (which is produced by +Appendix A's +deduction rule 5 for +eliminating +existential quantifiers). +\end{enumerate} +Define a byte to be an unit consisting of six bits. +We +may +%will + think of a proof as +comprising + either + a sequence of +bytes or being an +equivalent +integer +written in base 64. +Each of the 24 symbols (above) will be given +some unique 6-bit code, ranging between 32 and +55. +Our method for representing the presence of +the i-th variable $~v_i$ +will be to encode it is as +a string +comprised +of +$\, \lceil \, log_{\, 32 \,}(i+1) \, \rceil ~+~1~$ bytes, where the +first byte is the ``$\, \hat{V} \,$'' symbol and the remaining bytes +encode +i as a base-32 number. +% with the convention that the lead bit in each +%byte's 6-bit sequence is ``0''. +The same convention will be used to denote the presence of +the i-th parameter $~u_i~$ +except its first byte will be the ``$\, \hat{U} \,$'' symbol. + + + +Our notation has employed {\it two types} of +parenthesis symbols because the first pair of +parenthesis symbols will have their usual meaning in punctuating a +mathematical +sentence, whereas the latter pair of symbols + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ +will {\it separate} the individual sentences in +a Semantic Tableaux proof tree. For example, +consider a tree which stores +1) the sentence $~\psi_1~$ as its root, 2) +the sentences $~\psi_2~$ and $~\psi_3~$ as the root's children, and 3) +$~\psi_4~$ as the child of $~\psi_3.~$ There are several +possible notation conventions for using the + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ symbols +to encode a Semantic Proof tree. +Our encoding +convention will +presume +%be that +$~\psi_i~$ +is an ``ancestor'' of $~\psi_j~$ {\it if and only if} the range beginning +with the +parenthesis to $\psi_i$'s immediate left and continuing +to the matching right parenthesis includes +$~\psi_j.~$ +The example of our 4-node proof tree is thus +encoded as: +\begin{equation} +\label{paren} + ~~\underline{\, ( \,}~~ \psi_1 + ~~\underline{\, ( \,}~~ \psi_2~ + ~\underline{\, ) \,}~ + ~~\underline{\, ( \,}~~ \psi_3 + ~~\underline{\, ( \,}~~ \psi_4~ + ~\underline{\, ) \,}~~ \underline{\, ) \,}~~ \underline{\, ) \,}~ +\end{equation} + + +The preceding paragraph summarized our method for +encoding semantic tableaux proofs. Its +generalization +for +the +encoding of \txl{1} proofs is +straightforward. Thus if + $~p_1,p_2,...p_n~$ +collectively constitute +a list of semantic tableaux proofs +then the + natural concatenation +of their byte strings will be the corresponding + \txl{1} +proof. + +This ``Optimally Linearly Compressed'' encoding scheme +is +%noteworthy +essential +because all the core axiom systems, employed +in this article, are Type-A formalisms, that recognize Addition +but not Multiplication as a total function. If such formalisms +were less than optimally compressed then our main theorems +would lose relevance because the formalization +of +unnecessarily expansive encodings would be awkward +in the context of the slow growth properties of +Type-A formalisms. Thus, +our results carry much greater significance when their +% it is useful that our +encodings +of a proof satisfy the maximal compression properties, +% outlined in the first paragraph of +%that are +defined in +this appendix. + + +%% +%% This byte-styled encoding method is approximately analogous +%% to what Wilkie-Paris \cite{WP87} have called +%% a {\it natural B-adic} encoding or a similar +%% counterpart in the H\'{a}jek-Pudl\'{a}k textbook +%% \cite{HP91}. Such +%% compressed encodings are +%% considered to be more +%% meaningful and efficient than an uncompressed encoding method, +%% using say a Prime Number decomposition scheme \cite{Me97} +%% (because the latter has an unnecessarily long bit-length). +%% All our theorems would also be +%% valid for uncompressed +%% encoding methods. +%% However, they are more meaningful when one uses an +%% efficiently compressed +%% B-adic encoding method. +%% +%% %\newpage +%% + + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + + +\section*{Appendix C: Formal Encoding of +%Statmenent \eq{group3}'s +the +Group-3 Axiom} + +Let us recall +%that +Appendix A +reviewed the definition of +a +semantic tableaux +and \txl{1} + proof, + and Appendix B formalized the +encodings +of such proofs. The goal of this appendix +will be to summarize the methodology +%% \cite{ww5} +%% that was +used to define +Statmenent \eq{group3}'s Group-3 +axiom +in \cite{ww5} . + +%%% Passive Voice change in above sentence much +%%% better because it understates my use of \cite{ww5} . + + +%% {\bf More Detailed Description of the Group-3 Axiom:} $~$ +%% A formal description of +%% IS$_D(A)$'s +%% Group-3 axiom is more complicated than the abbreviated +%% descriptions given either by +%% Sentence$~*~$ or by \ep{group3}'s analog. +%% The +%% main added complication is because +%% the Group-3 axiom declares the consistency of +%% a formal set of axioms that includes ``itself'' +%% (in the words of Sentence$~*~).~$ +%% As was noted in Section 1, the notion of an +%% axiom including +%% ``itself'' when it refers to the consistency +%% of an axiom schema dates back to Kleene's 1938 paper \cite{Kl38}. +%% However, Kleene's abbreviated +%% description is insufficient to establish that +%% \ep{group3} can be encoded precisely as +%% a +%% $\Pi_1^*$ sentence. The next two paragraphs will +%% explain how this can be done. + +Let + UNION($A$) denote the union of IS$_D(A)$'s Group-Zero, +Group-1 and Group-2 axioms. +It will be useful to employ the following notation: +\begin{description} +\item[ i] $\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)$ +will denote a formula designating +that $~p~$ is a proof of the theorem $~t~$ from the axiom +system UNION($A)$ using the deduction method $~D.~$ +\smallskip +\item[ ii] +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$ +will be a formula stating that +$~p~$ is a proof +(using the deduction method $~D~)~$ + of +a theorem $~t~$ +from the union +of the axiom system +UNION(A) with the added axiom +sentence specified by the integer +$\, h \,$. +\smallskip +\item[iii] + $\mbox{Subst} \, ( \, g \, , \, h \, )$ will denote +G\"{o}del's +classic substitution formula --- which yields TRUE when $\, g \,$ +is an encoding of a formula +and $\, h \,$ is an encoding of a sentence +that replaces all occurrence of free variables in $\, g \,$ with +% the formally +an +encoded term +% of +$~\underx{g}~$ +(that designates $g$'s G\"{o}del number.) +\smallskip +\item[ iv] +$\mbox{SubstPrf}_{~UNION(A)}^D~( \, g \, , \, t \, , \, p \,)$ +will denote the natural +hybridizations of the constructs from Items (ii) and (iii) +which yields a Boolean value of TRUE exactly when there +exists some integer $~h~$ +simultaneously +satisfying +{\it both} +the conditions + $\mbox{Subst} \, ( \, g \, , \, h \, )$ and +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$. + +\end{description} +Each of (i)--(iv) +can be encoded as $\Delta_0^*$ formulae. +Thus, Appendices C and D of \cite{ww1} +%% thus, + explained how +the first three of these predicates can receive + $\Delta_0^*$ encodings when one applies +the theory of LinH functions +\cite{HP91,Kr95,Wr78}. +Hence, \eq{encode} illustrates +one possible $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{~UNION(A)}^D \,( g , t , p )$'s +graph. (It is +equivalent to +the statement +$~$``$~\exists ~h~[~\mbox{Subst} ( g , h )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D( h , t , p )\, ] \, \,$''$,~$ + but \eq{encode} is + a $\Delta_0^*$ formula --- {\it unlike} the quoted +expression.) +\begin{equation} +\label{encode} +\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)~~~\vee~~~\exists ~h\leq p +~~[~ \mbox{Subst} \, ( \, g \, , \, h \, )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)~] +\end{equation} + +Let us recall that +$\mbox{Pair}(x,y)$ is a $\Delta_0^*$ sentence +specifying that + $~x~$ +and $~y~$ +are +the encodings of + a $\Pi_1^*$ +and $\Sigma_1^*$ sentence, +that are logical negations of each other. +Using + \eq{encode}'s + $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{UNION(A)}^D( g , t , p )$, +we can now explain +how +statement +\eq{group3}'s Group-3 Axiom can +be formally encoded. +Let +$~\Gamma(g)~$ +denote \ep{encode2}'s formula, +% and let + $~n~$ denote $~\Gamma(g)$'s +G\"{o}del number +and $\underx{n}$ +denote a term encoding $n$ in the U-Grounding language. +$~\,$Then +it will turn out that $~$``$~\Gamma(~ \underx{n}~)~$''$~$ +will be a $\Pi_1^*$ sentence +that is equivalent to + this Group-3 axiom. +\begin{equation} +\label{encode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , y , q ) \,] +\end{equation} +More precisely, \eq{newencode2} formalizes the encoding +of + $~$``$~\Gamma(~ \underx{n}~)~$''. +\begin{equation} +\label{newencode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , y , q ) \,] +\end{equation} +%In particular, +Thus, +if we view +$~~$``$~\mbox{SubstPrf}_{~UNION(A)}^D~( \, + \underx{n} \, , \, t \, , \, p \,)~$'' +in \eq{newencode2} +as our formal method of +encoding the concept that was previously informally +called +``$~\mbox{Prf}~_{\mbox{IS}_D(A)}(t,p)~$'' +by Statement \eq{group3}, +then \eq{newencode2} amounts to +the formal encoding of +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration. + +\bigskip + +{\bf Reminder about +the Significance of + \eq{newencode2}'s Encoding :} +The preceding construction +%shows +had showed +merely that it is possible +to encode +Sentence +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration +in a well-defined manner as a $\Pi_1^*$ +sentence. +It does not answer the more subtle question about whether or not +its +{\it ``I am consistent''} axiom declaration +holds +true + under the Standard model. +%of the natural numbers. +As we have noted before, +most analogs of +%the above sentence +\eq{newencode2} +produce false statements +%fail to hold True +under the Standard Model +because a conventional G\"{o}del-like +diagonalization argument will imply +that +most deduction methods $D$ will produce +%their resulting +axiom systems +$\mbox{IS}_D(A)$ +that are + inconsistent. + +\medskip + +The reason for our +particular +interest in +\eq{newencode2}'s +formal encoding is that +Theorems \ref{ttt1} and \ref{ttt2} +indicate that $\mbox{IS}_D(A)$ +is +%indeed +consistent when $D$ denotes +either the semantic tableaux or \txl{1} +deduction methodologies. Thus +\eq{newencode2}'s +Fixed-Point construction should be seen as a +methodology that has +%limited-but-subtle +limited applications, +but which is also +quite helpful (when it is feasible). + +%quite significant. +\end{document} + diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/o.tex b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/o.tex new file mode 100644 index 0000000..38afa22 --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/o.tex @@ -0,0 +1,4931 @@ +%% suny feb 11 noon removed bib + +% home 2014 Feb 9 9.6 -3pm old title with key words and bibliog added + +%% NEED to do SPELL + +%% godel t0 goedel and spell + +%%% home jan17 8.31 am + +%%% suny jannary11 spell 6pm + +% home 2015 january 10 7 am -minor amendment while listening Sinatra + +% home 2015 january 4 1.1 pm + +% home 2015 january 3 2.3 pm abstract and new-bib; jan4 3,1am reformat + + +%% 2014 home march 29 8.5 pm +%% AFTER PAPER SUBMITTED CHANGED LAST paragraph + +%% 2014 home march 28, 4.1 am suny 10.1 am changed 7 -10 to 6 -10 + +%IMPORTANT REMINDER Long Paper should prove Theorem 3 for D= sem tab + +%\documentclass[12pt]{article} +%\documentclass[10pt]{article} +%\documentclass[11pt]{article} +\documentclass[11pt]{article} + + + + + + + + +\usepackage{amssymb} + + + +\addtolength{\oddsidemargin}{-0.9in} + +\setlength{\textheight}{9.0 in} + + +\setlength{\textwidth}{6.5 in} +\setlength{\textwidth}{6.6 in} +\setlength{\textwidth}{6.4 in} + + + +% \addtolength{\topmargin}{-.5in} +% \addtolength{\topmargin}{-.9in} + \addtolength{\topmargin}{-.6in} + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +\newtheorem{corollary}{Corollary} +\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} + +%%% changed to double numbers + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + +\def\iii{IS$_D(\aaa)$} +\def\I2{IS$^{\#}_D(\beta)$} +\def\ik3{IS$^{\#}_D(\beta_{A,i})$} + +\def\js{IS$_D(A^*)$} +\def\ns{IS$^{\#}_D(\beta^*)$} + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + +%% +%% \title{ +%% %\Large +%% On the +%% %Broader +%% Epistemological +%% Significance of +%% Self-Justifying Axiom Systems +%% from a Semantic Tableaux Perspective} +%% + + + + +% old title is + + \title{ +%\Large +On the Broader +Epistemological +Significance of +Self-Justifying Axiom Systems} +% from the Perspective of Analytic Tableaux} + + + + + + + + + + + + + + + + + + + + + + + + + + +\def\aaa{A} +\def\ccc{Class} + + + + + + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + + + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{\normalsize This research +was partially supported +by the NSF Grant CCR 0956495. +\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + + + + +\date{State University of New York at Albany} + +\maketitle + + \setcounter{page}{0} + \thispagestyle{empty} + + + +\begin{abstract} +\large +\baselineskip = 1.5 \normalbaselineskip +This article will be a continuation of our +research into self-justifying +systems. +It will introduce +several +new theorems +(one of which +will transform our previous infinite-sized +self-verifying +logics +into formalisms +or purely finite size). +It will explain how self-justification +is useful, even when the Incompleteness +Theorem +clearly +does sharply +limit its +scope. +\end{abstract} + + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +{\large +{\bf Keywords and Phrases:} +G\"{o}del's Second Incompleteness Theorem, Hilbert's Second +Open Question, Semantic Tableaux Deduction, + Consistency.} + + +%% +%% \begin{quote} +%% %{\bf $~~~~$ Detailed Abstract (as requested by Call for Papers):} +%% {\bf $~~~~ $ Abstract:} +%% $~$ +%% This article will be a continuation of our research into self-justifying +%% systems. It will introduce several new theorems and then explore their +%% philosophical significance. Its two specific goals will be to: +%% \bed +%% \item[ A. ] +%% Explain how to transform our prior results about infinite-sized +%% self-verifying axiom systems into tighter results about axiom +%% systems of purely finite cardinality. +%% \item[ B. ] +%% Explain how self-justifying axiom systems are useful {\it even when +%% the Second Incompleteness Theorem specifies limits for their reach.} +%% In particular, this second part of our +%% research +%% %results +%% discourse +%% will explain how +%% self-justification is related to open questions and conjectures that +%% G\"{o}del and Hilbert raised in 1926 and 1931. +%% \ennd +%% \end{quote} + +%% +%% Our discussion will have a more philosophical and easier-to-comprehend tone +%% than the more mathematically styled presentation in our prior published +%% papers. +%% % +%% %Our discussion will have a more philosophical and easier-to-comprehend tone +%% %than the more mathematically styled in our prior published papers. +%% %% +%% %% The discussion in this article will have a more philosophical and +%% %% easier-to-comprehend tone than the mostly mathematical discourse in our +%% %% prior published papers. Its +%% %% +%% Its +%% concluding section will offer a new +%% interpretation of the Second Incompleteness Theorem, where G\"{o}del's +%% historic result is taken as being {\it robust and ubiquitous} from a purist +%% theoretical perspective, while +%% % still +%% permitting enough wiggle room to +%% explain how humans gain the {\it psychological motive} to cogitate in +%% applications-oriented engineering-style environments. + + + + +\normalsize + + + + +\baselineskip = 1.5\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\fgf {\baselineskip = 1.3 \normalbaselineskip } + + + +\bbint + + + + +\normalsize +%% \LARGE\baselineskip = 1.1\normalbaselineskip +\baselineskip = 1.2\normalbaselineskip + +%\vspace*{- 3.0 em} + +\newpage + + +\def\J1{IS$_D(~\cdot ~)$} + + + +\def\K1{IS$_D(~\cdot ~)$} +\def\J2{IS$^{\#}_D(~\cdot ~)$} + + +%%% ssssssssssssss +%% TEXT IS HERE + + \parskip 5 pt + +%%%%%\large + \baselineskip = 1.235 \normalbaselineskip + +\large + +\baselineskip = 1.6 \normalbaselineskip +\baselineskip = 2.0 \normalbaselineskip +\normalsize \baselineskip = 1.22 \normalbaselineskip + +\def\ssspace{\normalsize \baselineskip = 1.24 \normalbaselineskip } + +% \def\ssspace{\normalsize \baselineskip = 2.1 \normalbaselineskip } + +\ssspace + + \parskip 5 pt + +\section{Introduction} +\label{pppp1} + + +G\"{o}del's Incompleteness Theorem +has two parts. +Its +first half indicates no decision +procedure can identify +all of +arithmetic's + true statements. +Its + ``Second Incompleteness'' +result + specifies +sufficiently strong +logics +{\it cannot} verify their own consistency. +G\"{o}del +was careful to insert +a + caveat +into +his historic paper +\cite{Go31}, +indicating +a +{\it +diluted} +form +of Hilbert's Consistency Program +might +% have some success: +reach some +levels of +partial + success: +\begin{quote} +$*~$ +% (G\"{o}del \cite{Go31} 1931): +{\it ``It must be +expressly +noted +Proposition XI +(e.g. G\"{o}del's +``Second'' Incompleteness +Result) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and { there might +conceivably be finite proofs} which cannot +be stated in P or in ...''} +\end{quote} +Some +scholars +have interpreted +$\,*\,$ +as, possibly, +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialetica interpretation. +On the other hand, +the Stanford's Encyclopedia's +entry about G\"{o}del +quotes him, +in its + Section 2.2.4, +stating +he was hesitant to +view the +Second Incompleteness Theorem + as +fully +ubiquitous, until +learning +of Turing's +work. +Moreover, +Yourgrau \cite{Yo5} +states +von Neumann +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +Also, it is known + \cite{Da97,Go5,Yo5} +that +G\"{o}del + initially +presumed the +second theorem +was false, before proving his stunning +result. +%hhhh + + + +\smallskip + + + +In any case +several + year after he wrote $*$'s +initial + statement, +G\"{o}del gave a +1933 + lecture \cite{Go33}, +where he +told his audience +that +Hilbert's +initial +1926 objectives, summarized +formally +by + $**$ below, +had + {\it ``unfortunately''} +no +{\it + ``hope of succeeding along''} +its originally intended plans. +\begin{quote} +$**~$ (Hilbert \cite{Hil26} 1926): +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding itself.''} +\end{quote} + +Our research, in both the current article +and +the +prior papers +\cite{ww93}-\cite{ww14} +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}, +was stimulated by the prospect that we find $**$ enticing, +even though the Second Incompleteness +Theorem +{\it unequivocally} + demonstrates that logics +{\it cannot} recognize +their own consistency +{\it in a robust sense.} +Accordingly, we have studied +{\it both} generalizations and boundary-case exceptions +for the Second Incompleteness Theorem +in +\cite{ww93}-\cite{ww14}. +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +The current article will seek to +{\it both} strengthen these prior +results, +in the context of axiom systems +with +{\it + strictly finite cardinalities}, +and to also provide a more intuitive explanation of the +meaning +behind +\cite{ww93}-\cite{ww14}'s +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}'s +results. + +The thesis of this article will be delicate +because there can be no doubt that + the Second Incompleteness +Theorem is +sharply robust, +when viewed +from a + conventional +purist +mathematical + perspective. +On the other hand, we will argue that there are certain facets +of a ``Self-Justifying Logics'', that are tempting +under a hard-nosed +engineering perspective, +contemplating + sharply + {\it curtailed forms} of Hilbert's goals. +These results will be + fragile +{\it but +not +fully +immaterial.} + + +%bbbb +In other words, this +article will offer a somewhat complicated +2-part interpretation of the Second Incompleteness Theorem +where: +\bee +\item +The Second Incompleteness Theorem is seen as +being 100 \% +robust from a mathematical perspective +because of the +% ubiquitous and +widely +encompassing nature of the 1939 +Hilbert-Bernays analysis \cite{HB39} (centering around +their three +well-known +``Derivability Conditions'' \cite{Mend} ). +\item +On the other hand, our discourse +will partially +appreciate Hilbert's reluctance +to fully embrace the Second Incompleteness Theorem, +despite his +joint +work with Bernays \cite{HB39} +generalizing the Second Incompleteness Effect. +(This is +because it is awkward to explain how human beings can +% undeniable +acquire the mental energy +for motivating themselves to cogitate, +without possessing some type of instinctive faith +in their own self-consistency.) +\ene +%It is in the context where +Thus, +the current article + will seek to +separate a {\it ``mathematical''} from +what perhaps should be +{\it ``engineering-style''} + appreciation +of one's +internal consistency. We will seek to define and explore the +latter +%nature of this +%engineering notion in the current article +(with the hope that it will help formalize how future +21st century computers can benefit from its engineering-style +%% notion +perspective, +while still respecting +%%% at the same time +the strict prohibitions formalized by +G\"{o}del's millennial result.) + + +As the reader examines this paper, it should be kept in mind +that +it does +focus on +% the properties of +semantic tableaux +deduction (similar to the earlier +% more abbreviated +discussion that had +appeared in \cite{ww14}'s more abbreviated +conference-style summary of our results). +A second paper, currently under preparation, +will examine Hilbert-style deductive systems (whose +self-justification properties +are partially analogous and partly +quite +different from +% our +tableaux-style systems). +The combination of these two results will formally +define both the potential of self-justifying logics +and the limitations which the Second Incompleteness +Theorem imposes upon them. + + +%% +%% In other words, the theme of this article will be that conventional +%% interpretations of the Second Incompleteness Theorem are +%% certainly 100 \% +%% correct from a mathematical perspective. +%% as foreseen very rigorously +%% as early as 1939 +%% by Hilbert-Bernays \cite{HB39}. +%% This is because +%% no formalism can +%% recognize its own consistency in a very robust +%% strictly +%% %purely +%% mathematical +%% respect. +%% On the other hand, it also +%% seems +%% evident +%% %% appears apparent +%% % undeniable +%% that +%% human beings +%% will +%% %would +%% find it awkward +%% %be unable +%% to acquire the mental energy +%% for motivating themselves to cogitate, +%% without possessing some type of instinctive faith +%% in their own self-consistency. +%% This perhaps should be +%% called an +%% % {\it quasi- +%% {\it engineering=style appreciation} of one's +%% internal consistency. We seek to define and explore the +%% nature of this +%% engineering notion in the current article +%% (with the hope that it will help formalize how future +%% 21st century computers can benefit from this engineering-style +%% notion while, of course, respecting +%% %%% at the same time +%% the strict prohibitions formalized by +%% G\"{o}del's millennial result.) + + + +\section{Background Setting} +\label{pppp2} + + +Let + $( \alpha , d )$ +denote any axiom system +and deduction method satisfying +the +simple {\bf ``Split Rule''} +below$\,$\footnote{Our + ``Split Rule'' +is the trivial requirement + that all the axiom sentences in +$~\alpha~$ are +technically +{\it proper axioms}, and + that +deduction method $~d~$ is +required +to include +{\bf BOTH} a finite number of rules of inference +and +whatever ``logical axioms'' are needed +{\it (if any ? )} +by $\,d$'s methodology. +(This +trivial +Split-Rule +notation convention will +help us to provide a +%%hhhh +precisely formalized statement of our results. + .)}. +This pair +will +be called {\bf ``Self Justifying''} when: +\begin{description} + \item[ i ] one of $ \, \alpha \,$'s theorems +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +second + $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +requirement. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +\begin{quote} +$\bullet~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of the +system $ \alpha $ +with {\it this} +sentence ``SelfRef$(\alpha,d)$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +noted +how +to +encode +rough + analogs of + ``SelfRef$(\alpha,d)$''. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii's +requirement. + + +%% hhhh +This problem arises in +many +contexts besides + G\"{o}del's +paradigm, +where $\alpha$ was an extension of Peano Arithmetic +(see +\cite{Ad2,AZ1,BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Ko6,KT74,Lo55,Pa71,Pa72,Pu85,Pu96,Ro67,Sa12,So94,Sv7,Vi5,WP87,ww2,wwlogos,ww7}). +Such results formalize +paradigms where +self-justification is infeasible, +due to diagonalization issues. +(It should, +perhaps, + be added that among this +lengthy list of articles, +it was especially +\cite{Ad2,Bu86,Go31,Lo55,Pu85,So94,WP87}'s +incompleteness results that +influenced our +work in +\cite{ww93}-\cite{ww14}.) +% in \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}.) +In any case, the main point is that +most +logicians +have +hesitated +to + employ +an +analog of a + SelfRef$(\alpha,d)$ + axiom +because + $ \alpha^d = \alpha+$SelfRef$(\alpha,d) $ +is +typically +inconsistent. + + + + + + + + + +Our research +in \cite{ww93,ww1,ww5,ww6,wwapal} +focused on +paradigms +where +self-justification is feasible. +It +involved weakening +the properties +a +logic +can prove +about +addition and/or +multiplication +(to avoid +potential +difficulties). +To be more precise, let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote +3-way predicates +specifying +$x+y=z$ and +$x*y=z$. +Then a +logic +will be said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} iff it +includes +sentences +1-3 as axioms. + +\vspace*{- 0.4 em} +{\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + +\vspace*{- 1.2 em} + +A +logic +$\alpha$ +will be called +{\bf Type-M} iff it contains +\ref{totdefxs}-\ref{totdefxm} +as axioms, +{\bf $~$Type-A} iff it contains only +\eq{totdefxs} and \eq{totdefxa} as axioms, +{\bf $~$Type-S} iff it contains +only \eq{totdefxs} as an + axiom, and +{\bf $\,$Type-NS$\,$} iff it contains +none of these axioms. +The relationship of these constructs to +self-justification +is explained by +items (a) and (b): +\bed +\item[ a. ] +The existence of +Type-A systems that can recognize +their own +consistency under semantic tableaux deduction, +while proving +analogs of +all +Peano Arithmetic's + $\Pi_1$ theorems (in a slightly different language), +were +%%hhhh +demonstrated in +\cite{tab2,ww5}. +Also, \cite{ww1,wwapal} noted that +some +specialized +forms +of +Type-NS systems +can +likewise +recognize their +own Hilbert consistency. + + + +\item[ b. ] +The above +evasions of the Second Incompleteness +Theorem are known to be near-maximal in a mathematical sense. +This is because +the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} implied no +natural +Type-S system can recognize its Hilbert consistency, +and Willard +subsequently + \cite{ww2,ww7,ww9} +hybridized their formalisms with some techniques of +Adamowicz-Zbierski +\cite{Ad2,AZ1} +to establish that most +Type-M systems cannot recognize their +own semantic +tableaux consistency. +\ennd + + + +Other +fascinating +efforts to +evade the Second Incompleteness Theorem +have used +the Kreisel-Takeuti ``CFA'' +system \cite{KT74} +or the +the {\it interpretational framework} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to our approach +because they +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Instead, CFA uses the +special +properties of ``second order'' generalizations of Gentzen's +{\it cut-free} +Sequent Calculus, +and +the +interpretational approach +formalizes how some systems +recognize their + Herbrand consistency +on localized sets of integers, +which +unbeknownst to +themselves, +includes all +integers. +(These alternate results are interesting but +unrelated to our approach.) + + + + + + + +\section{Defining Notation and Earlier Results} +\label{pppp3} + +\label{sect3} + + + +A function $F $ +will be called {\bf Non-Growth} +iff +$ F(a_1...a_j) +\leq Maximum(a_1...a_j)$ +holds. +Six examples of +non-growth functions are +\bee +\small +\parskip 0pt +%hhhh +\item +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +\item +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +\item +$Maximum(x,y),$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +\item +$\,Root(x,y) \, = \, \lfloor \, x^{1/y} \, \rfloor~$. and +\item$Count(x,j)$ designating the number of ``1'' bits +among $ x$'s rightmost $ j $ bits. +\ene +The term +{\bf U-Grounding Function} +referred in \cite{ww5} to +a set of +primitives, +which included the +preceding +functions plus the {\it growth operations} of addition and +{\it Double$(x)=x+x$}. +Our language $L^*$ was +built +out of these +symbols, +plus the primitives of +``0'', ``1'', + ``$ \, = \, $'' +and ``$ \, \leq \, $''. + + + + +In a context where $~\, t \, ~$ is any term in \cite{ww5}'s +language $L^*$, +$\,$the quantifiers in +%% the wffs +$~ \forall ~ v \leq t~~ \Psi (v)~$ and $~ \exists ~ v \leq t~~ \Psi (v)$ +were called {\it bounded +quantifiers}. +Any formula in + $L^*$, +all of whose +quantifiers are bounded, was called +a $\Delta_0^*$ formula. +The $~\Pi_n^{* }~$ and $~\Sigma_n^{* }~$ formulae +were +then defined by the +usual +rules that: +\bee +\item +Every +$\Delta_0^*$ formula is considered to +be +``$~\Pi_0^{* }~$'' and +also + ``$~\Sigma_0^{* }~$''. +\item +A +wff +is called + $ \,\Pi_n^{* } \,$ +when it is encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ with +$\Phi$ being $\Sigma_{n-1}^{* }$ +\item +Also, +a wff +is called + $\Sigma_n^*$ +when it is encoded as +$\exists v_1 ..\exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{* }$. +\ene + +%%bbb +Our articles \cite{ww93,tab2,ww5} used the symbol $~D~$ to denote +a deduction method. +They focused mostly around the +semantic tableaux deductive methodology, +whose formal definition can be found in the textbooks +by Fitting and Smullyan +\cite{Fi90,Smul} and whose +definition is also reviewed +by Appendix A of the current article. + +%%bbb +Our articles \cite{wwlogos,ww5} +also considered an improved faster deductive technology, + called +{\bf Tab-k + deduction}, that +consists of a +speeded-up version of a +tableaux, +which +permits a +{\it limited analog} of +Gentzen-style deductive +cuts +for $\Pi_k^*$ and $\Sigma_k^*$ formulae. +Thus, if + $~H~$ +denotes a sequence of ordered pairs +$~(t_1,p_1),~(t_2,p_2),~...~(t_n,p_n),~$ +where $~p_i~$ is a Semantic Tableaux proof of the theorem $~t_i,~$ +then $H$ +has been + called a +{\bf ``Tab-k +Proof''} +of a theorem $~T~$ +from $\alpha$'s axioms + iff $~T=t_n~$ +and also: +\begin{enumerate} +\item +Each of the ``intermediately derived theorems'' +$~t_1,t_2, \, ... \, , t_{n-1}~$ +have a complexity no greater than that of +either a $\Pi_k^*$ or $\Sigma_k^*$ sentence. +\item +Each +proper axiom in $ p_i$'s +proof +comes +either +from $\alpha$ or is + one of $ t_1,t_2, \, ... \, , t_{i-1} $. +\end{enumerate} +Thus, a +Tab-k proof is essentially a generalization of a classic +semantic tableaux proof that essentially owns the equivalent of +an +extra specialized modus ponens rule for + $\Pi_k^*$ and $\Sigma_k^*$ sentences. + +Let +us say +an axiom system $\alpha$ +has a {\bf Level-J Understanding} +of its own +consistency +under a deduction method $D$ +iff $\alpha$ can prove that there exists no proofs +using +its axioms and $D$'s deduction +of both a +$\Pi_J^*$ theorem and its negation. +In this notation, items A and B summarize +\cite{sp0,ww2,wwlogos,ww5,ww7}'s +main +results: +\bed +\item[ A. ] + For +any +axiom system $A$ using $L^*\,$'s + U-Grounding language, +\cite{ww5} +showed its +IS$_D(A)$ formalism +could prove +all $A$'s $\Pi_1^*$ theorems and simultaneously +verify its +Level-1 +consistency under +\txl{1} deduction. + +\smallskip + +\item[ B. ] +Two negative results, tightly complementing +item A's +positive result, +were exhibited +in +\cite{sp0,ww2,wwlogos,ww7}. The first +was that \cite{sp0,ww2,ww7} showed +most +systems +are +unable to verify their +Level-0 consistency under +semantic tableaux +deduction, + when they included +statement +\eq{totdefxm}'s ``Type-M'' +axiom that multiplication +is a total function. Moreover, \cite{wwlogos} +offered an alternate +form +of this + incompleteness +result, +showing statement +\eq{totdefxa}'s +{\it +far weaker} +Type-A +systems +cannot +verify +their Level-0 consistency under +\txl{2} deduction. +\ennd + + + + +The contrast between these +positive and negative results +has + led to our conjecture that +automated +theorem provers +are likely + to +eventually +achieve +a fragmentary part of the ambitions +that were +suggested by Hilbert +in +$**\,$. +This is because +the question of whether a +formalism can support an +{\it idealized Utopian} +conception of +its own consistency is {\it +different} from +exploring the degrees to which +theorem-provers +can possess +a {\it fragmentary +knowledge} of +their own +consistency. +The +Incompleteness Theorem +has demonstrated +an Utopian idealized form of self-justification +is unobtainable, +but our research has found some +diluted +cousins +of this construct are +feasible +%%% hhhh +and warrant examination. + + +%%%bbbbb +In summary, +%as a reader examines the remainder of this article, +it should be kept in mind, +during the remainder of this article, +that the Hilbert-Bernays Derivability Conditions +\cite{HP91,HB39,Mend} +impose severe limits upon any evasion of +the Second Incompleteness Theorem. +% that are inexorable. +On the other hand, +it appears that a + human's + faith in his own consistency +is an essential +prequisite to gain the needed + psychological +motivation for +% cogitating. +stimulating cogitation? +% motivate to cogitate. +%cogitation, is also a non-trivial agent. +(This is why we suspect Hilbert was never willing +to concede that all facets of his consistency program +%would be +were +hopeless.) +A broad theme of this paper will, +% thus +thus, +be that it +is helpful to distinguish between the goals of +a +theoretical-oriented study of arithmetic from +that of +a more engineering-styled approach, +since the +Second Incompleteness Theorem is a perfect result +from the first perspective while it permits +for +% some +well-defined +limited-scale part-way exceptions from +the second vantage point. + +%% Above sentence replaces below + + +%% Our interest in +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% was +%% % stimulated by such +%% raised by these +%% considerations. + + +%% It is for this reason that +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% from the preceding two paragraphs, +%% warrant investigation. +%% +%are so important. + + +%% Their +%% two subtle contrasts will be our +%% main +%% focus +%% % of our attention +%% %in the remainder of this article. +%% in the rest of this article. +%% + + +\section{The IS$_D(A)$ Axiom System} +\label{pppp4} + + +\label{sect4} + +In a context where $~A~$ denotes any axiom +system using + $L^*\,$'s +U-Grounding language, IS$_D(A)$ +was defined +in \cite{ww5} +to be an axiomatic +formalism capable of recognizing all of +$A$'s $\Pi_1^*$ theorems and +corroborating +its own Level-1 consistency under $D$'s deductive method. +It +consisted of the +following four +groups of axioms: +\begin{description} +\item[Group-Zero:] +Two of the Group-zero axioms +did +% will +define +the +constant-symbols, +$\bar{c}_0$ +and $\bar{c}_1$, +designating the integers of 0 and 1. +The +Group-zero axioms +will +also define the +growth functions of addition and +$~Double(x) \, = \, x+x.~$ +The +net effect of these +axioms will be to set up a machinery to +define +any +integer +$~n \geq 2~$ +using fewer than +$3 \cdot \lceil \, $Log$~n~ \rceil \,$ +logic symbols. + + + + + +\item[Group-1:] +This axiom group +did +% will + consist of a +finite set of $\Pi_1^{*} $ sentences, denoted as $~F~$, which +can prove any $\Delta_0^*$ sentence that +holds true under the standard model of the natural numbers. +(Any finite set of +$\Pi_1^{*} $ sentences $~F~$ +with this property +may be used to define Group-1, +as \cite{ww5} noted.) + + + +\item[Group-2:] +Let $\ulxyz \Phi \urxyz$ denote +$\Phi$'s G\"{o}del Number, and +HilbPrf$_A(\ulxyz \Phi \urxyz,p)$ denote a +$\Delta_0^{*} $ formula indicating +$~p~$ is a +Hilbert-styled proof of +theorem $~\Phi~$ from +axiom system $A$. +For each $\Pi_1^{*} $ sentence $\Phi$, the +Group-2 schema +of \cite{ww5} +did +% will + contain an axiom of +form \eq{group2}. +(Thus IS$_D(A)$ can trivially prove + all $A$'s +$\Pi_1^{*} $ theorems.) +\begin{equation} +\forall ~p~~~\{~ \mbox{HilbPrf$_A(\ulxyz \Phi \urxyz,p)$} + ~~ +\Rightarrow ~~ \Phi~~\} +\label{group2} +\end{equation} +\item[Group-3:] +This final part of the IS$_D(\aaa)$ +essentially represented +% will be +a +self-referencing +$\Pi_1^*$ +axiom, +indicating +IS$_D(\aaa)$ meets +\textsection 3's criteria of being +``Level-1 consistent'' +under deductive method $D$. +It +amounts, +%is, +thus, +to the following declaration: +\begin{quote} +\# $~${\it No two +proofs exist +for +a $\Pi_1^{*} $ sentence +and its negation, when +$D$'s deductive method is applied to an axiom system, +consisting of +the {\it union} +of +Groups 0, 1 and 2 with {\bf $\,$this sentence$\,$} +(looking at itself).} +\end{quote} + +One encoding of \#, +$\,$as a self-referencing +$\Pi_1^{*} $ +axiom, +appears + in +\cite{ww5}. +%% hhhh0000000000 +Thus, +the +below +sentence +\eq{group3} +represents +\cite{ww5}'s +$\Pi_1^{*}\, $ styled +encoding for$~$ + \# +in a context where: +\bed +\item[ i. ] +$~~\mbox{Prf} \, _{\mbox{IS}_D(A)}(a,b) \, $ is +a + $\Delta_0^{*} $ formula +indicating +that +$ \, b \, $ is a proof + of a theorem $\, a\,$ +under + $\mbox{IS}_D(A)$'s axiom system +and $D$'s deduction method, +$\,~$and +\item[ ii. ] +$~~$Pair$(x,y)$ is a $\Delta_0^{*} $ formula +indicating +that $ \, x \, $ is a + $\Pi_1^{*} $ sentence +and +% that + $ \, y \, $ +represents +$ \, x \,$'s negation. +\end{description} +%% A summary of the formal techniques that +%% \cite{ww5} used to encode +%% sentence +%% \eq{group3} is provided in Appendix B. +\end{description} +\begin{equation} +\forall ~x~\forall ~y~\forall ~p~\forall ~q~~~~ \neg ~~ +[~~ \mbox{Pair}(x,y)~ \wedge ~ +~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(x,p)~ +\wedge ~ ~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(y,q)~ ] +\label{group3} +\end{equation} + +\begin{remark} \label{remc} +\rm +A +fully formal +summary of the techniques that +\cite{ww5} used to encode +%the +sentence +\eq{group3} is provided by +the combination of Appendices B and C. +The former appendix summarizes our +methods for generating the G\"{o}del numbers +of semantic tableaux and \txl{k} proofs +in an optimally compressed manner. +The latter appendix explores how +sentence +\eq{group3}'s self-referencing statement is precisely encoded. +\end{remark} + +{\bf Notation.} An operation $~I(~\bullet~)~$ that maps +an initial axiom system $\,\aaa \,$ onto an alternate +system $\,I(\aaa)\, $ will be called {\bf Consistency Preserving} +iff $\,I(\aaa)\, $ is consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers. In this +context, +\cite{ww5} demonstrated: + + +\begin{theorem} +\label{ttt1} +\label{thold} +Suppose +the symbol $D$ denotes either semantic +tableaux deduction or its \txl{1} generalization. +Then the IS$_D(~\bullet~)~$ mapping operation is consistency preserving +(e.g. +IS$_D(\aaa) $ +will be consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers). +\end{theorem} + +We emphasize +the most difficult part of \cite{ww5}'s +result was +neither the definition of its +IS$_D(\aaa) $'s axiom system nor the +$\Pi_1^*$ fixed-point + encoding of \eq{group3}'s Group-3 axiom. +Instead, +the key challenge + was the +confirming +of \thx{thold}'s +``Consistency Preservation'' +property. + + +The +confirming of +this +property +is +subtle +because its invariant breaks down when +$~D~$ is a deduction method only slightly stronger than +either semantic tableaux or \txl{1} deduction. +Thus, Pudl\'{a}k's and Solovay's +work \cite{Pu85,So94} +implies \thx{thold}'s analog fails when $D$ represents +Hilbert deduction, and \cite{wwlogos} showed its generalization + fails +even when $D$ represents \txl{2} deduction. + + + + + + + + +\section{A Finitized Generalization of \thx{thold}'s Methodology} +\label{pppp5} + + +\label{sect5} + +%%%mmmm +One +difficulty with IS$_D(\aaa)$ +was +is +that it +employed +an infinite number of different +incarnations of +sentence \eq{group2} +in its Group-2 scheme (since it contained one incarnation +of this sentence for each $\Pi_1^*$ sentence $\Phi$ in +$L^*\,$'s language). Such a Group-2 schema is awkward because +it simulates $A$'s +$\Pi_1^*$ +knowledge almost via a brute-force +enumeration. + + +Our Definition \ref{dd-is2} and Theorems +\ref{ttt2} and \ref{ttt3} will show how +to +mostly +overcome this problem by +compressing the infinite number +of +instances of sentence \eq{group2} in +IS$_D(\aaa)$'s Group-2 schema into +a purely finite structure. + +\smallskip + +\begin{definition} +\label{dd-is2} +\rm +Let $~\beta~$ denote any +finite set of +axioms that have + $\Pi_1^*$ encodings. +Then +\I2 +will denote an axiom system, +similar to IS$_D(\aaa)$, except +its Group-2 +scheme will employ $~\beta\,$'s set of axioms, +instead of using an infinite number of applications +of +statement \eq{group2}'s scheme. +(Thus, +the +{\it ``I am consistent''} statement +in \I2's Group-3 +axiom will be the same as before, except that +the {\it ``I am''} +fragment of its +self-referencing +statement +will reflect +these + changes in Group-2 in the obvious manner.) +\end{definition} + + + +\begin{theorem} +\label{ttt2} +Let + $D$ again denote either +semantic +tableaux +or \txl{1} deduction, +and $\beta$ again denote a set of +$\Pi_1^*$ axioms. +Then +\I2 +will be consistent whenever all +$\beta$'s axioms hold +true under the standard model. +(In other words, + \I2 +will satisfy an analog of \thx{ttt1}'s +consistency preservation property for IS$_D(\aaa) $.) +\end{theorem} + +%%bbbb +\thx{ttt2}'s +proof +is almost identical to +\cite{ww5}'s proof of \thx{ttt1}. +Its proof is too lengthy to repeat here. +Instead \textsection \ref{newppp9} +will +briefly summarize its +%% +%% provide +%% a +%% brief +%% %detailed +%% % an intuitive +%% summary +%% of the +%% formal +%% % germane +%% +proof. +This +abbreviated discussion +%% discourse +should be sufficient to explain +the gist behind the +proof's core +%needed +formalism, +%proofs, +without delving into +\cite{ww5}'s +full +%%%%% too many +%full +% formal +details. + +%%bbbb +Our next definition will enable us to formalize +the main application of +\thx{ttt2} that will be considered +here. +%during the present article. +It will essentially explain how +{\bf finite-sized} + self-justifying + logics + can provide an + {\bf infinite amount } + of + ``kernelized'' + $\Pi_1^*$ +styled +information. + + + +%%% It will. +%%% not be +%%% repeated in this extended abstract. +%%% Instead, +%%% this section +%%% will apply +%%% \thx{ttt2} +%%% to +%%% show how +%%% {\bf finite-sized} +%%% self-justifying +%%% logics +%%% can provide an +%%% {\bf infinite amount } +%%% of +%%% ``kernelized'' +%%% $\Pi_1^*$ information. +%%% + +\begin{definition} +\label{dkern} +\rm +Let +Test$_i(t,x)$ +denote any $\Delta_0^*$ formula, +and $~\ulcorner \Psi \urcorner ~$ denote +$\, \Psi\,$'s G\"{o}del number. Then +Test$_i(t,x)$ will be called a {\bf Kernelized Formula} +iff Peano Arithmetic can prove every $\Pi_1^*$ sentence +$~\Psi~$ satisfies \eq{testker}'s +identity: +\beq +\label{testker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +There are +infinitely +many + $\Delta_0^*$ predicates +Test$_1(t,x)$, Test$_2(t,x)$, Test$_3(t,x)$ ... +satisfying this kernelized condition +(one of which is illustrated by Example \ref{eex1}). +An enumerated list of all +the available kernels +is +called a {\bf Kernel-List}. +\end{definition} + +\begin{example} \label{eex1} \rm +The set of +true $\Sigma_1^*$ sentences is +r.e. +This +implies +there +exists a $\Delta_0^*$ formula, +called say Probe$(g,x)$, +such +that $~g~$ +is +the G\"{o}del number of +a $\Sigma_1^*$ statement that holds true in the Standard +Model +if and only if +%iff +\eq{e-probe} is true: +\beq +\label{e-probe} +\exists ~x~~~ \mbox{Probe}(g,x)~\wedge~ x \geq g +\enq +Now, let Pair$(t,g)$ denote a $\Delta_0^*$ formula +that specifies $~t~$ is the G\"{o}del number of +a $\Pi_1^*$ statement and + $~g~$ is +the $\Sigma_1^*$ formula which is its negation. +Then our notation implies +that + $~t~$ +is +a true + $\Pi_1^*$ statement +if and only if \eq{e-2probe} holds true: +\beq +\label{e-2probe} +\forall ~x~~~ +\neg~[~\exists ~g ~\leq~x~~~~~ \mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)~~] +\enq +Thus if +Test$_0(t,x)$ +denotes the $\Delta_0^*$ formula of +$~ \neg~[~\exists ~g \, \leq \, x~~ +\mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)]$, +it +is one example of what +Definition \ref{dkern} +would +call a +``Kernelized Formula''. +\end{example} + +\begin{definition} +\label{def3} +\rm +Let us recall +Definition \ref{dkern} +defined +{\bf Kernel-List} to be an enumeration of +all the +kernelized formulae +Test$_1(t,x)$, + Test$_2(t,x)$, Test$_3(t,x)...~$. +Assuming +Test$_i(t,x)$ is the $i-$th element in this +list +and +$\Psi$ is an arbitrary $\Pi_1^*$ sentence, +the +{\bf i-th Kernel Image} +of $\, \Psi \,$ + will be +defined as +the +following $\Pi_1^*$ +sentence: +\beq +\label{imagker} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +\end{definition} + +\begin{example} \label{eex2} \rm +The Definitions +\ref{dkern} +and \ref{def3} suggest that there is a + subtle relationship +between a sentence $~\Psi~$ and its $i-$th kernel image. +This is because +Definition \ref{dkern} +indicates that Peano Arithmetic can prove the invariant +\eq{testker}, indicating that + $~\Psi~$ +is equivalent to + its $i-$th kernel image. +However, a weak axiom system +can be plausibly uncertain about +whether this +equivalence +does formally hold. +This invariant is duplicated below: +\beq +\label{againtestker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq + +% equivalence holds. + +%mm% +Thus if a weak axiom system proves statement +\eq{imagker} (rather than $~\Psi~$), +it +%% may +will + not be able to equate these +two +results +(unless it is able to verify +\eq{againtestker}'s identity). +This problem will apply to \thx{ttt3}'s +formalism. +However, \thx{ttt3} will +% be +still +remain + of much interest +because \textsection \ref{pppp6} will +illustrate a +methodology that +can overcome +many of \thx{ttt3}'s limitations. +\end{example} + + + + + + + +\begin{theorem} +\label{ttt3} +Let $~A~$ denote any +system, +whose + axioms hold +true +in arithmetic's standard model, +and $~i~$ denote the index +of any of +Definition \ref{dkern}'s +kernelized formulae + Test$_i(t,x)$. +Then it is possible to construct a +finite-sized +collection of $\Pi_1^*$ sentences, called say + $\beta_{A,i}$, +where +\ik3 +satisfies the following invariant: +\begin{quote} +If $~\Psi~$ is one of the +$\Pi_1^*$ theorems of + $~A~$ +then \ik3 can prove +\eq{imagker}'s +statement + (e.g. it will prove the +``the $\, i-$th kernelized image'' +of +$~\Psi\,$). +\end{quote} +\end{theorem} + +\newpage + +\noindent +{\bf Proof Sketch:} +Our justification of +\thx{ttt3} will +use the following notation: +\bee +\item +Check$(t)$ will denote a $\Delta_0^*$ formula +that +produces a Boolean value of ``True'' when +$t$ represents the G\"{o}del +number of a $\Pi_1^*$ sentence. +\item + $~\mbox{HilbPrf}_A \,( t , q )~$ +will denote + a $\Delta_0^*$ formula that indicates +$~q~$ is a Hilbert-style proof of the theorem +$~t~$ from axiom system $~A~$. +\item +For any kernelized +Test$_i(t,x)$ +formula, GlobSim$_i$ +will +denote \eq{globsim}'s $\Pi_1^*$ sentence. +(It will be called $A$'s $i-$th +{\bf ``Global Simulation Sentence''}.) +\ene +\beq +\label{globsim} +\forall ~t~~ +\forall ~q~~ +\forall ~x~~\{~~ +[~~\mbox{HilbPrf}_A \,( t , q )~~ \wedge ~~ +\mbox{Check}(t)~~]~~~ +\Longrightarrow ~~~ +\mbox{Test}_i(t,x)~~~ \} +\enq + +%%mm +In this notation, +%%%the requirements of +\thx{ttt3} +shall +%will +be satisfied by any +version of the axiom system \I2, whose Group-2 schema $~\beta~$ +is a finite sized +consistent set of $\Pi_1^*$ sentences +that has +\eq{globsim} +as an axiom. +(This includes +the minimal sized such system, +% which we will +denoted as $~\beta_{A,i}~$, +that has only \eq{globsim} as an axiom.) +This is because +%Thus, +if +$\Psi$ is any +$\Pi_1^*$ theorem of $A$ whose proof +is denoted as $~\bar{p}~$, then both the +$\Delta_0^*$ predicates of +$\mbox{HilbPrf}_A \,( \ulxyz \Psi \urxyz , \bar{p} )$ and +$\mbox{Check}( \ulxyz \Psi \urxyz )$ +will hold true. +%are true. +Moreover, +IS$^{\#}_D$'s +%%%%%%%%%%%%%% \I2's +Group-1 axiom subgroup was defined so that +it can automatically prove all + $\Delta_0^*$ sentences that are true. +Hence, +%Thus, + \ik3 will + prove these two statements and +then automatically +%hence +corroborate (via axiom +\eq{globsim}) the further statement +of: +\beq +\label{interm} +\forall ~x~~ +\mbox{Test}_{\, i \,}(~ \ulxyz \Psi \urxyz ~,~x~ ) +\enq +%Hence +Thus +for each of the infinite number of $\Pi_1^*$ +theorems that $~A~$ proves, the above defined +formalism will prove a matching statement +that corresponds to +its +%% the + $\, i-$th kernelized image. $~~\Box$ + + +%% of +%% each +%% such proven theorem. +%% $~~\Box$ + +\section{ L-Fold Generalizations of \thx{ttt3} } +\label{pppp6} + + + + +\thx{ttt3} +is of +interest +because every axiom system $\,A\,$ +will have +its formalism +\ik3 +prove the + $\, i-$th kernelized image of every + $\Pi_1^*$ theorem that $A$ proves. +This fact is helpful +because +\eq{testker}'s invariance +holds for all $\Pi_1^*$ sentences. +Moreover, our +``U-Grounded'' +$\Pi_1^*$ sentences +capture all +Conventional Arithmetic's +{\it crucial} +$\Pi_1$ +information +because they can +view +multiplication as a 3-way + $\Delta_0^*$ +predicate +Mult$(x,y,z)$ +via +\eq{neweq1}'s +encoding of this predicate. +\begin{equation} +\label{neweq1} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x} \, 100~$? +%hhhh +Is the use of +such a sequence +%use, +for corroborating the Second Incompleteness +Effect +% , thus essentially, +%thereby +resting +% , essentially, +%, at least partially, +upon an +% an inherently +almost +artificial construct +(with + an +inherently +dizzying growth rate) ? +\end{quote} + + + +We will not attempt to derive a Yes-or-No answer to Question $***$ +because +we think that such a direct +response +%%% answer +is too simplistic. +Our point is that +both a positive and negative reply to + $***$ +are useful in different respects. +%% +%% it +%% is one of those epistemological questions that can be +%% debated +%% endlessly. +%% Our point is that $***$ +%% probably does not require a definitive +%% positive or negative answer because both perspectives +%% are useful. +%% +%% Thus, +%% the theoretical existence of a sequence +This because +the theoretical existence of a sequence +integers +of $ y_0, y_1, y_2, ... $, whose binary +encodings are doubling in length, is tempting +from the perspective of +an Utopian view of mathematics, while +awkward from an engineering styled +perspective. +We therefore ask: {\it ``Why not be tolerant +of both perspectives? ''} + +One virtue of +this tolerance is +it +ushers in +a greater understanding +for the statements $*$ and $**$ that G\"{o}del and +Hilbert made during +1926 and 1931. +This +is +because the +Incompleteness Theorem +demonstrates +no +formalism can display +an understanding of its own consistency in an +idealized + Utopian +sense. On the other hand, +\textsection 6 +suggested +these +two +remarks by G\"{o}del and Hilbert + might receive +more sympathetic interpretations, +if one +sought to explore +such questions from a less ambitious +almost engineering-style perspective. + + + + +Our +main thesis is +supported by a +theorem +from \cite{ww6}. It indicated that +tableaux +variations of self-justifying systems have no difficulty +in recognizing that an infinitized generalization of +a computer's +floating point multiplication (with rounding) is a total +function. The latter +differs from integer-multiplication, +by not having its output become double the length of +its input when a number is multiplied by itself. +Thus, the +intuitive +reason +\cite{ww6}'s + multiplication-with-rounding operation +is compatible with self-justification is +because it + avoids the +inexorable +exponential +growth under +rule \eq{smart-squeeze}'s sequence + $ y_0, y_1, y_2 .. ~ $. + +\bigskip + + +%\newpage + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + +%% bbbbbbb +Also, \thx{ttt4} indicates +self-justifying logics +can view +double-precision +integer multiplication +similarly +as + a total function. +In particular for +any arbitrary pair +of integers + $(a,b)$, +let us employ a notation convention where: +\bee +\item +{\bf Size(a,b)} denotes the maximum of +$ \, \lceil \, 1 \, + \,$Log$_2 \,a \, \rceil \, $ +and +$ \, \lceil \, 1 \, + \,$Log$_2 \,b \, \rceil \, $. +% $\, 1 \, + \,$Log$_2 \,b \,$. +\item The quantities +{\bf Left$(a,b)$} +and {\bf Right$(a,b)$} +represent the multiplicative product +of +the integers +$~a~$ and $~b~,~$ insofar as +Right$(a,b)$ +represents the rightmost bits of this product +of length Size(a,b), and +Left$(a,b)$ encodes the remaining bits to the left +of Right$(a,b)$ +(whose length will also be bounded by Size(a,b) ). +\ene +Within this context, +\thx{ttt4} indicates +self-justifying logics +self-justification +are able to view double-precision +integer-multiplication as +a total function. + +%% bbbbb +\begin{theorem} +\label{ttt4} +Let us assume +the $ \,A \,$ in +IS$_D(\aaa)$ and +$\ \beta \,$ in +\I2 +are axiom systems all of whose $\Pi_1^*$ +theorems are true statements under the standard model +of the natural numbers. +Then +if $D$ corresponds to either semantic tableaux or +\txl{1} deduction, +it is possible to formalize +systems +$~A^* \, \supseteq \, A~$ +and +$~\beta^* \, \supseteq \, \beta~$ +such that \js and \ns are self-justifying +extensions of respectively +IS$_D(\aaa)$ and +\I2 +which can recognize +%that +each of +the +double-multiplicative precision +operations of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ +%(that define the double-precision multiplicative product +%of $a$ and $b$) +as total functions. +\end{theorem} + +%% bbbbb +{\bf Proof Sketch;} The justification of \thx{ttt4} +is +% very +similar to +\cite{ww6}'s analysis of +Floating Point Multiplication +(with rounding). Our proof of \thx{ttt4} +will therefore be quite abbreviated. + +%% bbbbb +The first point is that it is +% quite +straightforward +to develop three $\Delta_0^*$ formulae, +called $\theta_1(a,b,y)$, + $~\theta_2(a,b,y)$ +and + $\theta_3(a,b,y)$, +that are the graphs of the functions + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +% Moreover, it +It +is also easy to construct a +finite set of $\Pi_1^*$ sentences, +holding true in the Standard Model, +called $~\gamma~$, +that know how to correctly interpret these three + $\Delta_0^*$ formulae, +insofar as $~\gamma~$ knows: +\bee +\item For each +%fixed +$a$ and $b$, there exists no more +than one integer $~y~$ that satisfies each of our +three $\theta_j(a,b,y)$ formulae. +\item For each +%fixed +$a$ and $b$, +our three $\theta_j(a,b,y)$ formulae +correctly simulate +the +graphs of +the respective +functions of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +\ene +%Moreover since +Since +our U-Grounding language contains the built-in +function primitives of ``Maximum'' and``Double$(x)$'', +the Group-1 component of +IS$_D$ +and IS$_D^{\#}$ +% formalisms +can +easily +verify that +the + operation +$F(a,b)$, defined below is a total function: +\beq +\label{F-def} +~F(a,b)~~=~~\mbox{ Double (Double (Double (Max}(a,b)))) +\enq +This implies, in turn, that +there exists a $\Pi_1^*$ sentence, called $\gamma^*$, that +will enable our formalism to verify that each of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ are total functions (simply because +their output values are less than +$~F(a,b)$'s output). + +The main point is that the hypothesis of \thx{ttt4} + indicated that +all the axioms of + $ \,A \,$ and +$\ \beta \,$ +did hold +true under the Standard Model, +and the preceding paragraph showed the same +was + true for all the axioms in + $~\gamma~$ and $~\gamma^*~$, +Hence all the axioms in +$~A^*~=~A~+~ \gamma~+~\gamma^*~$ +and +$~\beta^*~=~\beta~+~ \gamma~+~\gamma^*~$ +also +hold true in the Standard Model. +By Theorems \ref{ttt1} and \ref{ttt2}, +this implies that +IS$_D(\aaa)$ and +\I2 and are self-justifying formalism +satisfying \thx{ttt4}'s claims. $~~\Box$ + + + +%% \ik3 +%% represents Peano Arithmetic. Then +%% IS$_D(\aaa)$ and \ik3 +%% can formalize +%% two total functions, called Left$(a,b)$ +%% and Right$(a,b)$, +%% where any pair +%% of integers +%% $(a,b)$ +%% is mapped onto +%% the left and right halves of +%% $a$ and $b$'s multiplicative +%% product. + + +\begin{remark} +\rm +\label{rem-new} +One +subtle +%% slightly tricky +aspect is that our positive +results, +involving +\cite{ww6}'s +floating point multiplication +primitive +and \thx{ttt4}'s +analogous +double precision multiplication +operation, +{\it should +not be confused} with a +quite different +exploration of integer multiplication +in the context of our analysis of Herbrand +consistency +in \cite{ww9}. +The latter took advantage +of the fact that +our deployed + Herbrand-styled proofs +%%% in \cite{ww9}'s paradigm , are +in \cite{ww9} were +exponentially +longer than their +tableaux +counterparts +(thus allowing \cite{ww9} +to formalize +a limited use of multiplication). +This was because +% its +\cite{ww9}'s +deductive +methods +were +%%%%% were, inherently, +exponentially +less efficient +at an inherent +level. +Thus + \cite{ww9}'s result, +while +of +%somewhat +%% +%%certainly +%%perhaps +%% +theoretical +%theoretically +interest, +is +%essentially +%%% hhhhh +basically +irrelevant to +the core +engineering environments, +%e.g. +which +constitutes +% are +the + main +% central +focus of + Theorems \ref{ttt1}--\ref{ttt4}. +%% +%% (especially in regards to their +%% particular interpretations +%% given in +%% Remark \ref{rem2}). +%% +\end{remark} + + +%% In other words, Remark \ref{rem-new}'s +%% observation is, once again, connected to +%% the crucial distinction between +%% % an +%% engineering +%% and mathematical viewpoints +%% about +%% the +%% significance of theorem-proving. + + + +%%%bbbb +Remark \ref{rem-new}'s +contrast between + \cite{ww9}'s results and \thx{ttt4} + is, once again, connected to +the distinction between +the +engineering +and mathematical viewpoints +about + the main +intentions +%importance +%significance +of theorem-proving. +% From an engineering perspective, +\thx{ttt4} +is helpful +from an engineering perspective +because most +% of the +pragmatic +%engineering +applications +of integer multiplication +are analogous to either +%% +%% correspond to +%% essentially +%% % what correspond to be +%% the standard computerized word-oriented integer-multiplication +%% primitive +%% %operations +%% or +%% its +%% %their +%% conventional +%% + computerized double-precision +multiplication or its +quadruple-precision or hexagonal +% -precision +% computerized +generalizations. + +\thx{ttt4} +(and its quadruple-precision +and +% hexagonal-precision generalizations) +hexagonal generalizations) +% helpfully +indicate +% such +these +% pragmatic +operations are +% fully +compatible with a formalism recognizing its own +semantic tableaux +%and \txl{1} +consistency. + +\section{A Different Type of Evidence Supporting +Our +Thesis} + +\label{pppp8} + + +Let us recall + Pudl\'{a}k and Solovay +\cite{Pu85,So94} +observed +that +essentially all +Type-S +systems, +containing merely +statement \eq{totdefxs}'s +axiom that successor is a total function, +cannot verify their own consistency under +Hilbert deduction. +(See also related work by +Buss-Ignjatovic \cite{BI95}, +H\'{a}jek and + \v{S}vejdar \cite{Sv7}, +as well as \cite{ww1}'s +Appendix A.) + + +It turns out that +\cite{wwlogos} generalized +these + results to +show that +\ep{totdefxa}'s +Type-A +systems are unable to verify their +own consistency under the +\txl{2} deduction +system +(defined +in +\textsection + \ref{pppp3}). +At the same time, +the IS$_D$ +and IS$^{\#}_D$ +frameworks, +from Sections \ref{pppp4} + and \ref{pppp5}, can verify +their own consistency under +\txl{1} deduction. Our goal in this section will be to +illustrate how the +tight + contrast between these positive and negative +results +is +analogous to the differing growth rates +of +the +sequences +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from + rule \eq{smart-squeeze}. + + + + +During our discussion +$~G_i(v)~$ will denote +the scalar-multiplication +operation that maps +an integer $~v~$ onto +$~ 2^{2^i}\cdot v~$. +Also, $~\Upsilon_i~$ will denote +the statement, in the U-Grounding language, that +declares that + $~G_i~$ is a total function. +Our paper \cite{wwlogos} +proved that $~\Upsilon_i~$ has +a $\Pi_2^*$ encoding. It also implied that $~G_i~$ +satisfied: +\beq +\label{e-Gi} +G_{i+1}(v) ~~~ = ~~~ G_i(~ \, G_i(v)~ \, ) +\enq +It was +noted in \cite{wwlogos} that +this identity +implies one +can construct +an axiom system $ \beta $, comprised of +solely $\Pi_1^*$ sentences, +where +a semantic tableaux proof +can establish +$ \Upsilon_{i+1}$ +from +$ \beta+\Upsilon_i$ +in a constant number of steps. +This implies, in turn, that a \txl{2} proof from +$ \beta $ will require no more that O$(n)$ steps +to prove $ \Upsilon_{n}$ (when it uses the obvious +n-step process to +confirm in chronological order +$~\Upsilon_1 \, , \, \Upsilon_2 \, , \, ... \Upsilon_n ~.~~)$ + + +\smallskip + +These observations are significant because +$G_n(1)=2^{2^n}$. +Thus, +\cite{wwlogos} +% showed +established that +a \txl{2} proof +from $\beta$ can verify +in +only + O$(n)$ steps +that this +quite large + integer exists. + + +\smallskip + +This example is helpful because it illustrates +the difference between the growth speeds +under +\txl{1} and \txl{2} deduction, is analogous +to the +differing +growth +rates +of +the +sequences $ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from rule \eq{smart-squeeze}. +Hence once again, a faster growth-rate +will usher in +the Second Incompleteness Theorem's power +(e.g. see \cite{wwlogos}). + + +This analogy suggests +that the +Second +Incompleteness +Theorem has different implications from the perspectives +of +Utopian and engineering +theories about + the intended +applications of mathematics. Thus, a Utopian +may possibly be + comfortable +with +a +perspective, that contemplates sequences + $ y_0, y_1, y_2, ... $ +with +elements growing in length +at an exponential speed, but many engineers may be +suspicious of such +growths. + + + + + + +A hard-core engineer, +in contrast, might + surmise that the inability of self-justifying +formalisms to be compatible with \txl{2} deduction is +not +as disturbing + as it might +initially +appear to be. +This is +because \txl{2} +differs from + \txl{1} deduction +by producing +exponential growths that are so sharp +that their material realization has no analog +in the everyday mechanical reality that is the +focus of an engineer's +interest. + +Our personal preference is for +a perspective lying +half-way +between +that of an Utopian mathematician and +a hard-nosed engineer. +Its +dualistic +approach +suggests +some form of diluted +partial agreement +with Hilbert's goals +in $**$ (in a context where the broad significance of +the Second Incompleteness Theorem is obviously +undeniable). + + + + + + + + +\section{Outline of \thx{ttt2}'s Proof and +% Exploration of +% Further Discussion +Its Implications} + +\label{new9} +\label{newppp9} + + +The prior two sections of this article +offered an intuitive explanation about why our +self-justifying axiom systems needed omit the +assumption that multiplication is a total function +and +could verify their consistency +% verified their own consistency +only + under +% for +semantic tableaux and +\txl{1} deduction. + + +%%% \txl{1} deduction +%%% (rather than a stronger \txl{2} +%%% rule of inference). + + +We already noted +%that +\thx{ttt2}'s +observation that + IS$_D^{\#}$ +%% proof +%% that +is consistency-preserving +%transformation +has essentially an +analogous +% hhhh +%identical +proof as \cite{ww5}'s +demonstration that +%\K1 + IS$_D$ +is consistency-preserving. +It is not our intention to repeat +such a proof here. + +%%a +%%virtual +%% analog of +%%\cite{ww5}'s proof here. + +Instead, our goal will be to provide a brief overview +of the techniques +%appeared in \cite{ww5}'s proof. This +that \cite{ww5} +had +used. This +overview +will be +% brief but +%%% +%%% will not delve into all \cite{ww5}'s details. +%%% It will, +%%% however, be +%%% +sufficient +for +% so that +a reader +to +% can quickly +appreciate +the +% main +underlying +intuition. + +%the underlying intuition. + + +%%gain an intuition behind the +%%underlying nature +%% of Theorems \ref{ttt1} +%%and \ref{ttt2}. + +\bigskip + +More precisely, +two different types of proofs of \thx{ttt1} +had appeared in our 2002 conference paper \cite{tab2} +and subsequent journal paper \cite{ww5}. The +latter +%result +was more appropriate for an archival +journal because its self-justification result +applied to both semantic tableaux deduction and its +\txl{1} generalization. +The more compressed conference paper +\cite{tab2} proved the analog of \thx{ttt1} +only for tableaux deduction +(using a technique +% thus +that was +%pleasantly +somewhat +shorter +than \cite{ww5}'s more elaborate +result). +Our +% brief +summary of \thx{ttt1}'s +proof, +here, + will focus on the semantic tableaux deduction +methodology so it can apply to either of +\cite{tab2} +or \cite{ww5}'s +methods. +%results. + +%% +%%Our discussion +%%%in this section +%%will focus mostly on +%%\cite{ww5}'s more +%%sophisticated +%% result, but it should +%%be also helpful to readers who +%%wish to +%%examine only +%%\cite{tab2}'s +%%simpler +%%but +%%%% +%%%% and slightly simpler +%%%% presentation of a +%%%% +%%less ambitious result. + +Both of \cite{tab2,ww5} +%% had +% formalisms were +justified \thx{ttt1} +by means of proofs by +contradiction. +Thus if \thx{ttt1} +was false, +they +% both +noted +% then there would exist +%two +a pair of +proofs +%of +for +a $\Pi_1^*$ sentence and its negation +would exist +from +IS$_D(\aaa) $. + + + +Let us call these two proofs $P$ and $Q$. +Then \cite{tab2,ww5} both +showed +(using different constructions) that +one could construct from $(P,Q)$ +two other proofs $(p,q)$ of another +$\Pi_1^*$ sentence and its negation +such that: +\beq +\label{catch} +\mbox{Max}(p,q) ~~ < ~~ +\mbox{Max}(P,Q) +\enq +The inequality in \eq{catch} +is significant because it +will enable our proofs-by-contradiction to establish + the non-existence +of an ordered pair + $(P,Q)$ violating \thx{ttt1}'s assumption. +This is because +%otherwise +\eq{catch} +would +otherwise +violate the Principle of Induction by showing +there exists no such minimal ordered pair + $(P,Q)$ +eschewing \thx{ttt1}'s formalism. + +The +exact +details of these proofs by contradictions are too lengthy +%for us +to fully summarize +% them +here. +For the case where $D$ in \thx{ttt1} +is the semantic tableaux deduction method, they used the fact +that if $(P,Q)$ was the ordered pair with +minimal $ \mbox{Max}(P,Q)$ value violating +\thx{ttt1}'s hypothesis, +then one could +isolate +two +particular root-to-leaf paths in the tableaux +proofs $P$ and $Q$ that would enable us to construct an +additional pair $(p,q)$ +that violated \thx{ttt1} and satisfied +\eq{catch}'s inequality. + +This construction of + $(p,q)$ from $(P,Q)$ +utilized the fact that + \thx{ttt1}'s +axiom system + IS$_D(\alpha) $ recognized addition but not multiplication +as a total function. +Otherwise, \thx{ttt1}'s delicate +proof-by-contradiction would collapse entirely +(as a result of +the exponentially faster growth +properties +of multiplication +that was formalized by the +series + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship). + + +These observations reinforce the theme of +\textsection \ref{pppp7} +about the contrast between the slower growing series + $ x_1, x_2, x_3, ... $ +and its exponentially faster counterpart + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship. +These two series defined the +% respective +growth rates produced by the addition and +multiplication function symbols +% with +as, respectively, +$ \, x_n \, = \, 2^{ n+1} \, \, $ and +$ \, y_n \, = \, 2^{2^n} \, $. +They +thus illustrated +% thus, once again, illustrate +how multiplication's faster growth rate +leads to such a +%% +%% The themes of Sections \ref{ppp7} and +%% \ref{ppp8} was that the latter growth rate +%% represented a +%% +dizzying exponential speed-up, +that +% will +% would +makes +one at least partially sympathetic to a +hard-nosed engineer's skepticism about +its +implications. + +%significance. + +Thus if one were to +preclude such a dizzying growth rate then +a partial justification of a diluted version +of Hilbert's consistency program would arise, +in the context of systems possessing +{\it weak but well defined} knowledges of +their own consistency. +On the other hand, if the conventional assumption +that multiplication is a total function is presumed, +then the traditional interpretation of the +Second Incompleteness Theorem will +% , of course, fully +prevail. + + +%% +%% +%% Hence some partial caveats can be attached to the +%% Second Incompleteness Theorem that carry some +%% credibility from an hard-nosed engineering +%% perspective, while +%% simultaneously +%% they +%% fail to apply to a +%% %at the same time not +%% %be germane to a fully +%% pristine +%% mathematical +%% perspective +%% focused around the +%% Logical Platonism +%% (that G\"{o}del +%% had +%% explicitly explored). +%% %wrote about). + + +% \large + +% \baselineskip = 1.5 \normalbaselineskip + + +\section{Related Reflection Principles} + + +\label{pppxppp10} + +An added point is that there are many +types of +self-justifying systems available, with some +better suited for engineering environments +than others. + + +% bbb +For instance, our initial 1993 paper \cite{ww93} +employed a Group-3 {\it ``I am consistent''} axiom +that was much weaker than +the current specimen. +The distinction was that +\cite{ww93}'s self-consistency declaration +excluded +merely +the existence of a semantic tableaux proof +of $0=1$ from itself, while +the +sentence \eq{group3} is +more elaborate because +it excludes the existence of simultaneous proofs +of a $\Pi_1^*$ theorem and its negation. + + +Ideally, one would like to +develop self-justifying +systems $~S~$ that +% could +can +corroborate the validity +of \eq{brxefl}'s reflection principle for all sentences +$\Phi$. +\beq +\label{brxefl} +\forall p ~~[~ Prf_S^D(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +L\"{o}b's Theorem +establishes, +however, + that all + systems $S$, +containing +Peano Arithmetic's +strength, are able to prove +\eq{brxefl}'s invariant +{\it only in the degenerate case} where they +do +prove $\Phi$ +itself. Also, the Theorem 7.2 from \cite{ww1} +showed +essentially all +axiom systems, +{\it weaker} than Peano Arithmetic, are unable to prove \eq{brxefl} +for all $\Pi_1^*$ sentences $\Phi$ +simultaneously. Thus, +\thx{ttt5} +will be near optimal: + +%% xxxxx + +%%% bbbbb +\begin{theorem} +\label{ttt5} +Let us recall that the difference between \thx{ttt1}'s +axiom system + IS$_D(A)$ +and \thx{ttt3}'s formalism +\ik3 +was that the latter replaced + IS$_D(A)$'s infinite-sized Group-2 axiom schema +with \ik3's compact 1-sentence axiom +\eq{globsim}, so that the latter system could at least verify +\eq{t5kern}'s kernelized statement +for +each $\Pi_1^*$ theorem that $A$ proved. +\beq +\label{t5kern} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +Let likewise $IS^\lambda_\#( \, \beta_{A,i} \, )$ +denote the modification of \cite{ww1}'s $IS^\lambda(A)$ +self-justifying +system +that replaces the latter's Group-2 schema with +\eq{globsim}'s more compact single-sentence axiom declaration +(and +% again +%accordingly +then +has its Group-3 {\rm ``I am consistent''} +axiom statement +reflect this change, +once again). +Then in a context where ``semtab'' is an abbreviation for +semantic tableaux deduction, +the formalism $IS^\lambda_\#( \, \beta_{A,i} \, )$ +will be able to: +\bee +\item +Verify that +semantic tableaux + deduction supports the +following analog of +\eq{brxefl}'s +self-reflection principle +under + $IS^\lambda_\#( \, \beta_{A,i} \, )$ +%%% $S$ +for any +$\Delta_0^*$ and $\Sigma_1^*$ +sentences $\Phi~~$: +\beq +\label{nrxefl} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +\item +Verify +\eq{rdilute}'s more general +{\bf ``root-diluted''} reflection principle +for $IS^\lambda_\#( \, \beta_{A,i} \, )$ +whenever +$\theta$ is $\Sigma \, _{1}^*$ +and + $\Phi$ is a $\Pi_2^*$ sentence of the +form ``$~\forall u_1 ... \forall u_n~~ + \theta(u_1... u_n )~$''. +\beq +\label{rdilute} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Longrightarrow ~ \forall x~ + \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ + \theta(u_1... u_n ) ~] +\enq +\ene +\end{theorem} + + + +%% bbbb +As is suggested by the similarity between the +definitions of $IS^\lambda(A)$ and + $IS^\lambda_\#( \, \beta_{A,i} \, )$, +the proof of \thx{ttt5} is essentially +identical to +\cite{ww1}'s +analysis of $IS^\lambda(A)$. +For the sake of brevity, we will not repeat +the relevant proof here. + + + + +%%% +%%% \begin{theorem} +%%% \label{tts5} +%%% For any +%%% input axiom system $A$, +%%% it is possible to extend the self-justifying +%%% IS$_D(\aaa)$ and \ik3 +%%% systems, +%%% from Theorems \ref{ttt1} and \ref{ttt3}, +%%% so +%%% that the resulting +%%% self-justifying logics +%%% $S$ +%%% can also: +%%% \bee +%%% \item +%%% Verify that \txl{1} deduction supports the +%%% following analog of +%%% \eq{brxefl}'s +%%% self-reflection principle +%%% under $S$ +%%% for any +%%% $\Delta_0^*$ and $\Sigma_1^*$ +%%% sentences $\Phi~~$: +%%% \beq +%%% \label{nrxefl} +%%% \forall p ~~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Rightarrow ~~ \Phi~~] +%%% \enq +%%% \item +%%% Verify +%%% \eq{rdilute}'s more general +%%% {\bf ``root-diluted''} reflection principle +%%% for $~S~$ +%%% whenever +%%% $\theta$ is $\Sigma \, _{1}^*$ +%%% and +%%% $\Phi$ is a $\Pi_2^*$ sentence of the +%%% form ``$~\forall u_1 ... \forall u_n~~ +%%% \theta(u_1... u_n )~$''. +%%% \beq +%%% \label{rdilute} +%%% \forall p ~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Longrightarrow ~ \forall x~ +%%% \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ +%%% \theta(u_1... u_n ) ~] +%%% \enq +%%% \ene +%%% \end{theorem} +%%% + + +%% \thx{ttt5}'s proof +%% will +%% rest +%% upon +%% hybridizing +%% the techniques from +%% \cite{ww1}'s +%% tangibility reflection principle +%% with Theorem +%% \ref{ttt3}'s +%% methodologies, +%% in a +%% natural +%% very +%% manner. +%% %hhhh +%% Its proof is summarized in Appendix D. + + + +% \baselineskip = 1.21 \normalbaselineskip +\parskip 4pt + +Analogous to our +other +results, +\thx{ttt5} +reinforces +% the +our + theme about how +exceptions +to +the Second Incompleteness Theorem +may +appear to +be +{\it quite +minor} +from the perspective of +an Utopian +view of mathematics, +while +being +significant +from an engineering standpoint. +In \thx{ttt5}'s +particular case, +this is +because: +\bed +\item[A. ] +The ability of \thx{ttt5}'s +system +%%% $S$ +to +support +\eq{nrxefl}'s +self-reflection principle +under +tableaux +%\txl{1} +proofs for +any + $\Delta_0^*$ and $\Sigma_1^*$ sentence, +as well as +to +support +\eq{rdilute}'s +root +reflection principle +for $\Pi_2^*$ sentences, +is +clearly +significant. +\item[B. ] +The incompleteness result +of \cite{ww1}'s +Theorem 7.2 +imposes, +however, +sharp limitations upon Item A's +generality +(in that it cannot be extended to +fully all + $\Pi_1^*$ sentences, +{\it in an undiluted sense).} +\ennd +% +% \noindent +Thus, +the tight fit +between + A and B +is +reminiscent of +other +slender +borderlines, +that separated +generalizations and +boundary-case exceptions +for the +Incompleteness Theorem, +explored +earlier. +Once again, +the Second Incompleteness +Theorem +is +seen + as robust, +from an +idealized +Utopian perspective on mathematics, +while +permitting +caveats +from +engineering +styled +perspectives. + +This + dualistic +viewpoint +allows one to +nicely +share +{\it partial (and not full)} +agreement with +Hilbert's +main aspirations in $**$, +$\,$while also + appreciating +the + stunning +achievement +of +the Second Incompleteness Theorem. + + + + + + + + +\section{Concluding Remarks} + +\label{ppppp10} + + +At a purely technical level, +this article has reached beyond +our prior papers in +several +respects, +including +\textsection \ref{pppp5}'s demonstration +that any +initial +system $A$ +can have a kernelized image of its + $\Pi_1^*$ knowledge duplicated by +\ik3's {\bf strictly finite sized} +self-justifying +system, +as well as +%and also by + Section +\ref{pppp6}'s +and +Remark \ref{rem2}'s +quite + pragmatic + L-fold generalizations +of +\thx{ttt3}. + +% this result. + + + + +These +perspectives +%results +help resolve the mystery +that has +enshrouded +the Second Incompleteness Theorem and the statements +$*$ and $**$ +of G\"{o}del and Hilbert. +This is because +we have +{\it meticulously separated} +the goals of a +pristine theoretical study of mathematical +logic +from +those of +a + {\it +finite-sized} +axiomatic +subset of mathematics, +intended + for modeling +mostly +an engineering environment. + + + + + + + + + +There is no question that +G\"{o}del's Second +Theorem +is ideally robust, +relative to a +purely pristine +approach to mathematics. +On the other hand, we suspect +Hilbert +was +{\it half-way +correct} by + speculating +in + $**$ +about humans +possessing +a knowledge +about + their own consistency, +{\it in at least some +% strikingly + weak +and + tender sense,} as +essentially a +% fundamental +prerequisite +for +{\it psychologically + motivating} +their cogitations. +%%%% hhhhhh +Thus in a context where the limitations of axiom systems, +that fail to recognize multiplication as a total function, +are manifestly +obvious, +%% +%% +%% +%% even when +%% such systems +%% duplicate +%% Peano Arithmetic's +%% central +%% $\Pi_1^*$ knowledge, +%% +it is legitimate to +inquire + whether some +future +specialized +21st century computers + might +find +some +{\it partial-albeit-and-not-full} redeeming +value +in formalisms +having +{\it weak-style} + knowledges +of +their + \txl{1} consistency, +as well as possessing a knowledge of +Peano Arithmetic's +$\Pi_1^*$ theorems. + + +%%%% hhhh +%%More precisely, +Sections +\ref{pppp5}-\ref{pppxppp10} +were, +thus, + intended +to provide +a +unified +broad-scale +interpretation of our +diverse + earlier +results +that had appeared +%appearing +in \cite{ww93}-\cite{ww9}. +%from +%\cite{ww93,sp0,ww1,ww2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +In a +context where +the +Incompleteness +Theorem is +%% +%% firmly +%% understood +%% to be +%% + sufficiently +ubiquitous + to preclude Hilbert's +aspirations in $**$ +from +ever +being fully realized, +they show +how +some +{\it fragmentary portion} of Hilbert's +conjectures +can +be corroborated by +{\it judiciously weakened} logics, +using a formalism, that is +{\it much less} than ideally robust, +{\it although +not fully immaterial}. + +%\medskip + +\bigskip + +Such partial evasions of the Second Incompleteness Effect +are certainly not broad-scale, but they +do corroborate a fragment of what G\"{o}del and Hilbert +%referred to +had +sought +as +% ideal +their +desired +goals, +expressed + in the statements $*$ and $**$. + +\newpage + +%\bigskip + + {\bf Acknowledgments:} $~$I thank + Bradley Armour-Garb and Seth Chaiken for +many + useful suggestions about how to +improve the presentation of our results. +%% I also thank the anonymous referees for their comments. +This research was +partially supported +by NSF Grant CCR 0956495. + + +\small + \parskip 2 pt +\baselineskip = 0.86 \normalbaselineskip + + + +\bibliographystyle{abbrv} +\bibliography{b15} + + + + +% eeee end end +% \newpage + + + + + +%\large +% \baselineskip = 1.5 \normalbaselineskip + +% \baselineskip = 1.2 \normalbaselineskip + + \parskip 4 pt + +\ssspace + +\section*{Appendix A: Definition of a +Semantic Tableaux Proof } + +The +definition of a semantic tableaux proof, +provided here, +will be similar to analogous definitions used in +say Fitting's or Smullyan's textbooks + \cite{Fi90,Smul}. + +%% For simplicity +%% during our discourse, +%% a sentence $~\Psi~$ +%% will be called PRENEX$^*$ iff it is written in the +%% form $Q_1 \, x_1~Q_2\, x_2...~Q_n \, x_n~~\theta(x_1,x_2...x_n)~$ +%% where $~\theta(x_1,x_2...x_n)~$ is a $\Sigma_0^-$ formula +%% and $Q_i$ denotes either the symbol $\forall$ or $\exists$. + +During our +discussion, a +% discourse, a +{\bf $\Phi$-Based Candidate Tree} for +an axiom system $\, \alpha \,$ +will be defined +to be a tree structure +whose root corresponds to +the sentence $~\neg \, \Phi~,~$ rewritten in +prenex normal form, and whose all other nodes are +either axioms of $~\alpha~$ or deductions from higher +nodes of the tree +(using the Rules 1-6 defined below). +More precisely, our six rules +(below) + have +``$~ \cal{A} ~ \longmapsto ~ \cal{B} ~$'' denote +that $~ \cal{B} ~$ +is a valid deduction +from $~ \cal{A} ~$. +They +% thus +specify when such a +descendant +node $~ \cal{B} ~$ is allowed to +appear below an ancestor $~ \cal{A} $ +%% +%% is an ancestor of $~ \cal{B} ~$ +%% in the candidate tree $~T~$. In this notation, the deduction +%% rules allowed +%% +in a candidate tree: +\begin{enumerate} + \parskip 1 pt +\item $~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Upsilon +~$ +and +$~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Gamma ~$ . +\item $~ \neg \,\neg \, \Upsilon ~ \longmapsto ~ \Upsilon~$. +Other +% valid Tableaux +rules for +the ``$~ \neg ~$'' symbol include: $~$ +$~\neg ( \Upsilon \vee \Gamma ) ~ \longmapsto ~ \neg \Upsilon +\wedge \neg \Gamma~$, +$ \, \neg ( \Upsilon \Rightarrow \Gamma ) \, \longmapsto \, \Upsilon +\wedge \neg \Gamma \, $, +$ ~~~~\, \neg ( \Upsilon \wedge \Gamma ) \, \longmapsto \, \neg +\Upsilon \vee \neg \Gamma \, $, + $~ \, \neg \, \exists v \, \Upsilon (v) \, \longmapsto \, +\forall v \neg \, \Upsilon (v) \, $ and + $ ~\, \neg \, \forall v \, \Upsilon (v) \, \longmapsto \, +\exists v \, \neg \Upsilon (v)$ +\item A pair of sibling nodes $~ \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof +tree when their ancestor is +$~\Upsilon \, \vee \, \Gamma~$. +\item A pair of sibling nodes $~ \neg \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof + tree when their ancestor is +$~\Upsilon \, \Rightarrow \, \Gamma~$. +\item $~ \exists v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(u) ~$ +where $~u~$ denotes a newly introduced ``Parameter Symbol''. +\item $~ \forall v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(t) ~$ +where $~t~$ denotes a ``Composite Term''. +These terms here are +built out of +combination of + the U-Grounding Function symbols, +the constant symbols representing ``0'' and ``1'' +and the parameter symbols $~u_1,u_2,..,u_n~$, +where each +%symbol +$~u_i~$ {\bf was previously} +introduced by +% instance of +applying +Rule 5 +%applying +to +an ancestor +of the node storing +% the current new deduction + ``$ ~ \, \Upsilon(t) ~$''. +\end{enumerate} +Define a particular leaf-to-root branch in a candidate +tree $~T~$ to be {\bf Closed} iff it contains both some sentence +$~ \Upsilon ~$ and its negation $~ \neg \, \Upsilon ~$. + A {\bf Semantic +Tableaux} proof of $~\Phi~$ will then be defined to be +a candidate tree whose root stores the sentence +$~ \neg \Phi~$ (written in prenex normal +form) and all of whose root-to-leaf branches are +closed. + +% All our theorems in the current article have, + +Our +% discussion in the +current article has, +% will, +for simplicity, +used the preceding definition for a semantic tableaux proof. +Some of our prior articles +%have +used a minor modification +of this definition where there were two additional deduction +rules for ``bounded quantifiers'' of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$''. +It is technically unnecessary to use special rules for +such bounded quantifiers because these two expressions +can be treated as being equivalent to +\eq{bex} and \eq{beu}, respectively. +\beq +\label{bex} +\exists \, v ~~~~ v \leq t~\wedge~ \Upsilon (v) +\enq +\beq +\label{beu} +\forall \, v ~~~~ v \leq t~\Rightarrow~ \Upsilon (v) +\enq +Thus, we technically do not need special Elimination Rules +for bounded quantifiers of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$'' +because statement +\eq{bex} allows the + former to be eliminated +by applying Rules 5 and 1, and likewise +\eq{beu} can +be processed via Rules 6 and 4. + + +%% For simplicity, we will thus rely upon the above 6-part definition +%% of semantic tableaux during the current article. +%% +%% ???? Remove above sentence ??? bbbbbbbbbbbbbbbbb + +\section*{Appendix B: Summary of G\"{o}del Encoding Method} + +Every +%% formalization of either a +generalization and +% a +boundary-case +exception for + the Second Incompleteness +Theorem +does +require + deploying a + G\"{o}del encoding methodology +(to make it well defined). +Such an encoding scheme will be +called +{\bf Optimally Linearly Compressed} if it requires: +\bed +\item[ A. ] +Only +$O(1)$ bits to store +each occurrence +of any +logical symbol +% any of the logical symbols +appearing in a tableaux proof +(except for the objects that +Items 5 and 6 of Appendix A called the $i-$th +``variable'' and ``parameter'' symbols). +\item[ B. ] +No more than +$O(~1~+~$Log$(i) ~)$ bits to +encode + a proof's +$i-$th +``variable'' and ``parameter'' symbols. +(This $O(~1~+~$Log$(i) ~)$ magnitude is unavoidable +because +there is no finite limit to the number of different +variable and parameter objects that may appear in +one of Appendix A's +semantic tableaux proofs.) +\ennd +All our published results about either +generalizations or +boundary-case +exception +for the Second Incompleteness Theorem have used such optimally +compressed encodings. + + +In particular, +our scheme for +encoding +a semantic tableaux proof + will use +the following +24 language symbols: +\begin{enumerate} +\small + \baselineskip = 1.1 \normalbaselineskip +\item The standard connective symbols of +$\wedge ,~ \vee ,~ \neg ,~ \rightarrow ,~ \forall$ +and $~ \exists$. +\item Two +left and two right parenthesis symbols +denoted as: $~(~$ , $~)~$ +$~\underline{\, ( \,}~$ and $~\underline{\, ) \,}.~$ +\item +Two symbols to represent the special constants of ``0'' and ``1''. +\item +Eight function symbols for representing for representing +the eight formal U-grounding functions of Addition, Doubling, Subtraction, +Division, Logarithm, etc. +\item +The relation symbols of +``$~=~$'' and ``$~ \leq ~$''. +\item The symbol $~ \hat{V} ~$ for designating +the presence of a basic variable $~v~$ +in a logical sentence. +\item The symbol $~ \hat{U} ~$ for designating +the presence of a parameter constant $~u~$ +in a logical sentence (which is produced by +Appendix A's +deduction rule 5 for +eliminating +existential quantifiers). +\end{enumerate} +Define a byte to be an unit consisting of six bits. +We +may +%will + think of a proof as +comprising + either + a sequence of +bytes or being an +equivalent +integer +written in base 64. +Each of the 24 symbols (above) will be given +some unique 6-bit code, ranging between 32 and +55. +Our method for representing the presence of +the i-th variable $~v_i$ +will be to encode it is as +a string +comprised +of +$\, \lceil \, log_{\, 32 \,}(i+1) \, \rceil ~+~1~$ bytes, where the +first byte is the ``$\, \hat{V} \,$'' symbol and the remaining bytes +encode +i as a base-32 number. +% with the convention that the lead bit in each +%byte's 6-bit sequence is ``0''. +The same convention will be used to denote the presence of +the i-th parameter $~u_i~$ +except its first byte will be the ``$\, \hat{U} \,$'' symbol. + + + +Our notation has employed {\it two types} of +parenthesis symbols because the first pair of +parenthesis symbols will have their usual meaning in punctuating a +mathematical +sentence, whereas the latter pair of symbols + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ +will {\it separate} the individual sentences in +a Semantic Tableaux proof tree. For example, +consider a tree which stores +1) the sentence $~\psi_1~$ as its root, 2) +the sentences $~\psi_2~$ and $~\psi_3~$ as the root's children, and 3) +$~\psi_4~$ as the child of $~\psi_3.~$ There are several +possible notation conventions for using the + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ symbols +to encode a Semantic Proof tree. +Our encoding +convention will +presume +%be that +$~\psi_i~$ +is an ``ancestor'' of $~\psi_j~$ {\it if and only if} the range beginning +with the +parenthesis to $\psi_i$'s immediate left and continuing +to the matching right parenthesis includes +$~\psi_j.~$ +The example of our 4-node proof tree is thus +encoded as: +\begin{equation} +\label{paren} + ~~\underline{\, ( \,}~~ \psi_1 + ~~\underline{\, ( \,}~~ \psi_2~ + ~\underline{\, ) \,}~ + ~~\underline{\, ( \,}~~ \psi_3 + ~~\underline{\, ( \,}~~ \psi_4~ + ~\underline{\, ) \,}~~ \underline{\, ) \,}~~ \underline{\, ) \,}~ +\end{equation} + + +The preceding paragraph summarized our method for +encoding semantic tableaux proofs. Its +generalization +for +the +encoding of \txl{1} proofs is +straightforward. Thus if + $~p_1,p_2,...p_n~$ +collectively constitute +a list of semantic tableaux proofs +then the + natural concatenation +of their byte strings will be the corresponding + \txl{1} +proof. + +This ``Optimally Linearly Compressed'' encoding scheme +is +%noteworthy +essential +because all the core axiom systems, employed +in this article, are Type-A formalisms, that recognize Addition +but not Multiplication as a total function. If such formalisms +were less than optimally compressed then our main theorems +would lose relevance because the formalization +of +unnecessarily expansive encodings would be awkward +in the context of the slow growth properties of +Type-A formalisms. Thus, +our results carry much greater significance when their +% it is useful that our +encodings +of a proof satisfy the maximal compression properties, +% outlined in the first paragraph of +%that are +defined in +this appendix. + + +%% +%% This byte-styled encoding method is approximately analogous +%% to what Wilkie-Paris \cite{WP87} have called +%% a {\it natural B-adic} encoding or a similar +%% counterpart in the H\'{a}jek-Pudl\'{a}k textbook +%% \cite{HP91}. Such +%% compressed encodings are +%% considered to be more +%% meaningful and efficient than an uncompressed encoding method, +%% using say a Prime Number decomposition scheme \cite{Me97} +%% (because the latter has an unnecessarily long bit-length). +%% All our theorems would also be +%% valid for uncompressed +%% encoding methods. +%% However, they are more meaningful when one uses an +%% efficiently compressed +%% B-adic encoding method. +%% +%% %\newpage +%% + + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + + +\section*{Appendix C: Formal Encoding of +%Statmenent \eq{group3}'s +the +Group-3 Axiom} + +Let us recall +%that +Appendix A +reviewed the definition of +a +semantic tableaux +and \txl{1} + proof, + and Appendix B formalized the +encodings +of such proofs. The goal of this appendix +will be to summarize the methodology +%% \cite{ww5} +%% that was +used to define +Statmenent \eq{group3}'s Group-3 +axiom +in \cite{ww5} . + +%%% Passive Voice change in above sentence much +%%% better because it understates my use of \cite{ww5} . + + +%% {\bf More Detailed Description of the Group-3 Axiom:} $~$ +%% A formal description of +%% IS$_D(A)$'s +%% Group-3 axiom is more complicated than the abbreviated +%% descriptions given either by +%% Sentence$~*~$ or by \ep{group3}'s analog. +%% The +%% main added complication is because +%% the Group-3 axiom declares the consistency of +%% a formal set of axioms that includes ``itself'' +%% (in the words of Sentence$~*~).~$ +%% As was noted in Section 1, the notion of an +%% axiom including +%% ``itself'' when it refers to the consistency +%% of an axiom schema dates back to Kleene's 1938 paper \cite{Kl38}. +%% However, Kleene's abbreviated +%% description is insufficient to establish that +%% \ep{group3} can be encoded precisely as +%% a +%% $\Pi_1^*$ sentence. The next two paragraphs will +%% explain how this can be done. + +Let + UNION($A$) denote the union of IS$_D(A)$'s Group-Zero, +Group-1 and Group-2 axioms. +It will be useful to employ the following notation: +\begin{description} +\item[ i] $\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)$ +will denote a formula designating +that $~p~$ is a proof of the theorem $~t~$ from the axiom +system UNION($A)$ using the deduction method $~D.~$ +\smallskip +\item[ ii] +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$ +will be a formula stating that +$~p~$ is a proof +(using the deduction method $~D~)~$ + of +a theorem $~t~$ +from the union +of the axiom system +UNION(A) with the added axiom +sentence specified by the integer +$\, h \,$. +\smallskip +\item[iii] + $\mbox{Subst} \, ( \, g \, , \, h \, )$ will denote +G\"{o}del's +classic substitution formula --- which yields TRUE when $\, g \,$ +is an encoding of a formula +and $\, h \,$ is an encoding of a sentence +that replaces all occurrence of free variables in $\, g \,$ with +% the formally +an +encoded term +% of +$~\underx{g}~$ +(that designates $g$'s G\"{o}del number.) +\smallskip +\item[ iv] +$\mbox{SubstPrf}_{~UNION(A)}^D~( \, g \, , \, t \, , \, p \,)$ +will denote the natural +hybridizations of the constructs from Items (ii) and (iii) +which yields a Boolean value of TRUE exactly when there +exists some integer $~h~$ +simultaneously +satisfying +{\it both} +the conditions + $\mbox{Subst} \, ( \, g \, , \, h \, )$ and +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$. + +\end{description} +Each of (i)--(iv) +can be encoded as $\Delta_0^*$ formulae. +Thus, Appendices C and D of \cite{ww1} +%% thus, + explained how +the first three of these predicates can receive + $\Delta_0^*$ encodings when one applies +the theory of LinH functions +\cite{HP91,Kr95,Wr78}. +Hence, \eq{encode} illustrates +one possible $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{~UNION(A)}^D \,( g , t , p )$'s +graph. (It is +equivalent to +the statement +$~$``$~\exists ~h~[~\mbox{Subst} ( g , h )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D( h , t , p )\, ] \, \,$''$,~$ + but \eq{encode} is + a $\Delta_0^*$ formula --- {\it unlike} the quoted +expression.) +\begin{equation} +\label{encode} +\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)~~~\vee~~~\exists ~h\leq p +~~[~ \mbox{Subst} \, ( \, g \, , \, h \, )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)~] +\end{equation} + +Let us recall that +$\mbox{Pair}(x,y)$ is a $\Delta_0^*$ sentence +specifying that + $~x~$ +and $~y~$ +are +the encodings of + a $\Pi_1^*$ +and $\Sigma_1^*$ sentence, +that are logical negations of each other. +Using + \eq{encode}'s + $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{UNION(A)}^D( g , t , p )$, +we can now explain +how +statement +\eq{group3}'s Group-3 Axiom can +be formally encoded. +Let +$~\Gamma(g)~$ +denote \ep{encode2}'s formula, +% and let + $~n~$ denote $~\Gamma(g)$'s +G\"{o}del number +and $\underx{n}$ +denote a term encoding $n$ in the U-Grounding language. +$~\,$Then +it will turn out that $~$``$~\Gamma(~ \underx{n}~)~$''$~$ +will be a $\Pi_1^*$ sentence +that is equivalent to + this Group-3 axiom. +\begin{equation} +\label{encode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , y , q ) \,] +\end{equation} +More precisely, \eq{newencode2} formalizes the encoding +of + $~$``$~\Gamma(~ \underx{n}~)~$''. +\begin{equation} +\label{newencode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , y , q ) \,] +\end{equation} +%In particular, +Thus, +if we view +$~~$``$~\mbox{SubstPrf}_{~UNION(A)}^D~( \, + \underx{n} \, , \, t \, , \, p \,)~$'' +in \eq{newencode2} +as our formal method of +encoding the concept that was previously informally +called +``$~\mbox{Prf}~_{\mbox{IS}_D(A)}(t,p)~$'' +by Statement \eq{group3}, +then \eq{newencode2} amounts to +the formal encoding of +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration. + +\bigskip + +{\bf Reminder about +the Significance of + \eq{newencode2}'s Encoding :} +The preceding construction +%shows +had showed +merely that it is possible +to encode +Sentence +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration +in a well-defined manner as a $\Pi_1^*$ +sentence. +It does not answer the more subtle question about whether or not +its +{\it ``I am consistent''} axiom declaration +holds +true + under the Standard model. +%of the natural numbers. +As we have noted before, +most analogs of +%the above sentence +\eq{newencode2} +produce false statements +%fail to hold True +under the Standard Model +because a conventional G\"{o}del-like +diagonalization argument will imply +that +most deduction methods $D$ will produce +%their resulting +axiom systems +$\mbox{IS}_D(A)$ +that are + inconsistent. + +\medskip + +The reason for our +particular +interest in +\eq{newencode2}'s +formal encoding is that +Theorems \ref{ttt1} and \ref{ttt2} +indicate that $\mbox{IS}_D(A)$ +is +%indeed +consistent when $D$ denotes +either the semantic tableaux or \txl{1} +deduction methodologies. Thus +\eq{newencode2}'s +Fixed-Point construction should be seen as a +methodology that has +%limited-but-subtle +limited applications, +but which is also +quite helpful (when it is feasible). + +%quite significant. +\end{document} + diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/r.tex b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/r.tex new file mode 100644 index 0000000..38afa22 --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/r.tex @@ -0,0 +1,4931 @@ +%% suny feb 11 noon removed bib + +% home 2014 Feb 9 9.6 -3pm old title with key words and bibliog added + +%% NEED to do SPELL + +%% godel t0 goedel and spell + +%%% home jan17 8.31 am + +%%% suny jannary11 spell 6pm + +% home 2015 january 10 7 am -minor amendment while listening Sinatra + +% home 2015 january 4 1.1 pm + +% home 2015 january 3 2.3 pm abstract and new-bib; jan4 3,1am reformat + + +%% 2014 home march 29 8.5 pm +%% AFTER PAPER SUBMITTED CHANGED LAST paragraph + +%% 2014 home march 28, 4.1 am suny 10.1 am changed 7 -10 to 6 -10 + +%IMPORTANT REMINDER Long Paper should prove Theorem 3 for D= sem tab + +%\documentclass[12pt]{article} +%\documentclass[10pt]{article} +%\documentclass[11pt]{article} +\documentclass[11pt]{article} + + + + + + + + +\usepackage{amssymb} + + + +\addtolength{\oddsidemargin}{-0.9in} + +\setlength{\textheight}{9.0 in} + + +\setlength{\textwidth}{6.5 in} +\setlength{\textwidth}{6.6 in} +\setlength{\textwidth}{6.4 in} + + + +% \addtolength{\topmargin}{-.5in} +% \addtolength{\topmargin}{-.9in} + \addtolength{\topmargin}{-.6in} + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +\newtheorem{corollary}{Corollary} +\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} + +%%% changed to double numbers + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + +\def\iii{IS$_D(\aaa)$} +\def\I2{IS$^{\#}_D(\beta)$} +\def\ik3{IS$^{\#}_D(\beta_{A,i})$} + +\def\js{IS$_D(A^*)$} +\def\ns{IS$^{\#}_D(\beta^*)$} + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + +%% +%% \title{ +%% %\Large +%% On the +%% %Broader +%% Epistemological +%% Significance of +%% Self-Justifying Axiom Systems +%% from a Semantic Tableaux Perspective} +%% + + + + +% old title is + + \title{ +%\Large +On the Broader +Epistemological +Significance of +Self-Justifying Axiom Systems} +% from the Perspective of Analytic Tableaux} + + + + + + + + + + + + + + + + + + + + + + + + + + +\def\aaa{A} +\def\ccc{Class} + + + + + + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + + + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{\normalsize This research +was partially supported +by the NSF Grant CCR 0956495. +\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + + + + +\date{State University of New York at Albany} + +\maketitle + + \setcounter{page}{0} + \thispagestyle{empty} + + + +\begin{abstract} +\large +\baselineskip = 1.5 \normalbaselineskip +This article will be a continuation of our +research into self-justifying +systems. +It will introduce +several +new theorems +(one of which +will transform our previous infinite-sized +self-verifying +logics +into formalisms +or purely finite size). +It will explain how self-justification +is useful, even when the Incompleteness +Theorem +clearly +does sharply +limit its +scope. +\end{abstract} + + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +{\large +{\bf Keywords and Phrases:} +G\"{o}del's Second Incompleteness Theorem, Hilbert's Second +Open Question, Semantic Tableaux Deduction, + Consistency.} + + +%% +%% \begin{quote} +%% %{\bf $~~~~$ Detailed Abstract (as requested by Call for Papers):} +%% {\bf $~~~~ $ Abstract:} +%% $~$ +%% This article will be a continuation of our research into self-justifying +%% systems. It will introduce several new theorems and then explore their +%% philosophical significance. Its two specific goals will be to: +%% \bed +%% \item[ A. ] +%% Explain how to transform our prior results about infinite-sized +%% self-verifying axiom systems into tighter results about axiom +%% systems of purely finite cardinality. +%% \item[ B. ] +%% Explain how self-justifying axiom systems are useful {\it even when +%% the Second Incompleteness Theorem specifies limits for their reach.} +%% In particular, this second part of our +%% research +%% %results +%% discourse +%% will explain how +%% self-justification is related to open questions and conjectures that +%% G\"{o}del and Hilbert raised in 1926 and 1931. +%% \ennd +%% \end{quote} + +%% +%% Our discussion will have a more philosophical and easier-to-comprehend tone +%% than the more mathematically styled presentation in our prior published +%% papers. +%% % +%% %Our discussion will have a more philosophical and easier-to-comprehend tone +%% %than the more mathematically styled in our prior published papers. +%% %% +%% %% The discussion in this article will have a more philosophical and +%% %% easier-to-comprehend tone than the mostly mathematical discourse in our +%% %% prior published papers. Its +%% %% +%% Its +%% concluding section will offer a new +%% interpretation of the Second Incompleteness Theorem, where G\"{o}del's +%% historic result is taken as being {\it robust and ubiquitous} from a purist +%% theoretical perspective, while +%% % still +%% permitting enough wiggle room to +%% explain how humans gain the {\it psychological motive} to cogitate in +%% applications-oriented engineering-style environments. + + + + +\normalsize + + + + +\baselineskip = 1.5\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\fgf {\baselineskip = 1.3 \normalbaselineskip } + + + +\bbint + + + + +\normalsize +%% \LARGE\baselineskip = 1.1\normalbaselineskip +\baselineskip = 1.2\normalbaselineskip + +%\vspace*{- 3.0 em} + +\newpage + + +\def\J1{IS$_D(~\cdot ~)$} + + + +\def\K1{IS$_D(~\cdot ~)$} +\def\J2{IS$^{\#}_D(~\cdot ~)$} + + +%%% ssssssssssssss +%% TEXT IS HERE + + \parskip 5 pt + +%%%%%\large + \baselineskip = 1.235 \normalbaselineskip + +\large + +\baselineskip = 1.6 \normalbaselineskip +\baselineskip = 2.0 \normalbaselineskip +\normalsize \baselineskip = 1.22 \normalbaselineskip + +\def\ssspace{\normalsize \baselineskip = 1.24 \normalbaselineskip } + +% \def\ssspace{\normalsize \baselineskip = 2.1 \normalbaselineskip } + +\ssspace + + \parskip 5 pt + +\section{Introduction} +\label{pppp1} + + +G\"{o}del's Incompleteness Theorem +has two parts. +Its +first half indicates no decision +procedure can identify +all of +arithmetic's + true statements. +Its + ``Second Incompleteness'' +result + specifies +sufficiently strong +logics +{\it cannot} verify their own consistency. +G\"{o}del +was careful to insert +a + caveat +into +his historic paper +\cite{Go31}, +indicating +a +{\it +diluted} +form +of Hilbert's Consistency Program +might +% have some success: +reach some +levels of +partial + success: +\begin{quote} +$*~$ +% (G\"{o}del \cite{Go31} 1931): +{\it ``It must be +expressly +noted +Proposition XI +(e.g. G\"{o}del's +``Second'' Incompleteness +Result) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and { there might +conceivably be finite proofs} which cannot +be stated in P or in ...''} +\end{quote} +Some +scholars +have interpreted +$\,*\,$ +as, possibly, +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialetica interpretation. +On the other hand, +the Stanford's Encyclopedia's +entry about G\"{o}del +quotes him, +in its + Section 2.2.4, +stating +he was hesitant to +view the +Second Incompleteness Theorem + as +fully +ubiquitous, until +learning +of Turing's +work. +Moreover, +Yourgrau \cite{Yo5} +states +von Neumann +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +Also, it is known + \cite{Da97,Go5,Yo5} +that +G\"{o}del + initially +presumed the +second theorem +was false, before proving his stunning +result. +%hhhh + + + +\smallskip + + + +In any case +several + year after he wrote $*$'s +initial + statement, +G\"{o}del gave a +1933 + lecture \cite{Go33}, +where he +told his audience +that +Hilbert's +initial +1926 objectives, summarized +formally +by + $**$ below, +had + {\it ``unfortunately''} +no +{\it + ``hope of succeeding along''} +its originally intended plans. +\begin{quote} +$**~$ (Hilbert \cite{Hil26} 1926): +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding itself.''} +\end{quote} + +Our research, in both the current article +and +the +prior papers +\cite{ww93}-\cite{ww14} +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}, +was stimulated by the prospect that we find $**$ enticing, +even though the Second Incompleteness +Theorem +{\it unequivocally} + demonstrates that logics +{\it cannot} recognize +their own consistency +{\it in a robust sense.} +Accordingly, we have studied +{\it both} generalizations and boundary-case exceptions +for the Second Incompleteness Theorem +in +\cite{ww93}-\cite{ww14}. +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +The current article will seek to +{\it both} strengthen these prior +results, +in the context of axiom systems +with +{\it + strictly finite cardinalities}, +and to also provide a more intuitive explanation of the +meaning +behind +\cite{ww93}-\cite{ww14}'s +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}'s +results. + +The thesis of this article will be delicate +because there can be no doubt that + the Second Incompleteness +Theorem is +sharply robust, +when viewed +from a + conventional +purist +mathematical + perspective. +On the other hand, we will argue that there are certain facets +of a ``Self-Justifying Logics'', that are tempting +under a hard-nosed +engineering perspective, +contemplating + sharply + {\it curtailed forms} of Hilbert's goals. +These results will be + fragile +{\it but +not +fully +immaterial.} + + +%bbbb +In other words, this +article will offer a somewhat complicated +2-part interpretation of the Second Incompleteness Theorem +where: +\bee +\item +The Second Incompleteness Theorem is seen as +being 100 \% +robust from a mathematical perspective +because of the +% ubiquitous and +widely +encompassing nature of the 1939 +Hilbert-Bernays analysis \cite{HB39} (centering around +their three +well-known +``Derivability Conditions'' \cite{Mend} ). +\item +On the other hand, our discourse +will partially +appreciate Hilbert's reluctance +to fully embrace the Second Incompleteness Theorem, +despite his +joint +work with Bernays \cite{HB39} +generalizing the Second Incompleteness Effect. +(This is +because it is awkward to explain how human beings can +% undeniable +acquire the mental energy +for motivating themselves to cogitate, +without possessing some type of instinctive faith +in their own self-consistency.) +\ene +%It is in the context where +Thus, +the current article + will seek to +separate a {\it ``mathematical''} from +what perhaps should be +{\it ``engineering-style''} + appreciation +of one's +internal consistency. We will seek to define and explore the +latter +%nature of this +%engineering notion in the current article +(with the hope that it will help formalize how future +21st century computers can benefit from its engineering-style +%% notion +perspective, +while still respecting +%%% at the same time +the strict prohibitions formalized by +G\"{o}del's millennial result.) + + +As the reader examines this paper, it should be kept in mind +that +it does +focus on +% the properties of +semantic tableaux +deduction (similar to the earlier +% more abbreviated +discussion that had +appeared in \cite{ww14}'s more abbreviated +conference-style summary of our results). +A second paper, currently under preparation, +will examine Hilbert-style deductive systems (whose +self-justification properties +are partially analogous and partly +quite +different from +% our +tableaux-style systems). +The combination of these two results will formally +define both the potential of self-justifying logics +and the limitations which the Second Incompleteness +Theorem imposes upon them. + + +%% +%% In other words, the theme of this article will be that conventional +%% interpretations of the Second Incompleteness Theorem are +%% certainly 100 \% +%% correct from a mathematical perspective. +%% as foreseen very rigorously +%% as early as 1939 +%% by Hilbert-Bernays \cite{HB39}. +%% This is because +%% no formalism can +%% recognize its own consistency in a very robust +%% strictly +%% %purely +%% mathematical +%% respect. +%% On the other hand, it also +%% seems +%% evident +%% %% appears apparent +%% % undeniable +%% that +%% human beings +%% will +%% %would +%% find it awkward +%% %be unable +%% to acquire the mental energy +%% for motivating themselves to cogitate, +%% without possessing some type of instinctive faith +%% in their own self-consistency. +%% This perhaps should be +%% called an +%% % {\it quasi- +%% {\it engineering=style appreciation} of one's +%% internal consistency. We seek to define and explore the +%% nature of this +%% engineering notion in the current article +%% (with the hope that it will help formalize how future +%% 21st century computers can benefit from this engineering-style +%% notion while, of course, respecting +%% %%% at the same time +%% the strict prohibitions formalized by +%% G\"{o}del's millennial result.) + + + +\section{Background Setting} +\label{pppp2} + + +Let + $( \alpha , d )$ +denote any axiom system +and deduction method satisfying +the +simple {\bf ``Split Rule''} +below$\,$\footnote{Our + ``Split Rule'' +is the trivial requirement + that all the axiom sentences in +$~\alpha~$ are +technically +{\it proper axioms}, and + that +deduction method $~d~$ is +required +to include +{\bf BOTH} a finite number of rules of inference +and +whatever ``logical axioms'' are needed +{\it (if any ? )} +by $\,d$'s methodology. +(This +trivial +Split-Rule +notation convention will +help us to provide a +%%hhhh +precisely formalized statement of our results. + .)}. +This pair +will +be called {\bf ``Self Justifying''} when: +\begin{description} + \item[ i ] one of $ \, \alpha \,$'s theorems +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +second + $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +requirement. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +\begin{quote} +$\bullet~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of the +system $ \alpha $ +with {\it this} +sentence ``SelfRef$(\alpha,d)$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +noted +how +to +encode +rough + analogs of + ``SelfRef$(\alpha,d)$''. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii's +requirement. + + +%% hhhh +This problem arises in +many +contexts besides + G\"{o}del's +paradigm, +where $\alpha$ was an extension of Peano Arithmetic +(see +\cite{Ad2,AZ1,BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Ko6,KT74,Lo55,Pa71,Pa72,Pu85,Pu96,Ro67,Sa12,So94,Sv7,Vi5,WP87,ww2,wwlogos,ww7}). +Such results formalize +paradigms where +self-justification is infeasible, +due to diagonalization issues. +(It should, +perhaps, + be added that among this +lengthy list of articles, +it was especially +\cite{Ad2,Bu86,Go31,Lo55,Pu85,So94,WP87}'s +incompleteness results that +influenced our +work in +\cite{ww93}-\cite{ww14}.) +% in \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}.) +In any case, the main point is that +most +logicians +have +hesitated +to + employ +an +analog of a + SelfRef$(\alpha,d)$ + axiom +because + $ \alpha^d = \alpha+$SelfRef$(\alpha,d) $ +is +typically +inconsistent. + + + + + + + + + +Our research +in \cite{ww93,ww1,ww5,ww6,wwapal} +focused on +paradigms +where +self-justification is feasible. +It +involved weakening +the properties +a +logic +can prove +about +addition and/or +multiplication +(to avoid +potential +difficulties). +To be more precise, let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote +3-way predicates +specifying +$x+y=z$ and +$x*y=z$. +Then a +logic +will be said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} iff it +includes +sentences +1-3 as axioms. + +\vspace*{- 0.4 em} +{\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + +\vspace*{- 1.2 em} + +A +logic +$\alpha$ +will be called +{\bf Type-M} iff it contains +\ref{totdefxs}-\ref{totdefxm} +as axioms, +{\bf $~$Type-A} iff it contains only +\eq{totdefxs} and \eq{totdefxa} as axioms, +{\bf $~$Type-S} iff it contains +only \eq{totdefxs} as an + axiom, and +{\bf $\,$Type-NS$\,$} iff it contains +none of these axioms. +The relationship of these constructs to +self-justification +is explained by +items (a) and (b): +\bed +\item[ a. ] +The existence of +Type-A systems that can recognize +their own +consistency under semantic tableaux deduction, +while proving +analogs of +all +Peano Arithmetic's + $\Pi_1$ theorems (in a slightly different language), +were +%%hhhh +demonstrated in +\cite{tab2,ww5}. +Also, \cite{ww1,wwapal} noted that +some +specialized +forms +of +Type-NS systems +can +likewise +recognize their +own Hilbert consistency. + + + +\item[ b. ] +The above +evasions of the Second Incompleteness +Theorem are known to be near-maximal in a mathematical sense. +This is because +the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} implied no +natural +Type-S system can recognize its Hilbert consistency, +and Willard +subsequently + \cite{ww2,ww7,ww9} +hybridized their formalisms with some techniques of +Adamowicz-Zbierski +\cite{Ad2,AZ1} +to establish that most +Type-M systems cannot recognize their +own semantic +tableaux consistency. +\ennd + + + +Other +fascinating +efforts to +evade the Second Incompleteness Theorem +have used +the Kreisel-Takeuti ``CFA'' +system \cite{KT74} +or the +the {\it interpretational framework} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to our approach +because they +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Instead, CFA uses the +special +properties of ``second order'' generalizations of Gentzen's +{\it cut-free} +Sequent Calculus, +and +the +interpretational approach +formalizes how some systems +recognize their + Herbrand consistency +on localized sets of integers, +which +unbeknownst to +themselves, +includes all +integers. +(These alternate results are interesting but +unrelated to our approach.) + + + + + + + +\section{Defining Notation and Earlier Results} +\label{pppp3} + +\label{sect3} + + + +A function $F $ +will be called {\bf Non-Growth} +iff +$ F(a_1...a_j) +\leq Maximum(a_1...a_j)$ +holds. +Six examples of +non-growth functions are +\bee +\small +\parskip 0pt +%hhhh +\item +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +\item +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +\item +$Maximum(x,y),$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +\item +$\,Root(x,y) \, = \, \lfloor \, x^{1/y} \, \rfloor~$. and +\item$Count(x,j)$ designating the number of ``1'' bits +among $ x$'s rightmost $ j $ bits. +\ene +The term +{\bf U-Grounding Function} +referred in \cite{ww5} to +a set of +primitives, +which included the +preceding +functions plus the {\it growth operations} of addition and +{\it Double$(x)=x+x$}. +Our language $L^*$ was +built +out of these +symbols, +plus the primitives of +``0'', ``1'', + ``$ \, = \, $'' +and ``$ \, \leq \, $''. + + + + +In a context where $~\, t \, ~$ is any term in \cite{ww5}'s +language $L^*$, +$\,$the quantifiers in +%% the wffs +$~ \forall ~ v \leq t~~ \Psi (v)~$ and $~ \exists ~ v \leq t~~ \Psi (v)$ +were called {\it bounded +quantifiers}. +Any formula in + $L^*$, +all of whose +quantifiers are bounded, was called +a $\Delta_0^*$ formula. +The $~\Pi_n^{* }~$ and $~\Sigma_n^{* }~$ formulae +were +then defined by the +usual +rules that: +\bee +\item +Every +$\Delta_0^*$ formula is considered to +be +``$~\Pi_0^{* }~$'' and +also + ``$~\Sigma_0^{* }~$''. +\item +A +wff +is called + $ \,\Pi_n^{* } \,$ +when it is encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ with +$\Phi$ being $\Sigma_{n-1}^{* }$ +\item +Also, +a wff +is called + $\Sigma_n^*$ +when it is encoded as +$\exists v_1 ..\exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{* }$. +\ene + +%%bbb +Our articles \cite{ww93,tab2,ww5} used the symbol $~D~$ to denote +a deduction method. +They focused mostly around the +semantic tableaux deductive methodology, +whose formal definition can be found in the textbooks +by Fitting and Smullyan +\cite{Fi90,Smul} and whose +definition is also reviewed +by Appendix A of the current article. + +%%bbb +Our articles \cite{wwlogos,ww5} +also considered an improved faster deductive technology, + called +{\bf Tab-k + deduction}, that +consists of a +speeded-up version of a +tableaux, +which +permits a +{\it limited analog} of +Gentzen-style deductive +cuts +for $\Pi_k^*$ and $\Sigma_k^*$ formulae. +Thus, if + $~H~$ +denotes a sequence of ordered pairs +$~(t_1,p_1),~(t_2,p_2),~...~(t_n,p_n),~$ +where $~p_i~$ is a Semantic Tableaux proof of the theorem $~t_i,~$ +then $H$ +has been + called a +{\bf ``Tab-k +Proof''} +of a theorem $~T~$ +from $\alpha$'s axioms + iff $~T=t_n~$ +and also: +\begin{enumerate} +\item +Each of the ``intermediately derived theorems'' +$~t_1,t_2, \, ... \, , t_{n-1}~$ +have a complexity no greater than that of +either a $\Pi_k^*$ or $\Sigma_k^*$ sentence. +\item +Each +proper axiom in $ p_i$'s +proof +comes +either +from $\alpha$ or is + one of $ t_1,t_2, \, ... \, , t_{i-1} $. +\end{enumerate} +Thus, a +Tab-k proof is essentially a generalization of a classic +semantic tableaux proof that essentially owns the equivalent of +an +extra specialized modus ponens rule for + $\Pi_k^*$ and $\Sigma_k^*$ sentences. + +Let +us say +an axiom system $\alpha$ +has a {\bf Level-J Understanding} +of its own +consistency +under a deduction method $D$ +iff $\alpha$ can prove that there exists no proofs +using +its axioms and $D$'s deduction +of both a +$\Pi_J^*$ theorem and its negation. +In this notation, items A and B summarize +\cite{sp0,ww2,wwlogos,ww5,ww7}'s +main +results: +\bed +\item[ A. ] + For +any +axiom system $A$ using $L^*\,$'s + U-Grounding language, +\cite{ww5} +showed its +IS$_D(A)$ formalism +could prove +all $A$'s $\Pi_1^*$ theorems and simultaneously +verify its +Level-1 +consistency under +\txl{1} deduction. + +\smallskip + +\item[ B. ] +Two negative results, tightly complementing +item A's +positive result, +were exhibited +in +\cite{sp0,ww2,wwlogos,ww7}. The first +was that \cite{sp0,ww2,ww7} showed +most +systems +are +unable to verify their +Level-0 consistency under +semantic tableaux +deduction, + when they included +statement +\eq{totdefxm}'s ``Type-M'' +axiom that multiplication +is a total function. Moreover, \cite{wwlogos} +offered an alternate +form +of this + incompleteness +result, +showing statement +\eq{totdefxa}'s +{\it +far weaker} +Type-A +systems +cannot +verify +their Level-0 consistency under +\txl{2} deduction. +\ennd + + + + +The contrast between these +positive and negative results +has + led to our conjecture that +automated +theorem provers +are likely + to +eventually +achieve +a fragmentary part of the ambitions +that were +suggested by Hilbert +in +$**\,$. +This is because +the question of whether a +formalism can support an +{\it idealized Utopian} +conception of +its own consistency is {\it +different} from +exploring the degrees to which +theorem-provers +can possess +a {\it fragmentary +knowledge} of +their own +consistency. +The +Incompleteness Theorem +has demonstrated +an Utopian idealized form of self-justification +is unobtainable, +but our research has found some +diluted +cousins +of this construct are +feasible +%%% hhhh +and warrant examination. + + +%%%bbbbb +In summary, +%as a reader examines the remainder of this article, +it should be kept in mind, +during the remainder of this article, +that the Hilbert-Bernays Derivability Conditions +\cite{HP91,HB39,Mend} +impose severe limits upon any evasion of +the Second Incompleteness Theorem. +% that are inexorable. +On the other hand, +it appears that a + human's + faith in his own consistency +is an essential +prequisite to gain the needed + psychological +motivation for +% cogitating. +stimulating cogitation? +% motivate to cogitate. +%cogitation, is also a non-trivial agent. +(This is why we suspect Hilbert was never willing +to concede that all facets of his consistency program +%would be +were +hopeless.) +A broad theme of this paper will, +% thus +thus, +be that it +is helpful to distinguish between the goals of +a +theoretical-oriented study of arithmetic from +that of +a more engineering-styled approach, +since the +Second Incompleteness Theorem is a perfect result +from the first perspective while it permits +for +% some +well-defined +limited-scale part-way exceptions from +the second vantage point. + +%% Above sentence replaces below + + +%% Our interest in +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% was +%% % stimulated by such +%% raised by these +%% considerations. + + +%% It is for this reason that +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% from the preceding two paragraphs, +%% warrant investigation. +%% +%are so important. + + +%% Their +%% two subtle contrasts will be our +%% main +%% focus +%% % of our attention +%% %in the remainder of this article. +%% in the rest of this article. +%% + + +\section{The IS$_D(A)$ Axiom System} +\label{pppp4} + + +\label{sect4} + +In a context where $~A~$ denotes any axiom +system using + $L^*\,$'s +U-Grounding language, IS$_D(A)$ +was defined +in \cite{ww5} +to be an axiomatic +formalism capable of recognizing all of +$A$'s $\Pi_1^*$ theorems and +corroborating +its own Level-1 consistency under $D$'s deductive method. +It +consisted of the +following four +groups of axioms: +\begin{description} +\item[Group-Zero:] +Two of the Group-zero axioms +did +% will +define +the +constant-symbols, +$\bar{c}_0$ +and $\bar{c}_1$, +designating the integers of 0 and 1. +The +Group-zero axioms +will +also define the +growth functions of addition and +$~Double(x) \, = \, x+x.~$ +The +net effect of these +axioms will be to set up a machinery to +define +any +integer +$~n \geq 2~$ +using fewer than +$3 \cdot \lceil \, $Log$~n~ \rceil \,$ +logic symbols. + + + + + +\item[Group-1:] +This axiom group +did +% will + consist of a +finite set of $\Pi_1^{*} $ sentences, denoted as $~F~$, which +can prove any $\Delta_0^*$ sentence that +holds true under the standard model of the natural numbers. +(Any finite set of +$\Pi_1^{*} $ sentences $~F~$ +with this property +may be used to define Group-1, +as \cite{ww5} noted.) + + + +\item[Group-2:] +Let $\ulxyz \Phi \urxyz$ denote +$\Phi$'s G\"{o}del Number, and +HilbPrf$_A(\ulxyz \Phi \urxyz,p)$ denote a +$\Delta_0^{*} $ formula indicating +$~p~$ is a +Hilbert-styled proof of +theorem $~\Phi~$ from +axiom system $A$. +For each $\Pi_1^{*} $ sentence $\Phi$, the +Group-2 schema +of \cite{ww5} +did +% will + contain an axiom of +form \eq{group2}. +(Thus IS$_D(A)$ can trivially prove + all $A$'s +$\Pi_1^{*} $ theorems.) +\begin{equation} +\forall ~p~~~\{~ \mbox{HilbPrf$_A(\ulxyz \Phi \urxyz,p)$} + ~~ +\Rightarrow ~~ \Phi~~\} +\label{group2} +\end{equation} +\item[Group-3:] +This final part of the IS$_D(\aaa)$ +essentially represented +% will be +a +self-referencing +$\Pi_1^*$ +axiom, +indicating +IS$_D(\aaa)$ meets +\textsection 3's criteria of being +``Level-1 consistent'' +under deductive method $D$. +It +amounts, +%is, +thus, +to the following declaration: +\begin{quote} +\# $~${\it No two +proofs exist +for +a $\Pi_1^{*} $ sentence +and its negation, when +$D$'s deductive method is applied to an axiom system, +consisting of +the {\it union} +of +Groups 0, 1 and 2 with {\bf $\,$this sentence$\,$} +(looking at itself).} +\end{quote} + +One encoding of \#, +$\,$as a self-referencing +$\Pi_1^{*} $ +axiom, +appears + in +\cite{ww5}. +%% hhhh0000000000 +Thus, +the +below +sentence +\eq{group3} +represents +\cite{ww5}'s +$\Pi_1^{*}\, $ styled +encoding for$~$ + \# +in a context where: +\bed +\item[ i. ] +$~~\mbox{Prf} \, _{\mbox{IS}_D(A)}(a,b) \, $ is +a + $\Delta_0^{*} $ formula +indicating +that +$ \, b \, $ is a proof + of a theorem $\, a\,$ +under + $\mbox{IS}_D(A)$'s axiom system +and $D$'s deduction method, +$\,~$and +\item[ ii. ] +$~~$Pair$(x,y)$ is a $\Delta_0^{*} $ formula +indicating +that $ \, x \, $ is a + $\Pi_1^{*} $ sentence +and +% that + $ \, y \, $ +represents +$ \, x \,$'s negation. +\end{description} +%% A summary of the formal techniques that +%% \cite{ww5} used to encode +%% sentence +%% \eq{group3} is provided in Appendix B. +\end{description} +\begin{equation} +\forall ~x~\forall ~y~\forall ~p~\forall ~q~~~~ \neg ~~ +[~~ \mbox{Pair}(x,y)~ \wedge ~ +~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(x,p)~ +\wedge ~ ~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(y,q)~ ] +\label{group3} +\end{equation} + +\begin{remark} \label{remc} +\rm +A +fully formal +summary of the techniques that +\cite{ww5} used to encode +%the +sentence +\eq{group3} is provided by +the combination of Appendices B and C. +The former appendix summarizes our +methods for generating the G\"{o}del numbers +of semantic tableaux and \txl{k} proofs +in an optimally compressed manner. +The latter appendix explores how +sentence +\eq{group3}'s self-referencing statement is precisely encoded. +\end{remark} + +{\bf Notation.} An operation $~I(~\bullet~)~$ that maps +an initial axiom system $\,\aaa \,$ onto an alternate +system $\,I(\aaa)\, $ will be called {\bf Consistency Preserving} +iff $\,I(\aaa)\, $ is consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers. In this +context, +\cite{ww5} demonstrated: + + +\begin{theorem} +\label{ttt1} +\label{thold} +Suppose +the symbol $D$ denotes either semantic +tableaux deduction or its \txl{1} generalization. +Then the IS$_D(~\bullet~)~$ mapping operation is consistency preserving +(e.g. +IS$_D(\aaa) $ +will be consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers). +\end{theorem} + +We emphasize +the most difficult part of \cite{ww5}'s +result was +neither the definition of its +IS$_D(\aaa) $'s axiom system nor the +$\Pi_1^*$ fixed-point + encoding of \eq{group3}'s Group-3 axiom. +Instead, +the key challenge + was the +confirming +of \thx{thold}'s +``Consistency Preservation'' +property. + + +The +confirming of +this +property +is +subtle +because its invariant breaks down when +$~D~$ is a deduction method only slightly stronger than +either semantic tableaux or \txl{1} deduction. +Thus, Pudl\'{a}k's and Solovay's +work \cite{Pu85,So94} +implies \thx{thold}'s analog fails when $D$ represents +Hilbert deduction, and \cite{wwlogos} showed its generalization + fails +even when $D$ represents \txl{2} deduction. + + + + + + + + +\section{A Finitized Generalization of \thx{thold}'s Methodology} +\label{pppp5} + + +\label{sect5} + +%%%mmmm +One +difficulty with IS$_D(\aaa)$ +was +is +that it +employed +an infinite number of different +incarnations of +sentence \eq{group2} +in its Group-2 scheme (since it contained one incarnation +of this sentence for each $\Pi_1^*$ sentence $\Phi$ in +$L^*\,$'s language). Such a Group-2 schema is awkward because +it simulates $A$'s +$\Pi_1^*$ +knowledge almost via a brute-force +enumeration. + + +Our Definition \ref{dd-is2} and Theorems +\ref{ttt2} and \ref{ttt3} will show how +to +mostly +overcome this problem by +compressing the infinite number +of +instances of sentence \eq{group2} in +IS$_D(\aaa)$'s Group-2 schema into +a purely finite structure. + +\smallskip + +\begin{definition} +\label{dd-is2} +\rm +Let $~\beta~$ denote any +finite set of +axioms that have + $\Pi_1^*$ encodings. +Then +\I2 +will denote an axiom system, +similar to IS$_D(\aaa)$, except +its Group-2 +scheme will employ $~\beta\,$'s set of axioms, +instead of using an infinite number of applications +of +statement \eq{group2}'s scheme. +(Thus, +the +{\it ``I am consistent''} statement +in \I2's Group-3 +axiom will be the same as before, except that +the {\it ``I am''} +fragment of its +self-referencing +statement +will reflect +these + changes in Group-2 in the obvious manner.) +\end{definition} + + + +\begin{theorem} +\label{ttt2} +Let + $D$ again denote either +semantic +tableaux +or \txl{1} deduction, +and $\beta$ again denote a set of +$\Pi_1^*$ axioms. +Then +\I2 +will be consistent whenever all +$\beta$'s axioms hold +true under the standard model. +(In other words, + \I2 +will satisfy an analog of \thx{ttt1}'s +consistency preservation property for IS$_D(\aaa) $.) +\end{theorem} + +%%bbbb +\thx{ttt2}'s +proof +is almost identical to +\cite{ww5}'s proof of \thx{ttt1}. +Its proof is too lengthy to repeat here. +Instead \textsection \ref{newppp9} +will +briefly summarize its +%% +%% provide +%% a +%% brief +%% %detailed +%% % an intuitive +%% summary +%% of the +%% formal +%% % germane +%% +proof. +This +abbreviated discussion +%% discourse +should be sufficient to explain +the gist behind the +proof's core +%needed +formalism, +%proofs, +without delving into +\cite{ww5}'s +full +%%%%% too many +%full +% formal +details. + +%%bbbb +Our next definition will enable us to formalize +the main application of +\thx{ttt2} that will be considered +here. +%during the present article. +It will essentially explain how +{\bf finite-sized} + self-justifying + logics + can provide an + {\bf infinite amount } + of + ``kernelized'' + $\Pi_1^*$ +styled +information. + + + +%%% It will. +%%% not be +%%% repeated in this extended abstract. +%%% Instead, +%%% this section +%%% will apply +%%% \thx{ttt2} +%%% to +%%% show how +%%% {\bf finite-sized} +%%% self-justifying +%%% logics +%%% can provide an +%%% {\bf infinite amount } +%%% of +%%% ``kernelized'' +%%% $\Pi_1^*$ information. +%%% + +\begin{definition} +\label{dkern} +\rm +Let +Test$_i(t,x)$ +denote any $\Delta_0^*$ formula, +and $~\ulcorner \Psi \urcorner ~$ denote +$\, \Psi\,$'s G\"{o}del number. Then +Test$_i(t,x)$ will be called a {\bf Kernelized Formula} +iff Peano Arithmetic can prove every $\Pi_1^*$ sentence +$~\Psi~$ satisfies \eq{testker}'s +identity: +\beq +\label{testker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +There are +infinitely +many + $\Delta_0^*$ predicates +Test$_1(t,x)$, Test$_2(t,x)$, Test$_3(t,x)$ ... +satisfying this kernelized condition +(one of which is illustrated by Example \ref{eex1}). +An enumerated list of all +the available kernels +is +called a {\bf Kernel-List}. +\end{definition} + +\begin{example} \label{eex1} \rm +The set of +true $\Sigma_1^*$ sentences is +r.e. +This +implies +there +exists a $\Delta_0^*$ formula, +called say Probe$(g,x)$, +such +that $~g~$ +is +the G\"{o}del number of +a $\Sigma_1^*$ statement that holds true in the Standard +Model +if and only if +%iff +\eq{e-probe} is true: +\beq +\label{e-probe} +\exists ~x~~~ \mbox{Probe}(g,x)~\wedge~ x \geq g +\enq +Now, let Pair$(t,g)$ denote a $\Delta_0^*$ formula +that specifies $~t~$ is the G\"{o}del number of +a $\Pi_1^*$ statement and + $~g~$ is +the $\Sigma_1^*$ formula which is its negation. +Then our notation implies +that + $~t~$ +is +a true + $\Pi_1^*$ statement +if and only if \eq{e-2probe} holds true: +\beq +\label{e-2probe} +\forall ~x~~~ +\neg~[~\exists ~g ~\leq~x~~~~~ \mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)~~] +\enq +Thus if +Test$_0(t,x)$ +denotes the $\Delta_0^*$ formula of +$~ \neg~[~\exists ~g \, \leq \, x~~ +\mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)]$, +it +is one example of what +Definition \ref{dkern} +would +call a +``Kernelized Formula''. +\end{example} + +\begin{definition} +\label{def3} +\rm +Let us recall +Definition \ref{dkern} +defined +{\bf Kernel-List} to be an enumeration of +all the +kernelized formulae +Test$_1(t,x)$, + Test$_2(t,x)$, Test$_3(t,x)...~$. +Assuming +Test$_i(t,x)$ is the $i-$th element in this +list +and +$\Psi$ is an arbitrary $\Pi_1^*$ sentence, +the +{\bf i-th Kernel Image} +of $\, \Psi \,$ + will be +defined as +the +following $\Pi_1^*$ +sentence: +\beq +\label{imagker} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +\end{definition} + +\begin{example} \label{eex2} \rm +The Definitions +\ref{dkern} +and \ref{def3} suggest that there is a + subtle relationship +between a sentence $~\Psi~$ and its $i-$th kernel image. +This is because +Definition \ref{dkern} +indicates that Peano Arithmetic can prove the invariant +\eq{testker}, indicating that + $~\Psi~$ +is equivalent to + its $i-$th kernel image. +However, a weak axiom system +can be plausibly uncertain about +whether this +equivalence +does formally hold. +This invariant is duplicated below: +\beq +\label{againtestker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq + +% equivalence holds. + +%mm% +Thus if a weak axiom system proves statement +\eq{imagker} (rather than $~\Psi~$), +it +%% may +will + not be able to equate these +two +results +(unless it is able to verify +\eq{againtestker}'s identity). +This problem will apply to \thx{ttt3}'s +formalism. +However, \thx{ttt3} will +% be +still +remain + of much interest +because \textsection \ref{pppp6} will +illustrate a +methodology that +can overcome +many of \thx{ttt3}'s limitations. +\end{example} + + + + + + + +\begin{theorem} +\label{ttt3} +Let $~A~$ denote any +system, +whose + axioms hold +true +in arithmetic's standard model, +and $~i~$ denote the index +of any of +Definition \ref{dkern}'s +kernelized formulae + Test$_i(t,x)$. +Then it is possible to construct a +finite-sized +collection of $\Pi_1^*$ sentences, called say + $\beta_{A,i}$, +where +\ik3 +satisfies the following invariant: +\begin{quote} +If $~\Psi~$ is one of the +$\Pi_1^*$ theorems of + $~A~$ +then \ik3 can prove +\eq{imagker}'s +statement + (e.g. it will prove the +``the $\, i-$th kernelized image'' +of +$~\Psi\,$). +\end{quote} +\end{theorem} + +\newpage + +\noindent +{\bf Proof Sketch:} +Our justification of +\thx{ttt3} will +use the following notation: +\bee +\item +Check$(t)$ will denote a $\Delta_0^*$ formula +that +produces a Boolean value of ``True'' when +$t$ represents the G\"{o}del +number of a $\Pi_1^*$ sentence. +\item + $~\mbox{HilbPrf}_A \,( t , q )~$ +will denote + a $\Delta_0^*$ formula that indicates +$~q~$ is a Hilbert-style proof of the theorem +$~t~$ from axiom system $~A~$. +\item +For any kernelized +Test$_i(t,x)$ +formula, GlobSim$_i$ +will +denote \eq{globsim}'s $\Pi_1^*$ sentence. +(It will be called $A$'s $i-$th +{\bf ``Global Simulation Sentence''}.) +\ene +\beq +\label{globsim} +\forall ~t~~ +\forall ~q~~ +\forall ~x~~\{~~ +[~~\mbox{HilbPrf}_A \,( t , q )~~ \wedge ~~ +\mbox{Check}(t)~~]~~~ +\Longrightarrow ~~~ +\mbox{Test}_i(t,x)~~~ \} +\enq + +%%mm +In this notation, +%%%the requirements of +\thx{ttt3} +shall +%will +be satisfied by any +version of the axiom system \I2, whose Group-2 schema $~\beta~$ +is a finite sized +consistent set of $\Pi_1^*$ sentences +that has +\eq{globsim} +as an axiom. +(This includes +the minimal sized such system, +% which we will +denoted as $~\beta_{A,i}~$, +that has only \eq{globsim} as an axiom.) +This is because +%Thus, +if +$\Psi$ is any +$\Pi_1^*$ theorem of $A$ whose proof +is denoted as $~\bar{p}~$, then both the +$\Delta_0^*$ predicates of +$\mbox{HilbPrf}_A \,( \ulxyz \Psi \urxyz , \bar{p} )$ and +$\mbox{Check}( \ulxyz \Psi \urxyz )$ +will hold true. +%are true. +Moreover, +IS$^{\#}_D$'s +%%%%%%%%%%%%%% \I2's +Group-1 axiom subgroup was defined so that +it can automatically prove all + $\Delta_0^*$ sentences that are true. +Hence, +%Thus, + \ik3 will + prove these two statements and +then automatically +%hence +corroborate (via axiom +\eq{globsim}) the further statement +of: +\beq +\label{interm} +\forall ~x~~ +\mbox{Test}_{\, i \,}(~ \ulxyz \Psi \urxyz ~,~x~ ) +\enq +%Hence +Thus +for each of the infinite number of $\Pi_1^*$ +theorems that $~A~$ proves, the above defined +formalism will prove a matching statement +that corresponds to +its +%% the + $\, i-$th kernelized image. $~~\Box$ + + +%% of +%% each +%% such proven theorem. +%% $~~\Box$ + +\section{ L-Fold Generalizations of \thx{ttt3} } +\label{pppp6} + + + + +\thx{ttt3} +is of +interest +because every axiom system $\,A\,$ +will have +its formalism +\ik3 +prove the + $\, i-$th kernelized image of every + $\Pi_1^*$ theorem that $A$ proves. +This fact is helpful +because +\eq{testker}'s invariance +holds for all $\Pi_1^*$ sentences. +Moreover, our +``U-Grounded'' +$\Pi_1^*$ sentences +capture all +Conventional Arithmetic's +{\it crucial} +$\Pi_1$ +information +because they can +view +multiplication as a 3-way + $\Delta_0^*$ +predicate +Mult$(x,y,z)$ +via +\eq{neweq1}'s +encoding of this predicate. +\begin{equation} +\label{neweq1} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x} \, 100~$? +%hhhh +Is the use of +such a sequence +%use, +for corroborating the Second Incompleteness +Effect +% , thus essentially, +%thereby +resting +% , essentially, +%, at least partially, +upon an +% an inherently +almost +artificial construct +(with + an +inherently +dizzying growth rate) ? +\end{quote} + + + +We will not attempt to derive a Yes-or-No answer to Question $***$ +because +we think that such a direct +response +%%% answer +is too simplistic. +Our point is that +both a positive and negative reply to + $***$ +are useful in different respects. +%% +%% it +%% is one of those epistemological questions that can be +%% debated +%% endlessly. +%% Our point is that $***$ +%% probably does not require a definitive +%% positive or negative answer because both perspectives +%% are useful. +%% +%% Thus, +%% the theoretical existence of a sequence +This because +the theoretical existence of a sequence +integers +of $ y_0, y_1, y_2, ... $, whose binary +encodings are doubling in length, is tempting +from the perspective of +an Utopian view of mathematics, while +awkward from an engineering styled +perspective. +We therefore ask: {\it ``Why not be tolerant +of both perspectives? ''} + +One virtue of +this tolerance is +it +ushers in +a greater understanding +for the statements $*$ and $**$ that G\"{o}del and +Hilbert made during +1926 and 1931. +This +is +because the +Incompleteness Theorem +demonstrates +no +formalism can display +an understanding of its own consistency in an +idealized + Utopian +sense. On the other hand, +\textsection 6 +suggested +these +two +remarks by G\"{o}del and Hilbert + might receive +more sympathetic interpretations, +if one +sought to explore +such questions from a less ambitious +almost engineering-style perspective. + + + + +Our +main thesis is +supported by a +theorem +from \cite{ww6}. It indicated that +tableaux +variations of self-justifying systems have no difficulty +in recognizing that an infinitized generalization of +a computer's +floating point multiplication (with rounding) is a total +function. The latter +differs from integer-multiplication, +by not having its output become double the length of +its input when a number is multiplied by itself. +Thus, the +intuitive +reason +\cite{ww6}'s + multiplication-with-rounding operation +is compatible with self-justification is +because it + avoids the +inexorable +exponential +growth under +rule \eq{smart-squeeze}'s sequence + $ y_0, y_1, y_2 .. ~ $. + +\bigskip + + +%\newpage + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + +%% bbbbbbb +Also, \thx{ttt4} indicates +self-justifying logics +can view +double-precision +integer multiplication +similarly +as + a total function. +In particular for +any arbitrary pair +of integers + $(a,b)$, +let us employ a notation convention where: +\bee +\item +{\bf Size(a,b)} denotes the maximum of +$ \, \lceil \, 1 \, + \,$Log$_2 \,a \, \rceil \, $ +and +$ \, \lceil \, 1 \, + \,$Log$_2 \,b \, \rceil \, $. +% $\, 1 \, + \,$Log$_2 \,b \,$. +\item The quantities +{\bf Left$(a,b)$} +and {\bf Right$(a,b)$} +represent the multiplicative product +of +the integers +$~a~$ and $~b~,~$ insofar as +Right$(a,b)$ +represents the rightmost bits of this product +of length Size(a,b), and +Left$(a,b)$ encodes the remaining bits to the left +of Right$(a,b)$ +(whose length will also be bounded by Size(a,b) ). +\ene +Within this context, +\thx{ttt4} indicates +self-justifying logics +self-justification +are able to view double-precision +integer-multiplication as +a total function. + +%% bbbbb +\begin{theorem} +\label{ttt4} +Let us assume +the $ \,A \,$ in +IS$_D(\aaa)$ and +$\ \beta \,$ in +\I2 +are axiom systems all of whose $\Pi_1^*$ +theorems are true statements under the standard model +of the natural numbers. +Then +if $D$ corresponds to either semantic tableaux or +\txl{1} deduction, +it is possible to formalize +systems +$~A^* \, \supseteq \, A~$ +and +$~\beta^* \, \supseteq \, \beta~$ +such that \js and \ns are self-justifying +extensions of respectively +IS$_D(\aaa)$ and +\I2 +which can recognize +%that +each of +the +double-multiplicative precision +operations of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ +%(that define the double-precision multiplicative product +%of $a$ and $b$) +as total functions. +\end{theorem} + +%% bbbbb +{\bf Proof Sketch;} The justification of \thx{ttt4} +is +% very +similar to +\cite{ww6}'s analysis of +Floating Point Multiplication +(with rounding). Our proof of \thx{ttt4} +will therefore be quite abbreviated. + +%% bbbbb +The first point is that it is +% quite +straightforward +to develop three $\Delta_0^*$ formulae, +called $\theta_1(a,b,y)$, + $~\theta_2(a,b,y)$ +and + $\theta_3(a,b,y)$, +that are the graphs of the functions + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +% Moreover, it +It +is also easy to construct a +finite set of $\Pi_1^*$ sentences, +holding true in the Standard Model, +called $~\gamma~$, +that know how to correctly interpret these three + $\Delta_0^*$ formulae, +insofar as $~\gamma~$ knows: +\bee +\item For each +%fixed +$a$ and $b$, there exists no more +than one integer $~y~$ that satisfies each of our +three $\theta_j(a,b,y)$ formulae. +\item For each +%fixed +$a$ and $b$, +our three $\theta_j(a,b,y)$ formulae +correctly simulate +the +graphs of +the respective +functions of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +\ene +%Moreover since +Since +our U-Grounding language contains the built-in +function primitives of ``Maximum'' and``Double$(x)$'', +the Group-1 component of +IS$_D$ +and IS$_D^{\#}$ +% formalisms +can +easily +verify that +the + operation +$F(a,b)$, defined below is a total function: +\beq +\label{F-def} +~F(a,b)~~=~~\mbox{ Double (Double (Double (Max}(a,b)))) +\enq +This implies, in turn, that +there exists a $\Pi_1^*$ sentence, called $\gamma^*$, that +will enable our formalism to verify that each of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ are total functions (simply because +their output values are less than +$~F(a,b)$'s output). + +The main point is that the hypothesis of \thx{ttt4} + indicated that +all the axioms of + $ \,A \,$ and +$\ \beta \,$ +did hold +true under the Standard Model, +and the preceding paragraph showed the same +was + true for all the axioms in + $~\gamma~$ and $~\gamma^*~$, +Hence all the axioms in +$~A^*~=~A~+~ \gamma~+~\gamma^*~$ +and +$~\beta^*~=~\beta~+~ \gamma~+~\gamma^*~$ +also +hold true in the Standard Model. +By Theorems \ref{ttt1} and \ref{ttt2}, +this implies that +IS$_D(\aaa)$ and +\I2 and are self-justifying formalism +satisfying \thx{ttt4}'s claims. $~~\Box$ + + + +%% \ik3 +%% represents Peano Arithmetic. Then +%% IS$_D(\aaa)$ and \ik3 +%% can formalize +%% two total functions, called Left$(a,b)$ +%% and Right$(a,b)$, +%% where any pair +%% of integers +%% $(a,b)$ +%% is mapped onto +%% the left and right halves of +%% $a$ and $b$'s multiplicative +%% product. + + +\begin{remark} +\rm +\label{rem-new} +One +subtle +%% slightly tricky +aspect is that our positive +results, +involving +\cite{ww6}'s +floating point multiplication +primitive +and \thx{ttt4}'s +analogous +double precision multiplication +operation, +{\it should +not be confused} with a +quite different +exploration of integer multiplication +in the context of our analysis of Herbrand +consistency +in \cite{ww9}. +The latter took advantage +of the fact that +our deployed + Herbrand-styled proofs +%%% in \cite{ww9}'s paradigm , are +in \cite{ww9} were +exponentially +longer than their +tableaux +counterparts +(thus allowing \cite{ww9} +to formalize +a limited use of multiplication). +This was because +% its +\cite{ww9}'s +deductive +methods +were +%%%%% were, inherently, +exponentially +less efficient +at an inherent +level. +Thus + \cite{ww9}'s result, +while +of +%somewhat +%% +%%certainly +%%perhaps +%% +theoretical +%theoretically +interest, +is +%essentially +%%% hhhhh +basically +irrelevant to +the core +engineering environments, +%e.g. +which +constitutes +% are +the + main +% central +focus of + Theorems \ref{ttt1}--\ref{ttt4}. +%% +%% (especially in regards to their +%% particular interpretations +%% given in +%% Remark \ref{rem2}). +%% +\end{remark} + + +%% In other words, Remark \ref{rem-new}'s +%% observation is, once again, connected to +%% the crucial distinction between +%% % an +%% engineering +%% and mathematical viewpoints +%% about +%% the +%% significance of theorem-proving. + + + +%%%bbbb +Remark \ref{rem-new}'s +contrast between + \cite{ww9}'s results and \thx{ttt4} + is, once again, connected to +the distinction between +the +engineering +and mathematical viewpoints +about + the main +intentions +%importance +%significance +of theorem-proving. +% From an engineering perspective, +\thx{ttt4} +is helpful +from an engineering perspective +because most +% of the +pragmatic +%engineering +applications +of integer multiplication +are analogous to either +%% +%% correspond to +%% essentially +%% % what correspond to be +%% the standard computerized word-oriented integer-multiplication +%% primitive +%% %operations +%% or +%% its +%% %their +%% conventional +%% + computerized double-precision +multiplication or its +quadruple-precision or hexagonal +% -precision +% computerized +generalizations. + +\thx{ttt4} +(and its quadruple-precision +and +% hexagonal-precision generalizations) +hexagonal generalizations) +% helpfully +indicate +% such +these +% pragmatic +operations are +% fully +compatible with a formalism recognizing its own +semantic tableaux +%and \txl{1} +consistency. + +\section{A Different Type of Evidence Supporting +Our +Thesis} + +\label{pppp8} + + +Let us recall + Pudl\'{a}k and Solovay +\cite{Pu85,So94} +observed +that +essentially all +Type-S +systems, +containing merely +statement \eq{totdefxs}'s +axiom that successor is a total function, +cannot verify their own consistency under +Hilbert deduction. +(See also related work by +Buss-Ignjatovic \cite{BI95}, +H\'{a}jek and + \v{S}vejdar \cite{Sv7}, +as well as \cite{ww1}'s +Appendix A.) + + +It turns out that +\cite{wwlogos} generalized +these + results to +show that +\ep{totdefxa}'s +Type-A +systems are unable to verify their +own consistency under the +\txl{2} deduction +system +(defined +in +\textsection + \ref{pppp3}). +At the same time, +the IS$_D$ +and IS$^{\#}_D$ +frameworks, +from Sections \ref{pppp4} + and \ref{pppp5}, can verify +their own consistency under +\txl{1} deduction. Our goal in this section will be to +illustrate how the +tight + contrast between these positive and negative +results +is +analogous to the differing growth rates +of +the +sequences +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from + rule \eq{smart-squeeze}. + + + + +During our discussion +$~G_i(v)~$ will denote +the scalar-multiplication +operation that maps +an integer $~v~$ onto +$~ 2^{2^i}\cdot v~$. +Also, $~\Upsilon_i~$ will denote +the statement, in the U-Grounding language, that +declares that + $~G_i~$ is a total function. +Our paper \cite{wwlogos} +proved that $~\Upsilon_i~$ has +a $\Pi_2^*$ encoding. It also implied that $~G_i~$ +satisfied: +\beq +\label{e-Gi} +G_{i+1}(v) ~~~ = ~~~ G_i(~ \, G_i(v)~ \, ) +\enq +It was +noted in \cite{wwlogos} that +this identity +implies one +can construct +an axiom system $ \beta $, comprised of +solely $\Pi_1^*$ sentences, +where +a semantic tableaux proof +can establish +$ \Upsilon_{i+1}$ +from +$ \beta+\Upsilon_i$ +in a constant number of steps. +This implies, in turn, that a \txl{2} proof from +$ \beta $ will require no more that O$(n)$ steps +to prove $ \Upsilon_{n}$ (when it uses the obvious +n-step process to +confirm in chronological order +$~\Upsilon_1 \, , \, \Upsilon_2 \, , \, ... \Upsilon_n ~.~~)$ + + +\smallskip + +These observations are significant because +$G_n(1)=2^{2^n}$. +Thus, +\cite{wwlogos} +% showed +established that +a \txl{2} proof +from $\beta$ can verify +in +only + O$(n)$ steps +that this +quite large + integer exists. + + +\smallskip + +This example is helpful because it illustrates +the difference between the growth speeds +under +\txl{1} and \txl{2} deduction, is analogous +to the +differing +growth +rates +of +the +sequences $ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from rule \eq{smart-squeeze}. +Hence once again, a faster growth-rate +will usher in +the Second Incompleteness Theorem's power +(e.g. see \cite{wwlogos}). + + +This analogy suggests +that the +Second +Incompleteness +Theorem has different implications from the perspectives +of +Utopian and engineering +theories about + the intended +applications of mathematics. Thus, a Utopian +may possibly be + comfortable +with +a +perspective, that contemplates sequences + $ y_0, y_1, y_2, ... $ +with +elements growing in length +at an exponential speed, but many engineers may be +suspicious of such +growths. + + + + + + +A hard-core engineer, +in contrast, might + surmise that the inability of self-justifying +formalisms to be compatible with \txl{2} deduction is +not +as disturbing + as it might +initially +appear to be. +This is +because \txl{2} +differs from + \txl{1} deduction +by producing +exponential growths that are so sharp +that their material realization has no analog +in the everyday mechanical reality that is the +focus of an engineer's +interest. + +Our personal preference is for +a perspective lying +half-way +between +that of an Utopian mathematician and +a hard-nosed engineer. +Its +dualistic +approach +suggests +some form of diluted +partial agreement +with Hilbert's goals +in $**$ (in a context where the broad significance of +the Second Incompleteness Theorem is obviously +undeniable). + + + + + + + + +\section{Outline of \thx{ttt2}'s Proof and +% Exploration of +% Further Discussion +Its Implications} + +\label{new9} +\label{newppp9} + + +The prior two sections of this article +offered an intuitive explanation about why our +self-justifying axiom systems needed omit the +assumption that multiplication is a total function +and +could verify their consistency +% verified their own consistency +only + under +% for +semantic tableaux and +\txl{1} deduction. + + +%%% \txl{1} deduction +%%% (rather than a stronger \txl{2} +%%% rule of inference). + + +We already noted +%that +\thx{ttt2}'s +observation that + IS$_D^{\#}$ +%% proof +%% that +is consistency-preserving +%transformation +has essentially an +analogous +% hhhh +%identical +proof as \cite{ww5}'s +demonstration that +%\K1 + IS$_D$ +is consistency-preserving. +It is not our intention to repeat +such a proof here. + +%%a +%%virtual +%% analog of +%%\cite{ww5}'s proof here. + +Instead, our goal will be to provide a brief overview +of the techniques +%appeared in \cite{ww5}'s proof. This +that \cite{ww5} +had +used. This +overview +will be +% brief but +%%% +%%% will not delve into all \cite{ww5}'s details. +%%% It will, +%%% however, be +%%% +sufficient +for +% so that +a reader +to +% can quickly +appreciate +the +% main +underlying +intuition. + +%the underlying intuition. + + +%%gain an intuition behind the +%%underlying nature +%% of Theorems \ref{ttt1} +%%and \ref{ttt2}. + +\bigskip + +More precisely, +two different types of proofs of \thx{ttt1} +had appeared in our 2002 conference paper \cite{tab2} +and subsequent journal paper \cite{ww5}. The +latter +%result +was more appropriate for an archival +journal because its self-justification result +applied to both semantic tableaux deduction and its +\txl{1} generalization. +The more compressed conference paper +\cite{tab2} proved the analog of \thx{ttt1} +only for tableaux deduction +(using a technique +% thus +that was +%pleasantly +somewhat +shorter +than \cite{ww5}'s more elaborate +result). +Our +% brief +summary of \thx{ttt1}'s +proof, +here, + will focus on the semantic tableaux deduction +methodology so it can apply to either of +\cite{tab2} +or \cite{ww5}'s +methods. +%results. + +%% +%%Our discussion +%%%in this section +%%will focus mostly on +%%\cite{ww5}'s more +%%sophisticated +%% result, but it should +%%be also helpful to readers who +%%wish to +%%examine only +%%\cite{tab2}'s +%%simpler +%%but +%%%% +%%%% and slightly simpler +%%%% presentation of a +%%%% +%%less ambitious result. + +Both of \cite{tab2,ww5} +%% had +% formalisms were +justified \thx{ttt1} +by means of proofs by +contradiction. +Thus if \thx{ttt1} +was false, +they +% both +noted +% then there would exist +%two +a pair of +proofs +%of +for +a $\Pi_1^*$ sentence and its negation +would exist +from +IS$_D(\aaa) $. + + + +Let us call these two proofs $P$ and $Q$. +Then \cite{tab2,ww5} both +showed +(using different constructions) that +one could construct from $(P,Q)$ +two other proofs $(p,q)$ of another +$\Pi_1^*$ sentence and its negation +such that: +\beq +\label{catch} +\mbox{Max}(p,q) ~~ < ~~ +\mbox{Max}(P,Q) +\enq +The inequality in \eq{catch} +is significant because it +will enable our proofs-by-contradiction to establish + the non-existence +of an ordered pair + $(P,Q)$ violating \thx{ttt1}'s assumption. +This is because +%otherwise +\eq{catch} +would +otherwise +violate the Principle of Induction by showing +there exists no such minimal ordered pair + $(P,Q)$ +eschewing \thx{ttt1}'s formalism. + +The +exact +details of these proofs by contradictions are too lengthy +%for us +to fully summarize +% them +here. +For the case where $D$ in \thx{ttt1} +is the semantic tableaux deduction method, they used the fact +that if $(P,Q)$ was the ordered pair with +minimal $ \mbox{Max}(P,Q)$ value violating +\thx{ttt1}'s hypothesis, +then one could +isolate +two +particular root-to-leaf paths in the tableaux +proofs $P$ and $Q$ that would enable us to construct an +additional pair $(p,q)$ +that violated \thx{ttt1} and satisfied +\eq{catch}'s inequality. + +This construction of + $(p,q)$ from $(P,Q)$ +utilized the fact that + \thx{ttt1}'s +axiom system + IS$_D(\alpha) $ recognized addition but not multiplication +as a total function. +Otherwise, \thx{ttt1}'s delicate +proof-by-contradiction would collapse entirely +(as a result of +the exponentially faster growth +properties +of multiplication +that was formalized by the +series + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship). + + +These observations reinforce the theme of +\textsection \ref{pppp7} +about the contrast between the slower growing series + $ x_1, x_2, x_3, ... $ +and its exponentially faster counterpart + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship. +These two series defined the +% respective +growth rates produced by the addition and +multiplication function symbols +% with +as, respectively, +$ \, x_n \, = \, 2^{ n+1} \, \, $ and +$ \, y_n \, = \, 2^{2^n} \, $. +They +thus illustrated +% thus, once again, illustrate +how multiplication's faster growth rate +leads to such a +%% +%% The themes of Sections \ref{ppp7} and +%% \ref{ppp8} was that the latter growth rate +%% represented a +%% +dizzying exponential speed-up, +that +% will +% would +makes +one at least partially sympathetic to a +hard-nosed engineer's skepticism about +its +implications. + +%significance. + +Thus if one were to +preclude such a dizzying growth rate then +a partial justification of a diluted version +of Hilbert's consistency program would arise, +in the context of systems possessing +{\it weak but well defined} knowledges of +their own consistency. +On the other hand, if the conventional assumption +that multiplication is a total function is presumed, +then the traditional interpretation of the +Second Incompleteness Theorem will +% , of course, fully +prevail. + + +%% +%% +%% Hence some partial caveats can be attached to the +%% Second Incompleteness Theorem that carry some +%% credibility from an hard-nosed engineering +%% perspective, while +%% simultaneously +%% they +%% fail to apply to a +%% %at the same time not +%% %be germane to a fully +%% pristine +%% mathematical +%% perspective +%% focused around the +%% Logical Platonism +%% (that G\"{o}del +%% had +%% explicitly explored). +%% %wrote about). + + +% \large + +% \baselineskip = 1.5 \normalbaselineskip + + +\section{Related Reflection Principles} + + +\label{pppxppp10} + +An added point is that there are many +types of +self-justifying systems available, with some +better suited for engineering environments +than others. + + +% bbb +For instance, our initial 1993 paper \cite{ww93} +employed a Group-3 {\it ``I am consistent''} axiom +that was much weaker than +the current specimen. +The distinction was that +\cite{ww93}'s self-consistency declaration +excluded +merely +the existence of a semantic tableaux proof +of $0=1$ from itself, while +the +sentence \eq{group3} is +more elaborate because +it excludes the existence of simultaneous proofs +of a $\Pi_1^*$ theorem and its negation. + + +Ideally, one would like to +develop self-justifying +systems $~S~$ that +% could +can +corroborate the validity +of \eq{brxefl}'s reflection principle for all sentences +$\Phi$. +\beq +\label{brxefl} +\forall p ~~[~ Prf_S^D(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +L\"{o}b's Theorem +establishes, +however, + that all + systems $S$, +containing +Peano Arithmetic's +strength, are able to prove +\eq{brxefl}'s invariant +{\it only in the degenerate case} where they +do +prove $\Phi$ +itself. Also, the Theorem 7.2 from \cite{ww1} +showed +essentially all +axiom systems, +{\it weaker} than Peano Arithmetic, are unable to prove \eq{brxefl} +for all $\Pi_1^*$ sentences $\Phi$ +simultaneously. Thus, +\thx{ttt5} +will be near optimal: + +%% xxxxx + +%%% bbbbb +\begin{theorem} +\label{ttt5} +Let us recall that the difference between \thx{ttt1}'s +axiom system + IS$_D(A)$ +and \thx{ttt3}'s formalism +\ik3 +was that the latter replaced + IS$_D(A)$'s infinite-sized Group-2 axiom schema +with \ik3's compact 1-sentence axiom +\eq{globsim}, so that the latter system could at least verify +\eq{t5kern}'s kernelized statement +for +each $\Pi_1^*$ theorem that $A$ proved. +\beq +\label{t5kern} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +Let likewise $IS^\lambda_\#( \, \beta_{A,i} \, )$ +denote the modification of \cite{ww1}'s $IS^\lambda(A)$ +self-justifying +system +that replaces the latter's Group-2 schema with +\eq{globsim}'s more compact single-sentence axiom declaration +(and +% again +%accordingly +then +has its Group-3 {\rm ``I am consistent''} +axiom statement +reflect this change, +once again). +Then in a context where ``semtab'' is an abbreviation for +semantic tableaux deduction, +the formalism $IS^\lambda_\#( \, \beta_{A,i} \, )$ +will be able to: +\bee +\item +Verify that +semantic tableaux + deduction supports the +following analog of +\eq{brxefl}'s +self-reflection principle +under + $IS^\lambda_\#( \, \beta_{A,i} \, )$ +%%% $S$ +for any +$\Delta_0^*$ and $\Sigma_1^*$ +sentences $\Phi~~$: +\beq +\label{nrxefl} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +\item +Verify +\eq{rdilute}'s more general +{\bf ``root-diluted''} reflection principle +for $IS^\lambda_\#( \, \beta_{A,i} \, )$ +whenever +$\theta$ is $\Sigma \, _{1}^*$ +and + $\Phi$ is a $\Pi_2^*$ sentence of the +form ``$~\forall u_1 ... \forall u_n~~ + \theta(u_1... u_n )~$''. +\beq +\label{rdilute} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Longrightarrow ~ \forall x~ + \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ + \theta(u_1... u_n ) ~] +\enq +\ene +\end{theorem} + + + +%% bbbb +As is suggested by the similarity between the +definitions of $IS^\lambda(A)$ and + $IS^\lambda_\#( \, \beta_{A,i} \, )$, +the proof of \thx{ttt5} is essentially +identical to +\cite{ww1}'s +analysis of $IS^\lambda(A)$. +For the sake of brevity, we will not repeat +the relevant proof here. + + + + +%%% +%%% \begin{theorem} +%%% \label{tts5} +%%% For any +%%% input axiom system $A$, +%%% it is possible to extend the self-justifying +%%% IS$_D(\aaa)$ and \ik3 +%%% systems, +%%% from Theorems \ref{ttt1} and \ref{ttt3}, +%%% so +%%% that the resulting +%%% self-justifying logics +%%% $S$ +%%% can also: +%%% \bee +%%% \item +%%% Verify that \txl{1} deduction supports the +%%% following analog of +%%% \eq{brxefl}'s +%%% self-reflection principle +%%% under $S$ +%%% for any +%%% $\Delta_0^*$ and $\Sigma_1^*$ +%%% sentences $\Phi~~$: +%%% \beq +%%% \label{nrxefl} +%%% \forall p ~~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Rightarrow ~~ \Phi~~] +%%% \enq +%%% \item +%%% Verify +%%% \eq{rdilute}'s more general +%%% {\bf ``root-diluted''} reflection principle +%%% for $~S~$ +%%% whenever +%%% $\theta$ is $\Sigma \, _{1}^*$ +%%% and +%%% $\Phi$ is a $\Pi_2^*$ sentence of the +%%% form ``$~\forall u_1 ... \forall u_n~~ +%%% \theta(u_1... u_n )~$''. +%%% \beq +%%% \label{rdilute} +%%% \forall p ~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Longrightarrow ~ \forall x~ +%%% \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ +%%% \theta(u_1... u_n ) ~] +%%% \enq +%%% \ene +%%% \end{theorem} +%%% + + +%% \thx{ttt5}'s proof +%% will +%% rest +%% upon +%% hybridizing +%% the techniques from +%% \cite{ww1}'s +%% tangibility reflection principle +%% with Theorem +%% \ref{ttt3}'s +%% methodologies, +%% in a +%% natural +%% very +%% manner. +%% %hhhh +%% Its proof is summarized in Appendix D. + + + +% \baselineskip = 1.21 \normalbaselineskip +\parskip 4pt + +Analogous to our +other +results, +\thx{ttt5} +reinforces +% the +our + theme about how +exceptions +to +the Second Incompleteness Theorem +may +appear to +be +{\it quite +minor} +from the perspective of +an Utopian +view of mathematics, +while +being +significant +from an engineering standpoint. +In \thx{ttt5}'s +particular case, +this is +because: +\bed +\item[A. ] +The ability of \thx{ttt5}'s +system +%%% $S$ +to +support +\eq{nrxefl}'s +self-reflection principle +under +tableaux +%\txl{1} +proofs for +any + $\Delta_0^*$ and $\Sigma_1^*$ sentence, +as well as +to +support +\eq{rdilute}'s +root +reflection principle +for $\Pi_2^*$ sentences, +is +clearly +significant. +\item[B. ] +The incompleteness result +of \cite{ww1}'s +Theorem 7.2 +imposes, +however, +sharp limitations upon Item A's +generality +(in that it cannot be extended to +fully all + $\Pi_1^*$ sentences, +{\it in an undiluted sense).} +\ennd +% +% \noindent +Thus, +the tight fit +between + A and B +is +reminiscent of +other +slender +borderlines, +that separated +generalizations and +boundary-case exceptions +for the +Incompleteness Theorem, +explored +earlier. +Once again, +the Second Incompleteness +Theorem +is +seen + as robust, +from an +idealized +Utopian perspective on mathematics, +while +permitting +caveats +from +engineering +styled +perspectives. + +This + dualistic +viewpoint +allows one to +nicely +share +{\it partial (and not full)} +agreement with +Hilbert's +main aspirations in $**$, +$\,$while also + appreciating +the + stunning +achievement +of +the Second Incompleteness Theorem. + + + + + + + + +\section{Concluding Remarks} + +\label{ppppp10} + + +At a purely technical level, +this article has reached beyond +our prior papers in +several +respects, +including +\textsection \ref{pppp5}'s demonstration +that any +initial +system $A$ +can have a kernelized image of its + $\Pi_1^*$ knowledge duplicated by +\ik3's {\bf strictly finite sized} +self-justifying +system, +as well as +%and also by + Section +\ref{pppp6}'s +and +Remark \ref{rem2}'s +quite + pragmatic + L-fold generalizations +of +\thx{ttt3}. + +% this result. + + + + +These +perspectives +%results +help resolve the mystery +that has +enshrouded +the Second Incompleteness Theorem and the statements +$*$ and $**$ +of G\"{o}del and Hilbert. +This is because +we have +{\it meticulously separated} +the goals of a +pristine theoretical study of mathematical +logic +from +those of +a + {\it +finite-sized} +axiomatic +subset of mathematics, +intended + for modeling +mostly +an engineering environment. + + + + + + + + + +There is no question that +G\"{o}del's Second +Theorem +is ideally robust, +relative to a +purely pristine +approach to mathematics. +On the other hand, we suspect +Hilbert +was +{\it half-way +correct} by + speculating +in + $**$ +about humans +possessing +a knowledge +about + their own consistency, +{\it in at least some +% strikingly + weak +and + tender sense,} as +essentially a +% fundamental +prerequisite +for +{\it psychologically + motivating} +their cogitations. +%%%% hhhhhh +Thus in a context where the limitations of axiom systems, +that fail to recognize multiplication as a total function, +are manifestly +obvious, +%% +%% +%% +%% even when +%% such systems +%% duplicate +%% Peano Arithmetic's +%% central +%% $\Pi_1^*$ knowledge, +%% +it is legitimate to +inquire + whether some +future +specialized +21st century computers + might +find +some +{\it partial-albeit-and-not-full} redeeming +value +in formalisms +having +{\it weak-style} + knowledges +of +their + \txl{1} consistency, +as well as possessing a knowledge of +Peano Arithmetic's +$\Pi_1^*$ theorems. + + +%%%% hhhh +%%More precisely, +Sections +\ref{pppp5}-\ref{pppxppp10} +were, +thus, + intended +to provide +a +unified +broad-scale +interpretation of our +diverse + earlier +results +that had appeared +%appearing +in \cite{ww93}-\cite{ww9}. +%from +%\cite{ww93,sp0,ww1,ww2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +In a +context where +the +Incompleteness +Theorem is +%% +%% firmly +%% understood +%% to be +%% + sufficiently +ubiquitous + to preclude Hilbert's +aspirations in $**$ +from +ever +being fully realized, +they show +how +some +{\it fragmentary portion} of Hilbert's +conjectures +can +be corroborated by +{\it judiciously weakened} logics, +using a formalism, that is +{\it much less} than ideally robust, +{\it although +not fully immaterial}. + +%\medskip + +\bigskip + +Such partial evasions of the Second Incompleteness Effect +are certainly not broad-scale, but they +do corroborate a fragment of what G\"{o}del and Hilbert +%referred to +had +sought +as +% ideal +their +desired +goals, +expressed + in the statements $*$ and $**$. + +\newpage + +%\bigskip + + {\bf Acknowledgments:} $~$I thank + Bradley Armour-Garb and Seth Chaiken for +many + useful suggestions about how to +improve the presentation of our results. +%% I also thank the anonymous referees for their comments. +This research was +partially supported +by NSF Grant CCR 0956495. + + +\small + \parskip 2 pt +\baselineskip = 0.86 \normalbaselineskip + + + +\bibliographystyle{abbrv} +\bibliography{b15} + + + + +% eeee end end +% \newpage + + + + + +%\large +% \baselineskip = 1.5 \normalbaselineskip + +% \baselineskip = 1.2 \normalbaselineskip + + \parskip 4 pt + +\ssspace + +\section*{Appendix A: Definition of a +Semantic Tableaux Proof } + +The +definition of a semantic tableaux proof, +provided here, +will be similar to analogous definitions used in +say Fitting's or Smullyan's textbooks + \cite{Fi90,Smul}. + +%% For simplicity +%% during our discourse, +%% a sentence $~\Psi~$ +%% will be called PRENEX$^*$ iff it is written in the +%% form $Q_1 \, x_1~Q_2\, x_2...~Q_n \, x_n~~\theta(x_1,x_2...x_n)~$ +%% where $~\theta(x_1,x_2...x_n)~$ is a $\Sigma_0^-$ formula +%% and $Q_i$ denotes either the symbol $\forall$ or $\exists$. + +During our +discussion, a +% discourse, a +{\bf $\Phi$-Based Candidate Tree} for +an axiom system $\, \alpha \,$ +will be defined +to be a tree structure +whose root corresponds to +the sentence $~\neg \, \Phi~,~$ rewritten in +prenex normal form, and whose all other nodes are +either axioms of $~\alpha~$ or deductions from higher +nodes of the tree +(using the Rules 1-6 defined below). +More precisely, our six rules +(below) + have +``$~ \cal{A} ~ \longmapsto ~ \cal{B} ~$'' denote +that $~ \cal{B} ~$ +is a valid deduction +from $~ \cal{A} ~$. +They +% thus +specify when such a +descendant +node $~ \cal{B} ~$ is allowed to +appear below an ancestor $~ \cal{A} $ +%% +%% is an ancestor of $~ \cal{B} ~$ +%% in the candidate tree $~T~$. In this notation, the deduction +%% rules allowed +%% +in a candidate tree: +\begin{enumerate} + \parskip 1 pt +\item $~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Upsilon +~$ +and +$~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Gamma ~$ . +\item $~ \neg \,\neg \, \Upsilon ~ \longmapsto ~ \Upsilon~$. +Other +% valid Tableaux +rules for +the ``$~ \neg ~$'' symbol include: $~$ +$~\neg ( \Upsilon \vee \Gamma ) ~ \longmapsto ~ \neg \Upsilon +\wedge \neg \Gamma~$, +$ \, \neg ( \Upsilon \Rightarrow \Gamma ) \, \longmapsto \, \Upsilon +\wedge \neg \Gamma \, $, +$ ~~~~\, \neg ( \Upsilon \wedge \Gamma ) \, \longmapsto \, \neg +\Upsilon \vee \neg \Gamma \, $, + $~ \, \neg \, \exists v \, \Upsilon (v) \, \longmapsto \, +\forall v \neg \, \Upsilon (v) \, $ and + $ ~\, \neg \, \forall v \, \Upsilon (v) \, \longmapsto \, +\exists v \, \neg \Upsilon (v)$ +\item A pair of sibling nodes $~ \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof +tree when their ancestor is +$~\Upsilon \, \vee \, \Gamma~$. +\item A pair of sibling nodes $~ \neg \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof + tree when their ancestor is +$~\Upsilon \, \Rightarrow \, \Gamma~$. +\item $~ \exists v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(u) ~$ +where $~u~$ denotes a newly introduced ``Parameter Symbol''. +\item $~ \forall v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(t) ~$ +where $~t~$ denotes a ``Composite Term''. +These terms here are +built out of +combination of + the U-Grounding Function symbols, +the constant symbols representing ``0'' and ``1'' +and the parameter symbols $~u_1,u_2,..,u_n~$, +where each +%symbol +$~u_i~$ {\bf was previously} +introduced by +% instance of +applying +Rule 5 +%applying +to +an ancestor +of the node storing +% the current new deduction + ``$ ~ \, \Upsilon(t) ~$''. +\end{enumerate} +Define a particular leaf-to-root branch in a candidate +tree $~T~$ to be {\bf Closed} iff it contains both some sentence +$~ \Upsilon ~$ and its negation $~ \neg \, \Upsilon ~$. + A {\bf Semantic +Tableaux} proof of $~\Phi~$ will then be defined to be +a candidate tree whose root stores the sentence +$~ \neg \Phi~$ (written in prenex normal +form) and all of whose root-to-leaf branches are +closed. + +% All our theorems in the current article have, + +Our +% discussion in the +current article has, +% will, +for simplicity, +used the preceding definition for a semantic tableaux proof. +Some of our prior articles +%have +used a minor modification +of this definition where there were two additional deduction +rules for ``bounded quantifiers'' of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$''. +It is technically unnecessary to use special rules for +such bounded quantifiers because these two expressions +can be treated as being equivalent to +\eq{bex} and \eq{beu}, respectively. +\beq +\label{bex} +\exists \, v ~~~~ v \leq t~\wedge~ \Upsilon (v) +\enq +\beq +\label{beu} +\forall \, v ~~~~ v \leq t~\Rightarrow~ \Upsilon (v) +\enq +Thus, we technically do not need special Elimination Rules +for bounded quantifiers of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$'' +because statement +\eq{bex} allows the + former to be eliminated +by applying Rules 5 and 1, and likewise +\eq{beu} can +be processed via Rules 6 and 4. + + +%% For simplicity, we will thus rely upon the above 6-part definition +%% of semantic tableaux during the current article. +%% +%% ???? Remove above sentence ??? bbbbbbbbbbbbbbbbb + +\section*{Appendix B: Summary of G\"{o}del Encoding Method} + +Every +%% formalization of either a +generalization and +% a +boundary-case +exception for + the Second Incompleteness +Theorem +does +require + deploying a + G\"{o}del encoding methodology +(to make it well defined). +Such an encoding scheme will be +called +{\bf Optimally Linearly Compressed} if it requires: +\bed +\item[ A. ] +Only +$O(1)$ bits to store +each occurrence +of any +logical symbol +% any of the logical symbols +appearing in a tableaux proof +(except for the objects that +Items 5 and 6 of Appendix A called the $i-$th +``variable'' and ``parameter'' symbols). +\item[ B. ] +No more than +$O(~1~+~$Log$(i) ~)$ bits to +encode + a proof's +$i-$th +``variable'' and ``parameter'' symbols. +(This $O(~1~+~$Log$(i) ~)$ magnitude is unavoidable +because +there is no finite limit to the number of different +variable and parameter objects that may appear in +one of Appendix A's +semantic tableaux proofs.) +\ennd +All our published results about either +generalizations or +boundary-case +exception +for the Second Incompleteness Theorem have used such optimally +compressed encodings. + + +In particular, +our scheme for +encoding +a semantic tableaux proof + will use +the following +24 language symbols: +\begin{enumerate} +\small + \baselineskip = 1.1 \normalbaselineskip +\item The standard connective symbols of +$\wedge ,~ \vee ,~ \neg ,~ \rightarrow ,~ \forall$ +and $~ \exists$. +\item Two +left and two right parenthesis symbols +denoted as: $~(~$ , $~)~$ +$~\underline{\, ( \,}~$ and $~\underline{\, ) \,}.~$ +\item +Two symbols to represent the special constants of ``0'' and ``1''. +\item +Eight function symbols for representing for representing +the eight formal U-grounding functions of Addition, Doubling, Subtraction, +Division, Logarithm, etc. +\item +The relation symbols of +``$~=~$'' and ``$~ \leq ~$''. +\item The symbol $~ \hat{V} ~$ for designating +the presence of a basic variable $~v~$ +in a logical sentence. +\item The symbol $~ \hat{U} ~$ for designating +the presence of a parameter constant $~u~$ +in a logical sentence (which is produced by +Appendix A's +deduction rule 5 for +eliminating +existential quantifiers). +\end{enumerate} +Define a byte to be an unit consisting of six bits. +We +may +%will + think of a proof as +comprising + either + a sequence of +bytes or being an +equivalent +integer +written in base 64. +Each of the 24 symbols (above) will be given +some unique 6-bit code, ranging between 32 and +55. +Our method for representing the presence of +the i-th variable $~v_i$ +will be to encode it is as +a string +comprised +of +$\, \lceil \, log_{\, 32 \,}(i+1) \, \rceil ~+~1~$ bytes, where the +first byte is the ``$\, \hat{V} \,$'' symbol and the remaining bytes +encode +i as a base-32 number. +% with the convention that the lead bit in each +%byte's 6-bit sequence is ``0''. +The same convention will be used to denote the presence of +the i-th parameter $~u_i~$ +except its first byte will be the ``$\, \hat{U} \,$'' symbol. + + + +Our notation has employed {\it two types} of +parenthesis symbols because the first pair of +parenthesis symbols will have their usual meaning in punctuating a +mathematical +sentence, whereas the latter pair of symbols + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ +will {\it separate} the individual sentences in +a Semantic Tableaux proof tree. For example, +consider a tree which stores +1) the sentence $~\psi_1~$ as its root, 2) +the sentences $~\psi_2~$ and $~\psi_3~$ as the root's children, and 3) +$~\psi_4~$ as the child of $~\psi_3.~$ There are several +possible notation conventions for using the + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ symbols +to encode a Semantic Proof tree. +Our encoding +convention will +presume +%be that +$~\psi_i~$ +is an ``ancestor'' of $~\psi_j~$ {\it if and only if} the range beginning +with the +parenthesis to $\psi_i$'s immediate left and continuing +to the matching right parenthesis includes +$~\psi_j.~$ +The example of our 4-node proof tree is thus +encoded as: +\begin{equation} +\label{paren} + ~~\underline{\, ( \,}~~ \psi_1 + ~~\underline{\, ( \,}~~ \psi_2~ + ~\underline{\, ) \,}~ + ~~\underline{\, ( \,}~~ \psi_3 + ~~\underline{\, ( \,}~~ \psi_4~ + ~\underline{\, ) \,}~~ \underline{\, ) \,}~~ \underline{\, ) \,}~ +\end{equation} + + +The preceding paragraph summarized our method for +encoding semantic tableaux proofs. Its +generalization +for +the +encoding of \txl{1} proofs is +straightforward. Thus if + $~p_1,p_2,...p_n~$ +collectively constitute +a list of semantic tableaux proofs +then the + natural concatenation +of their byte strings will be the corresponding + \txl{1} +proof. + +This ``Optimally Linearly Compressed'' encoding scheme +is +%noteworthy +essential +because all the core axiom systems, employed +in this article, are Type-A formalisms, that recognize Addition +but not Multiplication as a total function. If such formalisms +were less than optimally compressed then our main theorems +would lose relevance because the formalization +of +unnecessarily expansive encodings would be awkward +in the context of the slow growth properties of +Type-A formalisms. Thus, +our results carry much greater significance when their +% it is useful that our +encodings +of a proof satisfy the maximal compression properties, +% outlined in the first paragraph of +%that are +defined in +this appendix. + + +%% +%% This byte-styled encoding method is approximately analogous +%% to what Wilkie-Paris \cite{WP87} have called +%% a {\it natural B-adic} encoding or a similar +%% counterpart in the H\'{a}jek-Pudl\'{a}k textbook +%% \cite{HP91}. Such +%% compressed encodings are +%% considered to be more +%% meaningful and efficient than an uncompressed encoding method, +%% using say a Prime Number decomposition scheme \cite{Me97} +%% (because the latter has an unnecessarily long bit-length). +%% All our theorems would also be +%% valid for uncompressed +%% encoding methods. +%% However, they are more meaningful when one uses an +%% efficiently compressed +%% B-adic encoding method. +%% +%% %\newpage +%% + + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + + +\section*{Appendix C: Formal Encoding of +%Statmenent \eq{group3}'s +the +Group-3 Axiom} + +Let us recall +%that +Appendix A +reviewed the definition of +a +semantic tableaux +and \txl{1} + proof, + and Appendix B formalized the +encodings +of such proofs. The goal of this appendix +will be to summarize the methodology +%% \cite{ww5} +%% that was +used to define +Statmenent \eq{group3}'s Group-3 +axiom +in \cite{ww5} . + +%%% Passive Voice change in above sentence much +%%% better because it understates my use of \cite{ww5} . + + +%% {\bf More Detailed Description of the Group-3 Axiom:} $~$ +%% A formal description of +%% IS$_D(A)$'s +%% Group-3 axiom is more complicated than the abbreviated +%% descriptions given either by +%% Sentence$~*~$ or by \ep{group3}'s analog. +%% The +%% main added complication is because +%% the Group-3 axiom declares the consistency of +%% a formal set of axioms that includes ``itself'' +%% (in the words of Sentence$~*~).~$ +%% As was noted in Section 1, the notion of an +%% axiom including +%% ``itself'' when it refers to the consistency +%% of an axiom schema dates back to Kleene's 1938 paper \cite{Kl38}. +%% However, Kleene's abbreviated +%% description is insufficient to establish that +%% \ep{group3} can be encoded precisely as +%% a +%% $\Pi_1^*$ sentence. The next two paragraphs will +%% explain how this can be done. + +Let + UNION($A$) denote the union of IS$_D(A)$'s Group-Zero, +Group-1 and Group-2 axioms. +It will be useful to employ the following notation: +\begin{description} +\item[ i] $\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)$ +will denote a formula designating +that $~p~$ is a proof of the theorem $~t~$ from the axiom +system UNION($A)$ using the deduction method $~D.~$ +\smallskip +\item[ ii] +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$ +will be a formula stating that +$~p~$ is a proof +(using the deduction method $~D~)~$ + of +a theorem $~t~$ +from the union +of the axiom system +UNION(A) with the added axiom +sentence specified by the integer +$\, h \,$. +\smallskip +\item[iii] + $\mbox{Subst} \, ( \, g \, , \, h \, )$ will denote +G\"{o}del's +classic substitution formula --- which yields TRUE when $\, g \,$ +is an encoding of a formula +and $\, h \,$ is an encoding of a sentence +that replaces all occurrence of free variables in $\, g \,$ with +% the formally +an +encoded term +% of +$~\underx{g}~$ +(that designates $g$'s G\"{o}del number.) +\smallskip +\item[ iv] +$\mbox{SubstPrf}_{~UNION(A)}^D~( \, g \, , \, t \, , \, p \,)$ +will denote the natural +hybridizations of the constructs from Items (ii) and (iii) +which yields a Boolean value of TRUE exactly when there +exists some integer $~h~$ +simultaneously +satisfying +{\it both} +the conditions + $\mbox{Subst} \, ( \, g \, , \, h \, )$ and +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$. + +\end{description} +Each of (i)--(iv) +can be encoded as $\Delta_0^*$ formulae. +Thus, Appendices C and D of \cite{ww1} +%% thus, + explained how +the first three of these predicates can receive + $\Delta_0^*$ encodings when one applies +the theory of LinH functions +\cite{HP91,Kr95,Wr78}. +Hence, \eq{encode} illustrates +one possible $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{~UNION(A)}^D \,( g , t , p )$'s +graph. (It is +equivalent to +the statement +$~$``$~\exists ~h~[~\mbox{Subst} ( g , h )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D( h , t , p )\, ] \, \,$''$,~$ + but \eq{encode} is + a $\Delta_0^*$ formula --- {\it unlike} the quoted +expression.) +\begin{equation} +\label{encode} +\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)~~~\vee~~~\exists ~h\leq p +~~[~ \mbox{Subst} \, ( \, g \, , \, h \, )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)~] +\end{equation} + +Let us recall that +$\mbox{Pair}(x,y)$ is a $\Delta_0^*$ sentence +specifying that + $~x~$ +and $~y~$ +are +the encodings of + a $\Pi_1^*$ +and $\Sigma_1^*$ sentence, +that are logical negations of each other. +Using + \eq{encode}'s + $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{UNION(A)}^D( g , t , p )$, +we can now explain +how +statement +\eq{group3}'s Group-3 Axiom can +be formally encoded. +Let +$~\Gamma(g)~$ +denote \ep{encode2}'s formula, +% and let + $~n~$ denote $~\Gamma(g)$'s +G\"{o}del number +and $\underx{n}$ +denote a term encoding $n$ in the U-Grounding language. +$~\,$Then +it will turn out that $~$``$~\Gamma(~ \underx{n}~)~$''$~$ +will be a $\Pi_1^*$ sentence +that is equivalent to + this Group-3 axiom. +\begin{equation} +\label{encode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , y , q ) \,] +\end{equation} +More precisely, \eq{newencode2} formalizes the encoding +of + $~$``$~\Gamma(~ \underx{n}~)~$''. +\begin{equation} +\label{newencode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , y , q ) \,] +\end{equation} +%In particular, +Thus, +if we view +$~~$``$~\mbox{SubstPrf}_{~UNION(A)}^D~( \, + \underx{n} \, , \, t \, , \, p \,)~$'' +in \eq{newencode2} +as our formal method of +encoding the concept that was previously informally +called +``$~\mbox{Prf}~_{\mbox{IS}_D(A)}(t,p)~$'' +by Statement \eq{group3}, +then \eq{newencode2} amounts to +the formal encoding of +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration. + +\bigskip + +{\bf Reminder about +the Significance of + \eq{newencode2}'s Encoding :} +The preceding construction +%shows +had showed +merely that it is possible +to encode +Sentence +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration +in a well-defined manner as a $\Pi_1^*$ +sentence. +It does not answer the more subtle question about whether or not +its +{\it ``I am consistent''} axiom declaration +holds +true + under the Standard model. +%of the natural numbers. +As we have noted before, +most analogs of +%the above sentence +\eq{newencode2} +produce false statements +%fail to hold True +under the Standard Model +because a conventional G\"{o}del-like +diagonalization argument will imply +that +most deduction methods $D$ will produce +%their resulting +axiom systems +$\mbox{IS}_D(A)$ +that are + inconsistent. + +\medskip + +The reason for our +particular +interest in +\eq{newencode2}'s +formal encoding is that +Theorems \ref{ttt1} and \ref{ttt2} +indicate that $\mbox{IS}_D(A)$ +is +%indeed +consistent when $D$ denotes +either the semantic tableaux or \txl{1} +deduction methodologies. Thus +\eq{newencode2}'s +Fixed-Point construction should be seen as a +methodology that has +%limited-but-subtle +limited applications, +but which is also +quite helpful (when it is feasible). + +%quite significant. +\end{document} + diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/rejected-wolic b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/rejected-wolic new file mode 100644 index 0000000..38afa22 --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/rejected-wolic @@ -0,0 +1,4931 @@ +%% suny feb 11 noon removed bib + +% home 2014 Feb 9 9.6 -3pm old title with key words and bibliog added + +%% NEED to do SPELL + +%% godel t0 goedel and spell + +%%% home jan17 8.31 am + +%%% suny jannary11 spell 6pm + +% home 2015 january 10 7 am -minor amendment while listening Sinatra + +% home 2015 january 4 1.1 pm + +% home 2015 january 3 2.3 pm abstract and new-bib; jan4 3,1am reformat + + +%% 2014 home march 29 8.5 pm +%% AFTER PAPER SUBMITTED CHANGED LAST paragraph + +%% 2014 home march 28, 4.1 am suny 10.1 am changed 7 -10 to 6 -10 + +%IMPORTANT REMINDER Long Paper should prove Theorem 3 for D= sem tab + +%\documentclass[12pt]{article} +%\documentclass[10pt]{article} +%\documentclass[11pt]{article} +\documentclass[11pt]{article} + + + + + + + + +\usepackage{amssymb} + + + +\addtolength{\oddsidemargin}{-0.9in} + +\setlength{\textheight}{9.0 in} + + +\setlength{\textwidth}{6.5 in} +\setlength{\textwidth}{6.6 in} +\setlength{\textwidth}{6.4 in} + + + +% \addtolength{\topmargin}{-.5in} +% \addtolength{\topmargin}{-.9in} + \addtolength{\topmargin}{-.6in} + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +\newtheorem{corollary}{Corollary} +\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} + +%%% changed to double numbers + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + +\def\iii{IS$_D(\aaa)$} +\def\I2{IS$^{\#}_D(\beta)$} +\def\ik3{IS$^{\#}_D(\beta_{A,i})$} + +\def\js{IS$_D(A^*)$} +\def\ns{IS$^{\#}_D(\beta^*)$} + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + +%% +%% \title{ +%% %\Large +%% On the +%% %Broader +%% Epistemological +%% Significance of +%% Self-Justifying Axiom Systems +%% from a Semantic Tableaux Perspective} +%% + + + + +% old title is + + \title{ +%\Large +On the Broader +Epistemological +Significance of +Self-Justifying Axiom Systems} +% from the Perspective of Analytic Tableaux} + + + + + + + + + + + + + + + + + + + + + + + + + + +\def\aaa{A} +\def\ccc{Class} + + + + + + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + + + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{\normalsize This research +was partially supported +by the NSF Grant CCR 0956495. +\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + + + + +\date{State University of New York at Albany} + +\maketitle + + \setcounter{page}{0} + \thispagestyle{empty} + + + +\begin{abstract} +\large +\baselineskip = 1.5 \normalbaselineskip +This article will be a continuation of our +research into self-justifying +systems. +It will introduce +several +new theorems +(one of which +will transform our previous infinite-sized +self-verifying +logics +into formalisms +or purely finite size). +It will explain how self-justification +is useful, even when the Incompleteness +Theorem +clearly +does sharply +limit its +scope. +\end{abstract} + + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +{\large +{\bf Keywords and Phrases:} +G\"{o}del's Second Incompleteness Theorem, Hilbert's Second +Open Question, Semantic Tableaux Deduction, + Consistency.} + + +%% +%% \begin{quote} +%% %{\bf $~~~~$ Detailed Abstract (as requested by Call for Papers):} +%% {\bf $~~~~ $ Abstract:} +%% $~$ +%% This article will be a continuation of our research into self-justifying +%% systems. It will introduce several new theorems and then explore their +%% philosophical significance. Its two specific goals will be to: +%% \bed +%% \item[ A. ] +%% Explain how to transform our prior results about infinite-sized +%% self-verifying axiom systems into tighter results about axiom +%% systems of purely finite cardinality. +%% \item[ B. ] +%% Explain how self-justifying axiom systems are useful {\it even when +%% the Second Incompleteness Theorem specifies limits for their reach.} +%% In particular, this second part of our +%% research +%% %results +%% discourse +%% will explain how +%% self-justification is related to open questions and conjectures that +%% G\"{o}del and Hilbert raised in 1926 and 1931. +%% \ennd +%% \end{quote} + +%% +%% Our discussion will have a more philosophical and easier-to-comprehend tone +%% than the more mathematically styled presentation in our prior published +%% papers. +%% % +%% %Our discussion will have a more philosophical and easier-to-comprehend tone +%% %than the more mathematically styled in our prior published papers. +%% %% +%% %% The discussion in this article will have a more philosophical and +%% %% easier-to-comprehend tone than the mostly mathematical discourse in our +%% %% prior published papers. Its +%% %% +%% Its +%% concluding section will offer a new +%% interpretation of the Second Incompleteness Theorem, where G\"{o}del's +%% historic result is taken as being {\it robust and ubiquitous} from a purist +%% theoretical perspective, while +%% % still +%% permitting enough wiggle room to +%% explain how humans gain the {\it psychological motive} to cogitate in +%% applications-oriented engineering-style environments. + + + + +\normalsize + + + + +\baselineskip = 1.5\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\fgf {\baselineskip = 1.3 \normalbaselineskip } + + + +\bbint + + + + +\normalsize +%% \LARGE\baselineskip = 1.1\normalbaselineskip +\baselineskip = 1.2\normalbaselineskip + +%\vspace*{- 3.0 em} + +\newpage + + +\def\J1{IS$_D(~\cdot ~)$} + + + +\def\K1{IS$_D(~\cdot ~)$} +\def\J2{IS$^{\#}_D(~\cdot ~)$} + + +%%% ssssssssssssss +%% TEXT IS HERE + + \parskip 5 pt + +%%%%%\large + \baselineskip = 1.235 \normalbaselineskip + +\large + +\baselineskip = 1.6 \normalbaselineskip +\baselineskip = 2.0 \normalbaselineskip +\normalsize \baselineskip = 1.22 \normalbaselineskip + +\def\ssspace{\normalsize \baselineskip = 1.24 \normalbaselineskip } + +% \def\ssspace{\normalsize \baselineskip = 2.1 \normalbaselineskip } + +\ssspace + + \parskip 5 pt + +\section{Introduction} +\label{pppp1} + + +G\"{o}del's Incompleteness Theorem +has two parts. +Its +first half indicates no decision +procedure can identify +all of +arithmetic's + true statements. +Its + ``Second Incompleteness'' +result + specifies +sufficiently strong +logics +{\it cannot} verify their own consistency. +G\"{o}del +was careful to insert +a + caveat +into +his historic paper +\cite{Go31}, +indicating +a +{\it +diluted} +form +of Hilbert's Consistency Program +might +% have some success: +reach some +levels of +partial + success: +\begin{quote} +$*~$ +% (G\"{o}del \cite{Go31} 1931): +{\it ``It must be +expressly +noted +Proposition XI +(e.g. G\"{o}del's +``Second'' Incompleteness +Result) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and { there might +conceivably be finite proofs} which cannot +be stated in P or in ...''} +\end{quote} +Some +scholars +have interpreted +$\,*\,$ +as, possibly, +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialetica interpretation. +On the other hand, +the Stanford's Encyclopedia's +entry about G\"{o}del +quotes him, +in its + Section 2.2.4, +stating +he was hesitant to +view the +Second Incompleteness Theorem + as +fully +ubiquitous, until +learning +of Turing's +work. +Moreover, +Yourgrau \cite{Yo5} +states +von Neumann +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +Also, it is known + \cite{Da97,Go5,Yo5} +that +G\"{o}del + initially +presumed the +second theorem +was false, before proving his stunning +result. +%hhhh + + + +\smallskip + + + +In any case +several + year after he wrote $*$'s +initial + statement, +G\"{o}del gave a +1933 + lecture \cite{Go33}, +where he +told his audience +that +Hilbert's +initial +1926 objectives, summarized +formally +by + $**$ below, +had + {\it ``unfortunately''} +no +{\it + ``hope of succeeding along''} +its originally intended plans. +\begin{quote} +$**~$ (Hilbert \cite{Hil26} 1926): +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding itself.''} +\end{quote} + +Our research, in both the current article +and +the +prior papers +\cite{ww93}-\cite{ww14} +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}, +was stimulated by the prospect that we find $**$ enticing, +even though the Second Incompleteness +Theorem +{\it unequivocally} + demonstrates that logics +{\it cannot} recognize +their own consistency +{\it in a robust sense.} +Accordingly, we have studied +{\it both} generalizations and boundary-case exceptions +for the Second Incompleteness Theorem +in +\cite{ww93}-\cite{ww14}. +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +The current article will seek to +{\it both} strengthen these prior +results, +in the context of axiom systems +with +{\it + strictly finite cardinalities}, +and to also provide a more intuitive explanation of the +meaning +behind +\cite{ww93}-\cite{ww14}'s +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}'s +results. + +The thesis of this article will be delicate +because there can be no doubt that + the Second Incompleteness +Theorem is +sharply robust, +when viewed +from a + conventional +purist +mathematical + perspective. +On the other hand, we will argue that there are certain facets +of a ``Self-Justifying Logics'', that are tempting +under a hard-nosed +engineering perspective, +contemplating + sharply + {\it curtailed forms} of Hilbert's goals. +These results will be + fragile +{\it but +not +fully +immaterial.} + + +%bbbb +In other words, this +article will offer a somewhat complicated +2-part interpretation of the Second Incompleteness Theorem +where: +\bee +\item +The Second Incompleteness Theorem is seen as +being 100 \% +robust from a mathematical perspective +because of the +% ubiquitous and +widely +encompassing nature of the 1939 +Hilbert-Bernays analysis \cite{HB39} (centering around +their three +well-known +``Derivability Conditions'' \cite{Mend} ). +\item +On the other hand, our discourse +will partially +appreciate Hilbert's reluctance +to fully embrace the Second Incompleteness Theorem, +despite his +joint +work with Bernays \cite{HB39} +generalizing the Second Incompleteness Effect. +(This is +because it is awkward to explain how human beings can +% undeniable +acquire the mental energy +for motivating themselves to cogitate, +without possessing some type of instinctive faith +in their own self-consistency.) +\ene +%It is in the context where +Thus, +the current article + will seek to +separate a {\it ``mathematical''} from +what perhaps should be +{\it ``engineering-style''} + appreciation +of one's +internal consistency. We will seek to define and explore the +latter +%nature of this +%engineering notion in the current article +(with the hope that it will help formalize how future +21st century computers can benefit from its engineering-style +%% notion +perspective, +while still respecting +%%% at the same time +the strict prohibitions formalized by +G\"{o}del's millennial result.) + + +As the reader examines this paper, it should be kept in mind +that +it does +focus on +% the properties of +semantic tableaux +deduction (similar to the earlier +% more abbreviated +discussion that had +appeared in \cite{ww14}'s more abbreviated +conference-style summary of our results). +A second paper, currently under preparation, +will examine Hilbert-style deductive systems (whose +self-justification properties +are partially analogous and partly +quite +different from +% our +tableaux-style systems). +The combination of these two results will formally +define both the potential of self-justifying logics +and the limitations which the Second Incompleteness +Theorem imposes upon them. + + +%% +%% In other words, the theme of this article will be that conventional +%% interpretations of the Second Incompleteness Theorem are +%% certainly 100 \% +%% correct from a mathematical perspective. +%% as foreseen very rigorously +%% as early as 1939 +%% by Hilbert-Bernays \cite{HB39}. +%% This is because +%% no formalism can +%% recognize its own consistency in a very robust +%% strictly +%% %purely +%% mathematical +%% respect. +%% On the other hand, it also +%% seems +%% evident +%% %% appears apparent +%% % undeniable +%% that +%% human beings +%% will +%% %would +%% find it awkward +%% %be unable +%% to acquire the mental energy +%% for motivating themselves to cogitate, +%% without possessing some type of instinctive faith +%% in their own self-consistency. +%% This perhaps should be +%% called an +%% % {\it quasi- +%% {\it engineering=style appreciation} of one's +%% internal consistency. We seek to define and explore the +%% nature of this +%% engineering notion in the current article +%% (with the hope that it will help formalize how future +%% 21st century computers can benefit from this engineering-style +%% notion while, of course, respecting +%% %%% at the same time +%% the strict prohibitions formalized by +%% G\"{o}del's millennial result.) + + + +\section{Background Setting} +\label{pppp2} + + +Let + $( \alpha , d )$ +denote any axiom system +and deduction method satisfying +the +simple {\bf ``Split Rule''} +below$\,$\footnote{Our + ``Split Rule'' +is the trivial requirement + that all the axiom sentences in +$~\alpha~$ are +technically +{\it proper axioms}, and + that +deduction method $~d~$ is +required +to include +{\bf BOTH} a finite number of rules of inference +and +whatever ``logical axioms'' are needed +{\it (if any ? )} +by $\,d$'s methodology. +(This +trivial +Split-Rule +notation convention will +help us to provide a +%%hhhh +precisely formalized statement of our results. + .)}. +This pair +will +be called {\bf ``Self Justifying''} when: +\begin{description} + \item[ i ] one of $ \, \alpha \,$'s theorems +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +second + $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +requirement. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +\begin{quote} +$\bullet~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of the +system $ \alpha $ +with {\it this} +sentence ``SelfRef$(\alpha,d)$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +noted +how +to +encode +rough + analogs of + ``SelfRef$(\alpha,d)$''. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii's +requirement. + + +%% hhhh +This problem arises in +many +contexts besides + G\"{o}del's +paradigm, +where $\alpha$ was an extension of Peano Arithmetic +(see +\cite{Ad2,AZ1,BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Ko6,KT74,Lo55,Pa71,Pa72,Pu85,Pu96,Ro67,Sa12,So94,Sv7,Vi5,WP87,ww2,wwlogos,ww7}). +Such results formalize +paradigms where +self-justification is infeasible, +due to diagonalization issues. +(It should, +perhaps, + be added that among this +lengthy list of articles, +it was especially +\cite{Ad2,Bu86,Go31,Lo55,Pu85,So94,WP87}'s +incompleteness results that +influenced our +work in +\cite{ww93}-\cite{ww14}.) +% in \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}.) +In any case, the main point is that +most +logicians +have +hesitated +to + employ +an +analog of a + SelfRef$(\alpha,d)$ + axiom +because + $ \alpha^d = \alpha+$SelfRef$(\alpha,d) $ +is +typically +inconsistent. + + + + + + + + + +Our research +in \cite{ww93,ww1,ww5,ww6,wwapal} +focused on +paradigms +where +self-justification is feasible. +It +involved weakening +the properties +a +logic +can prove +about +addition and/or +multiplication +(to avoid +potential +difficulties). +To be more precise, let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote +3-way predicates +specifying +$x+y=z$ and +$x*y=z$. +Then a +logic +will be said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} iff it +includes +sentences +1-3 as axioms. + +\vspace*{- 0.4 em} +{\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + +\vspace*{- 1.2 em} + +A +logic +$\alpha$ +will be called +{\bf Type-M} iff it contains +\ref{totdefxs}-\ref{totdefxm} +as axioms, +{\bf $~$Type-A} iff it contains only +\eq{totdefxs} and \eq{totdefxa} as axioms, +{\bf $~$Type-S} iff it contains +only \eq{totdefxs} as an + axiom, and +{\bf $\,$Type-NS$\,$} iff it contains +none of these axioms. +The relationship of these constructs to +self-justification +is explained by +items (a) and (b): +\bed +\item[ a. ] +The existence of +Type-A systems that can recognize +their own +consistency under semantic tableaux deduction, +while proving +analogs of +all +Peano Arithmetic's + $\Pi_1$ theorems (in a slightly different language), +were +%%hhhh +demonstrated in +\cite{tab2,ww5}. +Also, \cite{ww1,wwapal} noted that +some +specialized +forms +of +Type-NS systems +can +likewise +recognize their +own Hilbert consistency. + + + +\item[ b. ] +The above +evasions of the Second Incompleteness +Theorem are known to be near-maximal in a mathematical sense. +This is because +the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} implied no +natural +Type-S system can recognize its Hilbert consistency, +and Willard +subsequently + \cite{ww2,ww7,ww9} +hybridized their formalisms with some techniques of +Adamowicz-Zbierski +\cite{Ad2,AZ1} +to establish that most +Type-M systems cannot recognize their +own semantic +tableaux consistency. +\ennd + + + +Other +fascinating +efforts to +evade the Second Incompleteness Theorem +have used +the Kreisel-Takeuti ``CFA'' +system \cite{KT74} +or the +the {\it interpretational framework} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to our approach +because they +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Instead, CFA uses the +special +properties of ``second order'' generalizations of Gentzen's +{\it cut-free} +Sequent Calculus, +and +the +interpretational approach +formalizes how some systems +recognize their + Herbrand consistency +on localized sets of integers, +which +unbeknownst to +themselves, +includes all +integers. +(These alternate results are interesting but +unrelated to our approach.) + + + + + + + +\section{Defining Notation and Earlier Results} +\label{pppp3} + +\label{sect3} + + + +A function $F $ +will be called {\bf Non-Growth} +iff +$ F(a_1...a_j) +\leq Maximum(a_1...a_j)$ +holds. +Six examples of +non-growth functions are +\bee +\small +\parskip 0pt +%hhhh +\item +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +\item +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +\item +$Maximum(x,y),$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +\item +$\,Root(x,y) \, = \, \lfloor \, x^{1/y} \, \rfloor~$. and +\item$Count(x,j)$ designating the number of ``1'' bits +among $ x$'s rightmost $ j $ bits. +\ene +The term +{\bf U-Grounding Function} +referred in \cite{ww5} to +a set of +primitives, +which included the +preceding +functions plus the {\it growth operations} of addition and +{\it Double$(x)=x+x$}. +Our language $L^*$ was +built +out of these +symbols, +plus the primitives of +``0'', ``1'', + ``$ \, = \, $'' +and ``$ \, \leq \, $''. + + + + +In a context where $~\, t \, ~$ is any term in \cite{ww5}'s +language $L^*$, +$\,$the quantifiers in +%% the wffs +$~ \forall ~ v \leq t~~ \Psi (v)~$ and $~ \exists ~ v \leq t~~ \Psi (v)$ +were called {\it bounded +quantifiers}. +Any formula in + $L^*$, +all of whose +quantifiers are bounded, was called +a $\Delta_0^*$ formula. +The $~\Pi_n^{* }~$ and $~\Sigma_n^{* }~$ formulae +were +then defined by the +usual +rules that: +\bee +\item +Every +$\Delta_0^*$ formula is considered to +be +``$~\Pi_0^{* }~$'' and +also + ``$~\Sigma_0^{* }~$''. +\item +A +wff +is called + $ \,\Pi_n^{* } \,$ +when it is encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ with +$\Phi$ being $\Sigma_{n-1}^{* }$ +\item +Also, +a wff +is called + $\Sigma_n^*$ +when it is encoded as +$\exists v_1 ..\exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{* }$. +\ene + +%%bbb +Our articles \cite{ww93,tab2,ww5} used the symbol $~D~$ to denote +a deduction method. +They focused mostly around the +semantic tableaux deductive methodology, +whose formal definition can be found in the textbooks +by Fitting and Smullyan +\cite{Fi90,Smul} and whose +definition is also reviewed +by Appendix A of the current article. + +%%bbb +Our articles \cite{wwlogos,ww5} +also considered an improved faster deductive technology, + called +{\bf Tab-k + deduction}, that +consists of a +speeded-up version of a +tableaux, +which +permits a +{\it limited analog} of +Gentzen-style deductive +cuts +for $\Pi_k^*$ and $\Sigma_k^*$ formulae. +Thus, if + $~H~$ +denotes a sequence of ordered pairs +$~(t_1,p_1),~(t_2,p_2),~...~(t_n,p_n),~$ +where $~p_i~$ is a Semantic Tableaux proof of the theorem $~t_i,~$ +then $H$ +has been + called a +{\bf ``Tab-k +Proof''} +of a theorem $~T~$ +from $\alpha$'s axioms + iff $~T=t_n~$ +and also: +\begin{enumerate} +\item +Each of the ``intermediately derived theorems'' +$~t_1,t_2, \, ... \, , t_{n-1}~$ +have a complexity no greater than that of +either a $\Pi_k^*$ or $\Sigma_k^*$ sentence. +\item +Each +proper axiom in $ p_i$'s +proof +comes +either +from $\alpha$ or is + one of $ t_1,t_2, \, ... \, , t_{i-1} $. +\end{enumerate} +Thus, a +Tab-k proof is essentially a generalization of a classic +semantic tableaux proof that essentially owns the equivalent of +an +extra specialized modus ponens rule for + $\Pi_k^*$ and $\Sigma_k^*$ sentences. + +Let +us say +an axiom system $\alpha$ +has a {\bf Level-J Understanding} +of its own +consistency +under a deduction method $D$ +iff $\alpha$ can prove that there exists no proofs +using +its axioms and $D$'s deduction +of both a +$\Pi_J^*$ theorem and its negation. +In this notation, items A and B summarize +\cite{sp0,ww2,wwlogos,ww5,ww7}'s +main +results: +\bed +\item[ A. ] + For +any +axiom system $A$ using $L^*\,$'s + U-Grounding language, +\cite{ww5} +showed its +IS$_D(A)$ formalism +could prove +all $A$'s $\Pi_1^*$ theorems and simultaneously +verify its +Level-1 +consistency under +\txl{1} deduction. + +\smallskip + +\item[ B. ] +Two negative results, tightly complementing +item A's +positive result, +were exhibited +in +\cite{sp0,ww2,wwlogos,ww7}. The first +was that \cite{sp0,ww2,ww7} showed +most +systems +are +unable to verify their +Level-0 consistency under +semantic tableaux +deduction, + when they included +statement +\eq{totdefxm}'s ``Type-M'' +axiom that multiplication +is a total function. Moreover, \cite{wwlogos} +offered an alternate +form +of this + incompleteness +result, +showing statement +\eq{totdefxa}'s +{\it +far weaker} +Type-A +systems +cannot +verify +their Level-0 consistency under +\txl{2} deduction. +\ennd + + + + +The contrast between these +positive and negative results +has + led to our conjecture that +automated +theorem provers +are likely + to +eventually +achieve +a fragmentary part of the ambitions +that were +suggested by Hilbert +in +$**\,$. +This is because +the question of whether a +formalism can support an +{\it idealized Utopian} +conception of +its own consistency is {\it +different} from +exploring the degrees to which +theorem-provers +can possess +a {\it fragmentary +knowledge} of +their own +consistency. +The +Incompleteness Theorem +has demonstrated +an Utopian idealized form of self-justification +is unobtainable, +but our research has found some +diluted +cousins +of this construct are +feasible +%%% hhhh +and warrant examination. + + +%%%bbbbb +In summary, +%as a reader examines the remainder of this article, +it should be kept in mind, +during the remainder of this article, +that the Hilbert-Bernays Derivability Conditions +\cite{HP91,HB39,Mend} +impose severe limits upon any evasion of +the Second Incompleteness Theorem. +% that are inexorable. +On the other hand, +it appears that a + human's + faith in his own consistency +is an essential +prequisite to gain the needed + psychological +motivation for +% cogitating. +stimulating cogitation? +% motivate to cogitate. +%cogitation, is also a non-trivial agent. +(This is why we suspect Hilbert was never willing +to concede that all facets of his consistency program +%would be +were +hopeless.) +A broad theme of this paper will, +% thus +thus, +be that it +is helpful to distinguish between the goals of +a +theoretical-oriented study of arithmetic from +that of +a more engineering-styled approach, +since the +Second Incompleteness Theorem is a perfect result +from the first perspective while it permits +for +% some +well-defined +limited-scale part-way exceptions from +the second vantage point. + +%% Above sentence replaces below + + +%% Our interest in +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% was +%% % stimulated by such +%% raised by these +%% considerations. + + +%% It is for this reason that +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% from the preceding two paragraphs, +%% warrant investigation. +%% +%are so important. + + +%% Their +%% two subtle contrasts will be our +%% main +%% focus +%% % of our attention +%% %in the remainder of this article. +%% in the rest of this article. +%% + + +\section{The IS$_D(A)$ Axiom System} +\label{pppp4} + + +\label{sect4} + +In a context where $~A~$ denotes any axiom +system using + $L^*\,$'s +U-Grounding language, IS$_D(A)$ +was defined +in \cite{ww5} +to be an axiomatic +formalism capable of recognizing all of +$A$'s $\Pi_1^*$ theorems and +corroborating +its own Level-1 consistency under $D$'s deductive method. +It +consisted of the +following four +groups of axioms: +\begin{description} +\item[Group-Zero:] +Two of the Group-zero axioms +did +% will +define +the +constant-symbols, +$\bar{c}_0$ +and $\bar{c}_1$, +designating the integers of 0 and 1. +The +Group-zero axioms +will +also define the +growth functions of addition and +$~Double(x) \, = \, x+x.~$ +The +net effect of these +axioms will be to set up a machinery to +define +any +integer +$~n \geq 2~$ +using fewer than +$3 \cdot \lceil \, $Log$~n~ \rceil \,$ +logic symbols. + + + + + +\item[Group-1:] +This axiom group +did +% will + consist of a +finite set of $\Pi_1^{*} $ sentences, denoted as $~F~$, which +can prove any $\Delta_0^*$ sentence that +holds true under the standard model of the natural numbers. +(Any finite set of +$\Pi_1^{*} $ sentences $~F~$ +with this property +may be used to define Group-1, +as \cite{ww5} noted.) + + + +\item[Group-2:] +Let $\ulxyz \Phi \urxyz$ denote +$\Phi$'s G\"{o}del Number, and +HilbPrf$_A(\ulxyz \Phi \urxyz,p)$ denote a +$\Delta_0^{*} $ formula indicating +$~p~$ is a +Hilbert-styled proof of +theorem $~\Phi~$ from +axiom system $A$. +For each $\Pi_1^{*} $ sentence $\Phi$, the +Group-2 schema +of \cite{ww5} +did +% will + contain an axiom of +form \eq{group2}. +(Thus IS$_D(A)$ can trivially prove + all $A$'s +$\Pi_1^{*} $ theorems.) +\begin{equation} +\forall ~p~~~\{~ \mbox{HilbPrf$_A(\ulxyz \Phi \urxyz,p)$} + ~~ +\Rightarrow ~~ \Phi~~\} +\label{group2} +\end{equation} +\item[Group-3:] +This final part of the IS$_D(\aaa)$ +essentially represented +% will be +a +self-referencing +$\Pi_1^*$ +axiom, +indicating +IS$_D(\aaa)$ meets +\textsection 3's criteria of being +``Level-1 consistent'' +under deductive method $D$. +It +amounts, +%is, +thus, +to the following declaration: +\begin{quote} +\# $~${\it No two +proofs exist +for +a $\Pi_1^{*} $ sentence +and its negation, when +$D$'s deductive method is applied to an axiom system, +consisting of +the {\it union} +of +Groups 0, 1 and 2 with {\bf $\,$this sentence$\,$} +(looking at itself).} +\end{quote} + +One encoding of \#, +$\,$as a self-referencing +$\Pi_1^{*} $ +axiom, +appears + in +\cite{ww5}. +%% hhhh0000000000 +Thus, +the +below +sentence +\eq{group3} +represents +\cite{ww5}'s +$\Pi_1^{*}\, $ styled +encoding for$~$ + \# +in a context where: +\bed +\item[ i. ] +$~~\mbox{Prf} \, _{\mbox{IS}_D(A)}(a,b) \, $ is +a + $\Delta_0^{*} $ formula +indicating +that +$ \, b \, $ is a proof + of a theorem $\, a\,$ +under + $\mbox{IS}_D(A)$'s axiom system +and $D$'s deduction method, +$\,~$and +\item[ ii. ] +$~~$Pair$(x,y)$ is a $\Delta_0^{*} $ formula +indicating +that $ \, x \, $ is a + $\Pi_1^{*} $ sentence +and +% that + $ \, y \, $ +represents +$ \, x \,$'s negation. +\end{description} +%% A summary of the formal techniques that +%% \cite{ww5} used to encode +%% sentence +%% \eq{group3} is provided in Appendix B. +\end{description} +\begin{equation} +\forall ~x~\forall ~y~\forall ~p~\forall ~q~~~~ \neg ~~ +[~~ \mbox{Pair}(x,y)~ \wedge ~ +~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(x,p)~ +\wedge ~ ~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(y,q)~ ] +\label{group3} +\end{equation} + +\begin{remark} \label{remc} +\rm +A +fully formal +summary of the techniques that +\cite{ww5} used to encode +%the +sentence +\eq{group3} is provided by +the combination of Appendices B and C. +The former appendix summarizes our +methods for generating the G\"{o}del numbers +of semantic tableaux and \txl{k} proofs +in an optimally compressed manner. +The latter appendix explores how +sentence +\eq{group3}'s self-referencing statement is precisely encoded. +\end{remark} + +{\bf Notation.} An operation $~I(~\bullet~)~$ that maps +an initial axiom system $\,\aaa \,$ onto an alternate +system $\,I(\aaa)\, $ will be called {\bf Consistency Preserving} +iff $\,I(\aaa)\, $ is consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers. In this +context, +\cite{ww5} demonstrated: + + +\begin{theorem} +\label{ttt1} +\label{thold} +Suppose +the symbol $D$ denotes either semantic +tableaux deduction or its \txl{1} generalization. +Then the IS$_D(~\bullet~)~$ mapping operation is consistency preserving +(e.g. +IS$_D(\aaa) $ +will be consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers). +\end{theorem} + +We emphasize +the most difficult part of \cite{ww5}'s +result was +neither the definition of its +IS$_D(\aaa) $'s axiom system nor the +$\Pi_1^*$ fixed-point + encoding of \eq{group3}'s Group-3 axiom. +Instead, +the key challenge + was the +confirming +of \thx{thold}'s +``Consistency Preservation'' +property. + + +The +confirming of +this +property +is +subtle +because its invariant breaks down when +$~D~$ is a deduction method only slightly stronger than +either semantic tableaux or \txl{1} deduction. +Thus, Pudl\'{a}k's and Solovay's +work \cite{Pu85,So94} +implies \thx{thold}'s analog fails when $D$ represents +Hilbert deduction, and \cite{wwlogos} showed its generalization + fails +even when $D$ represents \txl{2} deduction. + + + + + + + + +\section{A Finitized Generalization of \thx{thold}'s Methodology} +\label{pppp5} + + +\label{sect5} + +%%%mmmm +One +difficulty with IS$_D(\aaa)$ +was +is +that it +employed +an infinite number of different +incarnations of +sentence \eq{group2} +in its Group-2 scheme (since it contained one incarnation +of this sentence for each $\Pi_1^*$ sentence $\Phi$ in +$L^*\,$'s language). Such a Group-2 schema is awkward because +it simulates $A$'s +$\Pi_1^*$ +knowledge almost via a brute-force +enumeration. + + +Our Definition \ref{dd-is2} and Theorems +\ref{ttt2} and \ref{ttt3} will show how +to +mostly +overcome this problem by +compressing the infinite number +of +instances of sentence \eq{group2} in +IS$_D(\aaa)$'s Group-2 schema into +a purely finite structure. + +\smallskip + +\begin{definition} +\label{dd-is2} +\rm +Let $~\beta~$ denote any +finite set of +axioms that have + $\Pi_1^*$ encodings. +Then +\I2 +will denote an axiom system, +similar to IS$_D(\aaa)$, except +its Group-2 +scheme will employ $~\beta\,$'s set of axioms, +instead of using an infinite number of applications +of +statement \eq{group2}'s scheme. +(Thus, +the +{\it ``I am consistent''} statement +in \I2's Group-3 +axiom will be the same as before, except that +the {\it ``I am''} +fragment of its +self-referencing +statement +will reflect +these + changes in Group-2 in the obvious manner.) +\end{definition} + + + +\begin{theorem} +\label{ttt2} +Let + $D$ again denote either +semantic +tableaux +or \txl{1} deduction, +and $\beta$ again denote a set of +$\Pi_1^*$ axioms. +Then +\I2 +will be consistent whenever all +$\beta$'s axioms hold +true under the standard model. +(In other words, + \I2 +will satisfy an analog of \thx{ttt1}'s +consistency preservation property for IS$_D(\aaa) $.) +\end{theorem} + +%%bbbb +\thx{ttt2}'s +proof +is almost identical to +\cite{ww5}'s proof of \thx{ttt1}. +Its proof is too lengthy to repeat here. +Instead \textsection \ref{newppp9} +will +briefly summarize its +%% +%% provide +%% a +%% brief +%% %detailed +%% % an intuitive +%% summary +%% of the +%% formal +%% % germane +%% +proof. +This +abbreviated discussion +%% discourse +should be sufficient to explain +the gist behind the +proof's core +%needed +formalism, +%proofs, +without delving into +\cite{ww5}'s +full +%%%%% too many +%full +% formal +details. + +%%bbbb +Our next definition will enable us to formalize +the main application of +\thx{ttt2} that will be considered +here. +%during the present article. +It will essentially explain how +{\bf finite-sized} + self-justifying + logics + can provide an + {\bf infinite amount } + of + ``kernelized'' + $\Pi_1^*$ +styled +information. + + + +%%% It will. +%%% not be +%%% repeated in this extended abstract. +%%% Instead, +%%% this section +%%% will apply +%%% \thx{ttt2} +%%% to +%%% show how +%%% {\bf finite-sized} +%%% self-justifying +%%% logics +%%% can provide an +%%% {\bf infinite amount } +%%% of +%%% ``kernelized'' +%%% $\Pi_1^*$ information. +%%% + +\begin{definition} +\label{dkern} +\rm +Let +Test$_i(t,x)$ +denote any $\Delta_0^*$ formula, +and $~\ulcorner \Psi \urcorner ~$ denote +$\, \Psi\,$'s G\"{o}del number. Then +Test$_i(t,x)$ will be called a {\bf Kernelized Formula} +iff Peano Arithmetic can prove every $\Pi_1^*$ sentence +$~\Psi~$ satisfies \eq{testker}'s +identity: +\beq +\label{testker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +There are +infinitely +many + $\Delta_0^*$ predicates +Test$_1(t,x)$, Test$_2(t,x)$, Test$_3(t,x)$ ... +satisfying this kernelized condition +(one of which is illustrated by Example \ref{eex1}). +An enumerated list of all +the available kernels +is +called a {\bf Kernel-List}. +\end{definition} + +\begin{example} \label{eex1} \rm +The set of +true $\Sigma_1^*$ sentences is +r.e. +This +implies +there +exists a $\Delta_0^*$ formula, +called say Probe$(g,x)$, +such +that $~g~$ +is +the G\"{o}del number of +a $\Sigma_1^*$ statement that holds true in the Standard +Model +if and only if +%iff +\eq{e-probe} is true: +\beq +\label{e-probe} +\exists ~x~~~ \mbox{Probe}(g,x)~\wedge~ x \geq g +\enq +Now, let Pair$(t,g)$ denote a $\Delta_0^*$ formula +that specifies $~t~$ is the G\"{o}del number of +a $\Pi_1^*$ statement and + $~g~$ is +the $\Sigma_1^*$ formula which is its negation. +Then our notation implies +that + $~t~$ +is +a true + $\Pi_1^*$ statement +if and only if \eq{e-2probe} holds true: +\beq +\label{e-2probe} +\forall ~x~~~ +\neg~[~\exists ~g ~\leq~x~~~~~ \mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)~~] +\enq +Thus if +Test$_0(t,x)$ +denotes the $\Delta_0^*$ formula of +$~ \neg~[~\exists ~g \, \leq \, x~~ +\mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)]$, +it +is one example of what +Definition \ref{dkern} +would +call a +``Kernelized Formula''. +\end{example} + +\begin{definition} +\label{def3} +\rm +Let us recall +Definition \ref{dkern} +defined +{\bf Kernel-List} to be an enumeration of +all the +kernelized formulae +Test$_1(t,x)$, + Test$_2(t,x)$, Test$_3(t,x)...~$. +Assuming +Test$_i(t,x)$ is the $i-$th element in this +list +and +$\Psi$ is an arbitrary $\Pi_1^*$ sentence, +the +{\bf i-th Kernel Image} +of $\, \Psi \,$ + will be +defined as +the +following $\Pi_1^*$ +sentence: +\beq +\label{imagker} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +\end{definition} + +\begin{example} \label{eex2} \rm +The Definitions +\ref{dkern} +and \ref{def3} suggest that there is a + subtle relationship +between a sentence $~\Psi~$ and its $i-$th kernel image. +This is because +Definition \ref{dkern} +indicates that Peano Arithmetic can prove the invariant +\eq{testker}, indicating that + $~\Psi~$ +is equivalent to + its $i-$th kernel image. +However, a weak axiom system +can be plausibly uncertain about +whether this +equivalence +does formally hold. +This invariant is duplicated below: +\beq +\label{againtestker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq + +% equivalence holds. + +%mm% +Thus if a weak axiom system proves statement +\eq{imagker} (rather than $~\Psi~$), +it +%% may +will + not be able to equate these +two +results +(unless it is able to verify +\eq{againtestker}'s identity). +This problem will apply to \thx{ttt3}'s +formalism. +However, \thx{ttt3} will +% be +still +remain + of much interest +because \textsection \ref{pppp6} will +illustrate a +methodology that +can overcome +many of \thx{ttt3}'s limitations. +\end{example} + + + + + + + +\begin{theorem} +\label{ttt3} +Let $~A~$ denote any +system, +whose + axioms hold +true +in arithmetic's standard model, +and $~i~$ denote the index +of any of +Definition \ref{dkern}'s +kernelized formulae + Test$_i(t,x)$. +Then it is possible to construct a +finite-sized +collection of $\Pi_1^*$ sentences, called say + $\beta_{A,i}$, +where +\ik3 +satisfies the following invariant: +\begin{quote} +If $~\Psi~$ is one of the +$\Pi_1^*$ theorems of + $~A~$ +then \ik3 can prove +\eq{imagker}'s +statement + (e.g. it will prove the +``the $\, i-$th kernelized image'' +of +$~\Psi\,$). +\end{quote} +\end{theorem} + +\newpage + +\noindent +{\bf Proof Sketch:} +Our justification of +\thx{ttt3} will +use the following notation: +\bee +\item +Check$(t)$ will denote a $\Delta_0^*$ formula +that +produces a Boolean value of ``True'' when +$t$ represents the G\"{o}del +number of a $\Pi_1^*$ sentence. +\item + $~\mbox{HilbPrf}_A \,( t , q )~$ +will denote + a $\Delta_0^*$ formula that indicates +$~q~$ is a Hilbert-style proof of the theorem +$~t~$ from axiom system $~A~$. +\item +For any kernelized +Test$_i(t,x)$ +formula, GlobSim$_i$ +will +denote \eq{globsim}'s $\Pi_1^*$ sentence. +(It will be called $A$'s $i-$th +{\bf ``Global Simulation Sentence''}.) +\ene +\beq +\label{globsim} +\forall ~t~~ +\forall ~q~~ +\forall ~x~~\{~~ +[~~\mbox{HilbPrf}_A \,( t , q )~~ \wedge ~~ +\mbox{Check}(t)~~]~~~ +\Longrightarrow ~~~ +\mbox{Test}_i(t,x)~~~ \} +\enq + +%%mm +In this notation, +%%%the requirements of +\thx{ttt3} +shall +%will +be satisfied by any +version of the axiom system \I2, whose Group-2 schema $~\beta~$ +is a finite sized +consistent set of $\Pi_1^*$ sentences +that has +\eq{globsim} +as an axiom. +(This includes +the minimal sized such system, +% which we will +denoted as $~\beta_{A,i}~$, +that has only \eq{globsim} as an axiom.) +This is because +%Thus, +if +$\Psi$ is any +$\Pi_1^*$ theorem of $A$ whose proof +is denoted as $~\bar{p}~$, then both the +$\Delta_0^*$ predicates of +$\mbox{HilbPrf}_A \,( \ulxyz \Psi \urxyz , \bar{p} )$ and +$\mbox{Check}( \ulxyz \Psi \urxyz )$ +will hold true. +%are true. +Moreover, +IS$^{\#}_D$'s +%%%%%%%%%%%%%% \I2's +Group-1 axiom subgroup was defined so that +it can automatically prove all + $\Delta_0^*$ sentences that are true. +Hence, +%Thus, + \ik3 will + prove these two statements and +then automatically +%hence +corroborate (via axiom +\eq{globsim}) the further statement +of: +\beq +\label{interm} +\forall ~x~~ +\mbox{Test}_{\, i \,}(~ \ulxyz \Psi \urxyz ~,~x~ ) +\enq +%Hence +Thus +for each of the infinite number of $\Pi_1^*$ +theorems that $~A~$ proves, the above defined +formalism will prove a matching statement +that corresponds to +its +%% the + $\, i-$th kernelized image. $~~\Box$ + + +%% of +%% each +%% such proven theorem. +%% $~~\Box$ + +\section{ L-Fold Generalizations of \thx{ttt3} } +\label{pppp6} + + + + +\thx{ttt3} +is of +interest +because every axiom system $\,A\,$ +will have +its formalism +\ik3 +prove the + $\, i-$th kernelized image of every + $\Pi_1^*$ theorem that $A$ proves. +This fact is helpful +because +\eq{testker}'s invariance +holds for all $\Pi_1^*$ sentences. +Moreover, our +``U-Grounded'' +$\Pi_1^*$ sentences +capture all +Conventional Arithmetic's +{\it crucial} +$\Pi_1$ +information +because they can +view +multiplication as a 3-way + $\Delta_0^*$ +predicate +Mult$(x,y,z)$ +via +\eq{neweq1}'s +encoding of this predicate. +\begin{equation} +\label{neweq1} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x} \, 100~$? +%hhhh +Is the use of +such a sequence +%use, +for corroborating the Second Incompleteness +Effect +% , thus essentially, +%thereby +resting +% , essentially, +%, at least partially, +upon an +% an inherently +almost +artificial construct +(with + an +inherently +dizzying growth rate) ? +\end{quote} + + + +We will not attempt to derive a Yes-or-No answer to Question $***$ +because +we think that such a direct +response +%%% answer +is too simplistic. +Our point is that +both a positive and negative reply to + $***$ +are useful in different respects. +%% +%% it +%% is one of those epistemological questions that can be +%% debated +%% endlessly. +%% Our point is that $***$ +%% probably does not require a definitive +%% positive or negative answer because both perspectives +%% are useful. +%% +%% Thus, +%% the theoretical existence of a sequence +This because +the theoretical existence of a sequence +integers +of $ y_0, y_1, y_2, ... $, whose binary +encodings are doubling in length, is tempting +from the perspective of +an Utopian view of mathematics, while +awkward from an engineering styled +perspective. +We therefore ask: {\it ``Why not be tolerant +of both perspectives? ''} + +One virtue of +this tolerance is +it +ushers in +a greater understanding +for the statements $*$ and $**$ that G\"{o}del and +Hilbert made during +1926 and 1931. +This +is +because the +Incompleteness Theorem +demonstrates +no +formalism can display +an understanding of its own consistency in an +idealized + Utopian +sense. On the other hand, +\textsection 6 +suggested +these +two +remarks by G\"{o}del and Hilbert + might receive +more sympathetic interpretations, +if one +sought to explore +such questions from a less ambitious +almost engineering-style perspective. + + + + +Our +main thesis is +supported by a +theorem +from \cite{ww6}. It indicated that +tableaux +variations of self-justifying systems have no difficulty +in recognizing that an infinitized generalization of +a computer's +floating point multiplication (with rounding) is a total +function. The latter +differs from integer-multiplication, +by not having its output become double the length of +its input when a number is multiplied by itself. +Thus, the +intuitive +reason +\cite{ww6}'s + multiplication-with-rounding operation +is compatible with self-justification is +because it + avoids the +inexorable +exponential +growth under +rule \eq{smart-squeeze}'s sequence + $ y_0, y_1, y_2 .. ~ $. + +\bigskip + + +%\newpage + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + +%% bbbbbbb +Also, \thx{ttt4} indicates +self-justifying logics +can view +double-precision +integer multiplication +similarly +as + a total function. +In particular for +any arbitrary pair +of integers + $(a,b)$, +let us employ a notation convention where: +\bee +\item +{\bf Size(a,b)} denotes the maximum of +$ \, \lceil \, 1 \, + \,$Log$_2 \,a \, \rceil \, $ +and +$ \, \lceil \, 1 \, + \,$Log$_2 \,b \, \rceil \, $. +% $\, 1 \, + \,$Log$_2 \,b \,$. +\item The quantities +{\bf Left$(a,b)$} +and {\bf Right$(a,b)$} +represent the multiplicative product +of +the integers +$~a~$ and $~b~,~$ insofar as +Right$(a,b)$ +represents the rightmost bits of this product +of length Size(a,b), and +Left$(a,b)$ encodes the remaining bits to the left +of Right$(a,b)$ +(whose length will also be bounded by Size(a,b) ). +\ene +Within this context, +\thx{ttt4} indicates +self-justifying logics +self-justification +are able to view double-precision +integer-multiplication as +a total function. + +%% bbbbb +\begin{theorem} +\label{ttt4} +Let us assume +the $ \,A \,$ in +IS$_D(\aaa)$ and +$\ \beta \,$ in +\I2 +are axiom systems all of whose $\Pi_1^*$ +theorems are true statements under the standard model +of the natural numbers. +Then +if $D$ corresponds to either semantic tableaux or +\txl{1} deduction, +it is possible to formalize +systems +$~A^* \, \supseteq \, A~$ +and +$~\beta^* \, \supseteq \, \beta~$ +such that \js and \ns are self-justifying +extensions of respectively +IS$_D(\aaa)$ and +\I2 +which can recognize +%that +each of +the +double-multiplicative precision +operations of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ +%(that define the double-precision multiplicative product +%of $a$ and $b$) +as total functions. +\end{theorem} + +%% bbbbb +{\bf Proof Sketch;} The justification of \thx{ttt4} +is +% very +similar to +\cite{ww6}'s analysis of +Floating Point Multiplication +(with rounding). Our proof of \thx{ttt4} +will therefore be quite abbreviated. + +%% bbbbb +The first point is that it is +% quite +straightforward +to develop three $\Delta_0^*$ formulae, +called $\theta_1(a,b,y)$, + $~\theta_2(a,b,y)$ +and + $\theta_3(a,b,y)$, +that are the graphs of the functions + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +% Moreover, it +It +is also easy to construct a +finite set of $\Pi_1^*$ sentences, +holding true in the Standard Model, +called $~\gamma~$, +that know how to correctly interpret these three + $\Delta_0^*$ formulae, +insofar as $~\gamma~$ knows: +\bee +\item For each +%fixed +$a$ and $b$, there exists no more +than one integer $~y~$ that satisfies each of our +three $\theta_j(a,b,y)$ formulae. +\item For each +%fixed +$a$ and $b$, +our three $\theta_j(a,b,y)$ formulae +correctly simulate +the +graphs of +the respective +functions of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +\ene +%Moreover since +Since +our U-Grounding language contains the built-in +function primitives of ``Maximum'' and``Double$(x)$'', +the Group-1 component of +IS$_D$ +and IS$_D^{\#}$ +% formalisms +can +easily +verify that +the + operation +$F(a,b)$, defined below is a total function: +\beq +\label{F-def} +~F(a,b)~~=~~\mbox{ Double (Double (Double (Max}(a,b)))) +\enq +This implies, in turn, that +there exists a $\Pi_1^*$ sentence, called $\gamma^*$, that +will enable our formalism to verify that each of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ are total functions (simply because +their output values are less than +$~F(a,b)$'s output). + +The main point is that the hypothesis of \thx{ttt4} + indicated that +all the axioms of + $ \,A \,$ and +$\ \beta \,$ +did hold +true under the Standard Model, +and the preceding paragraph showed the same +was + true for all the axioms in + $~\gamma~$ and $~\gamma^*~$, +Hence all the axioms in +$~A^*~=~A~+~ \gamma~+~\gamma^*~$ +and +$~\beta^*~=~\beta~+~ \gamma~+~\gamma^*~$ +also +hold true in the Standard Model. +By Theorems \ref{ttt1} and \ref{ttt2}, +this implies that +IS$_D(\aaa)$ and +\I2 and are self-justifying formalism +satisfying \thx{ttt4}'s claims. $~~\Box$ + + + +%% \ik3 +%% represents Peano Arithmetic. Then +%% IS$_D(\aaa)$ and \ik3 +%% can formalize +%% two total functions, called Left$(a,b)$ +%% and Right$(a,b)$, +%% where any pair +%% of integers +%% $(a,b)$ +%% is mapped onto +%% the left and right halves of +%% $a$ and $b$'s multiplicative +%% product. + + +\begin{remark} +\rm +\label{rem-new} +One +subtle +%% slightly tricky +aspect is that our positive +results, +involving +\cite{ww6}'s +floating point multiplication +primitive +and \thx{ttt4}'s +analogous +double precision multiplication +operation, +{\it should +not be confused} with a +quite different +exploration of integer multiplication +in the context of our analysis of Herbrand +consistency +in \cite{ww9}. +The latter took advantage +of the fact that +our deployed + Herbrand-styled proofs +%%% in \cite{ww9}'s paradigm , are +in \cite{ww9} were +exponentially +longer than their +tableaux +counterparts +(thus allowing \cite{ww9} +to formalize +a limited use of multiplication). +This was because +% its +\cite{ww9}'s +deductive +methods +were +%%%%% were, inherently, +exponentially +less efficient +at an inherent +level. +Thus + \cite{ww9}'s result, +while +of +%somewhat +%% +%%certainly +%%perhaps +%% +theoretical +%theoretically +interest, +is +%essentially +%%% hhhhh +basically +irrelevant to +the core +engineering environments, +%e.g. +which +constitutes +% are +the + main +% central +focus of + Theorems \ref{ttt1}--\ref{ttt4}. +%% +%% (especially in regards to their +%% particular interpretations +%% given in +%% Remark \ref{rem2}). +%% +\end{remark} + + +%% In other words, Remark \ref{rem-new}'s +%% observation is, once again, connected to +%% the crucial distinction between +%% % an +%% engineering +%% and mathematical viewpoints +%% about +%% the +%% significance of theorem-proving. + + + +%%%bbbb +Remark \ref{rem-new}'s +contrast between + \cite{ww9}'s results and \thx{ttt4} + is, once again, connected to +the distinction between +the +engineering +and mathematical viewpoints +about + the main +intentions +%importance +%significance +of theorem-proving. +% From an engineering perspective, +\thx{ttt4} +is helpful +from an engineering perspective +because most +% of the +pragmatic +%engineering +applications +of integer multiplication +are analogous to either +%% +%% correspond to +%% essentially +%% % what correspond to be +%% the standard computerized word-oriented integer-multiplication +%% primitive +%% %operations +%% or +%% its +%% %their +%% conventional +%% + computerized double-precision +multiplication or its +quadruple-precision or hexagonal +% -precision +% computerized +generalizations. + +\thx{ttt4} +(and its quadruple-precision +and +% hexagonal-precision generalizations) +hexagonal generalizations) +% helpfully +indicate +% such +these +% pragmatic +operations are +% fully +compatible with a formalism recognizing its own +semantic tableaux +%and \txl{1} +consistency. + +\section{A Different Type of Evidence Supporting +Our +Thesis} + +\label{pppp8} + + +Let us recall + Pudl\'{a}k and Solovay +\cite{Pu85,So94} +observed +that +essentially all +Type-S +systems, +containing merely +statement \eq{totdefxs}'s +axiom that successor is a total function, +cannot verify their own consistency under +Hilbert deduction. +(See also related work by +Buss-Ignjatovic \cite{BI95}, +H\'{a}jek and + \v{S}vejdar \cite{Sv7}, +as well as \cite{ww1}'s +Appendix A.) + + +It turns out that +\cite{wwlogos} generalized +these + results to +show that +\ep{totdefxa}'s +Type-A +systems are unable to verify their +own consistency under the +\txl{2} deduction +system +(defined +in +\textsection + \ref{pppp3}). +At the same time, +the IS$_D$ +and IS$^{\#}_D$ +frameworks, +from Sections \ref{pppp4} + and \ref{pppp5}, can verify +their own consistency under +\txl{1} deduction. Our goal in this section will be to +illustrate how the +tight + contrast between these positive and negative +results +is +analogous to the differing growth rates +of +the +sequences +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from + rule \eq{smart-squeeze}. + + + + +During our discussion +$~G_i(v)~$ will denote +the scalar-multiplication +operation that maps +an integer $~v~$ onto +$~ 2^{2^i}\cdot v~$. +Also, $~\Upsilon_i~$ will denote +the statement, in the U-Grounding language, that +declares that + $~G_i~$ is a total function. +Our paper \cite{wwlogos} +proved that $~\Upsilon_i~$ has +a $\Pi_2^*$ encoding. It also implied that $~G_i~$ +satisfied: +\beq +\label{e-Gi} +G_{i+1}(v) ~~~ = ~~~ G_i(~ \, G_i(v)~ \, ) +\enq +It was +noted in \cite{wwlogos} that +this identity +implies one +can construct +an axiom system $ \beta $, comprised of +solely $\Pi_1^*$ sentences, +where +a semantic tableaux proof +can establish +$ \Upsilon_{i+1}$ +from +$ \beta+\Upsilon_i$ +in a constant number of steps. +This implies, in turn, that a \txl{2} proof from +$ \beta $ will require no more that O$(n)$ steps +to prove $ \Upsilon_{n}$ (when it uses the obvious +n-step process to +confirm in chronological order +$~\Upsilon_1 \, , \, \Upsilon_2 \, , \, ... \Upsilon_n ~.~~)$ + + +\smallskip + +These observations are significant because +$G_n(1)=2^{2^n}$. +Thus, +\cite{wwlogos} +% showed +established that +a \txl{2} proof +from $\beta$ can verify +in +only + O$(n)$ steps +that this +quite large + integer exists. + + +\smallskip + +This example is helpful because it illustrates +the difference between the growth speeds +under +\txl{1} and \txl{2} deduction, is analogous +to the +differing +growth +rates +of +the +sequences $ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from rule \eq{smart-squeeze}. +Hence once again, a faster growth-rate +will usher in +the Second Incompleteness Theorem's power +(e.g. see \cite{wwlogos}). + + +This analogy suggests +that the +Second +Incompleteness +Theorem has different implications from the perspectives +of +Utopian and engineering +theories about + the intended +applications of mathematics. Thus, a Utopian +may possibly be + comfortable +with +a +perspective, that contemplates sequences + $ y_0, y_1, y_2, ... $ +with +elements growing in length +at an exponential speed, but many engineers may be +suspicious of such +growths. + + + + + + +A hard-core engineer, +in contrast, might + surmise that the inability of self-justifying +formalisms to be compatible with \txl{2} deduction is +not +as disturbing + as it might +initially +appear to be. +This is +because \txl{2} +differs from + \txl{1} deduction +by producing +exponential growths that are so sharp +that their material realization has no analog +in the everyday mechanical reality that is the +focus of an engineer's +interest. + +Our personal preference is for +a perspective lying +half-way +between +that of an Utopian mathematician and +a hard-nosed engineer. +Its +dualistic +approach +suggests +some form of diluted +partial agreement +with Hilbert's goals +in $**$ (in a context where the broad significance of +the Second Incompleteness Theorem is obviously +undeniable). + + + + + + + + +\section{Outline of \thx{ttt2}'s Proof and +% Exploration of +% Further Discussion +Its Implications} + +\label{new9} +\label{newppp9} + + +The prior two sections of this article +offered an intuitive explanation about why our +self-justifying axiom systems needed omit the +assumption that multiplication is a total function +and +could verify their consistency +% verified their own consistency +only + under +% for +semantic tableaux and +\txl{1} deduction. + + +%%% \txl{1} deduction +%%% (rather than a stronger \txl{2} +%%% rule of inference). + + +We already noted +%that +\thx{ttt2}'s +observation that + IS$_D^{\#}$ +%% proof +%% that +is consistency-preserving +%transformation +has essentially an +analogous +% hhhh +%identical +proof as \cite{ww5}'s +demonstration that +%\K1 + IS$_D$ +is consistency-preserving. +It is not our intention to repeat +such a proof here. + +%%a +%%virtual +%% analog of +%%\cite{ww5}'s proof here. + +Instead, our goal will be to provide a brief overview +of the techniques +%appeared in \cite{ww5}'s proof. This +that \cite{ww5} +had +used. This +overview +will be +% brief but +%%% +%%% will not delve into all \cite{ww5}'s details. +%%% It will, +%%% however, be +%%% +sufficient +for +% so that +a reader +to +% can quickly +appreciate +the +% main +underlying +intuition. + +%the underlying intuition. + + +%%gain an intuition behind the +%%underlying nature +%% of Theorems \ref{ttt1} +%%and \ref{ttt2}. + +\bigskip + +More precisely, +two different types of proofs of \thx{ttt1} +had appeared in our 2002 conference paper \cite{tab2} +and subsequent journal paper \cite{ww5}. The +latter +%result +was more appropriate for an archival +journal because its self-justification result +applied to both semantic tableaux deduction and its +\txl{1} generalization. +The more compressed conference paper +\cite{tab2} proved the analog of \thx{ttt1} +only for tableaux deduction +(using a technique +% thus +that was +%pleasantly +somewhat +shorter +than \cite{ww5}'s more elaborate +result). +Our +% brief +summary of \thx{ttt1}'s +proof, +here, + will focus on the semantic tableaux deduction +methodology so it can apply to either of +\cite{tab2} +or \cite{ww5}'s +methods. +%results. + +%% +%%Our discussion +%%%in this section +%%will focus mostly on +%%\cite{ww5}'s more +%%sophisticated +%% result, but it should +%%be also helpful to readers who +%%wish to +%%examine only +%%\cite{tab2}'s +%%simpler +%%but +%%%% +%%%% and slightly simpler +%%%% presentation of a +%%%% +%%less ambitious result. + +Both of \cite{tab2,ww5} +%% had +% formalisms were +justified \thx{ttt1} +by means of proofs by +contradiction. +Thus if \thx{ttt1} +was false, +they +% both +noted +% then there would exist +%two +a pair of +proofs +%of +for +a $\Pi_1^*$ sentence and its negation +would exist +from +IS$_D(\aaa) $. + + + +Let us call these two proofs $P$ and $Q$. +Then \cite{tab2,ww5} both +showed +(using different constructions) that +one could construct from $(P,Q)$ +two other proofs $(p,q)$ of another +$\Pi_1^*$ sentence and its negation +such that: +\beq +\label{catch} +\mbox{Max}(p,q) ~~ < ~~ +\mbox{Max}(P,Q) +\enq +The inequality in \eq{catch} +is significant because it +will enable our proofs-by-contradiction to establish + the non-existence +of an ordered pair + $(P,Q)$ violating \thx{ttt1}'s assumption. +This is because +%otherwise +\eq{catch} +would +otherwise +violate the Principle of Induction by showing +there exists no such minimal ordered pair + $(P,Q)$ +eschewing \thx{ttt1}'s formalism. + +The +exact +details of these proofs by contradictions are too lengthy +%for us +to fully summarize +% them +here. +For the case where $D$ in \thx{ttt1} +is the semantic tableaux deduction method, they used the fact +that if $(P,Q)$ was the ordered pair with +minimal $ \mbox{Max}(P,Q)$ value violating +\thx{ttt1}'s hypothesis, +then one could +isolate +two +particular root-to-leaf paths in the tableaux +proofs $P$ and $Q$ that would enable us to construct an +additional pair $(p,q)$ +that violated \thx{ttt1} and satisfied +\eq{catch}'s inequality. + +This construction of + $(p,q)$ from $(P,Q)$ +utilized the fact that + \thx{ttt1}'s +axiom system + IS$_D(\alpha) $ recognized addition but not multiplication +as a total function. +Otherwise, \thx{ttt1}'s delicate +proof-by-contradiction would collapse entirely +(as a result of +the exponentially faster growth +properties +of multiplication +that was formalized by the +series + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship). + + +These observations reinforce the theme of +\textsection \ref{pppp7} +about the contrast between the slower growing series + $ x_1, x_2, x_3, ... $ +and its exponentially faster counterpart + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship. +These two series defined the +% respective +growth rates produced by the addition and +multiplication function symbols +% with +as, respectively, +$ \, x_n \, = \, 2^{ n+1} \, \, $ and +$ \, y_n \, = \, 2^{2^n} \, $. +They +thus illustrated +% thus, once again, illustrate +how multiplication's faster growth rate +leads to such a +%% +%% The themes of Sections \ref{ppp7} and +%% \ref{ppp8} was that the latter growth rate +%% represented a +%% +dizzying exponential speed-up, +that +% will +% would +makes +one at least partially sympathetic to a +hard-nosed engineer's skepticism about +its +implications. + +%significance. + +Thus if one were to +preclude such a dizzying growth rate then +a partial justification of a diluted version +of Hilbert's consistency program would arise, +in the context of systems possessing +{\it weak but well defined} knowledges of +their own consistency. +On the other hand, if the conventional assumption +that multiplication is a total function is presumed, +then the traditional interpretation of the +Second Incompleteness Theorem will +% , of course, fully +prevail. + + +%% +%% +%% Hence some partial caveats can be attached to the +%% Second Incompleteness Theorem that carry some +%% credibility from an hard-nosed engineering +%% perspective, while +%% simultaneously +%% they +%% fail to apply to a +%% %at the same time not +%% %be germane to a fully +%% pristine +%% mathematical +%% perspective +%% focused around the +%% Logical Platonism +%% (that G\"{o}del +%% had +%% explicitly explored). +%% %wrote about). + + +% \large + +% \baselineskip = 1.5 \normalbaselineskip + + +\section{Related Reflection Principles} + + +\label{pppxppp10} + +An added point is that there are many +types of +self-justifying systems available, with some +better suited for engineering environments +than others. + + +% bbb +For instance, our initial 1993 paper \cite{ww93} +employed a Group-3 {\it ``I am consistent''} axiom +that was much weaker than +the current specimen. +The distinction was that +\cite{ww93}'s self-consistency declaration +excluded +merely +the existence of a semantic tableaux proof +of $0=1$ from itself, while +the +sentence \eq{group3} is +more elaborate because +it excludes the existence of simultaneous proofs +of a $\Pi_1^*$ theorem and its negation. + + +Ideally, one would like to +develop self-justifying +systems $~S~$ that +% could +can +corroborate the validity +of \eq{brxefl}'s reflection principle for all sentences +$\Phi$. +\beq +\label{brxefl} +\forall p ~~[~ Prf_S^D(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +L\"{o}b's Theorem +establishes, +however, + that all + systems $S$, +containing +Peano Arithmetic's +strength, are able to prove +\eq{brxefl}'s invariant +{\it only in the degenerate case} where they +do +prove $\Phi$ +itself. Also, the Theorem 7.2 from \cite{ww1} +showed +essentially all +axiom systems, +{\it weaker} than Peano Arithmetic, are unable to prove \eq{brxefl} +for all $\Pi_1^*$ sentences $\Phi$ +simultaneously. Thus, +\thx{ttt5} +will be near optimal: + +%% xxxxx + +%%% bbbbb +\begin{theorem} +\label{ttt5} +Let us recall that the difference between \thx{ttt1}'s +axiom system + IS$_D(A)$ +and \thx{ttt3}'s formalism +\ik3 +was that the latter replaced + IS$_D(A)$'s infinite-sized Group-2 axiom schema +with \ik3's compact 1-sentence axiom +\eq{globsim}, so that the latter system could at least verify +\eq{t5kern}'s kernelized statement +for +each $\Pi_1^*$ theorem that $A$ proved. +\beq +\label{t5kern} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +Let likewise $IS^\lambda_\#( \, \beta_{A,i} \, )$ +denote the modification of \cite{ww1}'s $IS^\lambda(A)$ +self-justifying +system +that replaces the latter's Group-2 schema with +\eq{globsim}'s more compact single-sentence axiom declaration +(and +% again +%accordingly +then +has its Group-3 {\rm ``I am consistent''} +axiom statement +reflect this change, +once again). +Then in a context where ``semtab'' is an abbreviation for +semantic tableaux deduction, +the formalism $IS^\lambda_\#( \, \beta_{A,i} \, )$ +will be able to: +\bee +\item +Verify that +semantic tableaux + deduction supports the +following analog of +\eq{brxefl}'s +self-reflection principle +under + $IS^\lambda_\#( \, \beta_{A,i} \, )$ +%%% $S$ +for any +$\Delta_0^*$ and $\Sigma_1^*$ +sentences $\Phi~~$: +\beq +\label{nrxefl} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +\item +Verify +\eq{rdilute}'s more general +{\bf ``root-diluted''} reflection principle +for $IS^\lambda_\#( \, \beta_{A,i} \, )$ +whenever +$\theta$ is $\Sigma \, _{1}^*$ +and + $\Phi$ is a $\Pi_2^*$ sentence of the +form ``$~\forall u_1 ... \forall u_n~~ + \theta(u_1... u_n )~$''. +\beq +\label{rdilute} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Longrightarrow ~ \forall x~ + \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ + \theta(u_1... u_n ) ~] +\enq +\ene +\end{theorem} + + + +%% bbbb +As is suggested by the similarity between the +definitions of $IS^\lambda(A)$ and + $IS^\lambda_\#( \, \beta_{A,i} \, )$, +the proof of \thx{ttt5} is essentially +identical to +\cite{ww1}'s +analysis of $IS^\lambda(A)$. +For the sake of brevity, we will not repeat +the relevant proof here. + + + + +%%% +%%% \begin{theorem} +%%% \label{tts5} +%%% For any +%%% input axiom system $A$, +%%% it is possible to extend the self-justifying +%%% IS$_D(\aaa)$ and \ik3 +%%% systems, +%%% from Theorems \ref{ttt1} and \ref{ttt3}, +%%% so +%%% that the resulting +%%% self-justifying logics +%%% $S$ +%%% can also: +%%% \bee +%%% \item +%%% Verify that \txl{1} deduction supports the +%%% following analog of +%%% \eq{brxefl}'s +%%% self-reflection principle +%%% under $S$ +%%% for any +%%% $\Delta_0^*$ and $\Sigma_1^*$ +%%% sentences $\Phi~~$: +%%% \beq +%%% \label{nrxefl} +%%% \forall p ~~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Rightarrow ~~ \Phi~~] +%%% \enq +%%% \item +%%% Verify +%%% \eq{rdilute}'s more general +%%% {\bf ``root-diluted''} reflection principle +%%% for $~S~$ +%%% whenever +%%% $\theta$ is $\Sigma \, _{1}^*$ +%%% and +%%% $\Phi$ is a $\Pi_2^*$ sentence of the +%%% form ``$~\forall u_1 ... \forall u_n~~ +%%% \theta(u_1... u_n )~$''. +%%% \beq +%%% \label{rdilute} +%%% \forall p ~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Longrightarrow ~ \forall x~ +%%% \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ +%%% \theta(u_1... u_n ) ~] +%%% \enq +%%% \ene +%%% \end{theorem} +%%% + + +%% \thx{ttt5}'s proof +%% will +%% rest +%% upon +%% hybridizing +%% the techniques from +%% \cite{ww1}'s +%% tangibility reflection principle +%% with Theorem +%% \ref{ttt3}'s +%% methodologies, +%% in a +%% natural +%% very +%% manner. +%% %hhhh +%% Its proof is summarized in Appendix D. + + + +% \baselineskip = 1.21 \normalbaselineskip +\parskip 4pt + +Analogous to our +other +results, +\thx{ttt5} +reinforces +% the +our + theme about how +exceptions +to +the Second Incompleteness Theorem +may +appear to +be +{\it quite +minor} +from the perspective of +an Utopian +view of mathematics, +while +being +significant +from an engineering standpoint. +In \thx{ttt5}'s +particular case, +this is +because: +\bed +\item[A. ] +The ability of \thx{ttt5}'s +system +%%% $S$ +to +support +\eq{nrxefl}'s +self-reflection principle +under +tableaux +%\txl{1} +proofs for +any + $\Delta_0^*$ and $\Sigma_1^*$ sentence, +as well as +to +support +\eq{rdilute}'s +root +reflection principle +for $\Pi_2^*$ sentences, +is +clearly +significant. +\item[B. ] +The incompleteness result +of \cite{ww1}'s +Theorem 7.2 +imposes, +however, +sharp limitations upon Item A's +generality +(in that it cannot be extended to +fully all + $\Pi_1^*$ sentences, +{\it in an undiluted sense).} +\ennd +% +% \noindent +Thus, +the tight fit +between + A and B +is +reminiscent of +other +slender +borderlines, +that separated +generalizations and +boundary-case exceptions +for the +Incompleteness Theorem, +explored +earlier. +Once again, +the Second Incompleteness +Theorem +is +seen + as robust, +from an +idealized +Utopian perspective on mathematics, +while +permitting +caveats +from +engineering +styled +perspectives. + +This + dualistic +viewpoint +allows one to +nicely +share +{\it partial (and not full)} +agreement with +Hilbert's +main aspirations in $**$, +$\,$while also + appreciating +the + stunning +achievement +of +the Second Incompleteness Theorem. + + + + + + + + +\section{Concluding Remarks} + +\label{ppppp10} + + +At a purely technical level, +this article has reached beyond +our prior papers in +several +respects, +including +\textsection \ref{pppp5}'s demonstration +that any +initial +system $A$ +can have a kernelized image of its + $\Pi_1^*$ knowledge duplicated by +\ik3's {\bf strictly finite sized} +self-justifying +system, +as well as +%and also by + Section +\ref{pppp6}'s +and +Remark \ref{rem2}'s +quite + pragmatic + L-fold generalizations +of +\thx{ttt3}. + +% this result. + + + + +These +perspectives +%results +help resolve the mystery +that has +enshrouded +the Second Incompleteness Theorem and the statements +$*$ and $**$ +of G\"{o}del and Hilbert. +This is because +we have +{\it meticulously separated} +the goals of a +pristine theoretical study of mathematical +logic +from +those of +a + {\it +finite-sized} +axiomatic +subset of mathematics, +intended + for modeling +mostly +an engineering environment. + + + + + + + + + +There is no question that +G\"{o}del's Second +Theorem +is ideally robust, +relative to a +purely pristine +approach to mathematics. +On the other hand, we suspect +Hilbert +was +{\it half-way +correct} by + speculating +in + $**$ +about humans +possessing +a knowledge +about + their own consistency, +{\it in at least some +% strikingly + weak +and + tender sense,} as +essentially a +% fundamental +prerequisite +for +{\it psychologically + motivating} +their cogitations. +%%%% hhhhhh +Thus in a context where the limitations of axiom systems, +that fail to recognize multiplication as a total function, +are manifestly +obvious, +%% +%% +%% +%% even when +%% such systems +%% duplicate +%% Peano Arithmetic's +%% central +%% $\Pi_1^*$ knowledge, +%% +it is legitimate to +inquire + whether some +future +specialized +21st century computers + might +find +some +{\it partial-albeit-and-not-full} redeeming +value +in formalisms +having +{\it weak-style} + knowledges +of +their + \txl{1} consistency, +as well as possessing a knowledge of +Peano Arithmetic's +$\Pi_1^*$ theorems. + + +%%%% hhhh +%%More precisely, +Sections +\ref{pppp5}-\ref{pppxppp10} +were, +thus, + intended +to provide +a +unified +broad-scale +interpretation of our +diverse + earlier +results +that had appeared +%appearing +in \cite{ww93}-\cite{ww9}. +%from +%\cite{ww93,sp0,ww1,ww2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +In a +context where +the +Incompleteness +Theorem is +%% +%% firmly +%% understood +%% to be +%% + sufficiently +ubiquitous + to preclude Hilbert's +aspirations in $**$ +from +ever +being fully realized, +they show +how +some +{\it fragmentary portion} of Hilbert's +conjectures +can +be corroborated by +{\it judiciously weakened} logics, +using a formalism, that is +{\it much less} than ideally robust, +{\it although +not fully immaterial}. + +%\medskip + +\bigskip + +Such partial evasions of the Second Incompleteness Effect +are certainly not broad-scale, but they +do corroborate a fragment of what G\"{o}del and Hilbert +%referred to +had +sought +as +% ideal +their +desired +goals, +expressed + in the statements $*$ and $**$. + +\newpage + +%\bigskip + + {\bf Acknowledgments:} $~$I thank + Bradley Armour-Garb and Seth Chaiken for +many + useful suggestions about how to +improve the presentation of our results. +%% I also thank the anonymous referees for their comments. +This research was +partially supported +by NSF Grant CCR 0956495. + + +\small + \parskip 2 pt +\baselineskip = 0.86 \normalbaselineskip + + + +\bibliographystyle{abbrv} +\bibliography{b15} + + + + +% eeee end end +% \newpage + + + + + +%\large +% \baselineskip = 1.5 \normalbaselineskip + +% \baselineskip = 1.2 \normalbaselineskip + + \parskip 4 pt + +\ssspace + +\section*{Appendix A: Definition of a +Semantic Tableaux Proof } + +The +definition of a semantic tableaux proof, +provided here, +will be similar to analogous definitions used in +say Fitting's or Smullyan's textbooks + \cite{Fi90,Smul}. + +%% For simplicity +%% during our discourse, +%% a sentence $~\Psi~$ +%% will be called PRENEX$^*$ iff it is written in the +%% form $Q_1 \, x_1~Q_2\, x_2...~Q_n \, x_n~~\theta(x_1,x_2...x_n)~$ +%% where $~\theta(x_1,x_2...x_n)~$ is a $\Sigma_0^-$ formula +%% and $Q_i$ denotes either the symbol $\forall$ or $\exists$. + +During our +discussion, a +% discourse, a +{\bf $\Phi$-Based Candidate Tree} for +an axiom system $\, \alpha \,$ +will be defined +to be a tree structure +whose root corresponds to +the sentence $~\neg \, \Phi~,~$ rewritten in +prenex normal form, and whose all other nodes are +either axioms of $~\alpha~$ or deductions from higher +nodes of the tree +(using the Rules 1-6 defined below). +More precisely, our six rules +(below) + have +``$~ \cal{A} ~ \longmapsto ~ \cal{B} ~$'' denote +that $~ \cal{B} ~$ +is a valid deduction +from $~ \cal{A} ~$. +They +% thus +specify when such a +descendant +node $~ \cal{B} ~$ is allowed to +appear below an ancestor $~ \cal{A} $ +%% +%% is an ancestor of $~ \cal{B} ~$ +%% in the candidate tree $~T~$. In this notation, the deduction +%% rules allowed +%% +in a candidate tree: +\begin{enumerate} + \parskip 1 pt +\item $~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Upsilon +~$ +and +$~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Gamma ~$ . +\item $~ \neg \,\neg \, \Upsilon ~ \longmapsto ~ \Upsilon~$. +Other +% valid Tableaux +rules for +the ``$~ \neg ~$'' symbol include: $~$ +$~\neg ( \Upsilon \vee \Gamma ) ~ \longmapsto ~ \neg \Upsilon +\wedge \neg \Gamma~$, +$ \, \neg ( \Upsilon \Rightarrow \Gamma ) \, \longmapsto \, \Upsilon +\wedge \neg \Gamma \, $, +$ ~~~~\, \neg ( \Upsilon \wedge \Gamma ) \, \longmapsto \, \neg +\Upsilon \vee \neg \Gamma \, $, + $~ \, \neg \, \exists v \, \Upsilon (v) \, \longmapsto \, +\forall v \neg \, \Upsilon (v) \, $ and + $ ~\, \neg \, \forall v \, \Upsilon (v) \, \longmapsto \, +\exists v \, \neg \Upsilon (v)$ +\item A pair of sibling nodes $~ \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof +tree when their ancestor is +$~\Upsilon \, \vee \, \Gamma~$. +\item A pair of sibling nodes $~ \neg \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof + tree when their ancestor is +$~\Upsilon \, \Rightarrow \, \Gamma~$. +\item $~ \exists v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(u) ~$ +where $~u~$ denotes a newly introduced ``Parameter Symbol''. +\item $~ \forall v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(t) ~$ +where $~t~$ denotes a ``Composite Term''. +These terms here are +built out of +combination of + the U-Grounding Function symbols, +the constant symbols representing ``0'' and ``1'' +and the parameter symbols $~u_1,u_2,..,u_n~$, +where each +%symbol +$~u_i~$ {\bf was previously} +introduced by +% instance of +applying +Rule 5 +%applying +to +an ancestor +of the node storing +% the current new deduction + ``$ ~ \, \Upsilon(t) ~$''. +\end{enumerate} +Define a particular leaf-to-root branch in a candidate +tree $~T~$ to be {\bf Closed} iff it contains both some sentence +$~ \Upsilon ~$ and its negation $~ \neg \, \Upsilon ~$. + A {\bf Semantic +Tableaux} proof of $~\Phi~$ will then be defined to be +a candidate tree whose root stores the sentence +$~ \neg \Phi~$ (written in prenex normal +form) and all of whose root-to-leaf branches are +closed. + +% All our theorems in the current article have, + +Our +% discussion in the +current article has, +% will, +for simplicity, +used the preceding definition for a semantic tableaux proof. +Some of our prior articles +%have +used a minor modification +of this definition where there were two additional deduction +rules for ``bounded quantifiers'' of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$''. +It is technically unnecessary to use special rules for +such bounded quantifiers because these two expressions +can be treated as being equivalent to +\eq{bex} and \eq{beu}, respectively. +\beq +\label{bex} +\exists \, v ~~~~ v \leq t~\wedge~ \Upsilon (v) +\enq +\beq +\label{beu} +\forall \, v ~~~~ v \leq t~\Rightarrow~ \Upsilon (v) +\enq +Thus, we technically do not need special Elimination Rules +for bounded quantifiers of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$'' +because statement +\eq{bex} allows the + former to be eliminated +by applying Rules 5 and 1, and likewise +\eq{beu} can +be processed via Rules 6 and 4. + + +%% For simplicity, we will thus rely upon the above 6-part definition +%% of semantic tableaux during the current article. +%% +%% ???? Remove above sentence ??? bbbbbbbbbbbbbbbbb + +\section*{Appendix B: Summary of G\"{o}del Encoding Method} + +Every +%% formalization of either a +generalization and +% a +boundary-case +exception for + the Second Incompleteness +Theorem +does +require + deploying a + G\"{o}del encoding methodology +(to make it well defined). +Such an encoding scheme will be +called +{\bf Optimally Linearly Compressed} if it requires: +\bed +\item[ A. ] +Only +$O(1)$ bits to store +each occurrence +of any +logical symbol +% any of the logical symbols +appearing in a tableaux proof +(except for the objects that +Items 5 and 6 of Appendix A called the $i-$th +``variable'' and ``parameter'' symbols). +\item[ B. ] +No more than +$O(~1~+~$Log$(i) ~)$ bits to +encode + a proof's +$i-$th +``variable'' and ``parameter'' symbols. +(This $O(~1~+~$Log$(i) ~)$ magnitude is unavoidable +because +there is no finite limit to the number of different +variable and parameter objects that may appear in +one of Appendix A's +semantic tableaux proofs.) +\ennd +All our published results about either +generalizations or +boundary-case +exception +for the Second Incompleteness Theorem have used such optimally +compressed encodings. + + +In particular, +our scheme for +encoding +a semantic tableaux proof + will use +the following +24 language symbols: +\begin{enumerate} +\small + \baselineskip = 1.1 \normalbaselineskip +\item The standard connective symbols of +$\wedge ,~ \vee ,~ \neg ,~ \rightarrow ,~ \forall$ +and $~ \exists$. +\item Two +left and two right parenthesis symbols +denoted as: $~(~$ , $~)~$ +$~\underline{\, ( \,}~$ and $~\underline{\, ) \,}.~$ +\item +Two symbols to represent the special constants of ``0'' and ``1''. +\item +Eight function symbols for representing for representing +the eight formal U-grounding functions of Addition, Doubling, Subtraction, +Division, Logarithm, etc. +\item +The relation symbols of +``$~=~$'' and ``$~ \leq ~$''. +\item The symbol $~ \hat{V} ~$ for designating +the presence of a basic variable $~v~$ +in a logical sentence. +\item The symbol $~ \hat{U} ~$ for designating +the presence of a parameter constant $~u~$ +in a logical sentence (which is produced by +Appendix A's +deduction rule 5 for +eliminating +existential quantifiers). +\end{enumerate} +Define a byte to be an unit consisting of six bits. +We +may +%will + think of a proof as +comprising + either + a sequence of +bytes or being an +equivalent +integer +written in base 64. +Each of the 24 symbols (above) will be given +some unique 6-bit code, ranging between 32 and +55. +Our method for representing the presence of +the i-th variable $~v_i$ +will be to encode it is as +a string +comprised +of +$\, \lceil \, log_{\, 32 \,}(i+1) \, \rceil ~+~1~$ bytes, where the +first byte is the ``$\, \hat{V} \,$'' symbol and the remaining bytes +encode +i as a base-32 number. +% with the convention that the lead bit in each +%byte's 6-bit sequence is ``0''. +The same convention will be used to denote the presence of +the i-th parameter $~u_i~$ +except its first byte will be the ``$\, \hat{U} \,$'' symbol. + + + +Our notation has employed {\it two types} of +parenthesis symbols because the first pair of +parenthesis symbols will have their usual meaning in punctuating a +mathematical +sentence, whereas the latter pair of symbols + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ +will {\it separate} the individual sentences in +a Semantic Tableaux proof tree. For example, +consider a tree which stores +1) the sentence $~\psi_1~$ as its root, 2) +the sentences $~\psi_2~$ and $~\psi_3~$ as the root's children, and 3) +$~\psi_4~$ as the child of $~\psi_3.~$ There are several +possible notation conventions for using the + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ symbols +to encode a Semantic Proof tree. +Our encoding +convention will +presume +%be that +$~\psi_i~$ +is an ``ancestor'' of $~\psi_j~$ {\it if and only if} the range beginning +with the +parenthesis to $\psi_i$'s immediate left and continuing +to the matching right parenthesis includes +$~\psi_j.~$ +The example of our 4-node proof tree is thus +encoded as: +\begin{equation} +\label{paren} + ~~\underline{\, ( \,}~~ \psi_1 + ~~\underline{\, ( \,}~~ \psi_2~ + ~\underline{\, ) \,}~ + ~~\underline{\, ( \,}~~ \psi_3 + ~~\underline{\, ( \,}~~ \psi_4~ + ~\underline{\, ) \,}~~ \underline{\, ) \,}~~ \underline{\, ) \,}~ +\end{equation} + + +The preceding paragraph summarized our method for +encoding semantic tableaux proofs. Its +generalization +for +the +encoding of \txl{1} proofs is +straightforward. Thus if + $~p_1,p_2,...p_n~$ +collectively constitute +a list of semantic tableaux proofs +then the + natural concatenation +of their byte strings will be the corresponding + \txl{1} +proof. + +This ``Optimally Linearly Compressed'' encoding scheme +is +%noteworthy +essential +because all the core axiom systems, employed +in this article, are Type-A formalisms, that recognize Addition +but not Multiplication as a total function. If such formalisms +were less than optimally compressed then our main theorems +would lose relevance because the formalization +of +unnecessarily expansive encodings would be awkward +in the context of the slow growth properties of +Type-A formalisms. Thus, +our results carry much greater significance when their +% it is useful that our +encodings +of a proof satisfy the maximal compression properties, +% outlined in the first paragraph of +%that are +defined in +this appendix. + + +%% +%% This byte-styled encoding method is approximately analogous +%% to what Wilkie-Paris \cite{WP87} have called +%% a {\it natural B-adic} encoding or a similar +%% counterpart in the H\'{a}jek-Pudl\'{a}k textbook +%% \cite{HP91}. Such +%% compressed encodings are +%% considered to be more +%% meaningful and efficient than an uncompressed encoding method, +%% using say a Prime Number decomposition scheme \cite{Me97} +%% (because the latter has an unnecessarily long bit-length). +%% All our theorems would also be +%% valid for uncompressed +%% encoding methods. +%% However, they are more meaningful when one uses an +%% efficiently compressed +%% B-adic encoding method. +%% +%% %\newpage +%% + + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + + +\section*{Appendix C: Formal Encoding of +%Statmenent \eq{group3}'s +the +Group-3 Axiom} + +Let us recall +%that +Appendix A +reviewed the definition of +a +semantic tableaux +and \txl{1} + proof, + and Appendix B formalized the +encodings +of such proofs. The goal of this appendix +will be to summarize the methodology +%% \cite{ww5} +%% that was +used to define +Statmenent \eq{group3}'s Group-3 +axiom +in \cite{ww5} . + +%%% Passive Voice change in above sentence much +%%% better because it understates my use of \cite{ww5} . + + +%% {\bf More Detailed Description of the Group-3 Axiom:} $~$ +%% A formal description of +%% IS$_D(A)$'s +%% Group-3 axiom is more complicated than the abbreviated +%% descriptions given either by +%% Sentence$~*~$ or by \ep{group3}'s analog. +%% The +%% main added complication is because +%% the Group-3 axiom declares the consistency of +%% a formal set of axioms that includes ``itself'' +%% (in the words of Sentence$~*~).~$ +%% As was noted in Section 1, the notion of an +%% axiom including +%% ``itself'' when it refers to the consistency +%% of an axiom schema dates back to Kleene's 1938 paper \cite{Kl38}. +%% However, Kleene's abbreviated +%% description is insufficient to establish that +%% \ep{group3} can be encoded precisely as +%% a +%% $\Pi_1^*$ sentence. The next two paragraphs will +%% explain how this can be done. + +Let + UNION($A$) denote the union of IS$_D(A)$'s Group-Zero, +Group-1 and Group-2 axioms. +It will be useful to employ the following notation: +\begin{description} +\item[ i] $\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)$ +will denote a formula designating +that $~p~$ is a proof of the theorem $~t~$ from the axiom +system UNION($A)$ using the deduction method $~D.~$ +\smallskip +\item[ ii] +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$ +will be a formula stating that +$~p~$ is a proof +(using the deduction method $~D~)~$ + of +a theorem $~t~$ +from the union +of the axiom system +UNION(A) with the added axiom +sentence specified by the integer +$\, h \,$. +\smallskip +\item[iii] + $\mbox{Subst} \, ( \, g \, , \, h \, )$ will denote +G\"{o}del's +classic substitution formula --- which yields TRUE when $\, g \,$ +is an encoding of a formula +and $\, h \,$ is an encoding of a sentence +that replaces all occurrence of free variables in $\, g \,$ with +% the formally +an +encoded term +% of +$~\underx{g}~$ +(that designates $g$'s G\"{o}del number.) +\smallskip +\item[ iv] +$\mbox{SubstPrf}_{~UNION(A)}^D~( \, g \, , \, t \, , \, p \,)$ +will denote the natural +hybridizations of the constructs from Items (ii) and (iii) +which yields a Boolean value of TRUE exactly when there +exists some integer $~h~$ +simultaneously +satisfying +{\it both} +the conditions + $\mbox{Subst} \, ( \, g \, , \, h \, )$ and +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$. + +\end{description} +Each of (i)--(iv) +can be encoded as $\Delta_0^*$ formulae. +Thus, Appendices C and D of \cite{ww1} +%% thus, + explained how +the first three of these predicates can receive + $\Delta_0^*$ encodings when one applies +the theory of LinH functions +\cite{HP91,Kr95,Wr78}. +Hence, \eq{encode} illustrates +one possible $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{~UNION(A)}^D \,( g , t , p )$'s +graph. (It is +equivalent to +the statement +$~$``$~\exists ~h~[~\mbox{Subst} ( g , h )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D( h , t , p )\, ] \, \,$''$,~$ + but \eq{encode} is + a $\Delta_0^*$ formula --- {\it unlike} the quoted +expression.) +\begin{equation} +\label{encode} +\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)~~~\vee~~~\exists ~h\leq p +~~[~ \mbox{Subst} \, ( \, g \, , \, h \, )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)~] +\end{equation} + +Let us recall that +$\mbox{Pair}(x,y)$ is a $\Delta_0^*$ sentence +specifying that + $~x~$ +and $~y~$ +are +the encodings of + a $\Pi_1^*$ +and $\Sigma_1^*$ sentence, +that are logical negations of each other. +Using + \eq{encode}'s + $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{UNION(A)}^D( g , t , p )$, +we can now explain +how +statement +\eq{group3}'s Group-3 Axiom can +be formally encoded. +Let +$~\Gamma(g)~$ +denote \ep{encode2}'s formula, +% and let + $~n~$ denote $~\Gamma(g)$'s +G\"{o}del number +and $\underx{n}$ +denote a term encoding $n$ in the U-Grounding language. +$~\,$Then +it will turn out that $~$``$~\Gamma(~ \underx{n}~)~$''$~$ +will be a $\Pi_1^*$ sentence +that is equivalent to + this Group-3 axiom. +\begin{equation} +\label{encode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , y , q ) \,] +\end{equation} +More precisely, \eq{newencode2} formalizes the encoding +of + $~$``$~\Gamma(~ \underx{n}~)~$''. +\begin{equation} +\label{newencode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , y , q ) \,] +\end{equation} +%In particular, +Thus, +if we view +$~~$``$~\mbox{SubstPrf}_{~UNION(A)}^D~( \, + \underx{n} \, , \, t \, , \, p \,)~$'' +in \eq{newencode2} +as our formal method of +encoding the concept that was previously informally +called +``$~\mbox{Prf}~_{\mbox{IS}_D(A)}(t,p)~$'' +by Statement \eq{group3}, +then \eq{newencode2} amounts to +the formal encoding of +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration. + +\bigskip + +{\bf Reminder about +the Significance of + \eq{newencode2}'s Encoding :} +The preceding construction +%shows +had showed +merely that it is possible +to encode +Sentence +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration +in a well-defined manner as a $\Pi_1^*$ +sentence. +It does not answer the more subtle question about whether or not +its +{\it ``I am consistent''} axiom declaration +holds +true + under the Standard model. +%of the natural numbers. +As we have noted before, +most analogs of +%the above sentence +\eq{newencode2} +produce false statements +%fail to hold True +under the Standard Model +because a conventional G\"{o}del-like +diagonalization argument will imply +that +most deduction methods $D$ will produce +%their resulting +axiom systems +$\mbox{IS}_D(A)$ +that are + inconsistent. + +\medskip + +The reason for our +particular +interest in +\eq{newencode2}'s +formal encoding is that +Theorems \ref{ttt1} and \ref{ttt2} +indicate that $\mbox{IS}_D(A)$ +is +%indeed +consistent when $D$ denotes +either the semantic tableaux or \txl{1} +deduction methodologies. Thus +\eq{newencode2}'s +Fixed-Point construction should be seen as a +methodology that has +%limited-but-subtle +limited applications, +but which is also +quite helpful (when it is feasible). + +%quite significant. +\end{document} + diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/rejecter-wolic b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/rejecter-wolic new file mode 100644 index 0000000..38afa22 --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/rejecter-wolic @@ -0,0 +1,4931 @@ +%% suny feb 11 noon removed bib + +% home 2014 Feb 9 9.6 -3pm old title with key words and bibliog added + +%% NEED to do SPELL + +%% godel t0 goedel and spell + +%%% home jan17 8.31 am + +%%% suny jannary11 spell 6pm + +% home 2015 january 10 7 am -minor amendment while listening Sinatra + +% home 2015 january 4 1.1 pm + +% home 2015 january 3 2.3 pm abstract and new-bib; jan4 3,1am reformat + + +%% 2014 home march 29 8.5 pm +%% AFTER PAPER SUBMITTED CHANGED LAST paragraph + +%% 2014 home march 28, 4.1 am suny 10.1 am changed 7 -10 to 6 -10 + +%IMPORTANT REMINDER Long Paper should prove Theorem 3 for D= sem tab + +%\documentclass[12pt]{article} +%\documentclass[10pt]{article} +%\documentclass[11pt]{article} +\documentclass[11pt]{article} + + + + + + + + +\usepackage{amssymb} + + + +\addtolength{\oddsidemargin}{-0.9in} + +\setlength{\textheight}{9.0 in} + + +\setlength{\textwidth}{6.5 in} +\setlength{\textwidth}{6.6 in} +\setlength{\textwidth}{6.4 in} + + + +% \addtolength{\topmargin}{-.5in} +% \addtolength{\topmargin}{-.9in} + \addtolength{\topmargin}{-.6in} + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +\newtheorem{corollary}{Corollary} +\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} + +%%% changed to double numbers + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + +\def\iii{IS$_D(\aaa)$} +\def\I2{IS$^{\#}_D(\beta)$} +\def\ik3{IS$^{\#}_D(\beta_{A,i})$} + +\def\js{IS$_D(A^*)$} +\def\ns{IS$^{\#}_D(\beta^*)$} + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + +%% +%% \title{ +%% %\Large +%% On the +%% %Broader +%% Epistemological +%% Significance of +%% Self-Justifying Axiom Systems +%% from a Semantic Tableaux Perspective} +%% + + + + +% old title is + + \title{ +%\Large +On the Broader +Epistemological +Significance of +Self-Justifying Axiom Systems} +% from the Perspective of Analytic Tableaux} + + + + + + + + + + + + + + + + + + + + + + + + + + +\def\aaa{A} +\def\ccc{Class} + + + + + + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + + + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{\normalsize This research +was partially supported +by the NSF Grant CCR 0956495. +\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + + + + +\date{State University of New York at Albany} + +\maketitle + + \setcounter{page}{0} + \thispagestyle{empty} + + + +\begin{abstract} +\large +\baselineskip = 1.5 \normalbaselineskip +This article will be a continuation of our +research into self-justifying +systems. +It will introduce +several +new theorems +(one of which +will transform our previous infinite-sized +self-verifying +logics +into formalisms +or purely finite size). +It will explain how self-justification +is useful, even when the Incompleteness +Theorem +clearly +does sharply +limit its +scope. +\end{abstract} + + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +{\large +{\bf Keywords and Phrases:} +G\"{o}del's Second Incompleteness Theorem, Hilbert's Second +Open Question, Semantic Tableaux Deduction, + Consistency.} + + +%% +%% \begin{quote} +%% %{\bf $~~~~$ Detailed Abstract (as requested by Call for Papers):} +%% {\bf $~~~~ $ Abstract:} +%% $~$ +%% This article will be a continuation of our research into self-justifying +%% systems. It will introduce several new theorems and then explore their +%% philosophical significance. Its two specific goals will be to: +%% \bed +%% \item[ A. ] +%% Explain how to transform our prior results about infinite-sized +%% self-verifying axiom systems into tighter results about axiom +%% systems of purely finite cardinality. +%% \item[ B. ] +%% Explain how self-justifying axiom systems are useful {\it even when +%% the Second Incompleteness Theorem specifies limits for their reach.} +%% In particular, this second part of our +%% research +%% %results +%% discourse +%% will explain how +%% self-justification is related to open questions and conjectures that +%% G\"{o}del and Hilbert raised in 1926 and 1931. +%% \ennd +%% \end{quote} + +%% +%% Our discussion will have a more philosophical and easier-to-comprehend tone +%% than the more mathematically styled presentation in our prior published +%% papers. +%% % +%% %Our discussion will have a more philosophical and easier-to-comprehend tone +%% %than the more mathematically styled in our prior published papers. +%% %% +%% %% The discussion in this article will have a more philosophical and +%% %% easier-to-comprehend tone than the mostly mathematical discourse in our +%% %% prior published papers. Its +%% %% +%% Its +%% concluding section will offer a new +%% interpretation of the Second Incompleteness Theorem, where G\"{o}del's +%% historic result is taken as being {\it robust and ubiquitous} from a purist +%% theoretical perspective, while +%% % still +%% permitting enough wiggle room to +%% explain how humans gain the {\it psychological motive} to cogitate in +%% applications-oriented engineering-style environments. + + + + +\normalsize + + + + +\baselineskip = 1.5\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\fgf {\baselineskip = 1.3 \normalbaselineskip } + + + +\bbint + + + + +\normalsize +%% \LARGE\baselineskip = 1.1\normalbaselineskip +\baselineskip = 1.2\normalbaselineskip + +%\vspace*{- 3.0 em} + +\newpage + + +\def\J1{IS$_D(~\cdot ~)$} + + + +\def\K1{IS$_D(~\cdot ~)$} +\def\J2{IS$^{\#}_D(~\cdot ~)$} + + +%%% ssssssssssssss +%% TEXT IS HERE + + \parskip 5 pt + +%%%%%\large + \baselineskip = 1.235 \normalbaselineskip + +\large + +\baselineskip = 1.6 \normalbaselineskip +\baselineskip = 2.0 \normalbaselineskip +\normalsize \baselineskip = 1.22 \normalbaselineskip + +\def\ssspace{\normalsize \baselineskip = 1.24 \normalbaselineskip } + +% \def\ssspace{\normalsize \baselineskip = 2.1 \normalbaselineskip } + +\ssspace + + \parskip 5 pt + +\section{Introduction} +\label{pppp1} + + +G\"{o}del's Incompleteness Theorem +has two parts. +Its +first half indicates no decision +procedure can identify +all of +arithmetic's + true statements. +Its + ``Second Incompleteness'' +result + specifies +sufficiently strong +logics +{\it cannot} verify their own consistency. +G\"{o}del +was careful to insert +a + caveat +into +his historic paper +\cite{Go31}, +indicating +a +{\it +diluted} +form +of Hilbert's Consistency Program +might +% have some success: +reach some +levels of +partial + success: +\begin{quote} +$*~$ +% (G\"{o}del \cite{Go31} 1931): +{\it ``It must be +expressly +noted +Proposition XI +(e.g. G\"{o}del's +``Second'' Incompleteness +Result) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and { there might +conceivably be finite proofs} which cannot +be stated in P or in ...''} +\end{quote} +Some +scholars +have interpreted +$\,*\,$ +as, possibly, +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialetica interpretation. +On the other hand, +the Stanford's Encyclopedia's +entry about G\"{o}del +quotes him, +in its + Section 2.2.4, +stating +he was hesitant to +view the +Second Incompleteness Theorem + as +fully +ubiquitous, until +learning +of Turing's +work. +Moreover, +Yourgrau \cite{Yo5} +states +von Neumann +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +Also, it is known + \cite{Da97,Go5,Yo5} +that +G\"{o}del + initially +presumed the +second theorem +was false, before proving his stunning +result. +%hhhh + + + +\smallskip + + + +In any case +several + year after he wrote $*$'s +initial + statement, +G\"{o}del gave a +1933 + lecture \cite{Go33}, +where he +told his audience +that +Hilbert's +initial +1926 objectives, summarized +formally +by + $**$ below, +had + {\it ``unfortunately''} +no +{\it + ``hope of succeeding along''} +its originally intended plans. +\begin{quote} +$**~$ (Hilbert \cite{Hil26} 1926): +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding itself.''} +\end{quote} + +Our research, in both the current article +and +the +prior papers +\cite{ww93}-\cite{ww14} +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}, +was stimulated by the prospect that we find $**$ enticing, +even though the Second Incompleteness +Theorem +{\it unequivocally} + demonstrates that logics +{\it cannot} recognize +their own consistency +{\it in a robust sense.} +Accordingly, we have studied +{\it both} generalizations and boundary-case exceptions +for the Second Incompleteness Theorem +in +\cite{ww93}-\cite{ww14}. +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +The current article will seek to +{\it both} strengthen these prior +results, +in the context of axiom systems +with +{\it + strictly finite cardinalities}, +and to also provide a more intuitive explanation of the +meaning +behind +\cite{ww93}-\cite{ww14}'s +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}'s +results. + +The thesis of this article will be delicate +because there can be no doubt that + the Second Incompleteness +Theorem is +sharply robust, +when viewed +from a + conventional +purist +mathematical + perspective. +On the other hand, we will argue that there are certain facets +of a ``Self-Justifying Logics'', that are tempting +under a hard-nosed +engineering perspective, +contemplating + sharply + {\it curtailed forms} of Hilbert's goals. +These results will be + fragile +{\it but +not +fully +immaterial.} + + +%bbbb +In other words, this +article will offer a somewhat complicated +2-part interpretation of the Second Incompleteness Theorem +where: +\bee +\item +The Second Incompleteness Theorem is seen as +being 100 \% +robust from a mathematical perspective +because of the +% ubiquitous and +widely +encompassing nature of the 1939 +Hilbert-Bernays analysis \cite{HB39} (centering around +their three +well-known +``Derivability Conditions'' \cite{Mend} ). +\item +On the other hand, our discourse +will partially +appreciate Hilbert's reluctance +to fully embrace the Second Incompleteness Theorem, +despite his +joint +work with Bernays \cite{HB39} +generalizing the Second Incompleteness Effect. +(This is +because it is awkward to explain how human beings can +% undeniable +acquire the mental energy +for motivating themselves to cogitate, +without possessing some type of instinctive faith +in their own self-consistency.) +\ene +%It is in the context where +Thus, +the current article + will seek to +separate a {\it ``mathematical''} from +what perhaps should be +{\it ``engineering-style''} + appreciation +of one's +internal consistency. We will seek to define and explore the +latter +%nature of this +%engineering notion in the current article +(with the hope that it will help formalize how future +21st century computers can benefit from its engineering-style +%% notion +perspective, +while still respecting +%%% at the same time +the strict prohibitions formalized by +G\"{o}del's millennial result.) + + +As the reader examines this paper, it should be kept in mind +that +it does +focus on +% the properties of +semantic tableaux +deduction (similar to the earlier +% more abbreviated +discussion that had +appeared in \cite{ww14}'s more abbreviated +conference-style summary of our results). +A second paper, currently under preparation, +will examine Hilbert-style deductive systems (whose +self-justification properties +are partially analogous and partly +quite +different from +% our +tableaux-style systems). +The combination of these two results will formally +define both the potential of self-justifying logics +and the limitations which the Second Incompleteness +Theorem imposes upon them. + + +%% +%% In other words, the theme of this article will be that conventional +%% interpretations of the Second Incompleteness Theorem are +%% certainly 100 \% +%% correct from a mathematical perspective. +%% as foreseen very rigorously +%% as early as 1939 +%% by Hilbert-Bernays \cite{HB39}. +%% This is because +%% no formalism can +%% recognize its own consistency in a very robust +%% strictly +%% %purely +%% mathematical +%% respect. +%% On the other hand, it also +%% seems +%% evident +%% %% appears apparent +%% % undeniable +%% that +%% human beings +%% will +%% %would +%% find it awkward +%% %be unable +%% to acquire the mental energy +%% for motivating themselves to cogitate, +%% without possessing some type of instinctive faith +%% in their own self-consistency. +%% This perhaps should be +%% called an +%% % {\it quasi- +%% {\it engineering=style appreciation} of one's +%% internal consistency. We seek to define and explore the +%% nature of this +%% engineering notion in the current article +%% (with the hope that it will help formalize how future +%% 21st century computers can benefit from this engineering-style +%% notion while, of course, respecting +%% %%% at the same time +%% the strict prohibitions formalized by +%% G\"{o}del's millennial result.) + + + +\section{Background Setting} +\label{pppp2} + + +Let + $( \alpha , d )$ +denote any axiom system +and deduction method satisfying +the +simple {\bf ``Split Rule''} +below$\,$\footnote{Our + ``Split Rule'' +is the trivial requirement + that all the axiom sentences in +$~\alpha~$ are +technically +{\it proper axioms}, and + that +deduction method $~d~$ is +required +to include +{\bf BOTH} a finite number of rules of inference +and +whatever ``logical axioms'' are needed +{\it (if any ? )} +by $\,d$'s methodology. +(This +trivial +Split-Rule +notation convention will +help us to provide a +%%hhhh +precisely formalized statement of our results. + .)}. +This pair +will +be called {\bf ``Self Justifying''} when: +\begin{description} + \item[ i ] one of $ \, \alpha \,$'s theorems +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +second + $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +requirement. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +\begin{quote} +$\bullet~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of the +system $ \alpha $ +with {\it this} +sentence ``SelfRef$(\alpha,d)$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +noted +how +to +encode +rough + analogs of + ``SelfRef$(\alpha,d)$''. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii's +requirement. + + +%% hhhh +This problem arises in +many +contexts besides + G\"{o}del's +paradigm, +where $\alpha$ was an extension of Peano Arithmetic +(see +\cite{Ad2,AZ1,BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Ko6,KT74,Lo55,Pa71,Pa72,Pu85,Pu96,Ro67,Sa12,So94,Sv7,Vi5,WP87,ww2,wwlogos,ww7}). +Such results formalize +paradigms where +self-justification is infeasible, +due to diagonalization issues. +(It should, +perhaps, + be added that among this +lengthy list of articles, +it was especially +\cite{Ad2,Bu86,Go31,Lo55,Pu85,So94,WP87}'s +incompleteness results that +influenced our +work in +\cite{ww93}-\cite{ww14}.) +% in \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}.) +In any case, the main point is that +most +logicians +have +hesitated +to + employ +an +analog of a + SelfRef$(\alpha,d)$ + axiom +because + $ \alpha^d = \alpha+$SelfRef$(\alpha,d) $ +is +typically +inconsistent. + + + + + + + + + +Our research +in \cite{ww93,ww1,ww5,ww6,wwapal} +focused on +paradigms +where +self-justification is feasible. +It +involved weakening +the properties +a +logic +can prove +about +addition and/or +multiplication +(to avoid +potential +difficulties). +To be more precise, let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote +3-way predicates +specifying +$x+y=z$ and +$x*y=z$. +Then a +logic +will be said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} iff it +includes +sentences +1-3 as axioms. + +\vspace*{- 0.4 em} +{\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + +\vspace*{- 1.2 em} + +A +logic +$\alpha$ +will be called +{\bf Type-M} iff it contains +\ref{totdefxs}-\ref{totdefxm} +as axioms, +{\bf $~$Type-A} iff it contains only +\eq{totdefxs} and \eq{totdefxa} as axioms, +{\bf $~$Type-S} iff it contains +only \eq{totdefxs} as an + axiom, and +{\bf $\,$Type-NS$\,$} iff it contains +none of these axioms. +The relationship of these constructs to +self-justification +is explained by +items (a) and (b): +\bed +\item[ a. ] +The existence of +Type-A systems that can recognize +their own +consistency under semantic tableaux deduction, +while proving +analogs of +all +Peano Arithmetic's + $\Pi_1$ theorems (in a slightly different language), +were +%%hhhh +demonstrated in +\cite{tab2,ww5}. +Also, \cite{ww1,wwapal} noted that +some +specialized +forms +of +Type-NS systems +can +likewise +recognize their +own Hilbert consistency. + + + +\item[ b. ] +The above +evasions of the Second Incompleteness +Theorem are known to be near-maximal in a mathematical sense. +This is because +the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} implied no +natural +Type-S system can recognize its Hilbert consistency, +and Willard +subsequently + \cite{ww2,ww7,ww9} +hybridized their formalisms with some techniques of +Adamowicz-Zbierski +\cite{Ad2,AZ1} +to establish that most +Type-M systems cannot recognize their +own semantic +tableaux consistency. +\ennd + + + +Other +fascinating +efforts to +evade the Second Incompleteness Theorem +have used +the Kreisel-Takeuti ``CFA'' +system \cite{KT74} +or the +the {\it interpretational framework} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to our approach +because they +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Instead, CFA uses the +special +properties of ``second order'' generalizations of Gentzen's +{\it cut-free} +Sequent Calculus, +and +the +interpretational approach +formalizes how some systems +recognize their + Herbrand consistency +on localized sets of integers, +which +unbeknownst to +themselves, +includes all +integers. +(These alternate results are interesting but +unrelated to our approach.) + + + + + + + +\section{Defining Notation and Earlier Results} +\label{pppp3} + +\label{sect3} + + + +A function $F $ +will be called {\bf Non-Growth} +iff +$ F(a_1...a_j) +\leq Maximum(a_1...a_j)$ +holds. +Six examples of +non-growth functions are +\bee +\small +\parskip 0pt +%hhhh +\item +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +\item +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +\item +$Maximum(x,y),$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +\item +$\,Root(x,y) \, = \, \lfloor \, x^{1/y} \, \rfloor~$. and +\item$Count(x,j)$ designating the number of ``1'' bits +among $ x$'s rightmost $ j $ bits. +\ene +The term +{\bf U-Grounding Function} +referred in \cite{ww5} to +a set of +primitives, +which included the +preceding +functions plus the {\it growth operations} of addition and +{\it Double$(x)=x+x$}. +Our language $L^*$ was +built +out of these +symbols, +plus the primitives of +``0'', ``1'', + ``$ \, = \, $'' +and ``$ \, \leq \, $''. + + + + +In a context where $~\, t \, ~$ is any term in \cite{ww5}'s +language $L^*$, +$\,$the quantifiers in +%% the wffs +$~ \forall ~ v \leq t~~ \Psi (v)~$ and $~ \exists ~ v \leq t~~ \Psi (v)$ +were called {\it bounded +quantifiers}. +Any formula in + $L^*$, +all of whose +quantifiers are bounded, was called +a $\Delta_0^*$ formula. +The $~\Pi_n^{* }~$ and $~\Sigma_n^{* }~$ formulae +were +then defined by the +usual +rules that: +\bee +\item +Every +$\Delta_0^*$ formula is considered to +be +``$~\Pi_0^{* }~$'' and +also + ``$~\Sigma_0^{* }~$''. +\item +A +wff +is called + $ \,\Pi_n^{* } \,$ +when it is encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ with +$\Phi$ being $\Sigma_{n-1}^{* }$ +\item +Also, +a wff +is called + $\Sigma_n^*$ +when it is encoded as +$\exists v_1 ..\exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{* }$. +\ene + +%%bbb +Our articles \cite{ww93,tab2,ww5} used the symbol $~D~$ to denote +a deduction method. +They focused mostly around the +semantic tableaux deductive methodology, +whose formal definition can be found in the textbooks +by Fitting and Smullyan +\cite{Fi90,Smul} and whose +definition is also reviewed +by Appendix A of the current article. + +%%bbb +Our articles \cite{wwlogos,ww5} +also considered an improved faster deductive technology, + called +{\bf Tab-k + deduction}, that +consists of a +speeded-up version of a +tableaux, +which +permits a +{\it limited analog} of +Gentzen-style deductive +cuts +for $\Pi_k^*$ and $\Sigma_k^*$ formulae. +Thus, if + $~H~$ +denotes a sequence of ordered pairs +$~(t_1,p_1),~(t_2,p_2),~...~(t_n,p_n),~$ +where $~p_i~$ is a Semantic Tableaux proof of the theorem $~t_i,~$ +then $H$ +has been + called a +{\bf ``Tab-k +Proof''} +of a theorem $~T~$ +from $\alpha$'s axioms + iff $~T=t_n~$ +and also: +\begin{enumerate} +\item +Each of the ``intermediately derived theorems'' +$~t_1,t_2, \, ... \, , t_{n-1}~$ +have a complexity no greater than that of +either a $\Pi_k^*$ or $\Sigma_k^*$ sentence. +\item +Each +proper axiom in $ p_i$'s +proof +comes +either +from $\alpha$ or is + one of $ t_1,t_2, \, ... \, , t_{i-1} $. +\end{enumerate} +Thus, a +Tab-k proof is essentially a generalization of a classic +semantic tableaux proof that essentially owns the equivalent of +an +extra specialized modus ponens rule for + $\Pi_k^*$ and $\Sigma_k^*$ sentences. + +Let +us say +an axiom system $\alpha$ +has a {\bf Level-J Understanding} +of its own +consistency +under a deduction method $D$ +iff $\alpha$ can prove that there exists no proofs +using +its axioms and $D$'s deduction +of both a +$\Pi_J^*$ theorem and its negation. +In this notation, items A and B summarize +\cite{sp0,ww2,wwlogos,ww5,ww7}'s +main +results: +\bed +\item[ A. ] + For +any +axiom system $A$ using $L^*\,$'s + U-Grounding language, +\cite{ww5} +showed its +IS$_D(A)$ formalism +could prove +all $A$'s $\Pi_1^*$ theorems and simultaneously +verify its +Level-1 +consistency under +\txl{1} deduction. + +\smallskip + +\item[ B. ] +Two negative results, tightly complementing +item A's +positive result, +were exhibited +in +\cite{sp0,ww2,wwlogos,ww7}. The first +was that \cite{sp0,ww2,ww7} showed +most +systems +are +unable to verify their +Level-0 consistency under +semantic tableaux +deduction, + when they included +statement +\eq{totdefxm}'s ``Type-M'' +axiom that multiplication +is a total function. Moreover, \cite{wwlogos} +offered an alternate +form +of this + incompleteness +result, +showing statement +\eq{totdefxa}'s +{\it +far weaker} +Type-A +systems +cannot +verify +their Level-0 consistency under +\txl{2} deduction. +\ennd + + + + +The contrast between these +positive and negative results +has + led to our conjecture that +automated +theorem provers +are likely + to +eventually +achieve +a fragmentary part of the ambitions +that were +suggested by Hilbert +in +$**\,$. +This is because +the question of whether a +formalism can support an +{\it idealized Utopian} +conception of +its own consistency is {\it +different} from +exploring the degrees to which +theorem-provers +can possess +a {\it fragmentary +knowledge} of +their own +consistency. +The +Incompleteness Theorem +has demonstrated +an Utopian idealized form of self-justification +is unobtainable, +but our research has found some +diluted +cousins +of this construct are +feasible +%%% hhhh +and warrant examination. + + +%%%bbbbb +In summary, +%as a reader examines the remainder of this article, +it should be kept in mind, +during the remainder of this article, +that the Hilbert-Bernays Derivability Conditions +\cite{HP91,HB39,Mend} +impose severe limits upon any evasion of +the Second Incompleteness Theorem. +% that are inexorable. +On the other hand, +it appears that a + human's + faith in his own consistency +is an essential +prequisite to gain the needed + psychological +motivation for +% cogitating. +stimulating cogitation? +% motivate to cogitate. +%cogitation, is also a non-trivial agent. +(This is why we suspect Hilbert was never willing +to concede that all facets of his consistency program +%would be +were +hopeless.) +A broad theme of this paper will, +% thus +thus, +be that it +is helpful to distinguish between the goals of +a +theoretical-oriented study of arithmetic from +that of +a more engineering-styled approach, +since the +Second Incompleteness Theorem is a perfect result +from the first perspective while it permits +for +% some +well-defined +limited-scale part-way exceptions from +the second vantage point. + +%% Above sentence replaces below + + +%% Our interest in +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% was +%% % stimulated by such +%% raised by these +%% considerations. + + +%% It is for this reason that +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% from the preceding two paragraphs, +%% warrant investigation. +%% +%are so important. + + +%% Their +%% two subtle contrasts will be our +%% main +%% focus +%% % of our attention +%% %in the remainder of this article. +%% in the rest of this article. +%% + + +\section{The IS$_D(A)$ Axiom System} +\label{pppp4} + + +\label{sect4} + +In a context where $~A~$ denotes any axiom +system using + $L^*\,$'s +U-Grounding language, IS$_D(A)$ +was defined +in \cite{ww5} +to be an axiomatic +formalism capable of recognizing all of +$A$'s $\Pi_1^*$ theorems and +corroborating +its own Level-1 consistency under $D$'s deductive method. +It +consisted of the +following four +groups of axioms: +\begin{description} +\item[Group-Zero:] +Two of the Group-zero axioms +did +% will +define +the +constant-symbols, +$\bar{c}_0$ +and $\bar{c}_1$, +designating the integers of 0 and 1. +The +Group-zero axioms +will +also define the +growth functions of addition and +$~Double(x) \, = \, x+x.~$ +The +net effect of these +axioms will be to set up a machinery to +define +any +integer +$~n \geq 2~$ +using fewer than +$3 \cdot \lceil \, $Log$~n~ \rceil \,$ +logic symbols. + + + + + +\item[Group-1:] +This axiom group +did +% will + consist of a +finite set of $\Pi_1^{*} $ sentences, denoted as $~F~$, which +can prove any $\Delta_0^*$ sentence that +holds true under the standard model of the natural numbers. +(Any finite set of +$\Pi_1^{*} $ sentences $~F~$ +with this property +may be used to define Group-1, +as \cite{ww5} noted.) + + + +\item[Group-2:] +Let $\ulxyz \Phi \urxyz$ denote +$\Phi$'s G\"{o}del Number, and +HilbPrf$_A(\ulxyz \Phi \urxyz,p)$ denote a +$\Delta_0^{*} $ formula indicating +$~p~$ is a +Hilbert-styled proof of +theorem $~\Phi~$ from +axiom system $A$. +For each $\Pi_1^{*} $ sentence $\Phi$, the +Group-2 schema +of \cite{ww5} +did +% will + contain an axiom of +form \eq{group2}. +(Thus IS$_D(A)$ can trivially prove + all $A$'s +$\Pi_1^{*} $ theorems.) +\begin{equation} +\forall ~p~~~\{~ \mbox{HilbPrf$_A(\ulxyz \Phi \urxyz,p)$} + ~~ +\Rightarrow ~~ \Phi~~\} +\label{group2} +\end{equation} +\item[Group-3:] +This final part of the IS$_D(\aaa)$ +essentially represented +% will be +a +self-referencing +$\Pi_1^*$ +axiom, +indicating +IS$_D(\aaa)$ meets +\textsection 3's criteria of being +``Level-1 consistent'' +under deductive method $D$. +It +amounts, +%is, +thus, +to the following declaration: +\begin{quote} +\# $~${\it No two +proofs exist +for +a $\Pi_1^{*} $ sentence +and its negation, when +$D$'s deductive method is applied to an axiom system, +consisting of +the {\it union} +of +Groups 0, 1 and 2 with {\bf $\,$this sentence$\,$} +(looking at itself).} +\end{quote} + +One encoding of \#, +$\,$as a self-referencing +$\Pi_1^{*} $ +axiom, +appears + in +\cite{ww5}. +%% hhhh0000000000 +Thus, +the +below +sentence +\eq{group3} +represents +\cite{ww5}'s +$\Pi_1^{*}\, $ styled +encoding for$~$ + \# +in a context where: +\bed +\item[ i. ] +$~~\mbox{Prf} \, _{\mbox{IS}_D(A)}(a,b) \, $ is +a + $\Delta_0^{*} $ formula +indicating +that +$ \, b \, $ is a proof + of a theorem $\, a\,$ +under + $\mbox{IS}_D(A)$'s axiom system +and $D$'s deduction method, +$\,~$and +\item[ ii. ] +$~~$Pair$(x,y)$ is a $\Delta_0^{*} $ formula +indicating +that $ \, x \, $ is a + $\Pi_1^{*} $ sentence +and +% that + $ \, y \, $ +represents +$ \, x \,$'s negation. +\end{description} +%% A summary of the formal techniques that +%% \cite{ww5} used to encode +%% sentence +%% \eq{group3} is provided in Appendix B. +\end{description} +\begin{equation} +\forall ~x~\forall ~y~\forall ~p~\forall ~q~~~~ \neg ~~ +[~~ \mbox{Pair}(x,y)~ \wedge ~ +~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(x,p)~ +\wedge ~ ~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(y,q)~ ] +\label{group3} +\end{equation} + +\begin{remark} \label{remc} +\rm +A +fully formal +summary of the techniques that +\cite{ww5} used to encode +%the +sentence +\eq{group3} is provided by +the combination of Appendices B and C. +The former appendix summarizes our +methods for generating the G\"{o}del numbers +of semantic tableaux and \txl{k} proofs +in an optimally compressed manner. +The latter appendix explores how +sentence +\eq{group3}'s self-referencing statement is precisely encoded. +\end{remark} + +{\bf Notation.} An operation $~I(~\bullet~)~$ that maps +an initial axiom system $\,\aaa \,$ onto an alternate +system $\,I(\aaa)\, $ will be called {\bf Consistency Preserving} +iff $\,I(\aaa)\, $ is consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers. In this +context, +\cite{ww5} demonstrated: + + +\begin{theorem} +\label{ttt1} +\label{thold} +Suppose +the symbol $D$ denotes either semantic +tableaux deduction or its \txl{1} generalization. +Then the IS$_D(~\bullet~)~$ mapping operation is consistency preserving +(e.g. +IS$_D(\aaa) $ +will be consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers). +\end{theorem} + +We emphasize +the most difficult part of \cite{ww5}'s +result was +neither the definition of its +IS$_D(\aaa) $'s axiom system nor the +$\Pi_1^*$ fixed-point + encoding of \eq{group3}'s Group-3 axiom. +Instead, +the key challenge + was the +confirming +of \thx{thold}'s +``Consistency Preservation'' +property. + + +The +confirming of +this +property +is +subtle +because its invariant breaks down when +$~D~$ is a deduction method only slightly stronger than +either semantic tableaux or \txl{1} deduction. +Thus, Pudl\'{a}k's and Solovay's +work \cite{Pu85,So94} +implies \thx{thold}'s analog fails when $D$ represents +Hilbert deduction, and \cite{wwlogos} showed its generalization + fails +even when $D$ represents \txl{2} deduction. + + + + + + + + +\section{A Finitized Generalization of \thx{thold}'s Methodology} +\label{pppp5} + + +\label{sect5} + +%%%mmmm +One +difficulty with IS$_D(\aaa)$ +was +is +that it +employed +an infinite number of different +incarnations of +sentence \eq{group2} +in its Group-2 scheme (since it contained one incarnation +of this sentence for each $\Pi_1^*$ sentence $\Phi$ in +$L^*\,$'s language). Such a Group-2 schema is awkward because +it simulates $A$'s +$\Pi_1^*$ +knowledge almost via a brute-force +enumeration. + + +Our Definition \ref{dd-is2} and Theorems +\ref{ttt2} and \ref{ttt3} will show how +to +mostly +overcome this problem by +compressing the infinite number +of +instances of sentence \eq{group2} in +IS$_D(\aaa)$'s Group-2 schema into +a purely finite structure. + +\smallskip + +\begin{definition} +\label{dd-is2} +\rm +Let $~\beta~$ denote any +finite set of +axioms that have + $\Pi_1^*$ encodings. +Then +\I2 +will denote an axiom system, +similar to IS$_D(\aaa)$, except +its Group-2 +scheme will employ $~\beta\,$'s set of axioms, +instead of using an infinite number of applications +of +statement \eq{group2}'s scheme. +(Thus, +the +{\it ``I am consistent''} statement +in \I2's Group-3 +axiom will be the same as before, except that +the {\it ``I am''} +fragment of its +self-referencing +statement +will reflect +these + changes in Group-2 in the obvious manner.) +\end{definition} + + + +\begin{theorem} +\label{ttt2} +Let + $D$ again denote either +semantic +tableaux +or \txl{1} deduction, +and $\beta$ again denote a set of +$\Pi_1^*$ axioms. +Then +\I2 +will be consistent whenever all +$\beta$'s axioms hold +true under the standard model. +(In other words, + \I2 +will satisfy an analog of \thx{ttt1}'s +consistency preservation property for IS$_D(\aaa) $.) +\end{theorem} + +%%bbbb +\thx{ttt2}'s +proof +is almost identical to +\cite{ww5}'s proof of \thx{ttt1}. +Its proof is too lengthy to repeat here. +Instead \textsection \ref{newppp9} +will +briefly summarize its +%% +%% provide +%% a +%% brief +%% %detailed +%% % an intuitive +%% summary +%% of the +%% formal +%% % germane +%% +proof. +This +abbreviated discussion +%% discourse +should be sufficient to explain +the gist behind the +proof's core +%needed +formalism, +%proofs, +without delving into +\cite{ww5}'s +full +%%%%% too many +%full +% formal +details. + +%%bbbb +Our next definition will enable us to formalize +the main application of +\thx{ttt2} that will be considered +here. +%during the present article. +It will essentially explain how +{\bf finite-sized} + self-justifying + logics + can provide an + {\bf infinite amount } + of + ``kernelized'' + $\Pi_1^*$ +styled +information. + + + +%%% It will. +%%% not be +%%% repeated in this extended abstract. +%%% Instead, +%%% this section +%%% will apply +%%% \thx{ttt2} +%%% to +%%% show how +%%% {\bf finite-sized} +%%% self-justifying +%%% logics +%%% can provide an +%%% {\bf infinite amount } +%%% of +%%% ``kernelized'' +%%% $\Pi_1^*$ information. +%%% + +\begin{definition} +\label{dkern} +\rm +Let +Test$_i(t,x)$ +denote any $\Delta_0^*$ formula, +and $~\ulcorner \Psi \urcorner ~$ denote +$\, \Psi\,$'s G\"{o}del number. Then +Test$_i(t,x)$ will be called a {\bf Kernelized Formula} +iff Peano Arithmetic can prove every $\Pi_1^*$ sentence +$~\Psi~$ satisfies \eq{testker}'s +identity: +\beq +\label{testker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +There are +infinitely +many + $\Delta_0^*$ predicates +Test$_1(t,x)$, Test$_2(t,x)$, Test$_3(t,x)$ ... +satisfying this kernelized condition +(one of which is illustrated by Example \ref{eex1}). +An enumerated list of all +the available kernels +is +called a {\bf Kernel-List}. +\end{definition} + +\begin{example} \label{eex1} \rm +The set of +true $\Sigma_1^*$ sentences is +r.e. +This +implies +there +exists a $\Delta_0^*$ formula, +called say Probe$(g,x)$, +such +that $~g~$ +is +the G\"{o}del number of +a $\Sigma_1^*$ statement that holds true in the Standard +Model +if and only if +%iff +\eq{e-probe} is true: +\beq +\label{e-probe} +\exists ~x~~~ \mbox{Probe}(g,x)~\wedge~ x \geq g +\enq +Now, let Pair$(t,g)$ denote a $\Delta_0^*$ formula +that specifies $~t~$ is the G\"{o}del number of +a $\Pi_1^*$ statement and + $~g~$ is +the $\Sigma_1^*$ formula which is its negation. +Then our notation implies +that + $~t~$ +is +a true + $\Pi_1^*$ statement +if and only if \eq{e-2probe} holds true: +\beq +\label{e-2probe} +\forall ~x~~~ +\neg~[~\exists ~g ~\leq~x~~~~~ \mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)~~] +\enq +Thus if +Test$_0(t,x)$ +denotes the $\Delta_0^*$ formula of +$~ \neg~[~\exists ~g \, \leq \, x~~ +\mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)]$, +it +is one example of what +Definition \ref{dkern} +would +call a +``Kernelized Formula''. +\end{example} + +\begin{definition} +\label{def3} +\rm +Let us recall +Definition \ref{dkern} +defined +{\bf Kernel-List} to be an enumeration of +all the +kernelized formulae +Test$_1(t,x)$, + Test$_2(t,x)$, Test$_3(t,x)...~$. +Assuming +Test$_i(t,x)$ is the $i-$th element in this +list +and +$\Psi$ is an arbitrary $\Pi_1^*$ sentence, +the +{\bf i-th Kernel Image} +of $\, \Psi \,$ + will be +defined as +the +following $\Pi_1^*$ +sentence: +\beq +\label{imagker} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +\end{definition} + +\begin{example} \label{eex2} \rm +The Definitions +\ref{dkern} +and \ref{def3} suggest that there is a + subtle relationship +between a sentence $~\Psi~$ and its $i-$th kernel image. +This is because +Definition \ref{dkern} +indicates that Peano Arithmetic can prove the invariant +\eq{testker}, indicating that + $~\Psi~$ +is equivalent to + its $i-$th kernel image. +However, a weak axiom system +can be plausibly uncertain about +whether this +equivalence +does formally hold. +This invariant is duplicated below: +\beq +\label{againtestker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq + +% equivalence holds. + +%mm% +Thus if a weak axiom system proves statement +\eq{imagker} (rather than $~\Psi~$), +it +%% may +will + not be able to equate these +two +results +(unless it is able to verify +\eq{againtestker}'s identity). +This problem will apply to \thx{ttt3}'s +formalism. +However, \thx{ttt3} will +% be +still +remain + of much interest +because \textsection \ref{pppp6} will +illustrate a +methodology that +can overcome +many of \thx{ttt3}'s limitations. +\end{example} + + + + + + + +\begin{theorem} +\label{ttt3} +Let $~A~$ denote any +system, +whose + axioms hold +true +in arithmetic's standard model, +and $~i~$ denote the index +of any of +Definition \ref{dkern}'s +kernelized formulae + Test$_i(t,x)$. +Then it is possible to construct a +finite-sized +collection of $\Pi_1^*$ sentences, called say + $\beta_{A,i}$, +where +\ik3 +satisfies the following invariant: +\begin{quote} +If $~\Psi~$ is one of the +$\Pi_1^*$ theorems of + $~A~$ +then \ik3 can prove +\eq{imagker}'s +statement + (e.g. it will prove the +``the $\, i-$th kernelized image'' +of +$~\Psi\,$). +\end{quote} +\end{theorem} + +\newpage + +\noindent +{\bf Proof Sketch:} +Our justification of +\thx{ttt3} will +use the following notation: +\bee +\item +Check$(t)$ will denote a $\Delta_0^*$ formula +that +produces a Boolean value of ``True'' when +$t$ represents the G\"{o}del +number of a $\Pi_1^*$ sentence. +\item + $~\mbox{HilbPrf}_A \,( t , q )~$ +will denote + a $\Delta_0^*$ formula that indicates +$~q~$ is a Hilbert-style proof of the theorem +$~t~$ from axiom system $~A~$. +\item +For any kernelized +Test$_i(t,x)$ +formula, GlobSim$_i$ +will +denote \eq{globsim}'s $\Pi_1^*$ sentence. +(It will be called $A$'s $i-$th +{\bf ``Global Simulation Sentence''}.) +\ene +\beq +\label{globsim} +\forall ~t~~ +\forall ~q~~ +\forall ~x~~\{~~ +[~~\mbox{HilbPrf}_A \,( t , q )~~ \wedge ~~ +\mbox{Check}(t)~~]~~~ +\Longrightarrow ~~~ +\mbox{Test}_i(t,x)~~~ \} +\enq + +%%mm +In this notation, +%%%the requirements of +\thx{ttt3} +shall +%will +be satisfied by any +version of the axiom system \I2, whose Group-2 schema $~\beta~$ +is a finite sized +consistent set of $\Pi_1^*$ sentences +that has +\eq{globsim} +as an axiom. +(This includes +the minimal sized such system, +% which we will +denoted as $~\beta_{A,i}~$, +that has only \eq{globsim} as an axiom.) +This is because +%Thus, +if +$\Psi$ is any +$\Pi_1^*$ theorem of $A$ whose proof +is denoted as $~\bar{p}~$, then both the +$\Delta_0^*$ predicates of +$\mbox{HilbPrf}_A \,( \ulxyz \Psi \urxyz , \bar{p} )$ and +$\mbox{Check}( \ulxyz \Psi \urxyz )$ +will hold true. +%are true. +Moreover, +IS$^{\#}_D$'s +%%%%%%%%%%%%%% \I2's +Group-1 axiom subgroup was defined so that +it can automatically prove all + $\Delta_0^*$ sentences that are true. +Hence, +%Thus, + \ik3 will + prove these two statements and +then automatically +%hence +corroborate (via axiom +\eq{globsim}) the further statement +of: +\beq +\label{interm} +\forall ~x~~ +\mbox{Test}_{\, i \,}(~ \ulxyz \Psi \urxyz ~,~x~ ) +\enq +%Hence +Thus +for each of the infinite number of $\Pi_1^*$ +theorems that $~A~$ proves, the above defined +formalism will prove a matching statement +that corresponds to +its +%% the + $\, i-$th kernelized image. $~~\Box$ + + +%% of +%% each +%% such proven theorem. +%% $~~\Box$ + +\section{ L-Fold Generalizations of \thx{ttt3} } +\label{pppp6} + + + + +\thx{ttt3} +is of +interest +because every axiom system $\,A\,$ +will have +its formalism +\ik3 +prove the + $\, i-$th kernelized image of every + $\Pi_1^*$ theorem that $A$ proves. +This fact is helpful +because +\eq{testker}'s invariance +holds for all $\Pi_1^*$ sentences. +Moreover, our +``U-Grounded'' +$\Pi_1^*$ sentences +capture all +Conventional Arithmetic's +{\it crucial} +$\Pi_1$ +information +because they can +view +multiplication as a 3-way + $\Delta_0^*$ +predicate +Mult$(x,y,z)$ +via +\eq{neweq1}'s +encoding of this predicate. +\begin{equation} +\label{neweq1} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x} \, 100~$? +%hhhh +Is the use of +such a sequence +%use, +for corroborating the Second Incompleteness +Effect +% , thus essentially, +%thereby +resting +% , essentially, +%, at least partially, +upon an +% an inherently +almost +artificial construct +(with + an +inherently +dizzying growth rate) ? +\end{quote} + + + +We will not attempt to derive a Yes-or-No answer to Question $***$ +because +we think that such a direct +response +%%% answer +is too simplistic. +Our point is that +both a positive and negative reply to + $***$ +are useful in different respects. +%% +%% it +%% is one of those epistemological questions that can be +%% debated +%% endlessly. +%% Our point is that $***$ +%% probably does not require a definitive +%% positive or negative answer because both perspectives +%% are useful. +%% +%% Thus, +%% the theoretical existence of a sequence +This because +the theoretical existence of a sequence +integers +of $ y_0, y_1, y_2, ... $, whose binary +encodings are doubling in length, is tempting +from the perspective of +an Utopian view of mathematics, while +awkward from an engineering styled +perspective. +We therefore ask: {\it ``Why not be tolerant +of both perspectives? ''} + +One virtue of +this tolerance is +it +ushers in +a greater understanding +for the statements $*$ and $**$ that G\"{o}del and +Hilbert made during +1926 and 1931. +This +is +because the +Incompleteness Theorem +demonstrates +no +formalism can display +an understanding of its own consistency in an +idealized + Utopian +sense. On the other hand, +\textsection 6 +suggested +these +two +remarks by G\"{o}del and Hilbert + might receive +more sympathetic interpretations, +if one +sought to explore +such questions from a less ambitious +almost engineering-style perspective. + + + + +Our +main thesis is +supported by a +theorem +from \cite{ww6}. It indicated that +tableaux +variations of self-justifying systems have no difficulty +in recognizing that an infinitized generalization of +a computer's +floating point multiplication (with rounding) is a total +function. The latter +differs from integer-multiplication, +by not having its output become double the length of +its input when a number is multiplied by itself. +Thus, the +intuitive +reason +\cite{ww6}'s + multiplication-with-rounding operation +is compatible with self-justification is +because it + avoids the +inexorable +exponential +growth under +rule \eq{smart-squeeze}'s sequence + $ y_0, y_1, y_2 .. ~ $. + +\bigskip + + +%\newpage + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + +%% bbbbbbb +Also, \thx{ttt4} indicates +self-justifying logics +can view +double-precision +integer multiplication +similarly +as + a total function. +In particular for +any arbitrary pair +of integers + $(a,b)$, +let us employ a notation convention where: +\bee +\item +{\bf Size(a,b)} denotes the maximum of +$ \, \lceil \, 1 \, + \,$Log$_2 \,a \, \rceil \, $ +and +$ \, \lceil \, 1 \, + \,$Log$_2 \,b \, \rceil \, $. +% $\, 1 \, + \,$Log$_2 \,b \,$. +\item The quantities +{\bf Left$(a,b)$} +and {\bf Right$(a,b)$} +represent the multiplicative product +of +the integers +$~a~$ and $~b~,~$ insofar as +Right$(a,b)$ +represents the rightmost bits of this product +of length Size(a,b), and +Left$(a,b)$ encodes the remaining bits to the left +of Right$(a,b)$ +(whose length will also be bounded by Size(a,b) ). +\ene +Within this context, +\thx{ttt4} indicates +self-justifying logics +self-justification +are able to view double-precision +integer-multiplication as +a total function. + +%% bbbbb +\begin{theorem} +\label{ttt4} +Let us assume +the $ \,A \,$ in +IS$_D(\aaa)$ and +$\ \beta \,$ in +\I2 +are axiom systems all of whose $\Pi_1^*$ +theorems are true statements under the standard model +of the natural numbers. +Then +if $D$ corresponds to either semantic tableaux or +\txl{1} deduction, +it is possible to formalize +systems +$~A^* \, \supseteq \, A~$ +and +$~\beta^* \, \supseteq \, \beta~$ +such that \js and \ns are self-justifying +extensions of respectively +IS$_D(\aaa)$ and +\I2 +which can recognize +%that +each of +the +double-multiplicative precision +operations of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ +%(that define the double-precision multiplicative product +%of $a$ and $b$) +as total functions. +\end{theorem} + +%% bbbbb +{\bf Proof Sketch;} The justification of \thx{ttt4} +is +% very +similar to +\cite{ww6}'s analysis of +Floating Point Multiplication +(with rounding). Our proof of \thx{ttt4} +will therefore be quite abbreviated. + +%% bbbbb +The first point is that it is +% quite +straightforward +to develop three $\Delta_0^*$ formulae, +called $\theta_1(a,b,y)$, + $~\theta_2(a,b,y)$ +and + $\theta_3(a,b,y)$, +that are the graphs of the functions + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +% Moreover, it +It +is also easy to construct a +finite set of $\Pi_1^*$ sentences, +holding true in the Standard Model, +called $~\gamma~$, +that know how to correctly interpret these three + $\Delta_0^*$ formulae, +insofar as $~\gamma~$ knows: +\bee +\item For each +%fixed +$a$ and $b$, there exists no more +than one integer $~y~$ that satisfies each of our +three $\theta_j(a,b,y)$ formulae. +\item For each +%fixed +$a$ and $b$, +our three $\theta_j(a,b,y)$ formulae +correctly simulate +the +graphs of +the respective +functions of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +\ene +%Moreover since +Since +our U-Grounding language contains the built-in +function primitives of ``Maximum'' and``Double$(x)$'', +the Group-1 component of +IS$_D$ +and IS$_D^{\#}$ +% formalisms +can +easily +verify that +the + operation +$F(a,b)$, defined below is a total function: +\beq +\label{F-def} +~F(a,b)~~=~~\mbox{ Double (Double (Double (Max}(a,b)))) +\enq +This implies, in turn, that +there exists a $\Pi_1^*$ sentence, called $\gamma^*$, that +will enable our formalism to verify that each of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ are total functions (simply because +their output values are less than +$~F(a,b)$'s output). + +The main point is that the hypothesis of \thx{ttt4} + indicated that +all the axioms of + $ \,A \,$ and +$\ \beta \,$ +did hold +true under the Standard Model, +and the preceding paragraph showed the same +was + true for all the axioms in + $~\gamma~$ and $~\gamma^*~$, +Hence all the axioms in +$~A^*~=~A~+~ \gamma~+~\gamma^*~$ +and +$~\beta^*~=~\beta~+~ \gamma~+~\gamma^*~$ +also +hold true in the Standard Model. +By Theorems \ref{ttt1} and \ref{ttt2}, +this implies that +IS$_D(\aaa)$ and +\I2 and are self-justifying formalism +satisfying \thx{ttt4}'s claims. $~~\Box$ + + + +%% \ik3 +%% represents Peano Arithmetic. Then +%% IS$_D(\aaa)$ and \ik3 +%% can formalize +%% two total functions, called Left$(a,b)$ +%% and Right$(a,b)$, +%% where any pair +%% of integers +%% $(a,b)$ +%% is mapped onto +%% the left and right halves of +%% $a$ and $b$'s multiplicative +%% product. + + +\begin{remark} +\rm +\label{rem-new} +One +subtle +%% slightly tricky +aspect is that our positive +results, +involving +\cite{ww6}'s +floating point multiplication +primitive +and \thx{ttt4}'s +analogous +double precision multiplication +operation, +{\it should +not be confused} with a +quite different +exploration of integer multiplication +in the context of our analysis of Herbrand +consistency +in \cite{ww9}. +The latter took advantage +of the fact that +our deployed + Herbrand-styled proofs +%%% in \cite{ww9}'s paradigm , are +in \cite{ww9} were +exponentially +longer than their +tableaux +counterparts +(thus allowing \cite{ww9} +to formalize +a limited use of multiplication). +This was because +% its +\cite{ww9}'s +deductive +methods +were +%%%%% were, inherently, +exponentially +less efficient +at an inherent +level. +Thus + \cite{ww9}'s result, +while +of +%somewhat +%% +%%certainly +%%perhaps +%% +theoretical +%theoretically +interest, +is +%essentially +%%% hhhhh +basically +irrelevant to +the core +engineering environments, +%e.g. +which +constitutes +% are +the + main +% central +focus of + Theorems \ref{ttt1}--\ref{ttt4}. +%% +%% (especially in regards to their +%% particular interpretations +%% given in +%% Remark \ref{rem2}). +%% +\end{remark} + + +%% In other words, Remark \ref{rem-new}'s +%% observation is, once again, connected to +%% the crucial distinction between +%% % an +%% engineering +%% and mathematical viewpoints +%% about +%% the +%% significance of theorem-proving. + + + +%%%bbbb +Remark \ref{rem-new}'s +contrast between + \cite{ww9}'s results and \thx{ttt4} + is, once again, connected to +the distinction between +the +engineering +and mathematical viewpoints +about + the main +intentions +%importance +%significance +of theorem-proving. +% From an engineering perspective, +\thx{ttt4} +is helpful +from an engineering perspective +because most +% of the +pragmatic +%engineering +applications +of integer multiplication +are analogous to either +%% +%% correspond to +%% essentially +%% % what correspond to be +%% the standard computerized word-oriented integer-multiplication +%% primitive +%% %operations +%% or +%% its +%% %their +%% conventional +%% + computerized double-precision +multiplication or its +quadruple-precision or hexagonal +% -precision +% computerized +generalizations. + +\thx{ttt4} +(and its quadruple-precision +and +% hexagonal-precision generalizations) +hexagonal generalizations) +% helpfully +indicate +% such +these +% pragmatic +operations are +% fully +compatible with a formalism recognizing its own +semantic tableaux +%and \txl{1} +consistency. + +\section{A Different Type of Evidence Supporting +Our +Thesis} + +\label{pppp8} + + +Let us recall + Pudl\'{a}k and Solovay +\cite{Pu85,So94} +observed +that +essentially all +Type-S +systems, +containing merely +statement \eq{totdefxs}'s +axiom that successor is a total function, +cannot verify their own consistency under +Hilbert deduction. +(See also related work by +Buss-Ignjatovic \cite{BI95}, +H\'{a}jek and + \v{S}vejdar \cite{Sv7}, +as well as \cite{ww1}'s +Appendix A.) + + +It turns out that +\cite{wwlogos} generalized +these + results to +show that +\ep{totdefxa}'s +Type-A +systems are unable to verify their +own consistency under the +\txl{2} deduction +system +(defined +in +\textsection + \ref{pppp3}). +At the same time, +the IS$_D$ +and IS$^{\#}_D$ +frameworks, +from Sections \ref{pppp4} + and \ref{pppp5}, can verify +their own consistency under +\txl{1} deduction. Our goal in this section will be to +illustrate how the +tight + contrast between these positive and negative +results +is +analogous to the differing growth rates +of +the +sequences +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from + rule \eq{smart-squeeze}. + + + + +During our discussion +$~G_i(v)~$ will denote +the scalar-multiplication +operation that maps +an integer $~v~$ onto +$~ 2^{2^i}\cdot v~$. +Also, $~\Upsilon_i~$ will denote +the statement, in the U-Grounding language, that +declares that + $~G_i~$ is a total function. +Our paper \cite{wwlogos} +proved that $~\Upsilon_i~$ has +a $\Pi_2^*$ encoding. It also implied that $~G_i~$ +satisfied: +\beq +\label{e-Gi} +G_{i+1}(v) ~~~ = ~~~ G_i(~ \, G_i(v)~ \, ) +\enq +It was +noted in \cite{wwlogos} that +this identity +implies one +can construct +an axiom system $ \beta $, comprised of +solely $\Pi_1^*$ sentences, +where +a semantic tableaux proof +can establish +$ \Upsilon_{i+1}$ +from +$ \beta+\Upsilon_i$ +in a constant number of steps. +This implies, in turn, that a \txl{2} proof from +$ \beta $ will require no more that O$(n)$ steps +to prove $ \Upsilon_{n}$ (when it uses the obvious +n-step process to +confirm in chronological order +$~\Upsilon_1 \, , \, \Upsilon_2 \, , \, ... \Upsilon_n ~.~~)$ + + +\smallskip + +These observations are significant because +$G_n(1)=2^{2^n}$. +Thus, +\cite{wwlogos} +% showed +established that +a \txl{2} proof +from $\beta$ can verify +in +only + O$(n)$ steps +that this +quite large + integer exists. + + +\smallskip + +This example is helpful because it illustrates +the difference between the growth speeds +under +\txl{1} and \txl{2} deduction, is analogous +to the +differing +growth +rates +of +the +sequences $ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from rule \eq{smart-squeeze}. +Hence once again, a faster growth-rate +will usher in +the Second Incompleteness Theorem's power +(e.g. see \cite{wwlogos}). + + +This analogy suggests +that the +Second +Incompleteness +Theorem has different implications from the perspectives +of +Utopian and engineering +theories about + the intended +applications of mathematics. Thus, a Utopian +may possibly be + comfortable +with +a +perspective, that contemplates sequences + $ y_0, y_1, y_2, ... $ +with +elements growing in length +at an exponential speed, but many engineers may be +suspicious of such +growths. + + + + + + +A hard-core engineer, +in contrast, might + surmise that the inability of self-justifying +formalisms to be compatible with \txl{2} deduction is +not +as disturbing + as it might +initially +appear to be. +This is +because \txl{2} +differs from + \txl{1} deduction +by producing +exponential growths that are so sharp +that their material realization has no analog +in the everyday mechanical reality that is the +focus of an engineer's +interest. + +Our personal preference is for +a perspective lying +half-way +between +that of an Utopian mathematician and +a hard-nosed engineer. +Its +dualistic +approach +suggests +some form of diluted +partial agreement +with Hilbert's goals +in $**$ (in a context where the broad significance of +the Second Incompleteness Theorem is obviously +undeniable). + + + + + + + + +\section{Outline of \thx{ttt2}'s Proof and +% Exploration of +% Further Discussion +Its Implications} + +\label{new9} +\label{newppp9} + + +The prior two sections of this article +offered an intuitive explanation about why our +self-justifying axiom systems needed omit the +assumption that multiplication is a total function +and +could verify their consistency +% verified their own consistency +only + under +% for +semantic tableaux and +\txl{1} deduction. + + +%%% \txl{1} deduction +%%% (rather than a stronger \txl{2} +%%% rule of inference). + + +We already noted +%that +\thx{ttt2}'s +observation that + IS$_D^{\#}$ +%% proof +%% that +is consistency-preserving +%transformation +has essentially an +analogous +% hhhh +%identical +proof as \cite{ww5}'s +demonstration that +%\K1 + IS$_D$ +is consistency-preserving. +It is not our intention to repeat +such a proof here. + +%%a +%%virtual +%% analog of +%%\cite{ww5}'s proof here. + +Instead, our goal will be to provide a brief overview +of the techniques +%appeared in \cite{ww5}'s proof. This +that \cite{ww5} +had +used. This +overview +will be +% brief but +%%% +%%% will not delve into all \cite{ww5}'s details. +%%% It will, +%%% however, be +%%% +sufficient +for +% so that +a reader +to +% can quickly +appreciate +the +% main +underlying +intuition. + +%the underlying intuition. + + +%%gain an intuition behind the +%%underlying nature +%% of Theorems \ref{ttt1} +%%and \ref{ttt2}. + +\bigskip + +More precisely, +two different types of proofs of \thx{ttt1} +had appeared in our 2002 conference paper \cite{tab2} +and subsequent journal paper \cite{ww5}. The +latter +%result +was more appropriate for an archival +journal because its self-justification result +applied to both semantic tableaux deduction and its +\txl{1} generalization. +The more compressed conference paper +\cite{tab2} proved the analog of \thx{ttt1} +only for tableaux deduction +(using a technique +% thus +that was +%pleasantly +somewhat +shorter +than \cite{ww5}'s more elaborate +result). +Our +% brief +summary of \thx{ttt1}'s +proof, +here, + will focus on the semantic tableaux deduction +methodology so it can apply to either of +\cite{tab2} +or \cite{ww5}'s +methods. +%results. + +%% +%%Our discussion +%%%in this section +%%will focus mostly on +%%\cite{ww5}'s more +%%sophisticated +%% result, but it should +%%be also helpful to readers who +%%wish to +%%examine only +%%\cite{tab2}'s +%%simpler +%%but +%%%% +%%%% and slightly simpler +%%%% presentation of a +%%%% +%%less ambitious result. + +Both of \cite{tab2,ww5} +%% had +% formalisms were +justified \thx{ttt1} +by means of proofs by +contradiction. +Thus if \thx{ttt1} +was false, +they +% both +noted +% then there would exist +%two +a pair of +proofs +%of +for +a $\Pi_1^*$ sentence and its negation +would exist +from +IS$_D(\aaa) $. + + + +Let us call these two proofs $P$ and $Q$. +Then \cite{tab2,ww5} both +showed +(using different constructions) that +one could construct from $(P,Q)$ +two other proofs $(p,q)$ of another +$\Pi_1^*$ sentence and its negation +such that: +\beq +\label{catch} +\mbox{Max}(p,q) ~~ < ~~ +\mbox{Max}(P,Q) +\enq +The inequality in \eq{catch} +is significant because it +will enable our proofs-by-contradiction to establish + the non-existence +of an ordered pair + $(P,Q)$ violating \thx{ttt1}'s assumption. +This is because +%otherwise +\eq{catch} +would +otherwise +violate the Principle of Induction by showing +there exists no such minimal ordered pair + $(P,Q)$ +eschewing \thx{ttt1}'s formalism. + +The +exact +details of these proofs by contradictions are too lengthy +%for us +to fully summarize +% them +here. +For the case where $D$ in \thx{ttt1} +is the semantic tableaux deduction method, they used the fact +that if $(P,Q)$ was the ordered pair with +minimal $ \mbox{Max}(P,Q)$ value violating +\thx{ttt1}'s hypothesis, +then one could +isolate +two +particular root-to-leaf paths in the tableaux +proofs $P$ and $Q$ that would enable us to construct an +additional pair $(p,q)$ +that violated \thx{ttt1} and satisfied +\eq{catch}'s inequality. + +This construction of + $(p,q)$ from $(P,Q)$ +utilized the fact that + \thx{ttt1}'s +axiom system + IS$_D(\alpha) $ recognized addition but not multiplication +as a total function. +Otherwise, \thx{ttt1}'s delicate +proof-by-contradiction would collapse entirely +(as a result of +the exponentially faster growth +properties +of multiplication +that was formalized by the +series + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship). + + +These observations reinforce the theme of +\textsection \ref{pppp7} +about the contrast between the slower growing series + $ x_1, x_2, x_3, ... $ +and its exponentially faster counterpart + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship. +These two series defined the +% respective +growth rates produced by the addition and +multiplication function symbols +% with +as, respectively, +$ \, x_n \, = \, 2^{ n+1} \, \, $ and +$ \, y_n \, = \, 2^{2^n} \, $. +They +thus illustrated +% thus, once again, illustrate +how multiplication's faster growth rate +leads to such a +%% +%% The themes of Sections \ref{ppp7} and +%% \ref{ppp8} was that the latter growth rate +%% represented a +%% +dizzying exponential speed-up, +that +% will +% would +makes +one at least partially sympathetic to a +hard-nosed engineer's skepticism about +its +implications. + +%significance. + +Thus if one were to +preclude such a dizzying growth rate then +a partial justification of a diluted version +of Hilbert's consistency program would arise, +in the context of systems possessing +{\it weak but well defined} knowledges of +their own consistency. +On the other hand, if the conventional assumption +that multiplication is a total function is presumed, +then the traditional interpretation of the +Second Incompleteness Theorem will +% , of course, fully +prevail. + + +%% +%% +%% Hence some partial caveats can be attached to the +%% Second Incompleteness Theorem that carry some +%% credibility from an hard-nosed engineering +%% perspective, while +%% simultaneously +%% they +%% fail to apply to a +%% %at the same time not +%% %be germane to a fully +%% pristine +%% mathematical +%% perspective +%% focused around the +%% Logical Platonism +%% (that G\"{o}del +%% had +%% explicitly explored). +%% %wrote about). + + +% \large + +% \baselineskip = 1.5 \normalbaselineskip + + +\section{Related Reflection Principles} + + +\label{pppxppp10} + +An added point is that there are many +types of +self-justifying systems available, with some +better suited for engineering environments +than others. + + +% bbb +For instance, our initial 1993 paper \cite{ww93} +employed a Group-3 {\it ``I am consistent''} axiom +that was much weaker than +the current specimen. +The distinction was that +\cite{ww93}'s self-consistency declaration +excluded +merely +the existence of a semantic tableaux proof +of $0=1$ from itself, while +the +sentence \eq{group3} is +more elaborate because +it excludes the existence of simultaneous proofs +of a $\Pi_1^*$ theorem and its negation. + + +Ideally, one would like to +develop self-justifying +systems $~S~$ that +% could +can +corroborate the validity +of \eq{brxefl}'s reflection principle for all sentences +$\Phi$. +\beq +\label{brxefl} +\forall p ~~[~ Prf_S^D(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +L\"{o}b's Theorem +establishes, +however, + that all + systems $S$, +containing +Peano Arithmetic's +strength, are able to prove +\eq{brxefl}'s invariant +{\it only in the degenerate case} where they +do +prove $\Phi$ +itself. Also, the Theorem 7.2 from \cite{ww1} +showed +essentially all +axiom systems, +{\it weaker} than Peano Arithmetic, are unable to prove \eq{brxefl} +for all $\Pi_1^*$ sentences $\Phi$ +simultaneously. Thus, +\thx{ttt5} +will be near optimal: + +%% xxxxx + +%%% bbbbb +\begin{theorem} +\label{ttt5} +Let us recall that the difference between \thx{ttt1}'s +axiom system + IS$_D(A)$ +and \thx{ttt3}'s formalism +\ik3 +was that the latter replaced + IS$_D(A)$'s infinite-sized Group-2 axiom schema +with \ik3's compact 1-sentence axiom +\eq{globsim}, so that the latter system could at least verify +\eq{t5kern}'s kernelized statement +for +each $\Pi_1^*$ theorem that $A$ proved. +\beq +\label{t5kern} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +Let likewise $IS^\lambda_\#( \, \beta_{A,i} \, )$ +denote the modification of \cite{ww1}'s $IS^\lambda(A)$ +self-justifying +system +that replaces the latter's Group-2 schema with +\eq{globsim}'s more compact single-sentence axiom declaration +(and +% again +%accordingly +then +has its Group-3 {\rm ``I am consistent''} +axiom statement +reflect this change, +once again). +Then in a context where ``semtab'' is an abbreviation for +semantic tableaux deduction, +the formalism $IS^\lambda_\#( \, \beta_{A,i} \, )$ +will be able to: +\bee +\item +Verify that +semantic tableaux + deduction supports the +following analog of +\eq{brxefl}'s +self-reflection principle +under + $IS^\lambda_\#( \, \beta_{A,i} \, )$ +%%% $S$ +for any +$\Delta_0^*$ and $\Sigma_1^*$ +sentences $\Phi~~$: +\beq +\label{nrxefl} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +\item +Verify +\eq{rdilute}'s more general +{\bf ``root-diluted''} reflection principle +for $IS^\lambda_\#( \, \beta_{A,i} \, )$ +whenever +$\theta$ is $\Sigma \, _{1}^*$ +and + $\Phi$ is a $\Pi_2^*$ sentence of the +form ``$~\forall u_1 ... \forall u_n~~ + \theta(u_1... u_n )~$''. +\beq +\label{rdilute} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Longrightarrow ~ \forall x~ + \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ + \theta(u_1... u_n ) ~] +\enq +\ene +\end{theorem} + + + +%% bbbb +As is suggested by the similarity between the +definitions of $IS^\lambda(A)$ and + $IS^\lambda_\#( \, \beta_{A,i} \, )$, +the proof of \thx{ttt5} is essentially +identical to +\cite{ww1}'s +analysis of $IS^\lambda(A)$. +For the sake of brevity, we will not repeat +the relevant proof here. + + + + +%%% +%%% \begin{theorem} +%%% \label{tts5} +%%% For any +%%% input axiom system $A$, +%%% it is possible to extend the self-justifying +%%% IS$_D(\aaa)$ and \ik3 +%%% systems, +%%% from Theorems \ref{ttt1} and \ref{ttt3}, +%%% so +%%% that the resulting +%%% self-justifying logics +%%% $S$ +%%% can also: +%%% \bee +%%% \item +%%% Verify that \txl{1} deduction supports the +%%% following analog of +%%% \eq{brxefl}'s +%%% self-reflection principle +%%% under $S$ +%%% for any +%%% $\Delta_0^*$ and $\Sigma_1^*$ +%%% sentences $\Phi~~$: +%%% \beq +%%% \label{nrxefl} +%%% \forall p ~~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Rightarrow ~~ \Phi~~] +%%% \enq +%%% \item +%%% Verify +%%% \eq{rdilute}'s more general +%%% {\bf ``root-diluted''} reflection principle +%%% for $~S~$ +%%% whenever +%%% $\theta$ is $\Sigma \, _{1}^*$ +%%% and +%%% $\Phi$ is a $\Pi_2^*$ sentence of the +%%% form ``$~\forall u_1 ... \forall u_n~~ +%%% \theta(u_1... u_n )~$''. +%%% \beq +%%% \label{rdilute} +%%% \forall p ~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Longrightarrow ~ \forall x~ +%%% \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ +%%% \theta(u_1... u_n ) ~] +%%% \enq +%%% \ene +%%% \end{theorem} +%%% + + +%% \thx{ttt5}'s proof +%% will +%% rest +%% upon +%% hybridizing +%% the techniques from +%% \cite{ww1}'s +%% tangibility reflection principle +%% with Theorem +%% \ref{ttt3}'s +%% methodologies, +%% in a +%% natural +%% very +%% manner. +%% %hhhh +%% Its proof is summarized in Appendix D. + + + +% \baselineskip = 1.21 \normalbaselineskip +\parskip 4pt + +Analogous to our +other +results, +\thx{ttt5} +reinforces +% the +our + theme about how +exceptions +to +the Second Incompleteness Theorem +may +appear to +be +{\it quite +minor} +from the perspective of +an Utopian +view of mathematics, +while +being +significant +from an engineering standpoint. +In \thx{ttt5}'s +particular case, +this is +because: +\bed +\item[A. ] +The ability of \thx{ttt5}'s +system +%%% $S$ +to +support +\eq{nrxefl}'s +self-reflection principle +under +tableaux +%\txl{1} +proofs for +any + $\Delta_0^*$ and $\Sigma_1^*$ sentence, +as well as +to +support +\eq{rdilute}'s +root +reflection principle +for $\Pi_2^*$ sentences, +is +clearly +significant. +\item[B. ] +The incompleteness result +of \cite{ww1}'s +Theorem 7.2 +imposes, +however, +sharp limitations upon Item A's +generality +(in that it cannot be extended to +fully all + $\Pi_1^*$ sentences, +{\it in an undiluted sense).} +\ennd +% +% \noindent +Thus, +the tight fit +between + A and B +is +reminiscent of +other +slender +borderlines, +that separated +generalizations and +boundary-case exceptions +for the +Incompleteness Theorem, +explored +earlier. +Once again, +the Second Incompleteness +Theorem +is +seen + as robust, +from an +idealized +Utopian perspective on mathematics, +while +permitting +caveats +from +engineering +styled +perspectives. + +This + dualistic +viewpoint +allows one to +nicely +share +{\it partial (and not full)} +agreement with +Hilbert's +main aspirations in $**$, +$\,$while also + appreciating +the + stunning +achievement +of +the Second Incompleteness Theorem. + + + + + + + + +\section{Concluding Remarks} + +\label{ppppp10} + + +At a purely technical level, +this article has reached beyond +our prior papers in +several +respects, +including +\textsection \ref{pppp5}'s demonstration +that any +initial +system $A$ +can have a kernelized image of its + $\Pi_1^*$ knowledge duplicated by +\ik3's {\bf strictly finite sized} +self-justifying +system, +as well as +%and also by + Section +\ref{pppp6}'s +and +Remark \ref{rem2}'s +quite + pragmatic + L-fold generalizations +of +\thx{ttt3}. + +% this result. + + + + +These +perspectives +%results +help resolve the mystery +that has +enshrouded +the Second Incompleteness Theorem and the statements +$*$ and $**$ +of G\"{o}del and Hilbert. +This is because +we have +{\it meticulously separated} +the goals of a +pristine theoretical study of mathematical +logic +from +those of +a + {\it +finite-sized} +axiomatic +subset of mathematics, +intended + for modeling +mostly +an engineering environment. + + + + + + + + + +There is no question that +G\"{o}del's Second +Theorem +is ideally robust, +relative to a +purely pristine +approach to mathematics. +On the other hand, we suspect +Hilbert +was +{\it half-way +correct} by + speculating +in + $**$ +about humans +possessing +a knowledge +about + their own consistency, +{\it in at least some +% strikingly + weak +and + tender sense,} as +essentially a +% fundamental +prerequisite +for +{\it psychologically + motivating} +their cogitations. +%%%% hhhhhh +Thus in a context where the limitations of axiom systems, +that fail to recognize multiplication as a total function, +are manifestly +obvious, +%% +%% +%% +%% even when +%% such systems +%% duplicate +%% Peano Arithmetic's +%% central +%% $\Pi_1^*$ knowledge, +%% +it is legitimate to +inquire + whether some +future +specialized +21st century computers + might +find +some +{\it partial-albeit-and-not-full} redeeming +value +in formalisms +having +{\it weak-style} + knowledges +of +their + \txl{1} consistency, +as well as possessing a knowledge of +Peano Arithmetic's +$\Pi_1^*$ theorems. + + +%%%% hhhh +%%More precisely, +Sections +\ref{pppp5}-\ref{pppxppp10} +were, +thus, + intended +to provide +a +unified +broad-scale +interpretation of our +diverse + earlier +results +that had appeared +%appearing +in \cite{ww93}-\cite{ww9}. +%from +%\cite{ww93,sp0,ww1,ww2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +In a +context where +the +Incompleteness +Theorem is +%% +%% firmly +%% understood +%% to be +%% + sufficiently +ubiquitous + to preclude Hilbert's +aspirations in $**$ +from +ever +being fully realized, +they show +how +some +{\it fragmentary portion} of Hilbert's +conjectures +can +be corroborated by +{\it judiciously weakened} logics, +using a formalism, that is +{\it much less} than ideally robust, +{\it although +not fully immaterial}. + +%\medskip + +\bigskip + +Such partial evasions of the Second Incompleteness Effect +are certainly not broad-scale, but they +do corroborate a fragment of what G\"{o}del and Hilbert +%referred to +had +sought +as +% ideal +their +desired +goals, +expressed + in the statements $*$ and $**$. + +\newpage + +%\bigskip + + {\bf Acknowledgments:} $~$I thank + Bradley Armour-Garb and Seth Chaiken for +many + useful suggestions about how to +improve the presentation of our results. +%% I also thank the anonymous referees for their comments. +This research was +partially supported +by NSF Grant CCR 0956495. + + +\small + \parskip 2 pt +\baselineskip = 0.86 \normalbaselineskip + + + +\bibliographystyle{abbrv} +\bibliography{b15} + + + + +% eeee end end +% \newpage + + + + + +%\large +% \baselineskip = 1.5 \normalbaselineskip + +% \baselineskip = 1.2 \normalbaselineskip + + \parskip 4 pt + +\ssspace + +\section*{Appendix A: Definition of a +Semantic Tableaux Proof } + +The +definition of a semantic tableaux proof, +provided here, +will be similar to analogous definitions used in +say Fitting's or Smullyan's textbooks + \cite{Fi90,Smul}. + +%% For simplicity +%% during our discourse, +%% a sentence $~\Psi~$ +%% will be called PRENEX$^*$ iff it is written in the +%% form $Q_1 \, x_1~Q_2\, x_2...~Q_n \, x_n~~\theta(x_1,x_2...x_n)~$ +%% where $~\theta(x_1,x_2...x_n)~$ is a $\Sigma_0^-$ formula +%% and $Q_i$ denotes either the symbol $\forall$ or $\exists$. + +During our +discussion, a +% discourse, a +{\bf $\Phi$-Based Candidate Tree} for +an axiom system $\, \alpha \,$ +will be defined +to be a tree structure +whose root corresponds to +the sentence $~\neg \, \Phi~,~$ rewritten in +prenex normal form, and whose all other nodes are +either axioms of $~\alpha~$ or deductions from higher +nodes of the tree +(using the Rules 1-6 defined below). +More precisely, our six rules +(below) + have +``$~ \cal{A} ~ \longmapsto ~ \cal{B} ~$'' denote +that $~ \cal{B} ~$ +is a valid deduction +from $~ \cal{A} ~$. +They +% thus +specify when such a +descendant +node $~ \cal{B} ~$ is allowed to +appear below an ancestor $~ \cal{A} $ +%% +%% is an ancestor of $~ \cal{B} ~$ +%% in the candidate tree $~T~$. In this notation, the deduction +%% rules allowed +%% +in a candidate tree: +\begin{enumerate} + \parskip 1 pt +\item $~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Upsilon +~$ +and +$~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Gamma ~$ . +\item $~ \neg \,\neg \, \Upsilon ~ \longmapsto ~ \Upsilon~$. +Other +% valid Tableaux +rules for +the ``$~ \neg ~$'' symbol include: $~$ +$~\neg ( \Upsilon \vee \Gamma ) ~ \longmapsto ~ \neg \Upsilon +\wedge \neg \Gamma~$, +$ \, \neg ( \Upsilon \Rightarrow \Gamma ) \, \longmapsto \, \Upsilon +\wedge \neg \Gamma \, $, +$ ~~~~\, \neg ( \Upsilon \wedge \Gamma ) \, \longmapsto \, \neg +\Upsilon \vee \neg \Gamma \, $, + $~ \, \neg \, \exists v \, \Upsilon (v) \, \longmapsto \, +\forall v \neg \, \Upsilon (v) \, $ and + $ ~\, \neg \, \forall v \, \Upsilon (v) \, \longmapsto \, +\exists v \, \neg \Upsilon (v)$ +\item A pair of sibling nodes $~ \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof +tree when their ancestor is +$~\Upsilon \, \vee \, \Gamma~$. +\item A pair of sibling nodes $~ \neg \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof + tree when their ancestor is +$~\Upsilon \, \Rightarrow \, \Gamma~$. +\item $~ \exists v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(u) ~$ +where $~u~$ denotes a newly introduced ``Parameter Symbol''. +\item $~ \forall v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(t) ~$ +where $~t~$ denotes a ``Composite Term''. +These terms here are +built out of +combination of + the U-Grounding Function symbols, +the constant symbols representing ``0'' and ``1'' +and the parameter symbols $~u_1,u_2,..,u_n~$, +where each +%symbol +$~u_i~$ {\bf was previously} +introduced by +% instance of +applying +Rule 5 +%applying +to +an ancestor +of the node storing +% the current new deduction + ``$ ~ \, \Upsilon(t) ~$''. +\end{enumerate} +Define a particular leaf-to-root branch in a candidate +tree $~T~$ to be {\bf Closed} iff it contains both some sentence +$~ \Upsilon ~$ and its negation $~ \neg \, \Upsilon ~$. + A {\bf Semantic +Tableaux} proof of $~\Phi~$ will then be defined to be +a candidate tree whose root stores the sentence +$~ \neg \Phi~$ (written in prenex normal +form) and all of whose root-to-leaf branches are +closed. + +% All our theorems in the current article have, + +Our +% discussion in the +current article has, +% will, +for simplicity, +used the preceding definition for a semantic tableaux proof. +Some of our prior articles +%have +used a minor modification +of this definition where there were two additional deduction +rules for ``bounded quantifiers'' of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$''. +It is technically unnecessary to use special rules for +such bounded quantifiers because these two expressions +can be treated as being equivalent to +\eq{bex} and \eq{beu}, respectively. +\beq +\label{bex} +\exists \, v ~~~~ v \leq t~\wedge~ \Upsilon (v) +\enq +\beq +\label{beu} +\forall \, v ~~~~ v \leq t~\Rightarrow~ \Upsilon (v) +\enq +Thus, we technically do not need special Elimination Rules +for bounded quantifiers of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$'' +because statement +\eq{bex} allows the + former to be eliminated +by applying Rules 5 and 1, and likewise +\eq{beu} can +be processed via Rules 6 and 4. + + +%% For simplicity, we will thus rely upon the above 6-part definition +%% of semantic tableaux during the current article. +%% +%% ???? Remove above sentence ??? bbbbbbbbbbbbbbbbb + +\section*{Appendix B: Summary of G\"{o}del Encoding Method} + +Every +%% formalization of either a +generalization and +% a +boundary-case +exception for + the Second Incompleteness +Theorem +does +require + deploying a + G\"{o}del encoding methodology +(to make it well defined). +Such an encoding scheme will be +called +{\bf Optimally Linearly Compressed} if it requires: +\bed +\item[ A. ] +Only +$O(1)$ bits to store +each occurrence +of any +logical symbol +% any of the logical symbols +appearing in a tableaux proof +(except for the objects that +Items 5 and 6 of Appendix A called the $i-$th +``variable'' and ``parameter'' symbols). +\item[ B. ] +No more than +$O(~1~+~$Log$(i) ~)$ bits to +encode + a proof's +$i-$th +``variable'' and ``parameter'' symbols. +(This $O(~1~+~$Log$(i) ~)$ magnitude is unavoidable +because +there is no finite limit to the number of different +variable and parameter objects that may appear in +one of Appendix A's +semantic tableaux proofs.) +\ennd +All our published results about either +generalizations or +boundary-case +exception +for the Second Incompleteness Theorem have used such optimally +compressed encodings. + + +In particular, +our scheme for +encoding +a semantic tableaux proof + will use +the following +24 language symbols: +\begin{enumerate} +\small + \baselineskip = 1.1 \normalbaselineskip +\item The standard connective symbols of +$\wedge ,~ \vee ,~ \neg ,~ \rightarrow ,~ \forall$ +and $~ \exists$. +\item Two +left and two right parenthesis symbols +denoted as: $~(~$ , $~)~$ +$~\underline{\, ( \,}~$ and $~\underline{\, ) \,}.~$ +\item +Two symbols to represent the special constants of ``0'' and ``1''. +\item +Eight function symbols for representing for representing +the eight formal U-grounding functions of Addition, Doubling, Subtraction, +Division, Logarithm, etc. +\item +The relation symbols of +``$~=~$'' and ``$~ \leq ~$''. +\item The symbol $~ \hat{V} ~$ for designating +the presence of a basic variable $~v~$ +in a logical sentence. +\item The symbol $~ \hat{U} ~$ for designating +the presence of a parameter constant $~u~$ +in a logical sentence (which is produced by +Appendix A's +deduction rule 5 for +eliminating +existential quantifiers). +\end{enumerate} +Define a byte to be an unit consisting of six bits. +We +may +%will + think of a proof as +comprising + either + a sequence of +bytes or being an +equivalent +integer +written in base 64. +Each of the 24 symbols (above) will be given +some unique 6-bit code, ranging between 32 and +55. +Our method for representing the presence of +the i-th variable $~v_i$ +will be to encode it is as +a string +comprised +of +$\, \lceil \, log_{\, 32 \,}(i+1) \, \rceil ~+~1~$ bytes, where the +first byte is the ``$\, \hat{V} \,$'' symbol and the remaining bytes +encode +i as a base-32 number. +% with the convention that the lead bit in each +%byte's 6-bit sequence is ``0''. +The same convention will be used to denote the presence of +the i-th parameter $~u_i~$ +except its first byte will be the ``$\, \hat{U} \,$'' symbol. + + + +Our notation has employed {\it two types} of +parenthesis symbols because the first pair of +parenthesis symbols will have their usual meaning in punctuating a +mathematical +sentence, whereas the latter pair of symbols + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ +will {\it separate} the individual sentences in +a Semantic Tableaux proof tree. For example, +consider a tree which stores +1) the sentence $~\psi_1~$ as its root, 2) +the sentences $~\psi_2~$ and $~\psi_3~$ as the root's children, and 3) +$~\psi_4~$ as the child of $~\psi_3.~$ There are several +possible notation conventions for using the + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ symbols +to encode a Semantic Proof tree. +Our encoding +convention will +presume +%be that +$~\psi_i~$ +is an ``ancestor'' of $~\psi_j~$ {\it if and only if} the range beginning +with the +parenthesis to $\psi_i$'s immediate left and continuing +to the matching right parenthesis includes +$~\psi_j.~$ +The example of our 4-node proof tree is thus +encoded as: +\begin{equation} +\label{paren} + ~~\underline{\, ( \,}~~ \psi_1 + ~~\underline{\, ( \,}~~ \psi_2~ + ~\underline{\, ) \,}~ + ~~\underline{\, ( \,}~~ \psi_3 + ~~\underline{\, ( \,}~~ \psi_4~ + ~\underline{\, ) \,}~~ \underline{\, ) \,}~~ \underline{\, ) \,}~ +\end{equation} + + +The preceding paragraph summarized our method for +encoding semantic tableaux proofs. Its +generalization +for +the +encoding of \txl{1} proofs is +straightforward. Thus if + $~p_1,p_2,...p_n~$ +collectively constitute +a list of semantic tableaux proofs +then the + natural concatenation +of their byte strings will be the corresponding + \txl{1} +proof. + +This ``Optimally Linearly Compressed'' encoding scheme +is +%noteworthy +essential +because all the core axiom systems, employed +in this article, are Type-A formalisms, that recognize Addition +but not Multiplication as a total function. If such formalisms +were less than optimally compressed then our main theorems +would lose relevance because the formalization +of +unnecessarily expansive encodings would be awkward +in the context of the slow growth properties of +Type-A formalisms. Thus, +our results carry much greater significance when their +% it is useful that our +encodings +of a proof satisfy the maximal compression properties, +% outlined in the first paragraph of +%that are +defined in +this appendix. + + +%% +%% This byte-styled encoding method is approximately analogous +%% to what Wilkie-Paris \cite{WP87} have called +%% a {\it natural B-adic} encoding or a similar +%% counterpart in the H\'{a}jek-Pudl\'{a}k textbook +%% \cite{HP91}. Such +%% compressed encodings are +%% considered to be more +%% meaningful and efficient than an uncompressed encoding method, +%% using say a Prime Number decomposition scheme \cite{Me97} +%% (because the latter has an unnecessarily long bit-length). +%% All our theorems would also be +%% valid for uncompressed +%% encoding methods. +%% However, they are more meaningful when one uses an +%% efficiently compressed +%% B-adic encoding method. +%% +%% %\newpage +%% + + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + + +\section*{Appendix C: Formal Encoding of +%Statmenent \eq{group3}'s +the +Group-3 Axiom} + +Let us recall +%that +Appendix A +reviewed the definition of +a +semantic tableaux +and \txl{1} + proof, + and Appendix B formalized the +encodings +of such proofs. The goal of this appendix +will be to summarize the methodology +%% \cite{ww5} +%% that was +used to define +Statmenent \eq{group3}'s Group-3 +axiom +in \cite{ww5} . + +%%% Passive Voice change in above sentence much +%%% better because it understates my use of \cite{ww5} . + + +%% {\bf More Detailed Description of the Group-3 Axiom:} $~$ +%% A formal description of +%% IS$_D(A)$'s +%% Group-3 axiom is more complicated than the abbreviated +%% descriptions given either by +%% Sentence$~*~$ or by \ep{group3}'s analog. +%% The +%% main added complication is because +%% the Group-3 axiom declares the consistency of +%% a formal set of axioms that includes ``itself'' +%% (in the words of Sentence$~*~).~$ +%% As was noted in Section 1, the notion of an +%% axiom including +%% ``itself'' when it refers to the consistency +%% of an axiom schema dates back to Kleene's 1938 paper \cite{Kl38}. +%% However, Kleene's abbreviated +%% description is insufficient to establish that +%% \ep{group3} can be encoded precisely as +%% a +%% $\Pi_1^*$ sentence. The next two paragraphs will +%% explain how this can be done. + +Let + UNION($A$) denote the union of IS$_D(A)$'s Group-Zero, +Group-1 and Group-2 axioms. +It will be useful to employ the following notation: +\begin{description} +\item[ i] $\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)$ +will denote a formula designating +that $~p~$ is a proof of the theorem $~t~$ from the axiom +system UNION($A)$ using the deduction method $~D.~$ +\smallskip +\item[ ii] +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$ +will be a formula stating that +$~p~$ is a proof +(using the deduction method $~D~)~$ + of +a theorem $~t~$ +from the union +of the axiom system +UNION(A) with the added axiom +sentence specified by the integer +$\, h \,$. +\smallskip +\item[iii] + $\mbox{Subst} \, ( \, g \, , \, h \, )$ will denote +G\"{o}del's +classic substitution formula --- which yields TRUE when $\, g \,$ +is an encoding of a formula +and $\, h \,$ is an encoding of a sentence +that replaces all occurrence of free variables in $\, g \,$ with +% the formally +an +encoded term +% of +$~\underx{g}~$ +(that designates $g$'s G\"{o}del number.) +\smallskip +\item[ iv] +$\mbox{SubstPrf}_{~UNION(A)}^D~( \, g \, , \, t \, , \, p \,)$ +will denote the natural +hybridizations of the constructs from Items (ii) and (iii) +which yields a Boolean value of TRUE exactly when there +exists some integer $~h~$ +simultaneously +satisfying +{\it both} +the conditions + $\mbox{Subst} \, ( \, g \, , \, h \, )$ and +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$. + +\end{description} +Each of (i)--(iv) +can be encoded as $\Delta_0^*$ formulae. +Thus, Appendices C and D of \cite{ww1} +%% thus, + explained how +the first three of these predicates can receive + $\Delta_0^*$ encodings when one applies +the theory of LinH functions +\cite{HP91,Kr95,Wr78}. +Hence, \eq{encode} illustrates +one possible $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{~UNION(A)}^D \,( g , t , p )$'s +graph. (It is +equivalent to +the statement +$~$``$~\exists ~h~[~\mbox{Subst} ( g , h )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D( h , t , p )\, ] \, \,$''$,~$ + but \eq{encode} is + a $\Delta_0^*$ formula --- {\it unlike} the quoted +expression.) +\begin{equation} +\label{encode} +\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)~~~\vee~~~\exists ~h\leq p +~~[~ \mbox{Subst} \, ( \, g \, , \, h \, )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)~] +\end{equation} + +Let us recall that +$\mbox{Pair}(x,y)$ is a $\Delta_0^*$ sentence +specifying that + $~x~$ +and $~y~$ +are +the encodings of + a $\Pi_1^*$ +and $\Sigma_1^*$ sentence, +that are logical negations of each other. +Using + \eq{encode}'s + $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{UNION(A)}^D( g , t , p )$, +we can now explain +how +statement +\eq{group3}'s Group-3 Axiom can +be formally encoded. +Let +$~\Gamma(g)~$ +denote \ep{encode2}'s formula, +% and let + $~n~$ denote $~\Gamma(g)$'s +G\"{o}del number +and $\underx{n}$ +denote a term encoding $n$ in the U-Grounding language. +$~\,$Then +it will turn out that $~$``$~\Gamma(~ \underx{n}~)~$''$~$ +will be a $\Pi_1^*$ sentence +that is equivalent to + this Group-3 axiom. +\begin{equation} +\label{encode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , y , q ) \,] +\end{equation} +More precisely, \eq{newencode2} formalizes the encoding +of + $~$``$~\Gamma(~ \underx{n}~)~$''. +\begin{equation} +\label{newencode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , y , q ) \,] +\end{equation} +%In particular, +Thus, +if we view +$~~$``$~\mbox{SubstPrf}_{~UNION(A)}^D~( \, + \underx{n} \, , \, t \, , \, p \,)~$'' +in \eq{newencode2} +as our formal method of +encoding the concept that was previously informally +called +``$~\mbox{Prf}~_{\mbox{IS}_D(A)}(t,p)~$'' +by Statement \eq{group3}, +then \eq{newencode2} amounts to +the formal encoding of +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration. + +\bigskip + +{\bf Reminder about +the Significance of + \eq{newencode2}'s Encoding :} +The preceding construction +%shows +had showed +merely that it is possible +to encode +Sentence +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration +in a well-defined manner as a $\Pi_1^*$ +sentence. +It does not answer the more subtle question about whether or not +its +{\it ``I am consistent''} axiom declaration +holds +true + under the Standard model. +%of the natural numbers. +As we have noted before, +most analogs of +%the above sentence +\eq{newencode2} +produce false statements +%fail to hold True +under the Standard Model +because a conventional G\"{o}del-like +diagonalization argument will imply +that +most deduction methods $D$ will produce +%their resulting +axiom systems +$\mbox{IS}_D(A)$ +that are + inconsistent. + +\medskip + +The reason for our +particular +interest in +\eq{newencode2}'s +formal encoding is that +Theorems \ref{ttt1} and \ref{ttt2} +indicate that $\mbox{IS}_D(A)$ +is +%indeed +consistent when $D$ denotes +either the semantic tableaux or \txl{1} +deduction methodologies. Thus +\eq{newencode2}'s +Fixed-Point construction should be seen as a +methodology that has +%limited-but-subtle +limited applications, +but which is also +quite helpful (when it is feasible). + +%quite significant. +\end{document} + diff --git a/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/wolinf b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/wolinf new file mode 100644 index 0000000..38afa22 --- /dev/null +++ b/nachlass/collected_dew_materials/REJECTED-2014-WOLLIC/wolinf @@ -0,0 +1,4931 @@ +%% suny feb 11 noon removed bib + +% home 2014 Feb 9 9.6 -3pm old title with key words and bibliog added + +%% NEED to do SPELL + +%% godel t0 goedel and spell + +%%% home jan17 8.31 am + +%%% suny jannary11 spell 6pm + +% home 2015 january 10 7 am -minor amendment while listening Sinatra + +% home 2015 january 4 1.1 pm + +% home 2015 january 3 2.3 pm abstract and new-bib; jan4 3,1am reformat + + +%% 2014 home march 29 8.5 pm +%% AFTER PAPER SUBMITTED CHANGED LAST paragraph + +%% 2014 home march 28, 4.1 am suny 10.1 am changed 7 -10 to 6 -10 + +%IMPORTANT REMINDER Long Paper should prove Theorem 3 for D= sem tab + +%\documentclass[12pt]{article} +%\documentclass[10pt]{article} +%\documentclass[11pt]{article} +\documentclass[11pt]{article} + + + + + + + + +\usepackage{amssymb} + + + +\addtolength{\oddsidemargin}{-0.9in} + +\setlength{\textheight}{9.0 in} + + +\setlength{\textwidth}{6.5 in} +\setlength{\textwidth}{6.6 in} +\setlength{\textwidth}{6.4 in} + + + +% \addtolength{\topmargin}{-.5in} +% \addtolength{\topmargin}{-.9in} + \addtolength{\topmargin}{-.6in} + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +\newtheorem{corollary}{Corollary} +\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} + +%%% changed to double numbers + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +\def\fffx{Fact \#} +\def\zhz{H } +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + + +\def\iii{IS$_D(\aaa)$} +\def\I2{IS$^{\#}_D(\beta)$} +\def\ik3{IS$^{\#}_D(\beta_{A,i})$} + +\def\js{IS$_D(A^*)$} +\def\ns{IS$^{\#}_D(\beta^*)$} + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\phx}[1]{Theorem \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + +%% +%% \title{ +%% %\Large +%% On the +%% %Broader +%% Epistemological +%% Significance of +%% Self-Justifying Axiom Systems +%% from a Semantic Tableaux Perspective} +%% + + + + +% old title is + + \title{ +%\Large +On the Broader +Epistemological +Significance of +Self-Justifying Axiom Systems} +% from the Perspective of Analytic Tableaux} + + + + + + + + + + + + + + + + + + + + + + + + + + +\def\aaa{A} +\def\ccc{Class} + + + + + + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + + + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard\thanks{\normalsize This research +was partially supported +by the NSF Grant CCR 0956495. +\newline +Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + + + + +\date{State University of New York at Albany} + +\maketitle + + \setcounter{page}{0} + \thispagestyle{empty} + + + +\begin{abstract} +\large +\baselineskip = 1.5 \normalbaselineskip +This article will be a continuation of our +research into self-justifying +systems. +It will introduce +several +new theorems +(one of which +will transform our previous infinite-sized +self-verifying +logics +into formalisms +or purely finite size). +It will explain how self-justification +is useful, even when the Incompleteness +Theorem +clearly +does sharply +limit its +scope. +\end{abstract} + + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +\bigskip +\bigskip +\bigskip + +{\large +{\bf Keywords and Phrases:} +G\"{o}del's Second Incompleteness Theorem, Hilbert's Second +Open Question, Semantic Tableaux Deduction, + Consistency.} + + +%% +%% \begin{quote} +%% %{\bf $~~~~$ Detailed Abstract (as requested by Call for Papers):} +%% {\bf $~~~~ $ Abstract:} +%% $~$ +%% This article will be a continuation of our research into self-justifying +%% systems. It will introduce several new theorems and then explore their +%% philosophical significance. Its two specific goals will be to: +%% \bed +%% \item[ A. ] +%% Explain how to transform our prior results about infinite-sized +%% self-verifying axiom systems into tighter results about axiom +%% systems of purely finite cardinality. +%% \item[ B. ] +%% Explain how self-justifying axiom systems are useful {\it even when +%% the Second Incompleteness Theorem specifies limits for their reach.} +%% In particular, this second part of our +%% research +%% %results +%% discourse +%% will explain how +%% self-justification is related to open questions and conjectures that +%% G\"{o}del and Hilbert raised in 1926 and 1931. +%% \ennd +%% \end{quote} + +%% +%% Our discussion will have a more philosophical and easier-to-comprehend tone +%% than the more mathematically styled presentation in our prior published +%% papers. +%% % +%% %Our discussion will have a more philosophical and easier-to-comprehend tone +%% %than the more mathematically styled in our prior published papers. +%% %% +%% %% The discussion in this article will have a more philosophical and +%% %% easier-to-comprehend tone than the mostly mathematical discourse in our +%% %% prior published papers. Its +%% %% +%% Its +%% concluding section will offer a new +%% interpretation of the Second Incompleteness Theorem, where G\"{o}del's +%% historic result is taken as being {\it robust and ubiquitous} from a purist +%% theoretical perspective, while +%% % still +%% permitting enough wiggle room to +%% explain how humans gain the {\it psychological motive} to cogitate in +%% applications-oriented engineering-style environments. + + + + +\normalsize + + + + +\baselineskip = 1.5\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\fgf {\baselineskip = 1.3 \normalbaselineskip } + + + +\bbint + + + + +\normalsize +%% \LARGE\baselineskip = 1.1\normalbaselineskip +\baselineskip = 1.2\normalbaselineskip + +%\vspace*{- 3.0 em} + +\newpage + + +\def\J1{IS$_D(~\cdot ~)$} + + + +\def\K1{IS$_D(~\cdot ~)$} +\def\J2{IS$^{\#}_D(~\cdot ~)$} + + +%%% ssssssssssssss +%% TEXT IS HERE + + \parskip 5 pt + +%%%%%\large + \baselineskip = 1.235 \normalbaselineskip + +\large + +\baselineskip = 1.6 \normalbaselineskip +\baselineskip = 2.0 \normalbaselineskip +\normalsize \baselineskip = 1.22 \normalbaselineskip + +\def\ssspace{\normalsize \baselineskip = 1.24 \normalbaselineskip } + +% \def\ssspace{\normalsize \baselineskip = 2.1 \normalbaselineskip } + +\ssspace + + \parskip 5 pt + +\section{Introduction} +\label{pppp1} + + +G\"{o}del's Incompleteness Theorem +has two parts. +Its +first half indicates no decision +procedure can identify +all of +arithmetic's + true statements. +Its + ``Second Incompleteness'' +result + specifies +sufficiently strong +logics +{\it cannot} verify their own consistency. +G\"{o}del +was careful to insert +a + caveat +into +his historic paper +\cite{Go31}, +indicating +a +{\it +diluted} +form +of Hilbert's Consistency Program +might +% have some success: +reach some +levels of +partial + success: +\begin{quote} +$*~$ +% (G\"{o}del \cite{Go31} 1931): +{\it ``It must be +expressly +noted +Proposition XI +(e.g. G\"{o}del's +``Second'' Incompleteness +Result) +represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and { there might +conceivably be finite proofs} which cannot +be stated in P or in ...''} +\end{quote} +Some +scholars +have interpreted +$\,*\,$ +as, possibly, +anticipating attempts +to confirm Peano Arithmetic's consistency, +via +either +Gentzen's formalism or + G\"{o}del's Dialetica interpretation. +On the other hand, +the Stanford's Encyclopedia's +entry about G\"{o}del +quotes him, +in its + Section 2.2.4, +stating +he was hesitant to +view the +Second Incompleteness Theorem + as +fully +ubiquitous, until +learning +of Turing's +work. +Moreover, +Yourgrau \cite{Yo5} +states +von Neumann +{\it ``argued +against G\"{o}del +himself''} +in the early 1930's, + about the definitive termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. +Also, it is known + \cite{Da97,Go5,Yo5} +that +G\"{o}del + initially +presumed the +second theorem +was false, before proving his stunning +result. +%hhhh + + + +\smallskip + + + +In any case +several + year after he wrote $*$'s +initial + statement, +G\"{o}del gave a +1933 + lecture \cite{Go33}, +where he +told his audience +that +Hilbert's +initial +1926 objectives, summarized +formally +by + $**$ below, +had + {\it ``unfortunately''} +no +{\it + ``hope of succeeding along''} +its originally intended plans. +\begin{quote} +$**~$ (Hilbert \cite{Hil26} 1926): +{\it ``Where +else +would +reliability and truth be found +if even mathematical thinking fails? The definitive nature +of the infinite has become necessary, not merely for the special +interests of individual sciences, but rather { for the +honor} of human understanding itself.''} +\end{quote} + +Our research, in both the current article +and +the +prior papers +\cite{ww93}-\cite{ww14} +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}, +was stimulated by the prospect that we find $**$ enticing, +even though the Second Incompleteness +Theorem +{\it unequivocally} + demonstrates that logics +{\it cannot} recognize +their own consistency +{\it in a robust sense.} +Accordingly, we have studied +{\it both} generalizations and boundary-case exceptions +for the Second Incompleteness Theorem +in +\cite{ww93}-\cite{ww14}. +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +The current article will seek to +{\it both} strengthen these prior +results, +in the context of axiom systems +with +{\it + strictly finite cardinalities}, +and to also provide a more intuitive explanation of the +meaning +behind +\cite{ww93}-\cite{ww14}'s +% \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}'s +results. + +The thesis of this article will be delicate +because there can be no doubt that + the Second Incompleteness +Theorem is +sharply robust, +when viewed +from a + conventional +purist +mathematical + perspective. +On the other hand, we will argue that there are certain facets +of a ``Self-Justifying Logics'', that are tempting +under a hard-nosed +engineering perspective, +contemplating + sharply + {\it curtailed forms} of Hilbert's goals. +These results will be + fragile +{\it but +not +fully +immaterial.} + + +%bbbb +In other words, this +article will offer a somewhat complicated +2-part interpretation of the Second Incompleteness Theorem +where: +\bee +\item +The Second Incompleteness Theorem is seen as +being 100 \% +robust from a mathematical perspective +because of the +% ubiquitous and +widely +encompassing nature of the 1939 +Hilbert-Bernays analysis \cite{HB39} (centering around +their three +well-known +``Derivability Conditions'' \cite{Mend} ). +\item +On the other hand, our discourse +will partially +appreciate Hilbert's reluctance +to fully embrace the Second Incompleteness Theorem, +despite his +joint +work with Bernays \cite{HB39} +generalizing the Second Incompleteness Effect. +(This is +because it is awkward to explain how human beings can +% undeniable +acquire the mental energy +for motivating themselves to cogitate, +without possessing some type of instinctive faith +in their own self-consistency.) +\ene +%It is in the context where +Thus, +the current article + will seek to +separate a {\it ``mathematical''} from +what perhaps should be +{\it ``engineering-style''} + appreciation +of one's +internal consistency. We will seek to define and explore the +latter +%nature of this +%engineering notion in the current article +(with the hope that it will help formalize how future +21st century computers can benefit from its engineering-style +%% notion +perspective, +while still respecting +%%% at the same time +the strict prohibitions formalized by +G\"{o}del's millennial result.) + + +As the reader examines this paper, it should be kept in mind +that +it does +focus on +% the properties of +semantic tableaux +deduction (similar to the earlier +% more abbreviated +discussion that had +appeared in \cite{ww14}'s more abbreviated +conference-style summary of our results). +A second paper, currently under preparation, +will examine Hilbert-style deductive systems (whose +self-justification properties +are partially analogous and partly +quite +different from +% our +tableaux-style systems). +The combination of these two results will formally +define both the potential of self-justifying logics +and the limitations which the Second Incompleteness +Theorem imposes upon them. + + +%% +%% In other words, the theme of this article will be that conventional +%% interpretations of the Second Incompleteness Theorem are +%% certainly 100 \% +%% correct from a mathematical perspective. +%% as foreseen very rigorously +%% as early as 1939 +%% by Hilbert-Bernays \cite{HB39}. +%% This is because +%% no formalism can +%% recognize its own consistency in a very robust +%% strictly +%% %purely +%% mathematical +%% respect. +%% On the other hand, it also +%% seems +%% evident +%% %% appears apparent +%% % undeniable +%% that +%% human beings +%% will +%% %would +%% find it awkward +%% %be unable +%% to acquire the mental energy +%% for motivating themselves to cogitate, +%% without possessing some type of instinctive faith +%% in their own self-consistency. +%% This perhaps should be +%% called an +%% % {\it quasi- +%% {\it engineering=style appreciation} of one's +%% internal consistency. We seek to define and explore the +%% nature of this +%% engineering notion in the current article +%% (with the hope that it will help formalize how future +%% 21st century computers can benefit from this engineering-style +%% notion while, of course, respecting +%% %%% at the same time +%% the strict prohibitions formalized by +%% G\"{o}del's millennial result.) + + + +\section{Background Setting} +\label{pppp2} + + +Let + $( \alpha , d )$ +denote any axiom system +and deduction method satisfying +the +simple {\bf ``Split Rule''} +below$\,$\footnote{Our + ``Split Rule'' +is the trivial requirement + that all the axiom sentences in +$~\alpha~$ are +technically +{\it proper axioms}, and + that +deduction method $~d~$ is +required +to include +{\bf BOTH} a finite number of rules of inference +and +whatever ``logical axioms'' are needed +{\it (if any ? )} +by $\,d$'s methodology. +(This +trivial +Split-Rule +notation convention will +help us to provide a +%%hhhh +precisely formalized statement of our results. + .)}. +This pair +will +be called {\bf ``Self Justifying''} when: +\begin{description} + \item[ i ] one of $ \, \alpha \,$'s theorems +will +state that the deduction method $ \, d, \, $ applied to the +system $ \, \alpha, \, $ will +produce a consistent set of theorems, and +\item[ ii ] + the axiom system $ \, \alpha \, $ is in fact consistent. +\end{description} +For any $\,(\alpha,d) \,$, +it is +easy +to construct a +second + $ \, \alpha^d \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +requirement. +For instance, $ \, \alpha^d \, $ could +consist of all of $~\alpha \,$'s axioms plus +an added {\bf $\,$``SelfRef$(\alpha,d)$''$\,$} sentence, +defined as stating: +\begin{quote} +$\bullet~$ +There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of the +system $ \alpha $ +with {\it this} +sentence ``SelfRef$(\alpha,d)$'' (looking at itself). +\end{quote} +Kleene +\cite{Kl38} +noted +how +to +encode +rough + analogs of + ``SelfRef$(\alpha,d)$''. +Each of +Kleene, +Rogers and Jeroslow + \cite{Kl38,Ro67,Je71} + noted +$\alpha ^d$ +may, +however, be inconsistent +(despite SelfRef$(\alpha,d)$'s assertion), +thus causing +it +to violate Part-ii's +requirement. + + +%% hhhh +This problem arises in +many +contexts besides + G\"{o}del's +paradigm, +where $\alpha$ was an extension of Peano Arithmetic +(see +\cite{Ad2,AZ1,BS76,Bu86,BI95,Fe60,Fr79a,Go31,Ha7,Ha11,HP91,HB39,Ko6,KT74,Lo55,Pa71,Pa72,Pu85,Pu96,Ro67,Sa12,So94,Sv7,Vi5,WP87,ww2,wwlogos,ww7}). +Such results formalize +paradigms where +self-justification is infeasible, +due to diagonalization issues. +(It should, +perhaps, + be added that among this +lengthy list of articles, +it was especially +\cite{Ad2,Bu86,Go31,Lo55,Pu85,So94,WP87}'s +incompleteness results that +influenced our +work in +\cite{ww93}-\cite{ww14}.) +% in \cite{ww93,sp0,ww1,ww2,tab2,wwlogos,ww5,wwapal,ww6,ww7,ww9}.) +In any case, the main point is that +most +logicians +have +hesitated +to + employ +an +analog of a + SelfRef$(\alpha,d)$ + axiom +because + $ \alpha^d = \alpha+$SelfRef$(\alpha,d) $ +is +typically +inconsistent. + + + + + + + + + +Our research +in \cite{ww93,ww1,ww5,ww6,wwapal} +focused on +paradigms +where +self-justification is feasible. +It +involved weakening +the properties +a +logic +can prove +about +addition and/or +multiplication +(to avoid +potential +difficulties). +To be more precise, let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote +3-way predicates +specifying +$x+y=z$ and +$x*y=z$. +Then a +logic +will be said to +{\bf recognize} +successor, + addition and multiplication +as {\bf Total Functions} iff it +includes +sentences +1-3 as axioms. + +\vspace*{- 0.4 em} +{\small +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\vspace*{- 1.7 em} +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } + +\vspace*{- 1.2 em} + +A +logic +$\alpha$ +will be called +{\bf Type-M} iff it contains +\ref{totdefxs}-\ref{totdefxm} +as axioms, +{\bf $~$Type-A} iff it contains only +\eq{totdefxs} and \eq{totdefxa} as axioms, +{\bf $~$Type-S} iff it contains +only \eq{totdefxs} as an + axiom, and +{\bf $\,$Type-NS$\,$} iff it contains +none of these axioms. +The relationship of these constructs to +self-justification +is explained by +items (a) and (b): +\bed +\item[ a. ] +The existence of +Type-A systems that can recognize +their own +consistency under semantic tableaux deduction, +while proving +analogs of +all +Peano Arithmetic's + $\Pi_1$ theorems (in a slightly different language), +were +%%hhhh +demonstrated in +\cite{tab2,ww5}. +Also, \cite{ww1,wwapal} noted that +some +specialized +forms +of +Type-NS systems +can +likewise +recognize their +own Hilbert consistency. + + + +\item[ b. ] +The above +evasions of the Second Incompleteness +Theorem are known to be near-maximal in a mathematical sense. +This is because +the +combined work of Pudl\'{a}k, Solovay, Nelson and Wilkie-Paris +\cite{Ne86,Pu85,So94,WP87} implied no +natural +Type-S system can recognize its Hilbert consistency, +and Willard +subsequently + \cite{ww2,ww7,ww9} +hybridized their formalisms with some techniques of +Adamowicz-Zbierski +\cite{Ad2,AZ1} +to establish that most +Type-M systems cannot recognize their +own semantic +tableaux consistency. +\ennd + + + +Other +fascinating +efforts to +evade the Second Incompleteness Theorem +have used +the Kreisel-Takeuti ``CFA'' +system \cite{KT74} +or the +the {\it interpretational framework} of +Friedman, +Nelson, Pudl\'{a}k and Visser +\cite{Fr79b,Ne86,Pu85,Vi5}. +These systems are unrelated to our approach +because they +do not use +Kleene-like {\it ``I am consistent''} axiom-sentences. +Instead, CFA uses the +special +properties of ``second order'' generalizations of Gentzen's +{\it cut-free} +Sequent Calculus, +and +the +interpretational approach +formalizes how some systems +recognize their + Herbrand consistency +on localized sets of integers, +which +unbeknownst to +themselves, +includes all +integers. +(These alternate results are interesting but +unrelated to our approach.) + + + + + + + +\section{Defining Notation and Earlier Results} +\label{pppp3} + +\label{sect3} + + + +A function $F $ +will be called {\bf Non-Growth} +iff +$ F(a_1...a_j) +\leq Maximum(a_1...a_j)$ +holds. +Six examples of +non-growth functions are +\bee +\small +\parskip 0pt +%hhhh +\item +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +\item +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +\item +$Maximum(x,y),$ +\item +$ Logarithm(x)~=~\lfloor ~$Log$_2(x)~ \rfloor~$ +\item +$\,Root(x,y) \, = \, \lfloor \, x^{1/y} \, \rfloor~$. and +\item$Count(x,j)$ designating the number of ``1'' bits +among $ x$'s rightmost $ j $ bits. +\ene +The term +{\bf U-Grounding Function} +referred in \cite{ww5} to +a set of +primitives, +which included the +preceding +functions plus the {\it growth operations} of addition and +{\it Double$(x)=x+x$}. +Our language $L^*$ was +built +out of these +symbols, +plus the primitives of +``0'', ``1'', + ``$ \, = \, $'' +and ``$ \, \leq \, $''. + + + + +In a context where $~\, t \, ~$ is any term in \cite{ww5}'s +language $L^*$, +$\,$the quantifiers in +%% the wffs +$~ \forall ~ v \leq t~~ \Psi (v)~$ and $~ \exists ~ v \leq t~~ \Psi (v)$ +were called {\it bounded +quantifiers}. +Any formula in + $L^*$, +all of whose +quantifiers are bounded, was called +a $\Delta_0^*$ formula. +The $~\Pi_n^{* }~$ and $~\Sigma_n^{* }~$ formulae +were +then defined by the +usual +rules that: +\bee +\item +Every +$\Delta_0^*$ formula is considered to +be +``$~\Pi_0^{* }~$'' and +also + ``$~\Sigma_0^{* }~$''. +\item +A +wff +is called + $ \,\Pi_n^{* } \,$ +when it is encoded as +$\forall v_1 ~ ...~ \forall v_k ~ \Phi$ with +$\Phi$ being $\Sigma_{n-1}^{* }$ +\item +Also, +a wff +is called + $\Sigma_n^*$ +when it is encoded as +$\exists v_1 ..\exists v_k ~ \Phi,$ where +$\Phi$ is $\Pi_{n-1}^{* }$. +\ene + +%%bbb +Our articles \cite{ww93,tab2,ww5} used the symbol $~D~$ to denote +a deduction method. +They focused mostly around the +semantic tableaux deductive methodology, +whose formal definition can be found in the textbooks +by Fitting and Smullyan +\cite{Fi90,Smul} and whose +definition is also reviewed +by Appendix A of the current article. + +%%bbb +Our articles \cite{wwlogos,ww5} +also considered an improved faster deductive technology, + called +{\bf Tab-k + deduction}, that +consists of a +speeded-up version of a +tableaux, +which +permits a +{\it limited analog} of +Gentzen-style deductive +cuts +for $\Pi_k^*$ and $\Sigma_k^*$ formulae. +Thus, if + $~H~$ +denotes a sequence of ordered pairs +$~(t_1,p_1),~(t_2,p_2),~...~(t_n,p_n),~$ +where $~p_i~$ is a Semantic Tableaux proof of the theorem $~t_i,~$ +then $H$ +has been + called a +{\bf ``Tab-k +Proof''} +of a theorem $~T~$ +from $\alpha$'s axioms + iff $~T=t_n~$ +and also: +\begin{enumerate} +\item +Each of the ``intermediately derived theorems'' +$~t_1,t_2, \, ... \, , t_{n-1}~$ +have a complexity no greater than that of +either a $\Pi_k^*$ or $\Sigma_k^*$ sentence. +\item +Each +proper axiom in $ p_i$'s +proof +comes +either +from $\alpha$ or is + one of $ t_1,t_2, \, ... \, , t_{i-1} $. +\end{enumerate} +Thus, a +Tab-k proof is essentially a generalization of a classic +semantic tableaux proof that essentially owns the equivalent of +an +extra specialized modus ponens rule for + $\Pi_k^*$ and $\Sigma_k^*$ sentences. + +Let +us say +an axiom system $\alpha$ +has a {\bf Level-J Understanding} +of its own +consistency +under a deduction method $D$ +iff $\alpha$ can prove that there exists no proofs +using +its axioms and $D$'s deduction +of both a +$\Pi_J^*$ theorem and its negation. +In this notation, items A and B summarize +\cite{sp0,ww2,wwlogos,ww5,ww7}'s +main +results: +\bed +\item[ A. ] + For +any +axiom system $A$ using $L^*\,$'s + U-Grounding language, +\cite{ww5} +showed its +IS$_D(A)$ formalism +could prove +all $A$'s $\Pi_1^*$ theorems and simultaneously +verify its +Level-1 +consistency under +\txl{1} deduction. + +\smallskip + +\item[ B. ] +Two negative results, tightly complementing +item A's +positive result, +were exhibited +in +\cite{sp0,ww2,wwlogos,ww7}. The first +was that \cite{sp0,ww2,ww7} showed +most +systems +are +unable to verify their +Level-0 consistency under +semantic tableaux +deduction, + when they included +statement +\eq{totdefxm}'s ``Type-M'' +axiom that multiplication +is a total function. Moreover, \cite{wwlogos} +offered an alternate +form +of this + incompleteness +result, +showing statement +\eq{totdefxa}'s +{\it +far weaker} +Type-A +systems +cannot +verify +their Level-0 consistency under +\txl{2} deduction. +\ennd + + + + +The contrast between these +positive and negative results +has + led to our conjecture that +automated +theorem provers +are likely + to +eventually +achieve +a fragmentary part of the ambitions +that were +suggested by Hilbert +in +$**\,$. +This is because +the question of whether a +formalism can support an +{\it idealized Utopian} +conception of +its own consistency is {\it +different} from +exploring the degrees to which +theorem-provers +can possess +a {\it fragmentary +knowledge} of +their own +consistency. +The +Incompleteness Theorem +has demonstrated +an Utopian idealized form of self-justification +is unobtainable, +but our research has found some +diluted +cousins +of this construct are +feasible +%%% hhhh +and warrant examination. + + +%%%bbbbb +In summary, +%as a reader examines the remainder of this article, +it should be kept in mind, +during the remainder of this article, +that the Hilbert-Bernays Derivability Conditions +\cite{HP91,HB39,Mend} +impose severe limits upon any evasion of +the Second Incompleteness Theorem. +% that are inexorable. +On the other hand, +it appears that a + human's + faith in his own consistency +is an essential +prequisite to gain the needed + psychological +motivation for +% cogitating. +stimulating cogitation? +% motivate to cogitate. +%cogitation, is also a non-trivial agent. +(This is why we suspect Hilbert was never willing +to concede that all facets of his consistency program +%would be +were +hopeless.) +A broad theme of this paper will, +% thus +thus, +be that it +is helpful to distinguish between the goals of +a +theoretical-oriented study of arithmetic from +that of +a more engineering-styled approach, +since the +Second Incompleteness Theorem is a perfect result +from the first perspective while it permits +for +% some +well-defined +limited-scale part-way exceptions from +the second vantage point. + +%% Above sentence replaces below + + +%% Our interest in +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% was +%% % stimulated by such +%% raised by these +%% considerations. + + +%% It is for this reason that +%% the contrast between Paradigms A and B, as well as +%% the distinction between a +%% ``Fragmentary'' and ``Idealized-Utopian'' notion of consistency, +%% from the preceding two paragraphs, +%% warrant investigation. +%% +%are so important. + + +%% Their +%% two subtle contrasts will be our +%% main +%% focus +%% % of our attention +%% %in the remainder of this article. +%% in the rest of this article. +%% + + +\section{The IS$_D(A)$ Axiom System} +\label{pppp4} + + +\label{sect4} + +In a context where $~A~$ denotes any axiom +system using + $L^*\,$'s +U-Grounding language, IS$_D(A)$ +was defined +in \cite{ww5} +to be an axiomatic +formalism capable of recognizing all of +$A$'s $\Pi_1^*$ theorems and +corroborating +its own Level-1 consistency under $D$'s deductive method. +It +consisted of the +following four +groups of axioms: +\begin{description} +\item[Group-Zero:] +Two of the Group-zero axioms +did +% will +define +the +constant-symbols, +$\bar{c}_0$ +and $\bar{c}_1$, +designating the integers of 0 and 1. +The +Group-zero axioms +will +also define the +growth functions of addition and +$~Double(x) \, = \, x+x.~$ +The +net effect of these +axioms will be to set up a machinery to +define +any +integer +$~n \geq 2~$ +using fewer than +$3 \cdot \lceil \, $Log$~n~ \rceil \,$ +logic symbols. + + + + + +\item[Group-1:] +This axiom group +did +% will + consist of a +finite set of $\Pi_1^{*} $ sentences, denoted as $~F~$, which +can prove any $\Delta_0^*$ sentence that +holds true under the standard model of the natural numbers. +(Any finite set of +$\Pi_1^{*} $ sentences $~F~$ +with this property +may be used to define Group-1, +as \cite{ww5} noted.) + + + +\item[Group-2:] +Let $\ulxyz \Phi \urxyz$ denote +$\Phi$'s G\"{o}del Number, and +HilbPrf$_A(\ulxyz \Phi \urxyz,p)$ denote a +$\Delta_0^{*} $ formula indicating +$~p~$ is a +Hilbert-styled proof of +theorem $~\Phi~$ from +axiom system $A$. +For each $\Pi_1^{*} $ sentence $\Phi$, the +Group-2 schema +of \cite{ww5} +did +% will + contain an axiom of +form \eq{group2}. +(Thus IS$_D(A)$ can trivially prove + all $A$'s +$\Pi_1^{*} $ theorems.) +\begin{equation} +\forall ~p~~~\{~ \mbox{HilbPrf$_A(\ulxyz \Phi \urxyz,p)$} + ~~ +\Rightarrow ~~ \Phi~~\} +\label{group2} +\end{equation} +\item[Group-3:] +This final part of the IS$_D(\aaa)$ +essentially represented +% will be +a +self-referencing +$\Pi_1^*$ +axiom, +indicating +IS$_D(\aaa)$ meets +\textsection 3's criteria of being +``Level-1 consistent'' +under deductive method $D$. +It +amounts, +%is, +thus, +to the following declaration: +\begin{quote} +\# $~${\it No two +proofs exist +for +a $\Pi_1^{*} $ sentence +and its negation, when +$D$'s deductive method is applied to an axiom system, +consisting of +the {\it union} +of +Groups 0, 1 and 2 with {\bf $\,$this sentence$\,$} +(looking at itself).} +\end{quote} + +One encoding of \#, +$\,$as a self-referencing +$\Pi_1^{*} $ +axiom, +appears + in +\cite{ww5}. +%% hhhh0000000000 +Thus, +the +below +sentence +\eq{group3} +represents +\cite{ww5}'s +$\Pi_1^{*}\, $ styled +encoding for$~$ + \# +in a context where: +\bed +\item[ i. ] +$~~\mbox{Prf} \, _{\mbox{IS}_D(A)}(a,b) \, $ is +a + $\Delta_0^{*} $ formula +indicating +that +$ \, b \, $ is a proof + of a theorem $\, a\,$ +under + $\mbox{IS}_D(A)$'s axiom system +and $D$'s deduction method, +$\,~$and +\item[ ii. ] +$~~$Pair$(x,y)$ is a $\Delta_0^{*} $ formula +indicating +that $ \, x \, $ is a + $\Pi_1^{*} $ sentence +and +% that + $ \, y \, $ +represents +$ \, x \,$'s negation. +\end{description} +%% A summary of the formal techniques that +%% \cite{ww5} used to encode +%% sentence +%% \eq{group3} is provided in Appendix B. +\end{description} +\begin{equation} +\forall ~x~\forall ~y~\forall ~p~\forall ~q~~~~ \neg ~~ +[~~ \mbox{Pair}(x,y)~ \wedge ~ +~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(x,p)~ +\wedge ~ ~\mbox{Prf}~_{\mbox{IS}_D(\aaa)}(y,q)~ ] +\label{group3} +\end{equation} + +\begin{remark} \label{remc} +\rm +A +fully formal +summary of the techniques that +\cite{ww5} used to encode +%the +sentence +\eq{group3} is provided by +the combination of Appendices B and C. +The former appendix summarizes our +methods for generating the G\"{o}del numbers +of semantic tableaux and \txl{k} proofs +in an optimally compressed manner. +The latter appendix explores how +sentence +\eq{group3}'s self-referencing statement is precisely encoded. +\end{remark} + +{\bf Notation.} An operation $~I(~\bullet~)~$ that maps +an initial axiom system $\,\aaa \,$ onto an alternate +system $\,I(\aaa)\, $ will be called {\bf Consistency Preserving} +iff $\,I(\aaa)\, $ is consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers. In this +context, +\cite{ww5} demonstrated: + + +\begin{theorem} +\label{ttt1} +\label{thold} +Suppose +the symbol $D$ denotes either semantic +tableaux deduction or its \txl{1} generalization. +Then the IS$_D(~\bullet~)~$ mapping operation is consistency preserving +(e.g. +IS$_D(\aaa) $ +will be consistent whenever all of $\aaa$'s axioms hold +true under the standard model of the natural numbers). +\end{theorem} + +We emphasize +the most difficult part of \cite{ww5}'s +result was +neither the definition of its +IS$_D(\aaa) $'s axiom system nor the +$\Pi_1^*$ fixed-point + encoding of \eq{group3}'s Group-3 axiom. +Instead, +the key challenge + was the +confirming +of \thx{thold}'s +``Consistency Preservation'' +property. + + +The +confirming of +this +property +is +subtle +because its invariant breaks down when +$~D~$ is a deduction method only slightly stronger than +either semantic tableaux or \txl{1} deduction. +Thus, Pudl\'{a}k's and Solovay's +work \cite{Pu85,So94} +implies \thx{thold}'s analog fails when $D$ represents +Hilbert deduction, and \cite{wwlogos} showed its generalization + fails +even when $D$ represents \txl{2} deduction. + + + + + + + + +\section{A Finitized Generalization of \thx{thold}'s Methodology} +\label{pppp5} + + +\label{sect5} + +%%%mmmm +One +difficulty with IS$_D(\aaa)$ +was +is +that it +employed +an infinite number of different +incarnations of +sentence \eq{group2} +in its Group-2 scheme (since it contained one incarnation +of this sentence for each $\Pi_1^*$ sentence $\Phi$ in +$L^*\,$'s language). Such a Group-2 schema is awkward because +it simulates $A$'s +$\Pi_1^*$ +knowledge almost via a brute-force +enumeration. + + +Our Definition \ref{dd-is2} and Theorems +\ref{ttt2} and \ref{ttt3} will show how +to +mostly +overcome this problem by +compressing the infinite number +of +instances of sentence \eq{group2} in +IS$_D(\aaa)$'s Group-2 schema into +a purely finite structure. + +\smallskip + +\begin{definition} +\label{dd-is2} +\rm +Let $~\beta~$ denote any +finite set of +axioms that have + $\Pi_1^*$ encodings. +Then +\I2 +will denote an axiom system, +similar to IS$_D(\aaa)$, except +its Group-2 +scheme will employ $~\beta\,$'s set of axioms, +instead of using an infinite number of applications +of +statement \eq{group2}'s scheme. +(Thus, +the +{\it ``I am consistent''} statement +in \I2's Group-3 +axiom will be the same as before, except that +the {\it ``I am''} +fragment of its +self-referencing +statement +will reflect +these + changes in Group-2 in the obvious manner.) +\end{definition} + + + +\begin{theorem} +\label{ttt2} +Let + $D$ again denote either +semantic +tableaux +or \txl{1} deduction, +and $\beta$ again denote a set of +$\Pi_1^*$ axioms. +Then +\I2 +will be consistent whenever all +$\beta$'s axioms hold +true under the standard model. +(In other words, + \I2 +will satisfy an analog of \thx{ttt1}'s +consistency preservation property for IS$_D(\aaa) $.) +\end{theorem} + +%%bbbb +\thx{ttt2}'s +proof +is almost identical to +\cite{ww5}'s proof of \thx{ttt1}. +Its proof is too lengthy to repeat here. +Instead \textsection \ref{newppp9} +will +briefly summarize its +%% +%% provide +%% a +%% brief +%% %detailed +%% % an intuitive +%% summary +%% of the +%% formal +%% % germane +%% +proof. +This +abbreviated discussion +%% discourse +should be sufficient to explain +the gist behind the +proof's core +%needed +formalism, +%proofs, +without delving into +\cite{ww5}'s +full +%%%%% too many +%full +% formal +details. + +%%bbbb +Our next definition will enable us to formalize +the main application of +\thx{ttt2} that will be considered +here. +%during the present article. +It will essentially explain how +{\bf finite-sized} + self-justifying + logics + can provide an + {\bf infinite amount } + of + ``kernelized'' + $\Pi_1^*$ +styled +information. + + + +%%% It will. +%%% not be +%%% repeated in this extended abstract. +%%% Instead, +%%% this section +%%% will apply +%%% \thx{ttt2} +%%% to +%%% show how +%%% {\bf finite-sized} +%%% self-justifying +%%% logics +%%% can provide an +%%% {\bf infinite amount } +%%% of +%%% ``kernelized'' +%%% $\Pi_1^*$ information. +%%% + +\begin{definition} +\label{dkern} +\rm +Let +Test$_i(t,x)$ +denote any $\Delta_0^*$ formula, +and $~\ulcorner \Psi \urcorner ~$ denote +$\, \Psi\,$'s G\"{o}del number. Then +Test$_i(t,x)$ will be called a {\bf Kernelized Formula} +iff Peano Arithmetic can prove every $\Pi_1^*$ sentence +$~\Psi~$ satisfies \eq{testker}'s +identity: +\beq +\label{testker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +There are +infinitely +many + $\Delta_0^*$ predicates +Test$_1(t,x)$, Test$_2(t,x)$, Test$_3(t,x)$ ... +satisfying this kernelized condition +(one of which is illustrated by Example \ref{eex1}). +An enumerated list of all +the available kernels +is +called a {\bf Kernel-List}. +\end{definition} + +\begin{example} \label{eex1} \rm +The set of +true $\Sigma_1^*$ sentences is +r.e. +This +implies +there +exists a $\Delta_0^*$ formula, +called say Probe$(g,x)$, +such +that $~g~$ +is +the G\"{o}del number of +a $\Sigma_1^*$ statement that holds true in the Standard +Model +if and only if +%iff +\eq{e-probe} is true: +\beq +\label{e-probe} +\exists ~x~~~ \mbox{Probe}(g,x)~\wedge~ x \geq g +\enq +Now, let Pair$(t,g)$ denote a $\Delta_0^*$ formula +that specifies $~t~$ is the G\"{o}del number of +a $\Pi_1^*$ statement and + $~g~$ is +the $\Sigma_1^*$ formula which is its negation. +Then our notation implies +that + $~t~$ +is +a true + $\Pi_1^*$ statement +if and only if \eq{e-2probe} holds true: +\beq +\label{e-2probe} +\forall ~x~~~ +\neg~[~\exists ~g ~\leq~x~~~~~ \mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)~~] +\enq +Thus if +Test$_0(t,x)$ +denotes the $\Delta_0^*$ formula of +$~ \neg~[~\exists ~g \, \leq \, x~~ +\mbox{Pair}(t,g)~\wedge~\mbox{Probe}(g,x)]$, +it +is one example of what +Definition \ref{dkern} +would +call a +``Kernelized Formula''. +\end{example} + +\begin{definition} +\label{def3} +\rm +Let us recall +Definition \ref{dkern} +defined +{\bf Kernel-List} to be an enumeration of +all the +kernelized formulae +Test$_1(t,x)$, + Test$_2(t,x)$, Test$_3(t,x)...~$. +Assuming +Test$_i(t,x)$ is the $i-$th element in this +list +and +$\Psi$ is an arbitrary $\Pi_1^*$ sentence, +the +{\bf i-th Kernel Image} +of $\, \Psi \,$ + will be +defined as +the +following $\Pi_1^*$ +sentence: +\beq +\label{imagker} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +\end{definition} + +\begin{example} \label{eex2} \rm +The Definitions +\ref{dkern} +and \ref{def3} suggest that there is a + subtle relationship +between a sentence $~\Psi~$ and its $i-$th kernel image. +This is because +Definition \ref{dkern} +indicates that Peano Arithmetic can prove the invariant +\eq{testker}, indicating that + $~\Psi~$ +is equivalent to + its $i-$th kernel image. +However, a weak axiom system +can be plausibly uncertain about +whether this +equivalence +does formally hold. +This invariant is duplicated below: +\beq +\label{againtestker} +\Psi ~~~ \Longleftrightarrow~~~ \forall ~x~~ +\mbox{Test}_i (~\ulxyz~\Psi~\urxyz~,~x~) +\enq + +% equivalence holds. + +%mm% +Thus if a weak axiom system proves statement +\eq{imagker} (rather than $~\Psi~$), +it +%% may +will + not be able to equate these +two +results +(unless it is able to verify +\eq{againtestker}'s identity). +This problem will apply to \thx{ttt3}'s +formalism. +However, \thx{ttt3} will +% be +still +remain + of much interest +because \textsection \ref{pppp6} will +illustrate a +methodology that +can overcome +many of \thx{ttt3}'s limitations. +\end{example} + + + + + + + +\begin{theorem} +\label{ttt3} +Let $~A~$ denote any +system, +whose + axioms hold +true +in arithmetic's standard model, +and $~i~$ denote the index +of any of +Definition \ref{dkern}'s +kernelized formulae + Test$_i(t,x)$. +Then it is possible to construct a +finite-sized +collection of $\Pi_1^*$ sentences, called say + $\beta_{A,i}$, +where +\ik3 +satisfies the following invariant: +\begin{quote} +If $~\Psi~$ is one of the +$\Pi_1^*$ theorems of + $~A~$ +then \ik3 can prove +\eq{imagker}'s +statement + (e.g. it will prove the +``the $\, i-$th kernelized image'' +of +$~\Psi\,$). +\end{quote} +\end{theorem} + +\newpage + +\noindent +{\bf Proof Sketch:} +Our justification of +\thx{ttt3} will +use the following notation: +\bee +\item +Check$(t)$ will denote a $\Delta_0^*$ formula +that +produces a Boolean value of ``True'' when +$t$ represents the G\"{o}del +number of a $\Pi_1^*$ sentence. +\item + $~\mbox{HilbPrf}_A \,( t , q )~$ +will denote + a $\Delta_0^*$ formula that indicates +$~q~$ is a Hilbert-style proof of the theorem +$~t~$ from axiom system $~A~$. +\item +For any kernelized +Test$_i(t,x)$ +formula, GlobSim$_i$ +will +denote \eq{globsim}'s $\Pi_1^*$ sentence. +(It will be called $A$'s $i-$th +{\bf ``Global Simulation Sentence''}.) +\ene +\beq +\label{globsim} +\forall ~t~~ +\forall ~q~~ +\forall ~x~~\{~~ +[~~\mbox{HilbPrf}_A \,( t , q )~~ \wedge ~~ +\mbox{Check}(t)~~]~~~ +\Longrightarrow ~~~ +\mbox{Test}_i(t,x)~~~ \} +\enq + +%%mm +In this notation, +%%%the requirements of +\thx{ttt3} +shall +%will +be satisfied by any +version of the axiom system \I2, whose Group-2 schema $~\beta~$ +is a finite sized +consistent set of $\Pi_1^*$ sentences +that has +\eq{globsim} +as an axiom. +(This includes +the minimal sized such system, +% which we will +denoted as $~\beta_{A,i}~$, +that has only \eq{globsim} as an axiom.) +This is because +%Thus, +if +$\Psi$ is any +$\Pi_1^*$ theorem of $A$ whose proof +is denoted as $~\bar{p}~$, then both the +$\Delta_0^*$ predicates of +$\mbox{HilbPrf}_A \,( \ulxyz \Psi \urxyz , \bar{p} )$ and +$\mbox{Check}( \ulxyz \Psi \urxyz )$ +will hold true. +%are true. +Moreover, +IS$^{\#}_D$'s +%%%%%%%%%%%%%% \I2's +Group-1 axiom subgroup was defined so that +it can automatically prove all + $\Delta_0^*$ sentences that are true. +Hence, +%Thus, + \ik3 will + prove these two statements and +then automatically +%hence +corroborate (via axiom +\eq{globsim}) the further statement +of: +\beq +\label{interm} +\forall ~x~~ +\mbox{Test}_{\, i \,}(~ \ulxyz \Psi \urxyz ~,~x~ ) +\enq +%Hence +Thus +for each of the infinite number of $\Pi_1^*$ +theorems that $~A~$ proves, the above defined +formalism will prove a matching statement +that corresponds to +its +%% the + $\, i-$th kernelized image. $~~\Box$ + + +%% of +%% each +%% such proven theorem. +%% $~~\Box$ + +\section{ L-Fold Generalizations of \thx{ttt3} } +\label{pppp6} + + + + +\thx{ttt3} +is of +interest +because every axiom system $\,A\,$ +will have +its formalism +\ik3 +prove the + $\, i-$th kernelized image of every + $\Pi_1^*$ theorem that $A$ proves. +This fact is helpful +because +\eq{testker}'s invariance +holds for all $\Pi_1^*$ sentences. +Moreover, our +``U-Grounded'' +$\Pi_1^*$ sentences +capture all +Conventional Arithmetic's +{\it crucial} +$\Pi_1$ +information +because they can +view +multiplication as a 3-way + $\Delta_0^*$ +predicate +Mult$(x,y,z)$ +via +\eq{neweq1}'s +encoding of this predicate. +\begin{equation} +\label{neweq1} +[~(x=0 \vee y=0 ) \Rightarrow z=0~ ]~ ~\wedge ~~ +[~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x} \, 100~$? +%hhhh +Is the use of +such a sequence +%use, +for corroborating the Second Incompleteness +Effect +% , thus essentially, +%thereby +resting +% , essentially, +%, at least partially, +upon an +% an inherently +almost +artificial construct +(with + an +inherently +dizzying growth rate) ? +\end{quote} + + + +We will not attempt to derive a Yes-or-No answer to Question $***$ +because +we think that such a direct +response +%%% answer +is too simplistic. +Our point is that +both a positive and negative reply to + $***$ +are useful in different respects. +%% +%% it +%% is one of those epistemological questions that can be +%% debated +%% endlessly. +%% Our point is that $***$ +%% probably does not require a definitive +%% positive or negative answer because both perspectives +%% are useful. +%% +%% Thus, +%% the theoretical existence of a sequence +This because +the theoretical existence of a sequence +integers +of $ y_0, y_1, y_2, ... $, whose binary +encodings are doubling in length, is tempting +from the perspective of +an Utopian view of mathematics, while +awkward from an engineering styled +perspective. +We therefore ask: {\it ``Why not be tolerant +of both perspectives? ''} + +One virtue of +this tolerance is +it +ushers in +a greater understanding +for the statements $*$ and $**$ that G\"{o}del and +Hilbert made during +1926 and 1931. +This +is +because the +Incompleteness Theorem +demonstrates +no +formalism can display +an understanding of its own consistency in an +idealized + Utopian +sense. On the other hand, +\textsection 6 +suggested +these +two +remarks by G\"{o}del and Hilbert + might receive +more sympathetic interpretations, +if one +sought to explore +such questions from a less ambitious +almost engineering-style perspective. + + + + +Our +main thesis is +supported by a +theorem +from \cite{ww6}. It indicated that +tableaux +variations of self-justifying systems have no difficulty +in recognizing that an infinitized generalization of +a computer's +floating point multiplication (with rounding) is a total +function. The latter +differs from integer-multiplication, +by not having its output become double the length of +its input when a number is multiplied by itself. +Thus, the +intuitive +reason +\cite{ww6}'s + multiplication-with-rounding operation +is compatible with self-justification is +because it + avoids the +inexorable +exponential +growth under +rule \eq{smart-squeeze}'s sequence + $ y_0, y_1, y_2 .. ~ $. + +\bigskip + + +%\newpage + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + +%% bbbbbbb +Also, \thx{ttt4} indicates +self-justifying logics +can view +double-precision +integer multiplication +similarly +as + a total function. +In particular for +any arbitrary pair +of integers + $(a,b)$, +let us employ a notation convention where: +\bee +\item +{\bf Size(a,b)} denotes the maximum of +$ \, \lceil \, 1 \, + \,$Log$_2 \,a \, \rceil \, $ +and +$ \, \lceil \, 1 \, + \,$Log$_2 \,b \, \rceil \, $. +% $\, 1 \, + \,$Log$_2 \,b \,$. +\item The quantities +{\bf Left$(a,b)$} +and {\bf Right$(a,b)$} +represent the multiplicative product +of +the integers +$~a~$ and $~b~,~$ insofar as +Right$(a,b)$ +represents the rightmost bits of this product +of length Size(a,b), and +Left$(a,b)$ encodes the remaining bits to the left +of Right$(a,b)$ +(whose length will also be bounded by Size(a,b) ). +\ene +Within this context, +\thx{ttt4} indicates +self-justifying logics +self-justification +are able to view double-precision +integer-multiplication as +a total function. + +%% bbbbb +\begin{theorem} +\label{ttt4} +Let us assume +the $ \,A \,$ in +IS$_D(\aaa)$ and +$\ \beta \,$ in +\I2 +are axiom systems all of whose $\Pi_1^*$ +theorems are true statements under the standard model +of the natural numbers. +Then +if $D$ corresponds to either semantic tableaux or +\txl{1} deduction, +it is possible to formalize +systems +$~A^* \, \supseteq \, A~$ +and +$~\beta^* \, \supseteq \, \beta~$ +such that \js and \ns are self-justifying +extensions of respectively +IS$_D(\aaa)$ and +\I2 +which can recognize +%that +each of +the +double-multiplicative precision +operations of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ +%(that define the double-precision multiplicative product +%of $a$ and $b$) +as total functions. +\end{theorem} + +%% bbbbb +{\bf Proof Sketch;} The justification of \thx{ttt4} +is +% very +similar to +\cite{ww6}'s analysis of +Floating Point Multiplication +(with rounding). Our proof of \thx{ttt4} +will therefore be quite abbreviated. + +%% bbbbb +The first point is that it is +% quite +straightforward +to develop three $\Delta_0^*$ formulae, +called $\theta_1(a,b,y)$, + $~\theta_2(a,b,y)$ +and + $\theta_3(a,b,y)$, +that are the graphs of the functions + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +% Moreover, it +It +is also easy to construct a +finite set of $\Pi_1^*$ sentences, +holding true in the Standard Model, +called $~\gamma~$, +that know how to correctly interpret these three + $\Delta_0^*$ formulae, +insofar as $~\gamma~$ knows: +\bee +\item For each +%fixed +$a$ and $b$, there exists no more +than one integer $~y~$ that satisfies each of our +three $\theta_j(a,b,y)$ formulae. +\item For each +%fixed +$a$ and $b$, +our three $\theta_j(a,b,y)$ formulae +correctly simulate +the +graphs of +the respective +functions of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$. +\ene +%Moreover since +Since +our U-Grounding language contains the built-in +function primitives of ``Maximum'' and``Double$(x)$'', +the Group-1 component of +IS$_D$ +and IS$_D^{\#}$ +% formalisms +can +easily +verify that +the + operation +$F(a,b)$, defined below is a total function: +\beq +\label{F-def} +~F(a,b)~~=~~\mbox{ Double (Double (Double (Max}(a,b)))) +\enq +This implies, in turn, that +there exists a $\Pi_1^*$ sentence, called $\gamma^*$, that +will enable our formalism to verify that each of + Size$(a,b)$, +Left$(a,b)$ and +Right$(a,b)$ are total functions (simply because +their output values are less than +$~F(a,b)$'s output). + +The main point is that the hypothesis of \thx{ttt4} + indicated that +all the axioms of + $ \,A \,$ and +$\ \beta \,$ +did hold +true under the Standard Model, +and the preceding paragraph showed the same +was + true for all the axioms in + $~\gamma~$ and $~\gamma^*~$, +Hence all the axioms in +$~A^*~=~A~+~ \gamma~+~\gamma^*~$ +and +$~\beta^*~=~\beta~+~ \gamma~+~\gamma^*~$ +also +hold true in the Standard Model. +By Theorems \ref{ttt1} and \ref{ttt2}, +this implies that +IS$_D(\aaa)$ and +\I2 and are self-justifying formalism +satisfying \thx{ttt4}'s claims. $~~\Box$ + + + +%% \ik3 +%% represents Peano Arithmetic. Then +%% IS$_D(\aaa)$ and \ik3 +%% can formalize +%% two total functions, called Left$(a,b)$ +%% and Right$(a,b)$, +%% where any pair +%% of integers +%% $(a,b)$ +%% is mapped onto +%% the left and right halves of +%% $a$ and $b$'s multiplicative +%% product. + + +\begin{remark} +\rm +\label{rem-new} +One +subtle +%% slightly tricky +aspect is that our positive +results, +involving +\cite{ww6}'s +floating point multiplication +primitive +and \thx{ttt4}'s +analogous +double precision multiplication +operation, +{\it should +not be confused} with a +quite different +exploration of integer multiplication +in the context of our analysis of Herbrand +consistency +in \cite{ww9}. +The latter took advantage +of the fact that +our deployed + Herbrand-styled proofs +%%% in \cite{ww9}'s paradigm , are +in \cite{ww9} were +exponentially +longer than their +tableaux +counterparts +(thus allowing \cite{ww9} +to formalize +a limited use of multiplication). +This was because +% its +\cite{ww9}'s +deductive +methods +were +%%%%% were, inherently, +exponentially +less efficient +at an inherent +level. +Thus + \cite{ww9}'s result, +while +of +%somewhat +%% +%%certainly +%%perhaps +%% +theoretical +%theoretically +interest, +is +%essentially +%%% hhhhh +basically +irrelevant to +the core +engineering environments, +%e.g. +which +constitutes +% are +the + main +% central +focus of + Theorems \ref{ttt1}--\ref{ttt4}. +%% +%% (especially in regards to their +%% particular interpretations +%% given in +%% Remark \ref{rem2}). +%% +\end{remark} + + +%% In other words, Remark \ref{rem-new}'s +%% observation is, once again, connected to +%% the crucial distinction between +%% % an +%% engineering +%% and mathematical viewpoints +%% about +%% the +%% significance of theorem-proving. + + + +%%%bbbb +Remark \ref{rem-new}'s +contrast between + \cite{ww9}'s results and \thx{ttt4} + is, once again, connected to +the distinction between +the +engineering +and mathematical viewpoints +about + the main +intentions +%importance +%significance +of theorem-proving. +% From an engineering perspective, +\thx{ttt4} +is helpful +from an engineering perspective +because most +% of the +pragmatic +%engineering +applications +of integer multiplication +are analogous to either +%% +%% correspond to +%% essentially +%% % what correspond to be +%% the standard computerized word-oriented integer-multiplication +%% primitive +%% %operations +%% or +%% its +%% %their +%% conventional +%% + computerized double-precision +multiplication or its +quadruple-precision or hexagonal +% -precision +% computerized +generalizations. + +\thx{ttt4} +(and its quadruple-precision +and +% hexagonal-precision generalizations) +hexagonal generalizations) +% helpfully +indicate +% such +these +% pragmatic +operations are +% fully +compatible with a formalism recognizing its own +semantic tableaux +%and \txl{1} +consistency. + +\section{A Different Type of Evidence Supporting +Our +Thesis} + +\label{pppp8} + + +Let us recall + Pudl\'{a}k and Solovay +\cite{Pu85,So94} +observed +that +essentially all +Type-S +systems, +containing merely +statement \eq{totdefxs}'s +axiom that successor is a total function, +cannot verify their own consistency under +Hilbert deduction. +(See also related work by +Buss-Ignjatovic \cite{BI95}, +H\'{a}jek and + \v{S}vejdar \cite{Sv7}, +as well as \cite{ww1}'s +Appendix A.) + + +It turns out that +\cite{wwlogos} generalized +these + results to +show that +\ep{totdefxa}'s +Type-A +systems are unable to verify their +own consistency under the +\txl{2} deduction +system +(defined +in +\textsection + \ref{pppp3}). +At the same time, +the IS$_D$ +and IS$^{\#}_D$ +frameworks, +from Sections \ref{pppp4} + and \ref{pppp5}, can verify +their own consistency under +\txl{1} deduction. Our goal in this section will be to +illustrate how the +tight + contrast between these positive and negative +results +is +analogous to the differing growth rates +of +the +sequences +$ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from + rule \eq{smart-squeeze}. + + + + +During our discussion +$~G_i(v)~$ will denote +the scalar-multiplication +operation that maps +an integer $~v~$ onto +$~ 2^{2^i}\cdot v~$. +Also, $~\Upsilon_i~$ will denote +the statement, in the U-Grounding language, that +declares that + $~G_i~$ is a total function. +Our paper \cite{wwlogos} +proved that $~\Upsilon_i~$ has +a $\Pi_2^*$ encoding. It also implied that $~G_i~$ +satisfied: +\beq +\label{e-Gi} +G_{i+1}(v) ~~~ = ~~~ G_i(~ \, G_i(v)~ \, ) +\enq +It was +noted in \cite{wwlogos} that +this identity +implies one +can construct +an axiom system $ \beta $, comprised of +solely $\Pi_1^*$ sentences, +where +a semantic tableaux proof +can establish +$ \Upsilon_{i+1}$ +from +$ \beta+\Upsilon_i$ +in a constant number of steps. +This implies, in turn, that a \txl{2} proof from +$ \beta $ will require no more that O$(n)$ steps +to prove $ \Upsilon_{n}$ (when it uses the obvious +n-step process to +confirm in chronological order +$~\Upsilon_1 \, , \, \Upsilon_2 \, , \, ... \Upsilon_n ~.~~)$ + + +\smallskip + +These observations are significant because +$G_n(1)=2^{2^n}$. +Thus, +\cite{wwlogos} +% showed +established that +a \txl{2} proof +from $\beta$ can verify +in +only + O$(n)$ steps +that this +quite large + integer exists. + + +\smallskip + +This example is helpful because it illustrates +the difference between the growth speeds +under +\txl{1} and \txl{2} deduction, is analogous +to the +differing +growth +rates +of +the +sequences $ x_0, x_1, x_2, ... $ +and $ y_0, y_1, y_2, ... $ +from rule \eq{smart-squeeze}. +Hence once again, a faster growth-rate +will usher in +the Second Incompleteness Theorem's power +(e.g. see \cite{wwlogos}). + + +This analogy suggests +that the +Second +Incompleteness +Theorem has different implications from the perspectives +of +Utopian and engineering +theories about + the intended +applications of mathematics. Thus, a Utopian +may possibly be + comfortable +with +a +perspective, that contemplates sequences + $ y_0, y_1, y_2, ... $ +with +elements growing in length +at an exponential speed, but many engineers may be +suspicious of such +growths. + + + + + + +A hard-core engineer, +in contrast, might + surmise that the inability of self-justifying +formalisms to be compatible with \txl{2} deduction is +not +as disturbing + as it might +initially +appear to be. +This is +because \txl{2} +differs from + \txl{1} deduction +by producing +exponential growths that are so sharp +that their material realization has no analog +in the everyday mechanical reality that is the +focus of an engineer's +interest. + +Our personal preference is for +a perspective lying +half-way +between +that of an Utopian mathematician and +a hard-nosed engineer. +Its +dualistic +approach +suggests +some form of diluted +partial agreement +with Hilbert's goals +in $**$ (in a context where the broad significance of +the Second Incompleteness Theorem is obviously +undeniable). + + + + + + + + +\section{Outline of \thx{ttt2}'s Proof and +% Exploration of +% Further Discussion +Its Implications} + +\label{new9} +\label{newppp9} + + +The prior two sections of this article +offered an intuitive explanation about why our +self-justifying axiom systems needed omit the +assumption that multiplication is a total function +and +could verify their consistency +% verified their own consistency +only + under +% for +semantic tableaux and +\txl{1} deduction. + + +%%% \txl{1} deduction +%%% (rather than a stronger \txl{2} +%%% rule of inference). + + +We already noted +%that +\thx{ttt2}'s +observation that + IS$_D^{\#}$ +%% proof +%% that +is consistency-preserving +%transformation +has essentially an +analogous +% hhhh +%identical +proof as \cite{ww5}'s +demonstration that +%\K1 + IS$_D$ +is consistency-preserving. +It is not our intention to repeat +such a proof here. + +%%a +%%virtual +%% analog of +%%\cite{ww5}'s proof here. + +Instead, our goal will be to provide a brief overview +of the techniques +%appeared in \cite{ww5}'s proof. This +that \cite{ww5} +had +used. This +overview +will be +% brief but +%%% +%%% will not delve into all \cite{ww5}'s details. +%%% It will, +%%% however, be +%%% +sufficient +for +% so that +a reader +to +% can quickly +appreciate +the +% main +underlying +intuition. + +%the underlying intuition. + + +%%gain an intuition behind the +%%underlying nature +%% of Theorems \ref{ttt1} +%%and \ref{ttt2}. + +\bigskip + +More precisely, +two different types of proofs of \thx{ttt1} +had appeared in our 2002 conference paper \cite{tab2} +and subsequent journal paper \cite{ww5}. The +latter +%result +was more appropriate for an archival +journal because its self-justification result +applied to both semantic tableaux deduction and its +\txl{1} generalization. +The more compressed conference paper +\cite{tab2} proved the analog of \thx{ttt1} +only for tableaux deduction +(using a technique +% thus +that was +%pleasantly +somewhat +shorter +than \cite{ww5}'s more elaborate +result). +Our +% brief +summary of \thx{ttt1}'s +proof, +here, + will focus on the semantic tableaux deduction +methodology so it can apply to either of +\cite{tab2} +or \cite{ww5}'s +methods. +%results. + +%% +%%Our discussion +%%%in this section +%%will focus mostly on +%%\cite{ww5}'s more +%%sophisticated +%% result, but it should +%%be also helpful to readers who +%%wish to +%%examine only +%%\cite{tab2}'s +%%simpler +%%but +%%%% +%%%% and slightly simpler +%%%% presentation of a +%%%% +%%less ambitious result. + +Both of \cite{tab2,ww5} +%% had +% formalisms were +justified \thx{ttt1} +by means of proofs by +contradiction. +Thus if \thx{ttt1} +was false, +they +% both +noted +% then there would exist +%two +a pair of +proofs +%of +for +a $\Pi_1^*$ sentence and its negation +would exist +from +IS$_D(\aaa) $. + + + +Let us call these two proofs $P$ and $Q$. +Then \cite{tab2,ww5} both +showed +(using different constructions) that +one could construct from $(P,Q)$ +two other proofs $(p,q)$ of another +$\Pi_1^*$ sentence and its negation +such that: +\beq +\label{catch} +\mbox{Max}(p,q) ~~ < ~~ +\mbox{Max}(P,Q) +\enq +The inequality in \eq{catch} +is significant because it +will enable our proofs-by-contradiction to establish + the non-existence +of an ordered pair + $(P,Q)$ violating \thx{ttt1}'s assumption. +This is because +%otherwise +\eq{catch} +would +otherwise +violate the Principle of Induction by showing +there exists no such minimal ordered pair + $(P,Q)$ +eschewing \thx{ttt1}'s formalism. + +The +exact +details of these proofs by contradictions are too lengthy +%for us +to fully summarize +% them +here. +For the case where $D$ in \thx{ttt1} +is the semantic tableaux deduction method, they used the fact +that if $(P,Q)$ was the ordered pair with +minimal $ \mbox{Max}(P,Q)$ value violating +\thx{ttt1}'s hypothesis, +then one could +isolate +two +particular root-to-leaf paths in the tableaux +proofs $P$ and $Q$ that would enable us to construct an +additional pair $(p,q)$ +that violated \thx{ttt1} and satisfied +\eq{catch}'s inequality. + +This construction of + $(p,q)$ from $(P,Q)$ +utilized the fact that + \thx{ttt1}'s +axiom system + IS$_D(\alpha) $ recognized addition but not multiplication +as a total function. +Otherwise, \thx{ttt1}'s delicate +proof-by-contradiction would collapse entirely +(as a result of +the exponentially faster growth +properties +of multiplication +that was formalized by the +series + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship). + + +These observations reinforce the theme of +\textsection \ref{pppp7} +about the contrast between the slower growing series + $ x_1, x_2, x_3, ... $ +and its exponentially faster counterpart + $ y_1, y_2, y_3, ... $ +under Line \eq{smart-squeeze}'s + recurrence +relationship. +These two series defined the +% respective +growth rates produced by the addition and +multiplication function symbols +% with +as, respectively, +$ \, x_n \, = \, 2^{ n+1} \, \, $ and +$ \, y_n \, = \, 2^{2^n} \, $. +They +thus illustrated +% thus, once again, illustrate +how multiplication's faster growth rate +leads to such a +%% +%% The themes of Sections \ref{ppp7} and +%% \ref{ppp8} was that the latter growth rate +%% represented a +%% +dizzying exponential speed-up, +that +% will +% would +makes +one at least partially sympathetic to a +hard-nosed engineer's skepticism about +its +implications. + +%significance. + +Thus if one were to +preclude such a dizzying growth rate then +a partial justification of a diluted version +of Hilbert's consistency program would arise, +in the context of systems possessing +{\it weak but well defined} knowledges of +their own consistency. +On the other hand, if the conventional assumption +that multiplication is a total function is presumed, +then the traditional interpretation of the +Second Incompleteness Theorem will +% , of course, fully +prevail. + + +%% +%% +%% Hence some partial caveats can be attached to the +%% Second Incompleteness Theorem that carry some +%% credibility from an hard-nosed engineering +%% perspective, while +%% simultaneously +%% they +%% fail to apply to a +%% %at the same time not +%% %be germane to a fully +%% pristine +%% mathematical +%% perspective +%% focused around the +%% Logical Platonism +%% (that G\"{o}del +%% had +%% explicitly explored). +%% %wrote about). + + +% \large + +% \baselineskip = 1.5 \normalbaselineskip + + +\section{Related Reflection Principles} + + +\label{pppxppp10} + +An added point is that there are many +types of +self-justifying systems available, with some +better suited for engineering environments +than others. + + +% bbb +For instance, our initial 1993 paper \cite{ww93} +employed a Group-3 {\it ``I am consistent''} axiom +that was much weaker than +the current specimen. +The distinction was that +\cite{ww93}'s self-consistency declaration +excluded +merely +the existence of a semantic tableaux proof +of $0=1$ from itself, while +the +sentence \eq{group3} is +more elaborate because +it excludes the existence of simultaneous proofs +of a $\Pi_1^*$ theorem and its negation. + + +Ideally, one would like to +develop self-justifying +systems $~S~$ that +% could +can +corroborate the validity +of \eq{brxefl}'s reflection principle for all sentences +$\Phi$. +\beq +\label{brxefl} +\forall p ~~[~ Prf_S^D(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +L\"{o}b's Theorem +establishes, +however, + that all + systems $S$, +containing +Peano Arithmetic's +strength, are able to prove +\eq{brxefl}'s invariant +{\it only in the degenerate case} where they +do +prove $\Phi$ +itself. Also, the Theorem 7.2 from \cite{ww1} +showed +essentially all +axiom systems, +{\it weaker} than Peano Arithmetic, are unable to prove \eq{brxefl} +for all $\Pi_1^*$ sentences $\Phi$ +simultaneously. Thus, +\thx{ttt5} +will be near optimal: + +%% xxxxx + +%%% bbbbb +\begin{theorem} +\label{ttt5} +Let us recall that the difference between \thx{ttt1}'s +axiom system + IS$_D(A)$ +and \thx{ttt3}'s formalism +\ik3 +was that the latter replaced + IS$_D(A)$'s infinite-sized Group-2 axiom schema +with \ik3's compact 1-sentence axiom +\eq{globsim}, so that the latter system could at least verify +\eq{t5kern}'s kernelized statement +for +each $\Pi_1^*$ theorem that $A$ proved. +\beq +\label{t5kern} + \forall ~x~~ +\mbox{Test}_{\, i \,} (~\ulxyz~\Psi~\urxyz~,~x~) +\enq +Let likewise $IS^\lambda_\#( \, \beta_{A,i} \, )$ +denote the modification of \cite{ww1}'s $IS^\lambda(A)$ +self-justifying +system +that replaces the latter's Group-2 schema with +\eq{globsim}'s more compact single-sentence axiom declaration +(and +% again +%accordingly +then +has its Group-3 {\rm ``I am consistent''} +axiom statement +reflect this change, +once again). +Then in a context where ``semtab'' is an abbreviation for +semantic tableaux deduction, +the formalism $IS^\lambda_\#( \, \beta_{A,i} \, )$ +will be able to: +\bee +\item +Verify that +semantic tableaux + deduction supports the +following analog of +\eq{brxefl}'s +self-reflection principle +under + $IS^\lambda_\#( \, \beta_{A,i} \, )$ +%%% $S$ +for any +$\Delta_0^*$ and $\Sigma_1^*$ +sentences $\Phi~~$: +\beq +\label{nrxefl} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Rightarrow ~~ \Phi~~] +\enq +\item +Verify +\eq{rdilute}'s more general +{\bf ``root-diluted''} reflection principle +for $IS^\lambda_\#( \, \beta_{A,i} \, )$ +whenever +$\theta$ is $\Sigma \, _{1}^*$ +and + $\Phi$ is a $\Pi_2^*$ sentence of the +form ``$~\forall u_1 ... \forall u_n~~ + \theta(u_1... u_n )~$''. +\beq +\label{rdilute} +\forall p ~[~ Prf_{IS^\lambda_\#( \, \beta_{A,i} \, )}^{\rm semtab} +(\ulxyz \Phi \urxyz,p) + ~~ \Longrightarrow ~ \forall x~ + \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ + \theta(u_1... u_n ) ~] +\enq +\ene +\end{theorem} + + + +%% bbbb +As is suggested by the similarity between the +definitions of $IS^\lambda(A)$ and + $IS^\lambda_\#( \, \beta_{A,i} \, )$, +the proof of \thx{ttt5} is essentially +identical to +\cite{ww1}'s +analysis of $IS^\lambda(A)$. +For the sake of brevity, we will not repeat +the relevant proof here. + + + + +%%% +%%% \begin{theorem} +%%% \label{tts5} +%%% For any +%%% input axiom system $A$, +%%% it is possible to extend the self-justifying +%%% IS$_D(\aaa)$ and \ik3 +%%% systems, +%%% from Theorems \ref{ttt1} and \ref{ttt3}, +%%% so +%%% that the resulting +%%% self-justifying logics +%%% $S$ +%%% can also: +%%% \bee +%%% \item +%%% Verify that \txl{1} deduction supports the +%%% following analog of +%%% \eq{brxefl}'s +%%% self-reflection principle +%%% under $S$ +%%% for any +%%% $\Delta_0^*$ and $\Sigma_1^*$ +%%% sentences $\Phi~~$: +%%% \beq +%%% \label{nrxefl} +%%% \forall p ~~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Rightarrow ~~ \Phi~~] +%%% \enq +%%% \item +%%% Verify +%%% \eq{rdilute}'s more general +%%% {\bf ``root-diluted''} reflection principle +%%% for $~S~$ +%%% whenever +%%% $\theta$ is $\Sigma \, _{1}^*$ +%%% and +%%% $\Phi$ is a $\Pi_2^*$ sentence of the +%%% form ``$~\forall u_1 ... \forall u_n~~ +%%% \theta(u_1... u_n )~$''. +%%% \beq +%%% \label{rdilute} +%%% \forall p ~[~ Prf_S^{\rm Tab-1} +%%% (\ulxyz \Phi \urxyz,p) +%%% ~~ \Longrightarrow ~ \forall x~ +%%% \forall u_1< \sqrt{x}~~ ... ~~ \forall u_n< \sqrt{x}~~ +%%% \theta(u_1... u_n ) ~] +%%% \enq +%%% \ene +%%% \end{theorem} +%%% + + +%% \thx{ttt5}'s proof +%% will +%% rest +%% upon +%% hybridizing +%% the techniques from +%% \cite{ww1}'s +%% tangibility reflection principle +%% with Theorem +%% \ref{ttt3}'s +%% methodologies, +%% in a +%% natural +%% very +%% manner. +%% %hhhh +%% Its proof is summarized in Appendix D. + + + +% \baselineskip = 1.21 \normalbaselineskip +\parskip 4pt + +Analogous to our +other +results, +\thx{ttt5} +reinforces +% the +our + theme about how +exceptions +to +the Second Incompleteness Theorem +may +appear to +be +{\it quite +minor} +from the perspective of +an Utopian +view of mathematics, +while +being +significant +from an engineering standpoint. +In \thx{ttt5}'s +particular case, +this is +because: +\bed +\item[A. ] +The ability of \thx{ttt5}'s +system +%%% $S$ +to +support +\eq{nrxefl}'s +self-reflection principle +under +tableaux +%\txl{1} +proofs for +any + $\Delta_0^*$ and $\Sigma_1^*$ sentence, +as well as +to +support +\eq{rdilute}'s +root +reflection principle +for $\Pi_2^*$ sentences, +is +clearly +significant. +\item[B. ] +The incompleteness result +of \cite{ww1}'s +Theorem 7.2 +imposes, +however, +sharp limitations upon Item A's +generality +(in that it cannot be extended to +fully all + $\Pi_1^*$ sentences, +{\it in an undiluted sense).} +\ennd +% +% \noindent +Thus, +the tight fit +between + A and B +is +reminiscent of +other +slender +borderlines, +that separated +generalizations and +boundary-case exceptions +for the +Incompleteness Theorem, +explored +earlier. +Once again, +the Second Incompleteness +Theorem +is +seen + as robust, +from an +idealized +Utopian perspective on mathematics, +while +permitting +caveats +from +engineering +styled +perspectives. + +This + dualistic +viewpoint +allows one to +nicely +share +{\it partial (and not full)} +agreement with +Hilbert's +main aspirations in $**$, +$\,$while also + appreciating +the + stunning +achievement +of +the Second Incompleteness Theorem. + + + + + + + + +\section{Concluding Remarks} + +\label{ppppp10} + + +At a purely technical level, +this article has reached beyond +our prior papers in +several +respects, +including +\textsection \ref{pppp5}'s demonstration +that any +initial +system $A$ +can have a kernelized image of its + $\Pi_1^*$ knowledge duplicated by +\ik3's {\bf strictly finite sized} +self-justifying +system, +as well as +%and also by + Section +\ref{pppp6}'s +and +Remark \ref{rem2}'s +quite + pragmatic + L-fold generalizations +of +\thx{ttt3}. + +% this result. + + + + +These +perspectives +%results +help resolve the mystery +that has +enshrouded +the Second Incompleteness Theorem and the statements +$*$ and $**$ +of G\"{o}del and Hilbert. +This is because +we have +{\it meticulously separated} +the goals of a +pristine theoretical study of mathematical +logic +from +those of +a + {\it +finite-sized} +axiomatic +subset of mathematics, +intended + for modeling +mostly +an engineering environment. + + + + + + + + + +There is no question that +G\"{o}del's Second +Theorem +is ideally robust, +relative to a +purely pristine +approach to mathematics. +On the other hand, we suspect +Hilbert +was +{\it half-way +correct} by + speculating +in + $**$ +about humans +possessing +a knowledge +about + their own consistency, +{\it in at least some +% strikingly + weak +and + tender sense,} as +essentially a +% fundamental +prerequisite +for +{\it psychologically + motivating} +their cogitations. +%%%% hhhhhh +Thus in a context where the limitations of axiom systems, +that fail to recognize multiplication as a total function, +are manifestly +obvious, +%% +%% +%% +%% even when +%% such systems +%% duplicate +%% Peano Arithmetic's +%% central +%% $\Pi_1^*$ knowledge, +%% +it is legitimate to +inquire + whether some +future +specialized +21st century computers + might +find +some +{\it partial-albeit-and-not-full} redeeming +value +in formalisms +having +{\it weak-style} + knowledges +of +their + \txl{1} consistency, +as well as possessing a knowledge of +Peano Arithmetic's +$\Pi_1^*$ theorems. + + +%%%% hhhh +%%More precisely, +Sections +\ref{pppp5}-\ref{pppxppp10} +were, +thus, + intended +to provide +a +unified +broad-scale +interpretation of our +diverse + earlier +results +that had appeared +%appearing +in \cite{ww93}-\cite{ww9}. +%from +%\cite{ww93,sp0,ww1,ww2,wwlogos,ww5,wwapal,ww6,ww7,ww9}. +In a +context where +the +Incompleteness +Theorem is +%% +%% firmly +%% understood +%% to be +%% + sufficiently +ubiquitous + to preclude Hilbert's +aspirations in $**$ +from +ever +being fully realized, +they show +how +some +{\it fragmentary portion} of Hilbert's +conjectures +can +be corroborated by +{\it judiciously weakened} logics, +using a formalism, that is +{\it much less} than ideally robust, +{\it although +not fully immaterial}. + +%\medskip + +\bigskip + +Such partial evasions of the Second Incompleteness Effect +are certainly not broad-scale, but they +do corroborate a fragment of what G\"{o}del and Hilbert +%referred to +had +sought +as +% ideal +their +desired +goals, +expressed + in the statements $*$ and $**$. + +\newpage + +%\bigskip + + {\bf Acknowledgments:} $~$I thank + Bradley Armour-Garb and Seth Chaiken for +many + useful suggestions about how to +improve the presentation of our results. +%% I also thank the anonymous referees for their comments. +This research was +partially supported +by NSF Grant CCR 0956495. + + +\small + \parskip 2 pt +\baselineskip = 0.86 \normalbaselineskip + + + +\bibliographystyle{abbrv} +\bibliography{b15} + + + + +% eeee end end +% \newpage + + + + + +%\large +% \baselineskip = 1.5 \normalbaselineskip + +% \baselineskip = 1.2 \normalbaselineskip + + \parskip 4 pt + +\ssspace + +\section*{Appendix A: Definition of a +Semantic Tableaux Proof } + +The +definition of a semantic tableaux proof, +provided here, +will be similar to analogous definitions used in +say Fitting's or Smullyan's textbooks + \cite{Fi90,Smul}. + +%% For simplicity +%% during our discourse, +%% a sentence $~\Psi~$ +%% will be called PRENEX$^*$ iff it is written in the +%% form $Q_1 \, x_1~Q_2\, x_2...~Q_n \, x_n~~\theta(x_1,x_2...x_n)~$ +%% where $~\theta(x_1,x_2...x_n)~$ is a $\Sigma_0^-$ formula +%% and $Q_i$ denotes either the symbol $\forall$ or $\exists$. + +During our +discussion, a +% discourse, a +{\bf $\Phi$-Based Candidate Tree} for +an axiom system $\, \alpha \,$ +will be defined +to be a tree structure +whose root corresponds to +the sentence $~\neg \, \Phi~,~$ rewritten in +prenex normal form, and whose all other nodes are +either axioms of $~\alpha~$ or deductions from higher +nodes of the tree +(using the Rules 1-6 defined below). +More precisely, our six rules +(below) + have +``$~ \cal{A} ~ \longmapsto ~ \cal{B} ~$'' denote +that $~ \cal{B} ~$ +is a valid deduction +from $~ \cal{A} ~$. +They +% thus +specify when such a +descendant +node $~ \cal{B} ~$ is allowed to +appear below an ancestor $~ \cal{A} $ +%% +%% is an ancestor of $~ \cal{B} ~$ +%% in the candidate tree $~T~$. In this notation, the deduction +%% rules allowed +%% +in a candidate tree: +\begin{enumerate} + \parskip 1 pt +\item $~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Upsilon +~$ +and +$~ \Upsilon \wedge \Gamma \, ~ \longmapsto ~ \, \Gamma ~$ . +\item $~ \neg \,\neg \, \Upsilon ~ \longmapsto ~ \Upsilon~$. +Other +% valid Tableaux +rules for +the ``$~ \neg ~$'' symbol include: $~$ +$~\neg ( \Upsilon \vee \Gamma ) ~ \longmapsto ~ \neg \Upsilon +\wedge \neg \Gamma~$, +$ \, \neg ( \Upsilon \Rightarrow \Gamma ) \, \longmapsto \, \Upsilon +\wedge \neg \Gamma \, $, +$ ~~~~\, \neg ( \Upsilon \wedge \Gamma ) \, \longmapsto \, \neg +\Upsilon \vee \neg \Gamma \, $, + $~ \, \neg \, \exists v \, \Upsilon (v) \, \longmapsto \, +\forall v \neg \, \Upsilon (v) \, $ and + $ ~\, \neg \, \forall v \, \Upsilon (v) \, \longmapsto \, +\exists v \, \neg \Upsilon (v)$ +\item A pair of sibling nodes $~ \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof +tree when their ancestor is +$~\Upsilon \, \vee \, \Gamma~$. +\item A pair of sibling nodes $~ \neg \Upsilon ~$ and $~ \Gamma ~$ is +allowed in +a +%candidate +proof + tree when their ancestor is +$~\Upsilon \, \Rightarrow \, \Gamma~$. +\item $~ \exists v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(u) ~$ +where $~u~$ denotes a newly introduced ``Parameter Symbol''. +\item $~ \forall v \, \Upsilon (v) ~ \longmapsto ~ \, \Upsilon(t) ~$ +where $~t~$ denotes a ``Composite Term''. +These terms here are +built out of +combination of + the U-Grounding Function symbols, +the constant symbols representing ``0'' and ``1'' +and the parameter symbols $~u_1,u_2,..,u_n~$, +where each +%symbol +$~u_i~$ {\bf was previously} +introduced by +% instance of +applying +Rule 5 +%applying +to +an ancestor +of the node storing +% the current new deduction + ``$ ~ \, \Upsilon(t) ~$''. +\end{enumerate} +Define a particular leaf-to-root branch in a candidate +tree $~T~$ to be {\bf Closed} iff it contains both some sentence +$~ \Upsilon ~$ and its negation $~ \neg \, \Upsilon ~$. + A {\bf Semantic +Tableaux} proof of $~\Phi~$ will then be defined to be +a candidate tree whose root stores the sentence +$~ \neg \Phi~$ (written in prenex normal +form) and all of whose root-to-leaf branches are +closed. + +% All our theorems in the current article have, + +Our +% discussion in the +current article has, +% will, +for simplicity, +used the preceding definition for a semantic tableaux proof. +Some of our prior articles +%have +used a minor modification +of this definition where there were two additional deduction +rules for ``bounded quantifiers'' of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$''. +It is technically unnecessary to use special rules for +such bounded quantifiers because these two expressions +can be treated as being equivalent to +\eq{bex} and \eq{beu}, respectively. +\beq +\label{bex} +\exists \, v ~~~~ v \leq t~\wedge~ \Upsilon (v) +\enq +\beq +\label{beu} +\forall \, v ~~~~ v \leq t~\Rightarrow~ \Upsilon (v) +\enq +Thus, we technically do not need special Elimination Rules +for bounded quantifiers of the form +``$~ \exists \, v \, \leq t~~ \Upsilon (v)~$'' +and ``$~ \forall \, v \, \leq t~~ \Upsilon (v)$'' +because statement +\eq{bex} allows the + former to be eliminated +by applying Rules 5 and 1, and likewise +\eq{beu} can +be processed via Rules 6 and 4. + + +%% For simplicity, we will thus rely upon the above 6-part definition +%% of semantic tableaux during the current article. +%% +%% ???? Remove above sentence ??? bbbbbbbbbbbbbbbbb + +\section*{Appendix B: Summary of G\"{o}del Encoding Method} + +Every +%% formalization of either a +generalization and +% a +boundary-case +exception for + the Second Incompleteness +Theorem +does +require + deploying a + G\"{o}del encoding methodology +(to make it well defined). +Such an encoding scheme will be +called +{\bf Optimally Linearly Compressed} if it requires: +\bed +\item[ A. ] +Only +$O(1)$ bits to store +each occurrence +of any +logical symbol +% any of the logical symbols +appearing in a tableaux proof +(except for the objects that +Items 5 and 6 of Appendix A called the $i-$th +``variable'' and ``parameter'' symbols). +\item[ B. ] +No more than +$O(~1~+~$Log$(i) ~)$ bits to +encode + a proof's +$i-$th +``variable'' and ``parameter'' symbols. +(This $O(~1~+~$Log$(i) ~)$ magnitude is unavoidable +because +there is no finite limit to the number of different +variable and parameter objects that may appear in +one of Appendix A's +semantic tableaux proofs.) +\ennd +All our published results about either +generalizations or +boundary-case +exception +for the Second Incompleteness Theorem have used such optimally +compressed encodings. + + +In particular, +our scheme for +encoding +a semantic tableaux proof + will use +the following +24 language symbols: +\begin{enumerate} +\small + \baselineskip = 1.1 \normalbaselineskip +\item The standard connective symbols of +$\wedge ,~ \vee ,~ \neg ,~ \rightarrow ,~ \forall$ +and $~ \exists$. +\item Two +left and two right parenthesis symbols +denoted as: $~(~$ , $~)~$ +$~\underline{\, ( \,}~$ and $~\underline{\, ) \,}.~$ +\item +Two symbols to represent the special constants of ``0'' and ``1''. +\item +Eight function symbols for representing for representing +the eight formal U-grounding functions of Addition, Doubling, Subtraction, +Division, Logarithm, etc. +\item +The relation symbols of +``$~=~$'' and ``$~ \leq ~$''. +\item The symbol $~ \hat{V} ~$ for designating +the presence of a basic variable $~v~$ +in a logical sentence. +\item The symbol $~ \hat{U} ~$ for designating +the presence of a parameter constant $~u~$ +in a logical sentence (which is produced by +Appendix A's +deduction rule 5 for +eliminating +existential quantifiers). +\end{enumerate} +Define a byte to be an unit consisting of six bits. +We +may +%will + think of a proof as +comprising + either + a sequence of +bytes or being an +equivalent +integer +written in base 64. +Each of the 24 symbols (above) will be given +some unique 6-bit code, ranging between 32 and +55. +Our method for representing the presence of +the i-th variable $~v_i$ +will be to encode it is as +a string +comprised +of +$\, \lceil \, log_{\, 32 \,}(i+1) \, \rceil ~+~1~$ bytes, where the +first byte is the ``$\, \hat{V} \,$'' symbol and the remaining bytes +encode +i as a base-32 number. +% with the convention that the lead bit in each +%byte's 6-bit sequence is ``0''. +The same convention will be used to denote the presence of +the i-th parameter $~u_i~$ +except its first byte will be the ``$\, \hat{U} \,$'' symbol. + + + +Our notation has employed {\it two types} of +parenthesis symbols because the first pair of +parenthesis symbols will have their usual meaning in punctuating a +mathematical +sentence, whereas the latter pair of symbols + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ +will {\it separate} the individual sentences in +a Semantic Tableaux proof tree. For example, +consider a tree which stores +1) the sentence $~\psi_1~$ as its root, 2) +the sentences $~\psi_2~$ and $~\psi_3~$ as the root's children, and 3) +$~\psi_4~$ as the child of $~\psi_3.~$ There are several +possible notation conventions for using the + $~\underline{\, ( \,}~$ and $~\underline{\, ) \,}~$ symbols +to encode a Semantic Proof tree. +Our encoding +convention will +presume +%be that +$~\psi_i~$ +is an ``ancestor'' of $~\psi_j~$ {\it if and only if} the range beginning +with the +parenthesis to $\psi_i$'s immediate left and continuing +to the matching right parenthesis includes +$~\psi_j.~$ +The example of our 4-node proof tree is thus +encoded as: +\begin{equation} +\label{paren} + ~~\underline{\, ( \,}~~ \psi_1 + ~~\underline{\, ( \,}~~ \psi_2~ + ~\underline{\, ) \,}~ + ~~\underline{\, ( \,}~~ \psi_3 + ~~\underline{\, ( \,}~~ \psi_4~ + ~\underline{\, ) \,}~~ \underline{\, ) \,}~~ \underline{\, ) \,}~ +\end{equation} + + +The preceding paragraph summarized our method for +encoding semantic tableaux proofs. Its +generalization +for +the +encoding of \txl{1} proofs is +straightforward. Thus if + $~p_1,p_2,...p_n~$ +collectively constitute +a list of semantic tableaux proofs +then the + natural concatenation +of their byte strings will be the corresponding + \txl{1} +proof. + +This ``Optimally Linearly Compressed'' encoding scheme +is +%noteworthy +essential +because all the core axiom systems, employed +in this article, are Type-A formalisms, that recognize Addition +but not Multiplication as a total function. If such formalisms +were less than optimally compressed then our main theorems +would lose relevance because the formalization +of +unnecessarily expansive encodings would be awkward +in the context of the slow growth properties of +Type-A formalisms. Thus, +our results carry much greater significance when their +% it is useful that our +encodings +of a proof satisfy the maximal compression properties, +% outlined in the first paragraph of +%that are +defined in +this appendix. + + +%% +%% This byte-styled encoding method is approximately analogous +%% to what Wilkie-Paris \cite{WP87} have called +%% a {\it natural B-adic} encoding or a similar +%% counterpart in the H\'{a}jek-Pudl\'{a}k textbook +%% \cite{HP91}. Such +%% compressed encodings are +%% considered to be more +%% meaningful and efficient than an uncompressed encoding method, +%% using say a Prime Number decomposition scheme \cite{Me97} +%% (because the latter has an unnecessarily long bit-length). +%% All our theorems would also be +%% valid for uncompressed +%% encoding methods. +%% However, they are more meaningful when one uses an +%% efficiently compressed +%% B-adic encoding method. +%% +%% %\newpage +%% + + + +%% +%% \large +%% \normalsize +%% \baselineskip = 2.0 \normalbaselineskip + + + +\section*{Appendix C: Formal Encoding of +%Statmenent \eq{group3}'s +the +Group-3 Axiom} + +Let us recall +%that +Appendix A +reviewed the definition of +a +semantic tableaux +and \txl{1} + proof, + and Appendix B formalized the +encodings +of such proofs. The goal of this appendix +will be to summarize the methodology +%% \cite{ww5} +%% that was +used to define +Statmenent \eq{group3}'s Group-3 +axiom +in \cite{ww5} . + +%%% Passive Voice change in above sentence much +%%% better because it understates my use of \cite{ww5} . + + +%% {\bf More Detailed Description of the Group-3 Axiom:} $~$ +%% A formal description of +%% IS$_D(A)$'s +%% Group-3 axiom is more complicated than the abbreviated +%% descriptions given either by +%% Sentence$~*~$ or by \ep{group3}'s analog. +%% The +%% main added complication is because +%% the Group-3 axiom declares the consistency of +%% a formal set of axioms that includes ``itself'' +%% (in the words of Sentence$~*~).~$ +%% As was noted in Section 1, the notion of an +%% axiom including +%% ``itself'' when it refers to the consistency +%% of an axiom schema dates back to Kleene's 1938 paper \cite{Kl38}. +%% However, Kleene's abbreviated +%% description is insufficient to establish that +%% \ep{group3} can be encoded precisely as +%% a +%% $\Pi_1^*$ sentence. The next two paragraphs will +%% explain how this can be done. + +Let + UNION($A$) denote the union of IS$_D(A)$'s Group-Zero, +Group-1 and Group-2 axioms. +It will be useful to employ the following notation: +\begin{description} +\item[ i] $\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)$ +will denote a formula designating +that $~p~$ is a proof of the theorem $~t~$ from the axiom +system UNION($A)$ using the deduction method $~D.~$ +\smallskip +\item[ ii] +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$ +will be a formula stating that +$~p~$ is a proof +(using the deduction method $~D~)~$ + of +a theorem $~t~$ +from the union +of the axiom system +UNION(A) with the added axiom +sentence specified by the integer +$\, h \,$. +\smallskip +\item[iii] + $\mbox{Subst} \, ( \, g \, , \, h \, )$ will denote +G\"{o}del's +classic substitution formula --- which yields TRUE when $\, g \,$ +is an encoding of a formula +and $\, h \,$ is an encoding of a sentence +that replaces all occurrence of free variables in $\, g \,$ with +% the formally +an +encoded term +% of +$~\underx{g}~$ +(that designates $g$'s G\"{o}del number.) +\smallskip +\item[ iv] +$\mbox{SubstPrf}_{~UNION(A)}^D~( \, g \, , \, t \, , \, p \,)$ +will denote the natural +hybridizations of the constructs from Items (ii) and (iii) +which yields a Boolean value of TRUE exactly when there +exists some integer $~h~$ +simultaneously +satisfying +{\it both} +the conditions + $\mbox{Subst} \, ( \, g \, , \, h \, )$ and +$\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)$. + +\end{description} +Each of (i)--(iv) +can be encoded as $\Delta_0^*$ formulae. +Thus, Appendices C and D of \cite{ww1} +%% thus, + explained how +the first three of these predicates can receive + $\Delta_0^*$ encodings when one applies +the theory of LinH functions +\cite{HP91,Kr95,Wr78}. +Hence, \eq{encode} illustrates +one possible $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{~UNION(A)}^D \,( g , t , p )$'s +graph. (It is +equivalent to +the statement +$~$``$~\exists ~h~[~\mbox{Subst} ( g , h )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D( h , t , p )\, ] \, \,$''$,~$ + but \eq{encode} is + a $\Delta_0^*$ formula --- {\it unlike} the quoted +expression.) +\begin{equation} +\label{encode} +\mbox{Prf}_{~UNION(A)}^D~( \, t \, , \, p \,)~~~\vee~~~\exists ~h\leq p +~~[~ \mbox{Subst} \, ( \, g \, , \, h \, )~\wedge~ +\mbox{ExPrf}_{~UNION(A)}^D~( \, h \, , \, t \, , \, p \,)~] +\end{equation} + +Let us recall that +$\mbox{Pair}(x,y)$ is a $\Delta_0^*$ sentence +specifying that + $~x~$ +and $~y~$ +are +the encodings of + a $\Pi_1^*$ +and $\Sigma_1^*$ sentence, +that are logical negations of each other. +Using + \eq{encode}'s + $\Delta_0^*$ encoding for +$\mbox{SubstPrf}_{UNION(A)}^D( g , t , p )$, +we can now explain +how +statement +\eq{group3}'s Group-3 Axiom can +be formally encoded. +Let +$~\Gamma(g)~$ +denote \ep{encode2}'s formula, +% and let + $~n~$ denote $~\Gamma(g)$'s +G\"{o}del number +and $\underx{n}$ +denote a term encoding $n$ in the U-Grounding language. +$~\,$Then +it will turn out that $~$``$~\Gamma(~ \underx{n}~)~$''$~$ +will be a $\Pi_1^*$ sentence +that is equivalent to + this Group-3 axiom. +\begin{equation} +\label{encode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( g , y , q ) \,] +\end{equation} +More precisely, \eq{newencode2} formalizes the encoding +of + $~$``$~\Gamma(~ \underx{n}~)~$''. +\begin{equation} +\label{newencode2} +\small +\forall \, x \, \forall \, y \, \forall \, p \, \forall \, q \, \, \neg \, \, +[ \,\mbox{Pair}(x,y) \wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , x , p ) +\wedge +\mbox{SubstPrf}_{UNION(A)}^D ( \underx{n} , y , q ) \,] +\end{equation} +%In particular, +Thus, +if we view +$~~$``$~\mbox{SubstPrf}_{~UNION(A)}^D~( \, + \underx{n} \, , \, t \, , \, p \,)~$'' +in \eq{newencode2} +as our formal method of +encoding the concept that was previously informally +called +``$~\mbox{Prf}~_{\mbox{IS}_D(A)}(t,p)~$'' +by Statement \eq{group3}, +then \eq{newencode2} amounts to +the formal encoding of +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration. + +\bigskip + +{\bf Reminder about +the Significance of + \eq{newencode2}'s Encoding :} +The preceding construction +%shows +had showed +merely that it is possible +to encode +Sentence +\eq{group3}'s Group-3 +{\it ``I am consistent''} axiom declaration +in a well-defined manner as a $\Pi_1^*$ +sentence. +It does not answer the more subtle question about whether or not +its +{\it ``I am consistent''} axiom declaration +holds +true + under the Standard model. +%of the natural numbers. +As we have noted before, +most analogs of +%the above sentence +\eq{newencode2} +produce false statements +%fail to hold True +under the Standard Model +because a conventional G\"{o}del-like +diagonalization argument will imply +that +most deduction methods $D$ will produce +%their resulting +axiom systems +$\mbox{IS}_D(A)$ +that are + inconsistent. + +\medskip + +The reason for our +particular +interest in +\eq{newencode2}'s +formal encoding is that +Theorems \ref{ttt1} and \ref{ttt2} +indicate that $\mbox{IS}_D(A)$ +is +%indeed +consistent when $D$ denotes +either the semantic tableaux or \txl{1} +deduction methodologies. Thus +\eq{newencode2}'s +Fixed-Point construction should be seen as a +methodology that has +%limited-but-subtle +limited applications, +but which is also +quite helpful (when it is feasible). + +%quite significant. +\end{document} + diff --git a/nachlass/collected_dew_materials/Wheat-and-Chessboard/2pm-jan11 b/nachlass/collected_dew_materials/Wheat-and-Chessboard/2pm-jan11 new file mode 100644 index 0000000..ce04c48 --- /dev/null +++ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/2pm-jan11 @@ -0,0 +1,50 @@ + +Wheat and Chessboard Problem + +started 400-600 Ad not known when + +Sissa Ibn Dahir supposedly invented chess board. + +Asked by King how he should be rewarded for such an invention +Reply was to put one grain of wheat on first square, 2 grains +on second square 4 on third square etc. King laughed at his small request and +replied he would be glad to do this as a reward to the inventor +of the chess board. But King could not satisfy this request. + +This exemplifies difference between an arithmetic and exponial +growth. + +I CHANGED MY MIND and term COMPACT REDUCER is better to use +below than COMPACT INVERTER. + +In particular, my next paper will use the term COMPACT REDUCER + `` COMPACT REDUCER for a base axiom system of \gamma +to describe and integer X that has the property that + \gamma can prove: + +\forall Y \exists Z such that X*Y= Z + +The basic point if that it is easy to construct +systems \gamma that can prove the identity that + +\forall X if X is a compact reducer (for \gamma) then +so is X*X a compact reducer (for \gamma). + +I developped this theorem while teaching Robert. The point +is that it leads to a simpler proof of a trivially +modified version circle-dot (where Item I is changed to require +that base axiom system A recognizes either addtion or +doubling as total functions). Either of these two changes +is good enough. when formalism A can prove a fixed finite +subset of PA's Pi_1* theorems. + +Possibly ``compact reducer'' to ``ironic reducer'' or +''ironic compactifier'' or ``compact multiplier'' +but I like ``compact reducer'' +best. + +It also has advatage of introducing generalizations called +Compact ``(J,K)'' Reducers. +and similarily ``Compact (J,K) Reduction Theorems''. +or perhaps better, it can be called a + ``Compacting (J,K) Reduction Theorem''. diff --git a/nachlass/collected_dew_materials/Wheat-and-Chessboard/n.tex b/nachlass/collected_dew_materials/Wheat-and-Chessboard/n.tex new file mode 100644 index 0000000..ce04c48 --- /dev/null +++ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/n.tex @@ -0,0 +1,50 @@ + +Wheat and Chessboard Problem + +started 400-600 Ad not known when + +Sissa Ibn Dahir supposedly invented chess board. + +Asked by King how he should be rewarded for such an invention +Reply was to put one grain of wheat on first square, 2 grains +on second square 4 on third square etc. King laughed at his small request and +replied he would be glad to do this as a reward to the inventor +of the chess board. But King could not satisfy this request. + +This exemplifies difference between an arithmetic and exponial +growth. + +I CHANGED MY MIND and term COMPACT REDUCER is better to use +below than COMPACT INVERTER. + +In particular, my next paper will use the term COMPACT REDUCER + `` COMPACT REDUCER for a base axiom system of \gamma +to describe and integer X that has the property that + \gamma can prove: + +\forall Y \exists Z such that X*Y= Z + +The basic point if that it is easy to construct +systems \gamma that can prove the identity that + +\forall X if X is a compact reducer (for \gamma) then +so is X*X a compact reducer (for \gamma). + +I developped this theorem while teaching Robert. The point +is that it leads to a simpler proof of a trivially +modified version circle-dot (where Item I is changed to require +that base axiom system A recognizes either addtion or +doubling as total functions). Either of these two changes +is good enough. when formalism A can prove a fixed finite +subset of PA's Pi_1* theorems. + +Possibly ``compact reducer'' to ``ironic reducer'' or +''ironic compactifier'' or ``compact multiplier'' +but I like ``compact reducer'' +best. + +It also has advatage of introducing generalizations called +Compact ``(J,K)'' Reducers. +and similarily ``Compact (J,K) Reduction Theorems''. +or perhaps better, it can be called a + ``Compacting (J,K) Reduction Theorem''. diff --git a/nachlass/collected_dew_materials/Wheat-and-Chessboard/n.tex~ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/n.tex~ new file mode 100644 index 0000000..1caf914 --- /dev/null +++ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/n.tex~ @@ -0,0 +1,49 @@ + +Wheat and Chessboard Problem + +started 400-600 Ad not known when + +Sissa Ibn Dahir supposedly invented chess board. + +Asked by King how he should be rewarded for such an invention +Reply was to put one grain of wheat on first square, 2 grains +on second square 4 on third square etc. King laughed at his small request and +replied he would be glad to do this as a reward to the inventor +of the chess board. But King could not satisfy this request. + +This exemplifies difference between an arithmetic and exponial +growth. + +I CHANGED MY MIND and term COMPACT REDUCER is better to use +below than COMPACT INVERTER. + +In particular, my next paper will use the term COMPACT REDUCER + `` COMPACT REDUCER for a base axiom system of \gamma +to describe and integer X that has the property that + \gamma can prove: + +\forall Y \exists Z such that X*Y= Z + +The basic point if that it is easy to construct +systems \gamma that can prove the identity that + +\forall X if X is a compact reducer (for \gamma) then +so is X*X a compact reducer (for \gamma). + +I developped this theorem while teaching Robert. The point +is that it leads to a simpler proof of a trivially +modified version circle-dot (where Item I is changed to require +that base axiom system A recognizes either addtion or +doubling as total functions). Either of these two changes +is good enough. when formalism A can prove a fixed finite +subset of PA's Pi_1* theorems. + +Possibly ``compact reducer'' to ``ironic reducer'' or +''ironic compactifier'' or ``compact multiplier'' +but I like ``compact reducer'' +best. + +It also has advatage of introducing generalizations called +Compact ``(J,K)'' Reducers. +and similarily ``Compact (J,K) Reduction Theorems''. + diff --git a/nachlass/collected_dew_materials/Wheat-and-Chessboard/noon-30-bak b/nachlass/collected_dew_materials/Wheat-and-Chessboard/noon-30-bak new file mode 100644 index 0000000..cd37386 --- /dev/null +++ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/noon-30-bak @@ -0,0 +1,16 @@ + +Wheat and Chessboard Probelm + +started 400-600 Ad not known when + +Sissa Ibn Dahir supposedly invented chess board. + +Asked by King how he should be rewarded for such an invention +Reply was to put one grain of wheat on first square, 2 grains +on second square 4 on third square etc. King laughed at his small request and +replied he would be glad to do this as a reward to the inventor +of the chess board. But King could not satisfy this request. + +This exemplifies difference between an arithmetic and exponial +growth. + diff --git a/nachlass/collected_dew_materials/Wheat-and-Chessboard/v1 b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v1 new file mode 100644 index 0000000..7641bd8 --- /dev/null +++ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v1 @@ -0,0 +1,13 @@ + +What and Chessboard Probelm + +started 400-600 Ad not known when + +Sissa Ibn Dahir supposedly invented chess board. + +Asked by King how he should be rewarded for such an invention +Reply was to put one grain of wheat on first square, 2 grains +on second square 4 o third square etc. King laughed at his small request and +replied he would be glad to do this as a reward to the inventor +of the chess board. But King could not satisfy this request. + diff --git a/nachlass/collected_dew_materials/Wheat-and-Chessboard/v4-bak b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v4-bak new file mode 100644 index 0000000..0b7a18f --- /dev/null +++ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v4-bak @@ -0,0 +1,39 @@ + +Wheat and Chessboard Probelm + +started 400-600 Ad not known when + +Sissa Ibn Dahir supposedly invented chess board. + +Asked by King how he should be rewarded for such an invention +Reply was to put one grain of wheat on first square, 2 grains +on second square 4 on third square etc. King laughed at his small request and +replied he would be glad to do this as a reward to the inventor +of the chess board. But King could not satisfy this request. + +This exemplifies difference between an arithmetic and exponial +growth. + +I CHANGED MY MIND and term COMPACT REDUCER is better to use +below than COMPACT INVERTER. + +In particular, my next paper will use the term COMPACT REDUCER + `` COMPACT REDUCER for a base axiom system of \gamma +to describe and integer X that has the property that + \gamma can prove: + +\forall Y \exists Z such that X*Y= Z + +The basic point if that it is easy to construct +systems \gamma that can prove the identity that + +\forall X if X is a compact reducer (for \gamma) then +so is X*X a compact reducer (for \gamma). + +I developped this theorem while teaching Robert. The point +is that it leads to a simpler proof of a trivially +modified version circle-dot (where Item I is changed to require +that base axiom system A recognizes either addtion or +doubling as total functions). Either of these two changes +is good enough. when formalism A can prove a fixed finite +subset of PA's Pi_1* theorems. diff --git a/nachlass/collected_dew_materials/Wheat-and-Chessboard/v5-bak b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v5-bak new file mode 100644 index 0000000..292f365 --- /dev/null +++ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v5-bak @@ -0,0 +1,49 @@ + +Wheat and Chessboard Probelm + +started 400-600 Ad not known when + +Sissa Ibn Dahir supposedly invented chess board. + +Asked by King how he should be rewarded for such an invention +Reply was to put one grain of wheat on first square, 2 grains +on second square 4 on third square etc. King laughed at his small request and +replied he would be glad to do this as a reward to the inventor +of the chess board. But King could not satisfy this request. + +This exemplifies difference between an arithmetic and exponial +growth. + +I CHANGED MY MIND and term COMPACT REDUCER is better to use +below than COMPACT INVERTER. + +In particular, my next paper will use the term COMPACT REDUCER + `` COMPACT REDUCER for a base axiom system of \gamma +to describe and integer X that has the property that + \gamma can prove: + +\forall Y \exists Z such that X*Y= Z + +The basic point if that it is easy to construct +systems \gamma that can prove the identity that + +\forall X if X is a compact reducer (for \gamma) then +so is X*X a compact reducer (for \gamma). + +I developped this theorem while teaching Robert. The point +is that it leads to a simpler proof of a trivially +modified version circle-dot (where Item I is changed to require +that base axiom system A recognizes either addtion or +doubling as total functions). Either of these two changes +is good enough. when formalism A can prove a fixed finite +subset of PA's Pi_1* theorems. + +Possibly ``compact reducer'' to ``ironic reducer'' or +''ironic compactifier'' or ``compact multiplier'' +but I like ``compact reducer'' +best. + +It also has advatage of introducing generalizations called +Compact ``(J,K)'' Reducers. +and similarily ``Compact (J,K) Reduction Theorems''. + diff --git a/nachlass/collected_dew_materials/Wheat-and-Chessboard/v6 b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v6 new file mode 100644 index 0000000..1caf914 --- /dev/null +++ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v6 @@ -0,0 +1,49 @@ + +Wheat and Chessboard Problem + +started 400-600 Ad not known when + +Sissa Ibn Dahir supposedly invented chess board. + +Asked by King how he should be rewarded for such an invention +Reply was to put one grain of wheat on first square, 2 grains +on second square 4 on third square etc. King laughed at his small request and +replied he would be glad to do this as a reward to the inventor +of the chess board. But King could not satisfy this request. + +This exemplifies difference between an arithmetic and exponial +growth. + +I CHANGED MY MIND and term COMPACT REDUCER is better to use +below than COMPACT INVERTER. + +In particular, my next paper will use the term COMPACT REDUCER + `` COMPACT REDUCER for a base axiom system of \gamma +to describe and integer X that has the property that + \gamma can prove: + +\forall Y \exists Z such that X*Y= Z + +The basic point if that it is easy to construct +systems \gamma that can prove the identity that + +\forall X if X is a compact reducer (for \gamma) then +so is X*X a compact reducer (for \gamma). + +I developped this theorem while teaching Robert. The point +is that it leads to a simpler proof of a trivially +modified version circle-dot (where Item I is changed to require +that base axiom system A recognizes either addtion or +doubling as total functions). Either of these two changes +is good enough. when formalism A can prove a fixed finite +subset of PA's Pi_1* theorems. + +Possibly ``compact reducer'' to ``ironic reducer'' or +''ironic compactifier'' or ``compact multiplier'' +but I like ``compact reducer'' +best. + +It also has advatage of introducing generalizations called +Compact ``(J,K)'' Reducers. +and similarily ``Compact (J,K) Reduction Theorems''. + diff --git a/nachlass/collected_dew_materials/Wheat-and-Chessboard/v7 b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v7 new file mode 100644 index 0000000..ce04c48 --- /dev/null +++ b/nachlass/collected_dew_materials/Wheat-and-Chessboard/v7 @@ -0,0 +1,50 @@ + +Wheat and Chessboard Problem + +started 400-600 Ad not known when + +Sissa Ibn Dahir supposedly invented chess board. + +Asked by King how he should be rewarded for such an invention +Reply was to put one grain of wheat on first square, 2 grains +on second square 4 on third square etc. King laughed at his small request and +replied he would be glad to do this as a reward to the inventor +of the chess board. But King could not satisfy this request. + +This exemplifies difference between an arithmetic and exponial +growth. + +I CHANGED MY MIND and term COMPACT REDUCER is better to use +below than COMPACT INVERTER. + +In particular, my next paper will use the term COMPACT REDUCER + `` COMPACT REDUCER for a base axiom system of \gamma +to describe and integer X that has the property that + \gamma can prove: + +\forall Y \exists Z such that X*Y= Z + +The basic point if that it is easy to construct +systems \gamma that can prove the identity that + +\forall X if X is a compact reducer (for \gamma) then +so is X*X a compact reducer (for \gamma). + +I developped this theorem while teaching Robert. The point +is that it leads to a simpler proof of a trivially +modified version circle-dot (where Item I is changed to require +that base axiom system A recognizes either addtion or +doubling as total functions). Either of these two changes +is good enough. when formalism A can prove a fixed finite +subset of PA's Pi_1* theorems. + +Possibly ``compact reducer'' to ``ironic reducer'' or +''ironic compactifier'' or ``compact multiplier'' +but I like ``compact reducer'' +best. + +It also has advatage of introducing generalizations called +Compact ``(J,K)'' Reducers. +and similarily ``Compact (J,K) Reduction Theorems''. +or perhaps better, it can be called a + ``Compacting (J,K) Reduction Theorem''. diff --git a/nachlass/collected_dew_materials/asl.cls b/nachlass/collected_dew_materials/asl.cls new file mode 100644 index 0000000..f1d56b6 --- /dev/null +++ b/nachlass/collected_dew_materials/asl.cls @@ -0,0 +1,6350 @@ +% asl.cls, Version 1.2, September 14, 2000 +% Yiannis N. Moschovakis, ynm@math.ucla.edu +% Copyright 2000 by the Association for Symbolic Logic +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% This file carries the usual TEX-file non-warranty for results +% and it can be freely copied and re-distributed provided that: +% +% IF IT IS CHANGED IN THE SLIGHTEST WAY, it must be RENAMED +% +% With code cribbed from the 1996/11/05 Version 1.2q of amsart.cls +% and ancillary AMSLATEX packages, in 1996 versions. +% An attempt to load one of these packages gives an error message. +% For a list of the relevant packages and versions +% search for \errmessage below or see asldoc. +% +% The ASL-specific code has been adapted to latex2e by YNM from an +% early version of AMSLATEX for the ASL prepared by the AMS +% programming staff. This version includes the code from all +% necessary stylefiles except for amsfonts, amssymb and latexsym +% +% It is assumed that all LATEX2e files exist +% in versions not earlier than 1994/12/01 +% including latexsym.sty, which is automatically loaded. +% +% The packages amsfonts.sty and amssymb.sty are loaded if they +% exist, otherwise a warning is given that ams fonts are not +% available and compilation does not stop until some amsfont +% symbol is required. +% +%%%%%%%%%%%%%%%% Changes +% bibextra.sty minor (diagnostic) bug corrected, 4/6/00 +% Version 1.1, August 20, 2000 +% Introduced option bibother which works with +% non-asl bibliography styles and hand-set bibliographies +% +% Added an optional argument to \subjclass +% which distinguishes between 1991 and 2000 classifications +% to make it friendlier to new amslatex users +% +% 9/14/2000 Corrected numbering error in eqnarray environment +%%%%%%%%%%%%%%%%% + +\NeedsTeXFormat{LaTeX2e}% LaTeX 2.09 can't be used (nor non-LaTeX) +[1994/12/01]% LaTeX date must December 1994 or later +\ProvidesClass{asl}[2000/09/14 v1.2] +\def\@tempa#1#2\@nil{\edef\@classname{#1}} +\expandafter\@tempa\@currnamestack{}{}{}\@nil +\ifx\@classname\@empty \edef\@classname{\@currname}\fi + +%%%%%%%%%%%%%%% Give error if called to load a known amslatex pkg +\def\aslknown{0} +\let\oldusepackage=\usepackage +\renewcommand{\usepackage}[2][]{% +\if\csname#2case\endcsname\aslknown\csname#2aslerr\endcsname +\else \oldusepackage[#1]{#2}\fi} + +\def\amsmathcase{0} +\def\amsmathaslerr{ +\errmessage{asl.cls already knows amsmath +version 1.2c [1996/11/01]^^J +and cannot load amsmath.^^J +Hit RETURN to continue!^^J +}} + +\def\amsgencase{0} +\def\amsgenaslerr{ +\errmessage{^^J asl.cls already knows amsgen +version 1.2b [1996/10/29]^^J +and cannot load amsgen.^^J +Hit RETURN to continue!^^J +}} + +\def\amstextcase{0} +\def\amstextaslerr{ +\errmessage{^^J asl.cls already knows amstext +version 1.2b [1996/10/28]^^J +and cannot load amstext.^^J +Hit RETURN to continue!^^J +}} + +\def\amsbsycase{0} +\def\amsbsyaslerr{ +\errmessage{^^J asl.cls already knows amsbsy +version 1.2b [1996/10/29]^^J +and cannot load amsbsy.^^J +Hit RETURN to continue!^^J +}} + +\def\amsopncase{0} +\def\amsopnaslerr{ +\errmessage{^^J asl.cls already knows amsopn +version 1.2b [1996/10/28]^^J +and cannot load amsopn.^^J +Hit RETURN to continue!^^J +}} + +%%%%%%%%%%%%%%%%%%%%%%% Options from amsart +\DeclareOption{a4paper}{\paperheight 297mm\paperwidth 210mm + \textheight 54.5pc } +\DeclareOption{letterpaper}{\paperheight 11in\paperwidth 8.5in } +\DeclareOption{landscape}{\@tempdima\paperheight + \paperheight\paperwidth \paperwidth\@tempdima} +\DeclareOption{portrait}{} +\DeclareOption{oneside}{\@twosidefalse \@mparswitchfalse} +\DeclareOption{twoside}{\@twosidetrue \@mparswitchtrue} +\DeclareOption{draft}{\overfullrule5\p@ } +\DeclareOption{final}{\overfullrule\z@ } +\def\dateposted#1{\def\@dateposted{\ (#1)}}% +\let\@dateposted\@empty +\DeclareOption{e-only}{% + \def\volinfo{Volume \currentvolume}% + \dateposted{Xxxx XX, XXXX}% +} +\newif\if@titlepage +\DeclareOption{titlepage}{\@titlepagetrue} +\DeclareOption{notitlepage}{\@titlepagefalse} +\newif\if@openright +\DeclareOption{openright}{\@openrighttrue} +\DeclareOption{openany}{\@openrightfalse} +\DeclareOption{onecolumn}{\@twocolumnfalse} +\DeclareOption{twocolumn}{\@twocolumntrue} +\DeclareOption{nomath}{} +\def\mathfrak{needed} +\DeclareOption{noamsfonts}{\let\mathfrak\relax} +\DeclareOption{psamsfonts}{% + \PassOptionsToPackage{psamsfonts}{amsfonts}% +% \PassOptionsToPackage{cmex10}{amsmath}} + \ExecuteOptions{cmex10}} % this option is declared here +% Commands preparatory to declaring pointsize options +\newcommand{\@mainsize}{10} +\newcommand{\@ptsize}{0} +\newcommand{\larger}[1][1]{% + \count@\@currsizeindex \advance\count@#1\relax + \ifnum\count@<\z@ \count@\z@ \else\ifnum\count@>12 \count@12 \fi\fi + \ifcase\count@ + \Tiny\or\Tiny\or\tiny\or\SMALL\or\Small\or\small + \or\normalsize + \or\large\or\Large\or\LARGE\or\huge\or\Huge\else\Huge + \fi +} +\newcommand{\smaller}[1][1]{\larger[-#1]} +\def\@adjustvertspacing{% + \bigskipamount.7\baselineskip plus.7\baselineskip + \medskipamount\bigskipamount \divide\medskipamount\tw@ + \smallskipamount\medskipamount \divide\smallskipamount\tw@ + \abovedisplayskip\medskipamount + \belowdisplayskip \abovedisplayskip + \abovedisplayshortskip\abovedisplayskip + \advance\abovedisplayshortskip-1\abovedisplayskip + \belowdisplayshortskip\abovedisplayshortskip + \advance\belowdisplayshortskip 1\smallskipamount + \jot\baselineskip \divide\jot 4 \relax +} +\renewcommand\normalsize{\@xsetfontsize\normalsize 6% + \@adjustvertspacing \let\@listi\@listI} +\newcommand\Tiny{\@xsetfontsize\Tiny 1} +\newcommand\tiny{\@xsetfontsize\tiny 2} +\newcommand\SMALL{\@xsetfontsize\SMALL 3} +\newcommand\Small{\@xsetfontsize\Small 4% + \@adjustvertspacing + \def\@listi{\topsep\smallskipamount \parsep\z@skip \itemsep\z@skip}} +\newcommand\small{\@xsetfontsize\small 5\@adjustvertspacing} +\def\footnotesize{\Small} +\def\scriptsize{\SMALL} +\newcommand\large{\@xsetfontsize\large 7\@adjustvertspacing} +\newcommand\Large{\@xsetfontsize\Large 8\@adjustvertspacing} +\newcommand\LARGE{\@xsetfontsize\LARGE 9} +\newcommand\huge{\@xsetfontsize\huge{10}} +\newcommand\Huge{\@xsetfontsize\Huge{11}} +\def\@xsetfontsize#1#2{% + \chardef\@currsizeindex#2\relax + \edef\@tempa{\@nx\@setfontsize\@nx#1% + \@xp\ifcase\@xp\@currsizeindex\@typesizes + \else{99}{99}\fi}% + \@tempa +} +\chardef\@currsizeindex=6 +\widowpenalty=10000 +\clubpenalty=10000 +\brokenpenalty=10000 +\newdimen\linespacing +\lineskip=1pt \lineskiplimit=1pt +\normallineskip=1pt \normallineskiplimit=1pt +\let\baselinestretch=\@empty +\headheight=5pt \headsep=14pt % redefined in asl +\footskip=12pt % redefined in asl +\textheight=50.5pc \topskip=10pt % redefined in asl +\textwidth=30pc % redefined in asl +\columnsep=10pt \columnseprule=0pt +\marginparwidth=90pt +\marginparsep=11pt +\marginparpush=5pt +\AtBeginDocument{\settoheight{\footnotesep}{\footnotesize M$^1$}} +\skip\footins=7pt plus11pt +\skip\@mpfootins=\skip\footins +\fboxsep=3pt \fboxrule=.4pt +\arrayrulewidth=.4pt \doublerulesep=2pt +\labelsep=5pt \arraycolsep=\labelsep +\tabcolsep=\labelsep \tabbingsep=\labelsep +\floatsep=15pt plus 12pt % redefined in asl +\dblfloatsep=15pt plus 12pt +\textfloatsep=\floatsep % redefined in asl +\dbltextfloatsep=15pt plus 12pt +\intextsep=\floatsep +\@fptop=0pt plus1fil \@dblfptop=0pt plus1fil +\@fpbot=0pt plus1fil \@dblfpbot=0pt plus1fil +\@fpsep=8pt plus2fil \@dblfpsep=8pt plus2fil\relax +\parskip=0pt \relax +\newdimen\normalparindent +\normalparindent=12pt % redefined in asl +\parindent=\normalparindent +\partopsep=0pt \relax \parsep=0pt \relax \itemsep=0pt \relax +\@lowpenalty=51 \@medpenalty=151 \@highpenalty=301 +\@beginparpenalty=-\@lowpenalty +\@endparpenalty=-\@lowpenalty +\@itempenalty=-\@lowpenalty +\DeclareOption{10pt}{\def\@mainsize{10}\def\@ptsize{0}% + \def\@typesizes{% + \or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}% + \or{10}{12}% normalsize + \or{\@xipt}{13}\or{\@xiipt}{14}\or{\@xivpt}{17}% + \or{\@xviipt}{20}\or{\@xxpt}{24}}% + \normalsize \linespacing=\baselineskip +} +\DeclareOption{11pt}{\def\@mainsize{11}\def\@ptsize{1}% + \def\@typesizes{% + \or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}% + \or{\@xipt}{13}% normalsize + \or{\@xiipt}{14}\or{\@xivpt}{17}\or{\@xviipt}{20}% + \or{\@xxpt}{24}\or{\@xxvpt}{30}}% + \normalsize \linespacing=\baselineskip +} +\DeclareOption{12pt}{\def\@mainsize{12}\def\@ptsize{2}% + \def\@typesizes{% + \or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}\or{\@xipt}{13}% + \or{\@xiipt}{14}% normalsize + \or{\@xivpt}{17}\or{\@xviipt}{20}\or{\@xxpt}{24}% + \or{\@xxvpt}{30}\or{\@xxvpt}{30}}% + \normalsize \linespacing=\baselineskip +} +\DeclareOption{8pt}{\def\@mainsize{8}\def\@ptsize{8}% + \def\@typesizes{% + \or{5}{6}\or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}% + \or{8}{10}% normalsize + \or{9}{11}\or{10}{12}\or{\@xipt}{13}% + \or{\@xiipt}{14}\or{\@xivpt}{17}}% + \normalsize \linespacing=\baselineskip +} +\DeclareOption{9pt}{\def\@mainsize{9}\def\@ptsize{9}% + \def\@typesizes{% + \or{5}{6}\or{5}{6}\or{6}{7}\or{7}{8}\or{8}{10}% + \or{9}{11}% normalsize + \or{10}{12}\or{\@xipt}{13}\or{\@xiipt}{14}% + \or{\@xivpt}{17}\or{\@xviipt}{20}}% + \normalsize \linespacing=\baselineskip +} +\def\ps@empty{\let\@mkboth\@gobbletwo + \let\@oddhead\@empty \let\@evenhead\@empty + \let\@oddfoot\@empty \let\@evenfoot\@empty + \global\topskip\normaltopskip} +\def\ps@plain{\ps@empty + \def\@oddfoot{\normalfont\scriptsize \hfil\thepage\hfil}% + \let\@evenfoot\@oddfoot} +\let\sectionname\@empty +\let\subsectionname\@empty +\let\subsubsectionname\@empty +\let\paragraphname\@empty +\let\subparagraphname\@empty +\def\leftmark{\expandafter\@firstoftwo\topmark{}{}} +\def\rightmark{\expandafter\@secondoftwo\botmark{}{}} +\long\def\@nilgobble#1\@nil{} +\def\markboth#1#2{% + \begingroup + \@temptokena{{#1}{#2}}\xdef\@themark{\the\@temptokena}% + \mark{\the\@temptokena}% + \endgroup + \if@nobreak\ifvmode\nobreak\fi\fi} +\def\ps@myheadings{\ps@headings \let\@mkboth\@gobbletwo} +\newskip\normaltopskip +\normaltopskip=10pt \relax +\let\sectionmark\@gobble +\let\subsectionmark\@gobble +\let\subsubsectionmark\@gobble +\let\paragraphmark\@gobble +\DeclareOption{makeidx}{} +%%%%%%%%%%%%%%%%%%%%%% End of amsart options + +%%%%%%%%%%%%%%%%%%%%%% amsgen.sty code +\providecommand{\@saveprimitive}[2]{\begingroup\escapechar`\\\relax + \edef\@tempa{\string#1}\edef\@tempb{\meaning#1}% + \ifx\@tempa\@tempb \global\let#2#1% + \else + \edef\@tempb{\meaning#2}% + \ifx\@tempa\@tempb + \else + \@latex@error{Unable to properly define \string#2; primitive + \noexpand#1no longer primitive}\@eha + \fi + \fi + \endgroup} +\let\@xp=\expandafter +\let\@nx=\noexpand +\newtoks\@emptytoks +\def\@oparg#1[#2]{\@ifnextchar[{#1}{#1[#2]}} +\long\def\@ifempty#1{\@xifempty#1@@..\@nil} +\long\def\@xifempty#1#2@#3#4#5\@nil{% + \ifx#3#4\@xp\@firstoftwo\else\@xp\@secondoftwo\fi} +\long\def\@ifnotempty#1{\@ifempty{#1}{}} +\def\FN@{\futurelet\@let@token} +\def\DN@{\def\next@} +\def\RIfM@{\relax\ifmmode} +\def\setboxz@h{\setbox\z@\hbox} +\def\wdz@{\wd\z@} +\def\boxz@{\box\z@} +\def\relaxnext@{\let\@let@token\relax} +\def\new@ifnextchar#1#2#3{% + \let\@tempe #1\def\@tempa{#2}\def\@tempb{#3}\futurelet + \@tempc\new@ifnch} +\def\new@ifnch{\ifx\@tempc \@tempe \let\@tempd\@tempa + \else\let\@tempd\@tempb\fi\@tempd} +\def\@ifstar#1#2{\new@ifnextchar *{\def\@tempa*{#1}\@tempa}{#2}} +\@ifundefined{every@math@size}{% +\let\every@math@size=\every@size +\def\glb@settings{% + \expandafter\ifx\csname S@\f@size\endcsname\relax + \calculate@math@sizes + \fi + \csname S@\f@size\endcsname + \ifmath@fonts + \begingroup + \escapechar\m@ne + \csname mv@\math@version \endcsname + \globaldefs\@ne + \let \glb@currsize \f@size + \math@fonts + \endgroup + \the\every@math@size + \else + \fi +} +\def\set@fontsize#1#2#3{% + \@defaultunits\@tempdimb#2pt\relax\@nnil + \edef\f@size{\strip@pt\@tempdimb}% + \@defaultunits\@tempskipa#3pt\relax\@nnil + \edef\f@baselineskip{\the\@tempskipa}% + \edef\f@linespread{#1}% + \let\baselinestretch\f@linespread + \def\size@update{% + \baselineskip\f@baselineskip\relax + \baselineskip\f@linespread\baselineskip + \normalbaselineskip\baselineskip + \setbox\strutbox\hbox{% + \vrule\@height.7\baselineskip + \@depth.3\baselineskip + \@width\z@}% +%%% \the\every@size + \let\size@update\relax}% + } +}{}% end \@ifundefined test +\newdimen\ex@ +\addto@hook\every@math@size{\compute@ex@} +\def\compute@ex@{% + \begingroup + \dimen@-\f@size\p@ + \ifdim\dimen@<-20\p@ + \global\ex@ 1.5\p@ + \else + \advance\dimen@10\p@ \multiply\dimen@\tw@ + \edef\@tempa{\ifdim\dimen@>\z@ -\fi}% + \dimen@ \ifdim\dimen@<\z@ -\fi \dimen@ + \advance\dimen@-\@m sp % fudge factor + \vfuzz\p@ + \def\do{\ifdim\dimen@>\z@ + \vfuzz=.97\vfuzz + \advance\dimen@ -\p@ + \@xp\do \fi}% + \do + \dimen@\p@ \advance\dimen@-\vfuzz + \global\ex@\p@ + \global\advance\ex@ \@tempa\dimen@ + \fi + \endgroup +} +\def\@addpunct#1{\ifnum\spacefactor>\@m \else#1\fi} +\def\frenchspacing{\sfcode`\.1006\sfcode`\?1005\sfcode`\!1004% + \sfcode`\:1003\sfcode`\;1002\sfcode`\,1001 } +\def\@mathmeasure#1#2#3{\setbox#1\hbox{\frozen@everymath\@emptytoks + \m@th$#2#3$}} +\def\nomath@env{\@amsmath@err{% + \string\begin{\@currenvir} allowed only in paragraph mode% +}\@ehb% "You've lost some text" +} +\def\Invalid@@{Invalid use of \string} +%%%%%%%%%%%%%%%%%%% End amsgen.sty code + +\ExecuteOptions{centertags,letterpaper,portrait,% + 10pt,twoside,onecolumn,final} + +% Do not allow compatibility mode --- enabling code deleted + +%%%%%%%%%%%%%%%%%%%%% amsmath.sty code +\DeclareOption{intlimits}{\let\ilimits@\displaylimits} +\DeclareOption{nointlimits}{\let\ilimits@\nolimits} +\DeclareOption{sumlimits}{\let\slimits@\displaylimits} +\DeclareOption{nosumlimits}{\let\slimits@\nolimits} +\newif\ifctagsplit@ +\newif\iftagsleft@ +\DeclareOption{leqno}{\tagsleft@true} +\DeclareOption{reqno}{\tagsleft@false} +% add for eqnarray in asl +\AtBeginDocument{\iftagsleft@% +\renewcommand\@eqnnum{\hb@xt@.01\p@{}% + \rlap{\normalfont\normalcolor + \hskip -\displaywidth(% +%\theequation ynm for tagging +\ifasl@tag\tagsymbol\global\asl@tagfalse\else\theequation\fi% +)}}\fi} + +\DeclareOption{centertags}{\ctagsplit@true} +\DeclareOption{tbtags}{\ctagsplit@false} +\DeclareOption{cmex10}{% + \ifnum\cmex@opt=\@ne \def\cmex@opt{0}% + \else \def\cmex@opt{10}\fi +} +\@ifundefined{cmex@opt}{\def\cmex@opt{7}}{} +% +\newif\if@fleqn +\newskip\@mathmargin +\@mathmargin\@centering +\DeclareOption{fleqn}{% + \@fleqntrue + \@mathmargin = -1sp + \AtBeginDocument{% + \ifdim\@mathmargin= -1sp + \@mathmargin\leftmargini + \fi + }% +} +\ExecuteOptions{nointlimits,sumlimits,namelimits,centertags} +\ifnum\cmex@opt=7 \relax + \catcode`\ =9 + \DeclareFontShape{OMX}{cmex}{m}{n}{% + <-8> cmex7% + <8> cmex8% + <9> cmex9% + <10> <10.95> <12> <14.4> <17.28> <20.74> <24.88>cmex10% + }{}% + \expandafter\let\csname OMX/cmex/m/n/10\endcsname\relax + \catcode`\ =10 +\else + \ifnum\cmex@opt=\z@ % need to override cmex7 fontdef from amsfonts + \input{OMXcmex.fd}% + \expandafter\let\csname OMX/cmex/m/n/10\endcsname\relax + \def\cmex@opt{10}% + \fi +\fi + +%%%%%%%%%%%%%%%%%%%%%% code from amstext.sty +\DeclareRobustCommand{\text}{% + \ifmmode\expandafter\text@\else\expandafter\mbox\fi} +\let\nfss@text\text +\def\text@#1{\mathchoice + {\textdef@\displaystyle\f@size{#1}}% + {\textdef@\textstyle\tf@size{\firstchoice@false #1}}% + {\textdef@\textstyle\sf@size{\firstchoice@false #1}}% + {\textdef@\textstyle \ssf@size{\firstchoice@false #1}}% + \check@mathfonts +} +\def\textdef@#1#2#3{\hbox{{% + \everymath{#1}% + \let\f@size#2\selectfont + #3}}} +\newif\iffirstchoice@ +\firstchoice@true +\def\stepcounter#1{% + \iffirstchoice@ + \addtocounter{#1}\@ne + \begingroup \let\@elt\@stpelt \csname cl@#1\endcsname \endgroup + \fi +} +\def\addtocounter#1#2{% + \iffirstchoice@ + \@ifundefined {c@#1}{\@nocounterr {#1}}% + {\global \advance \csname c@#1\endcsname #2\relax}% + \fi} +\newif\ifmeasuring@ +\let\m@gobble\@empty +\@xp\let\csname m@gobble4\endcsname\@gobblefour +\long\@xp\def\csname m@gobble6\endcsname#1#2#3#4#5#6{} +\toks@{% + \csname m@gobble\iffirstchoice@\ifmeasuring@ 4\fi\else 4\fi\endcsname + \protect} +\edef\GenericInfo{\the\toks@ + \@xp\@nx\csname GenericInfo \endcsname} +\edef\GenericWarning{\the\toks@ + \@xp\@nx\csname GenericWarning \endcsname} +\toks@{% + \csname m@gobble\iffirstchoice@\ifmeasuring@ 6\fi\else 6\fi\endcsname + \protect} +\edef\GenericError{\the\toks@ + \@xp\@nx\csname GenericError \endcsname} +\begingroup \catcode`\"=12 +\gdef\mathhexbox#1#2#3{\text{$\m@th\mathchar"#1#2#3$}} +\endgroup +%%%%%%%%%%%%%%%%%%%%%%% end of amstext.sty code + +%%%%%%%%%%%%%%%%%%%%%%%%%%%% code from amsbsy.sty +\DeclareRobustCommand{\boldsymbol}[1]{% + \begingroup + \let\@nomath\@gobble \mathversion{bold}% + \math@atom{#1}{% + \mathchoice% + {\hbox{$\m@th\displaystyle#1$}}% + {\hbox{$\m@th\textstyle#1$}}% + {\hbox{$\m@th\scriptstyle#1$}}% + {\hbox{$\m@th\scriptscriptstyle#1$}}}% + \endgroup} +\def\math@atom#1#2{% + \binrel@{#1}\binrel@@{#2}} +\DeclareRobustCommand{\pmb}{% + \ifmmode\else \expandafter\pmb@@\fi\mathpalette\pmb@} +\def\pmb@@#1#2#3{\leavevmode\setboxz@h{#3}% + \dimen@-\wdz@ + \kern-.5\ex@\copy\z@ + \kern\dimen@\kern.25\ex@\raise.4\ex@\copy\z@ + \kern\dimen@\kern.25\ex@\box\z@ +} +\newdimen\pmbraise@ +\def\pmb@#1#2{\setbox8\hbox{$\m@th#1{#2}$}% + \setboxz@h{$\m@th#1\mkern.5mu$}\pmbraise@\wdz@ + \binrel@{#2}% + \dimen@-\wd8 % + \binrel@@{% + \mkern-.8mu\copy8 % + \kern\dimen@\mkern.4mu\raise\pmbraise@\copy8 % + \kern\dimen@\mkern.4mu\box8 }% +} +\def\binrel@#1{\begingroup + \setboxz@h{\thinmuskip0mu + \medmuskip\m@ne mu\thickmuskip\@ne mu + \setbox\tw@\hbox{$#1\m@th$}\kern-\wd\tw@ + ${}#1{}\m@th$}% + \edef\@tempa{\endgroup\let\noexpand\binrel@@ + \ifdim\wdz@<\z@ \mathbin + \else\ifdim\wdz@>\z@ \mathrel + \else \relax\fi\fi}% + \@tempa +} +\let\binrel@@\relax +%%%%%%%%%%%%%%%%%%%%%%%% end of amsbsy.sty code + +%%%%%%%%%%%%%%%%%%%%% code from amsopn.sty +\@ifundefined{DN@}{% + \def\FN@{\futurelet\@let@token}% + \def\DN@{\def\next@}% +}{} +\def\nolimits@{% + \DN@{\nolimits\ifx\@let@token\limits\expandafter\@gobble\fi}% + \FN@\next@} +\begingroup \catcode`\"=12 +\gdef\newmcodes@{\mathcode`\'39\mathcode`\*42\mathcode`\."613A% + \mathcode`\-45\mathcode`\/47\mathcode`\:"603A\relax} +\endgroup +\DeclareRobustCommand{\operatorname}{% + \@ifstar{\qopname\newmcodes@ m}% + {\qopname\newmcodes@ o}}% +\DeclareRobustCommand{\qopname}[3]{% + \mathop{#1\kern\z@\operator@font#3}% + \csname n#2limits@\endcsname} +\newcommand{\DeclareMathOperator}{% + \@ifstar{\@declmathop\@empty}{\@declmathop o}} +\long\def\@declmathop#1#2#3{% + \@ifdefinable{#2}{% + \DeclareRobustCommand{#2}{\qopname\newmcodes@#1{#3}}}} +\@onlypreamble\DeclareMathOperator +\@onlypreamble\@declmathop +\def\arccos{\qopname\relax o{arccos}} +\def\arcsin{\qopname\relax o{arcsin}} +\def\arctan{\qopname\relax o{arctan}} +\def\arg{\qopname\relax o{arg}} +\def\cos{\qopname\relax o{cos}} +\def\cosh{\qopname\relax o{cosh}} +\def\cot{\qopname\relax o{cot}} +\def\coth{\qopname\relax o{coth}} +\def\csc{\qopname\relax o{csc}} +\def\deg{\qopname\relax o{deg}} +\def\det{\qopname\relax\@empty{det}} +\def\dim{\qopname\relax o{dim}} +\def\exp{\qopname\relax o{exp}} +\def\gcd{\qopname\relax\@empty{gcd}} +\def\hom{\qopname\relax o{hom}} +\def\inf{\qopname\relax\@empty{inf}} +\def\injlim{\qopname\relax\@empty{inj\,lim}} +\def\ker{\qopname\relax o{ker}} +\def\lg{\qopname\relax o{lg}} +\def\lim{\qopname\relax\@empty{lim}} +\def\liminf{\qopname\relax\@empty{lim\,inf}} +\def\limsup{\qopname\relax\@empty{lim\,sup}} +\def\ln{\qopname\relax o{ln}} +\def\log{\qopname\relax o{log}} +\def\max{\qopname\relax\@empty{max}} +\def\min{\qopname\relax\@empty{min}} +\def\Pr{\qopname\relax\@empty{Pr}} +\def\projlim{\qopname\relax\@empty{proj\,lim}} +\def\sec{\qopname\relax o{sec}} +\def\sin{\qopname\relax o{sin}} +\def\sinh{\qopname\relax o{sinh}} +\def\sup{\qopname\relax\@empty{sup}} +\def\tan{\qopname\relax o{tan}} +\def\tanh{\qopname\relax o{tanh}} +\def\operator@font{\mathgroup\symoperators} +\def\operatornamewithlimits{\operatorname*} +\def\varlim@#1#2{\mathop{\vtop{\ialign{##\crcr + \hfil$#1\m@th\operator@font lim$\hfil\crcr + \noalign{\nointerlineskip\kern\ex@}#2#1\crcr + \noalign{\nointerlineskip\kern-\ex@}\crcr}}}} +\def\varinjlim{\mathpalette\varlim@\rightarrowfill@} +\def\varprojlim{\mathpalette\varlim@\leftarrowfill@} +\def\varliminf{\mathpalette\varliminf@{}} +\def\varliminf@#1{\mathop{\@@underline{\vrule\@depth.2\ex@\@width\z@ + \hbox{$#1\m@th\operator@font lim$}}}} +\def\varlimsup{\mathpalette\varlimsup@{}} +\def\varlimsup@#1{\mathop{\@@overline + {\hbox{$#1\m@th\operator@font lim$}}}} +\DeclareOption{namelimits}{\let\nmlimits@\displaylimits} +\DeclareOption{nonamelimits}{\let\nmlimits@\nolimits} +%%%%%%%%%%%%%%%%%%%%%%%%%% end of code from amsopn.sty + +\def\@amsmath@err{\PackageError{amsmath}} +\def\AmS{{\protect\AmSfont + A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}} +\def\AmSfont{% + \usefont{OMS}{cmsy}{\if\@xp\@car\f@series\@nil bb\else m\fi}{n}} +\def\pr@m@s{% + \ifx\@let@token'\DN@##1{\prim@s}\else\let\next@\egroup\fi\next@} +\def\prim@s{\prime\futurelet\@let@token\pr@m@s} +\let\@prime=\prime +\renewcommand{\prime}{{\kern\z@\@prime}} +\DeclareRobustCommand{\tmspace}[3]{% + \ifmmode\mskip#1#2\else\kern#1#3\fi\relax} +\renewcommand{\,}{\tmspace+\thinmuskip{.1667em}} +\let\thinspace\, +\renewcommand{\!}{\tmspace-\thinmuskip{.1667em}} +\let\negthinspace\! +\renewcommand{\:}{\tmspace+\medmuskip{.2222em}} +\let\medspace\: +\newcommand{\negmedspace}{\tmspace-\medmuskip{.2222em}} +\renewcommand{\;}{\tmspace+\thickmuskip{.2777em}} +\let\thickspace\; +\newcommand{\negthickspace}{\tmspace-\thickmuskip{.2777em}} +\newcommand{\mspace}[1]{\mskip#1\relax} +\begingroup\catcode`\"=12 +\def\@tempa#1{\expandafter\@tempb\meaning#1% +\relax\relax\relax\relax"0000\@nil#1} +\def\@tempb#1"#2#3#4#5#6\@nil#7{% + \ifnum"#2=7 \count@"1#3#4#5\relax + \ifnum\count@<"1000 \else \global\mathchardef#7="0#3#4#5\relax \fi + \fi} +\@tempa\Gamma \@tempa\Delta \@tempa\Theta \@tempa\Lambda \@tempa\Xi +\@tempa\Pi \@tempa\Sigma \@tempa\Upsilon \@tempa\Phi \@tempa\Psi +\@tempa\Omega +\@ifundefined{varGamma}{% + \DeclareMathSymbol{\varGamma}{\mathord}{letters}{"00} + \DeclareMathSymbol{\varDelta}{\mathord}{letters}{"01} + \DeclareMathSymbol{\varTheta}{\mathord}{letters}{"02} + \DeclareMathSymbol{\varLambda}{\mathord}{letters}{"03} + \DeclareMathSymbol{\varXi}{\mathord}{letters}{"04} + \DeclareMathSymbol{\varPi}{\mathord}{letters}{"05} + \DeclareMathSymbol{\varSigma}{\mathord}{letters}{"06} + \DeclareMathSymbol{\varUpsilon}{\mathord}{letters}{"07} + \DeclareMathSymbol{\varPhi}{\mathord}{letters}{"08} + \DeclareMathSymbol{\varPsi}{\mathord}{letters}{"09} + \DeclareMathSymbol{\varOmega}{\mathord}{letters}{"0A} +}{} +\endgroup +\begingroup \catcode`\"=12 +\gdef\@@sqrt#1{\radical"270370 {#1}} +\endgroup +\@saveprimitive\overline\@@overline +\def\overline#1{\@@overline{#1}} +\def\boxed#1{\fbox{\m@th$\displaystyle#1$}} +\def\implies{\DOTSB\;\Longrightarrow\;} +\def\impliedby{\DOTSB\;\Longleftarrow\;} +\begingroup \catcode`\"=12 % in case activated by a preceding package +\gdef\And{\DOTSB\;\mathchar"3026 \;} +\@tempcnta=\@xp\@gobble\vert \advance\@tempcnta "4000000 +\xdef\lvert{\delimiter\number\@tempcnta\space } +\advance\@tempcnta "1000000 +\xdef\rvert{\delimiter\number\@tempcnta\space } +\@tempcnta=\@xp\@gobble\Vert \advance\@tempcnta "4000000 +\xdef\lVert{\delimiter\number\@tempcnta\space } +\advance\@tempcnta "1000000 +\xdef\rVert{\delimiter\number\@tempcnta\space } +\endgroup % restore " +\@saveprimitive\over\@@over +\@saveprimitive\atop\@@atop +\@saveprimitive\above\@@above +\@saveprimitive\overwithdelims\@@overwithdelims +\@saveprimitive\atopwithdelims\@@atopwithdelims +\@saveprimitive\abovewithdelims\@@abovewithdelims +\DeclareRobustCommand{\primfrac}[1]{% + \PackageWarning{amsmath}{% +Foreign command \@backslashchar#1; % +\protect\frac\space or \protect\genfrac\space should be used instead% + } + \global\@xp\let\csname#1\@xp\endcsname\csname @@#1\endcsname + \csname#1\endcsname +} +\renewcommand{\over}{\primfrac{over}} +\renewcommand{\atop}{\primfrac{atop}} +\renewcommand{\above}{\primfrac{above}} +\renewcommand{\overwithdelims}{\primfrac{overwithdelims}} +\renewcommand{\atopwithdelims}{\primfrac{atopwithdelims}} +\renewcommand{\abovewithdelims}{\primfrac{abovewithdelims}} +\DeclareRobustCommand{\frac}[2]{{\begingroup#1\endgroup\@@over#2}} +\newcommand{\dfrac}{\genfrac{}{}{}0} +\newcommand{\tfrac}{\genfrac{}{}{}1} +\DeclareRobustCommand{\binom}{\genfrac()\z@{}} +\newcommand{\dbinom}{\genfrac(){0pt}0} +\newcommand{\tbinom}{\genfrac(){0pt}1} +\DeclareRobustCommand{\genfrac}[4]{% + \def\@tempa{#1#2}% + \edef\@tempb{\@nx\@genfrac\@mathstyle{#4}% + \csname @@\ifx @#3@over\else above\fi + \ifx\@tempa\@empty \else withdelims\fi\endcsname} + \@tempb{#1#2#3}} +\def\@genfrac#1#2#3#4#5{{#1{\begingroup#4\endgroup#2#3\relax#5}}} +\def\@mathstyle#1{% + \ifx\@empty#1\@empty\relax + \else\ifcase#1\displaystyle % case 0 + \or\textstyle\or\scriptstyle\else\scriptscriptstyle\fi\fi} +\def\colon{\nobreak\mskip2mu\mathpunct{}\nonscript + \mkern-\thinmuskip{:}\mskip6muplus1mu\relax} +\begingroup \catcode`\"=12 +\edef\@tempa{\string\mathchar"} +\def\@tempb#1"#2\@nil{#1"} +\edef\@tempc{\expandafter\@tempb\meaning\coprod "\@nil} +\ifx\@tempa\@tempc + \global\let\coprod@\coprod + \gdef\coprod{\DOTSB\coprod@\slimits@} + \global\let\bigvee@\bigvee + \gdef\bigvee{\DOTSB\bigvee@\slimits@} + \global\let\bigwedge@\bigwedge + \gdef\bigwedge{\DOTSB\bigwedge@\slimits@} + \global\let\biguplus@\biguplus + \gdef\biguplus{\DOTSB\biguplus@\slimits@} + \global\let\bigcap@\bigcap + \gdef\bigcap{\DOTSB\bigcap@\slimits@} + \global\let\bigcup@\bigcup + \gdef\bigcup{\DOTSB\bigcup@\slimits@} + \global\let\prod@\prod + \gdef\prod{\DOTSB\prod@\slimits@} + \global\let\sum@\sum + \gdef\sum{\DOTSB\sum@\slimits@} + \global\let\bigotimes@\bigotimes + \gdef\bigotimes{\DOTSB\bigotimes@\slimits@} + \global\let\bigoplus@\bigoplus + \gdef\bigoplus{\DOTSB\bigoplus@\slimits@} + \global\let\bigodot@\bigodot + \gdef\bigodot{\DOTSB\bigodot@\slimits@} + \global\let\bigsqcup@\bigsqcup + \gdef\bigsqcup{\DOTSB\bigsqcup@\slimits@} +\fi +\endgroup +\newcommand{\nobreakdash}{\leavevmode + \toks@\@emptytoks \def\@tempa##1{\toks@\@xp{\the\toks@-}\FN@\next@}% + \DN@{\ifx\@let@token-\@xp\@tempa + \else\setboxz@h{\the\toks@\nobreak}\unhbox\z@\fi}% + \FN@\next@ +} +\def\leftroot{\@amsmath@err{\Invalid@@\leftroot}\@eha} +\def\uproot{\@amsmath@err{\Invalid@@\uproot}\@eha} +\newcount\uproot@ +\newcount\leftroot@ +\def\root{\relaxnext@ + \DN@{\ifx\@let@token\uproot\let\next@\nextii@\else + \ifx\@let@token\leftroot\let\next@\nextiii@\else + \let\next@\plainroot@\fi\fi\next@}% + \def\nextii@\uproot##1{\uproot@##1\relax\FN@\nextiv@}% + \def\nextiv@{\ifx\@let@token\@sptoken\DN@. {\FN@\nextv@}\else + \DN@.{\FN@\nextv@}\fi\next@.}% + \def\nextv@{\ifx\@let@token\leftroot\let\next@\nextvi@\else + \let\next@\plainroot@\fi\next@}% + \def\nextvi@\leftroot##1{\leftroot@##1\relax\plainroot@}% + \def\nextiii@\leftroot##1{\leftroot@##1\relax\FN@\nextvii@}% + \def\nextvii@{\ifx\@let@token\@sptoken + \DN@. {\FN@\nextviii@}\else + \DN@.{\FN@\nextviii@}\fi\next@.}% + \def\nextviii@{\ifx\@let@token\uproot\let\next@\nextix@\else + \let\next@\plainroot@\fi\next@}% + \def\nextix@\uproot##1{\uproot@##1\relax\plainroot@}% + \bgroup\uproot@\z@\leftroot@\z@\FN@\next@} +\def\plainroot@#1\of#2{\setbox\rootbox\hbox{% + $\m@th\scriptscriptstyle{#1}$}% + \mathchoice{\r@@t\displaystyle{#2}}{\r@@t\textstyle{#2}} + {\r@@t\scriptstyle{#2}}{\r@@t\scriptscriptstyle{#2}}\egroup} +\def\r@@t#1#2{\setboxz@h{$\m@th#1\@@sqrt{#2}$}% + \dimen@\ht\z@\advance\dimen@-\dp\z@ + \setbox\@ne\hbox{$\m@th#1\mskip\uproot@ mu$}% + \advance\dimen@ by1.667\wd\@ne + \mkern-\leftroot@ mu\mkern5mu\raise.6\dimen@\copy\rootbox + \mkern-10mu\mkern\leftroot@ mu\boxz@} +\let\ifgtest@\iffalse % initial value +\def\gtest@true{\global\let\ifgtest@\iftrue} +\def\gtest@false{\global\let\ifgtest@\iffalse} +\let\DOTSI\relax +\let\DOTSB\relax +\let\DOTSX\relax +{\uccode`7=`\\ \uccode`8=`m \uccode`9=`a \uccode`0=`t \uccode`!=`h + \uppercase{% + \gdef\math@#1#2#3#4#5#6\math@{\gtest@false\ifx 7#1\ifx 8#2% + \ifx 9#3\ifx 0#4\ifx !#5\xdef\meaning@{#6}\gtest@true + \fi\fi\fi\fi\fi}}} +{\uccode`7=`c \uccode`8=`h \uccode`9=`\" + \uppercase{\gdef\mathch@#1#2#3#4#5#6\mathch@{\gtest@false + \ifx 7#1\ifx 8#2\ifx 9#5\gtest@true\xdef\meaning@{9#6}\fi\fi\fi}}} +\newcount\classnum@ +\def\getmathch@#1.#2\getmathch@{\classnum@#1 \divide\classnum@4096 + \ifcase\number\classnum@\or\or\gdef\thedots@{\dotsb@}\or + \gdef\thedots@{\dotsb@}\fi} +{\uccode`4=`b \uccode`5=`i \uccode`6=`n + \uppercase{\gdef\mathbin@#1#2#3{\relaxnext@ + \def\nextii@##1\mathbin@{\ifx\@sptoken\@let@token\gtest@true\fi}% + \gtest@false\DN@##1\mathbin@{}% + \ifx 4#1\ifx 5#2\ifx 6#3\DN@{\FN@\nextii@}\fi\fi\fi\next@}}} +{\uccode`4=`r \uccode`5=`e \uccode`6=`l + \uppercase{\gdef\mathrel@#1#2#3{\relaxnext@ + \def\nextii@##1\mathrel@{\ifx\@sptoken\@let@token\gtest@true\fi}% + \gtest@false\DN@##1\mathrel@{}% + \ifx 4#1\ifx 5#2\ifx 6#3\DN@{\FN@\nextii@}\fi\fi\fi\next@}}} +{\uccode`5=`m \uccode`6=`a \uccode`7=`c + \uppercase{\gdef\macro@#1#2#3#4\macro@{\gtest@false + \ifx 5#1\ifx 6#2\ifx 7#3\gtest@true + \xdef\meaning@{\macro@@#4\macro@@}\fi\fi\fi}}} +\def\macro@@#1->#2\macro@@{#2} +\newcount\DOTSCASE@ +{\uccode`6=`\\ \uccode`7=`D \uccode`8=`O \uccode`9=`T \uccode`0=`S + \uppercase{\gdef\DOTS@#1#2#3#4#5{\gtest@false\DN@##1\DOTS@{}% + \ifx 6#1\ifx 7#2\ifx 8#3\ifx 9#4\ifx 0#5\let\next@\DOTS@@ + \fi\fi\fi\fi\fi + \next@}}} +{\uccode`3=`B \uccode`4=`I \uccode`5=`X + \uppercase{\gdef\DOTS@@#1{\relaxnext@ + \def\nextii@##1\DOTS@{\ifx\@sptoken\@let@token\gtest@true\fi}% + \DN@{\FN@\nextii@}% + \ifx 3#1\global\DOTSCASE@\z@\else + \ifx 4#1\global\DOTSCASE@\@ne\else + \ifx 5#1\global\DOTSCASE@\tw@\else\DN@##1\DOTS@{}% + \fi\fi\fi\next@}}} +{\uccode`5=`\\ \uccode`6=`n \uccode`7=`o \uccode`8=`t + \uppercase{\gdef\not@#1#2#3#4{\relaxnext@ + \def\nextii@##1\not@{\ifx\@sptoken\@let@token\gtest@true\fi}% + \gtest@false\DN@##1\not@{}% + \ifx 5#1\ifx 6#2\ifx 7#3\ifx 8#4\DN@{\FN@\nextii@}\fi\fi\fi + \fi\next@}}} +\def\keybin@{\gtest@true + \ifx\@let@token+\else\ifx\@let@token=\else + \ifx\@let@token<\else\ifx\@let@token>\else + \ifx\@let@token-\else\ifx\@let@token*\else\ifx\@let@token:\else + \gtest@false\fi\fi\fi\fi\fi\fi\fi} +\@ifundefined{@ldots}{\def\@ldots{\mathellipsis}}{} +\DeclareRobustCommand{\dots}{\relax + \csname\ifmmode m\else t\fi dots@\endcsname} +\def\tdots@{\leavevmode\unskip\relaxnext@ + \DN@{$\m@th\@ldots\, + \ifx\@let@token,\,$\else\ifx\@let@token.\,$\else + \ifx\@let@token;\,$\else\ifx\@let@token:\,$\else + \ifx\@let@token?\,$\else\ifx\@let@token!\,$\else + $ \fi\fi\fi\fi\fi\fi}% + \ \FN@\next@} +\def\mdots@{\FN@\mdots@@} +\def\mdots@@{\gdef\thedots@{\dotso@}% + \ifx\@let@token\boldsymbol \gdef\thedots@\boldsymbol{\boldsymboldots@}% + \else\ifx,\@let@token \gdef\thedots@{\dotsc}% + \else\ifx\not\@let@token \gdef\thedots@{\dotsb@}% + \else\keybin@ + \ifgtest@\gdef\thedots@{\dotsb@}% + \else\xdef\meaning@{\meaning\@let@token..........}% + \xdef\meaning@@{\meaning@}% + \@xp\math@\meaning@\math@ + \ifgtest@ + \@xp\mathch@\meaning@\mathch@ + \ifgtest@\@xp\getmathch@\meaning@\getmathch@\fi + \else\@xp\macro@\meaning@@\macro@ + \ifgtest@ + \@xp\not@\meaning@\not@\ifgtest@\gdef\thedots@{\dotsb@}% + \else\@xp\DOTS@\meaning@\DOTS@ + \ifgtest@ + \ifcase\number\DOTSCASE@\gdef\thedots@{\dotsb@}% + \or\gdef\thedots@{\dotsi}\else\fi + \else\@xp\math@\meaning@\math@ + \ifgtest@\@xp\mathbin@\meaning@\mathbin@ + \ifgtest@\gdef\thedots@{\dotsb@}% + \else\@xp\mathrel@\meaning@\mathrel@ + \ifgtest@\gdef\thedots@{\dotsb@}% + \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi + \thedots@} +\def\boldsymboldots@#1{\bold@true\let\@let@token=#1\let\delayed@=#1\mdots@@ + \boldsymbol#1\bold@false} +\def\@cdots{\mathinner{\cdotp\cdotp\cdotp}} +\def\dotsi{\!\@cdots} +\let\dotsb@\@cdots +\def\rightdelim@{\gtest@true + \ifx\@let@token)\else + \ifx\@let@token]\else + \ifx\@let@token\rbrack\else + \ifx\@let@token\}\else + \ifx\@let@token\rbrace\else + \ifx\@let@token\rangle\else + \ifx\@let@token\rceil\else + \ifx\@let@token\rfloor\else + \ifx\@let@token\rgroup\else + \ifx\@let@token\rmoustache\else + \ifx\@let@token\right\else + \ifx\@let@token\bigr\else + \ifx\@let@token\biggr\else + \ifx\@let@token\Bigr\else + \ifx\@let@token\Biggr\else\gtest@false + \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi} +\def\extra@{% + \rightdelim@\ifgtest@ + \else\ifx\@let@token$\gtest@true + \else\xdef\meaning@{\meaning\@let@token..........}% + \@xp\macro@\meaning@\macro@\ifgtest@ + \@xp\DOTS@\meaning@\DOTS@ + \ifgtest@ + \ifnum\DOTSCASE@=\tw@\gtest@true\else\gtest@false + \fi\fi\fi\fi\fi} +\newif\ifbold@ +\def\dotso@{\relaxnext@ + \ifbold@ + \let\@let@token\delayed@ + \def\nextii@{\extra@\@ldots\ifgtest@\,\fi}% + \else + \def\nextii@{\DN@{\extra@\@ldots\ifgtest@\,\fi}\FN@\next@}% + \fi + \nextii@} +\def\extrap@#1{% + \DN@{#1\,}% + \ifx\@let@token,\else + \ifx\@let@token;\else + \ifx\@let@token.\else\extra@ + \ifgtest@\else + \let\next@#1\fi\fi\fi\fi\next@} +\DeclareRobustCommand{\ldots}{\relax + \ifmmode \DN@{\extrap@\@ldots}% + \else \let\next@\tdots@\fi + \FN@\next@} +\DeclareRobustCommand{\cdots}{\DN@{\extrap@\@cdots}\FN@\next@} +\let\dotso\ldots +\let\dotsb\cdots +\let\dotsm\dotsb +\DeclareRobustCommand{\dotsc}{% + \DN@{\ifx\@let@token;\@ldots\,% + \else \ifx\@let@token.\@ldots\,% + \else \extra@\@ldots \ifgtest@\,\fi + \fi\fi}% + \FN@\next@} +\def\longrightarrow{\DOTSB\relbar\joinrel\rightarrow} +\def\Longrightarrow{\DOTSB\Relbar\joinrel\Rightarrow} +\def\longleftarrow{\DOTSB\leftarrow\joinrel\relbar} +\def\Longleftarrow{\DOTSB\Leftarrow\joinrel\Relbar} +\def\longleftrightarrow{\DOTSB\leftarrow\joinrel\rightarrow} +\def\Longleftrightarrow{\DOTSB\Leftarrow\joinrel\Rightarrow} +\def\mapsto{\DOTSB\mapstochar\rightarrow} +\def\longmapsto{\DOTSB\mapstochar\longrightarrow} +\def\hookrightarrow{\DOTSB\lhook\joinrel\rightarrow} +\def\hookleftarrow{\DOTSB\leftarrow\joinrel\rhook} +\def\iff{\DOTSB\;\Longleftrightarrow\;} +\def\doteq{\DOTSB\mathrel{\mathop{\kern\z@ =}\limits^{\textstyle.}}} +\newif\if@display +\everydisplay\@xp{\the\everydisplay \@displaytrue} +\def\int{\DOTSI\intop\ilimits@} +\def\oint{\DOTSI\ointop\ilimits@} +\def\intkern@{\mkern-6mu\mathchoice{\mkern-3mu}{}{}{}} +\def\intdots@{\mathchoice{\@cdots}% + {{\cdotp}\mkern1.5mu{\cdotp}\mkern1.5mu{\cdotp}}% + {{\cdotp}\mkern1mu{\cdotp}\mkern1mu{\cdotp}}% + {{\cdotp}\mkern1mu{\cdotp}\mkern1mu{\cdotp}}} +\def\iint{\DOTSI\protect\ints@\tw@} +\def\iiint{\DOTSI\protect\ints@\thr@@} +\def\iiiint{\DOTSI\protect\ints@{4}} +\def\idotsint{\DOTSI\protect\ints@\z@} +\def\ints@#1{% + \mkern-7mu\mathchoice{\mkern-2mu}{}{}{}% + \mathop{\mkern7mu\mathchoice{\mkern2mu}{}{}{}% + \intop\ifnum#1=\z@\intdots@ + \else\intkern@\fi + \ifnum#1>\tw@\intop\intkern@\fi + \ifnum#1>\thr@@\intop\intkern@\fi + \intop + }\ilimits@ +} +\newbox\Mathstrutbox@ +\setbox\Mathstrutbox@=\hbox{} +\def\Mathstrut@{\copy\Mathstrutbox@} +\begingroup \catcode`\"=12 +\gdef\resetMathstrut@{% + \setbox\z@\hbox{% + \mathchardef\@tempa\mathcode`\(\relax + \def\@tempb##1"##2##3{\the\textfont"##3\char"}% + \expandafter\@tempb\meaning\@tempa \relax + }% + \ht\Mathstrutbox@\ht\z@ \dp\Mathstrutbox@\dp\z@ +} +\endgroup +\addto@hook\every@math@size{\resetMathstrut@} +\newbox\strutbox@ +\def\strut@{\copy\strutbox@} +\addto@hook\every@math@size{% + \global\setbox\strutbox@\hbox{\lower.5\normallineskiplimit + \vbox{\kern-\normallineskiplimit\copy\strutbox}}} +\def\big{\bBigg@\@ne} +\def\Big{\bBigg@{1.5}} +\def\bigg{\bBigg@\tw@} +\def\Bigg{\bBigg@{2.5}} +\def\bBigg@#1#2{% + {\@mathmeasure\z@{\nulldelimiterspace\z@}% + {\left#2\vcenter to#1\big@size{}\right.}% + \box\z@}} +\addto@hook\every@math@size{% + \global\big@size 1.2\ht\Mathstrutbox@ + \global\advance\big@size 1.2\dp\Mathstrutbox@ } +\newdimen\big@size +\def\accentclass@{7} +\def\noaccents@{\def\accentclass@{0}} +\DeclareFontEncoding{OML}{}{\noaccents@} +\DeclareFontEncoding{OMS}{}{\noaccents@} +\begingroup \catcode`\"=12 +\def\@tempa#1#2\@nil{\def\@tempc{#1}}\def\@tempb{\mathaccent} +\expandafter\@tempa\hat \relax\relax\@nil +\ifx\@tempb\@tempc + \def\@tempa#1\@nil{#1}% + \def\@tempb#1{\afterassignment\@tempa\mathchardef\@tempc=}% + \def\@tempe#1"{} + \def\do#1"#2{} + \def\@tempd#1#2{\expandafter\@tempb#1\@nil + \ifnum\@tempc<"1000 + \edef\@tempc{"\@nx\accentclass@ + \ifnum\@tempc<"100 0\fi + \@xp\@tempe\meaning\@tempc\space}% + \else + \edef\@tempc{"\@nx\@nx\@nx\accentclass@ + \@xp\do\meaning\@tempc\space}% + \fi + \xdef#1{\mathaccent\@tempc}% + \toks@{% + \relax\ifmmode \else\DN@##1##2{\nonmatherr@{#2}}\@xp\next@\fi + \mathaccent@}% + \xdef#2{\the\toks@{\@tempc}}% + } + \@tempd\hat\Hat \@tempd\check\Check \@tempd\tilde\Tilde + \@tempd\acute\Acute \@tempd\grave\Grave \@tempd\dot\Dot + \@tempd\ddot\Ddot \@tempd\breve\Breve \@tempd\bar\Bar +\fi +\endgroup +\newcount\skewcharcount@ +\newcount\familycount@ +\def\theskewchar@{\familycount@\@ne + \global\skewcharcount@\the\skewchar\textfont\@ne + \ifnum\mathgroup>\m@ne\ifnum\mathgroup<16 + \global\familycount@\the\mathgroup\relax + \global\skewcharcount@\the\skewchar\textfont\the\mathgroup\relax\fi\fi + \ifnum\skewcharcount@>\m@ne + \ifnum\skewcharcount@<128 + \multiply\familycount@256 + \global\advance\skewcharcount@\familycount@ + \global\advance\skewcharcount@28672 + \mathchar\skewcharcount@\else + \global\skewcharcount@\m@ne\fi\else + \global\skewcharcount@\m@ne\fi} +\newcount\pointcount@ +\def\getpoints@#1.#2\getpoints@{\pointcount@#1 } +\newdimen\accentdimen@ +\newcount\accentmu@ +\def\dimentomu@{\multiply\accentdimen@ 100 + \@xp\getpoints@\the\accentdimen@\getpoints@ + \multiply\pointcount@18 + \divide\pointcount@\@m + \global\accentmu@\pointcount@} +\def\mathaccent@#1#2{\ifnum\mathgroup=\m@ne\xdef\thefam@{1}\else + \xdef\thefam@{\the\mathgroup}\fi + \accentdimen@\z@ + \setboxz@h{\unbracefonts@$\m@th\mathgroup\thefam@\relax#2$}% + \ifdim\accentdimen@=\z@\DN@{\mathaccent#1{#2}}% + \setbox\@ne\hbox{\unbracefonts@ + $\m@th\mathgroup\thefam@\relax#2\theskewchar@$} + \setbox\tw@\hbox{$\m@th\ifnum\skewcharcount@=\m@ne\else + \mathchar\skewcharcount@\fi$}% + \global\accentdimen@\wd\@ne\global\advance\accentdimen@-\wdz@ + \global\advance\accentdimen@-\wd\tw@ + \global\multiply\accentdimen@\tw@ + \dimentomu@\global\advance\accentmu@\@ne + \else\DN@{{\mathaccent#1{#2\mkern\accentmu@ mu}% + \mkern-\accentmu@ mu}{}}\fi + \next@} +\def\unbracefonts@{\let\math@bgroup\@empty\let\math@egroup\@empty} +\def\nonmatherr@#1{\@amsmath@err{\protect + #1 allowed only in math mode}\@ehd} +\begingroup \catcode`\"=12 +\def\@tempa#1#2{\gdef#1{\RIfM@\DN@{\mathaccent@{"\accentclass@#2 }}% + \else\DN@{\nonmatherr@{#1}}\fi\next@}} +\@tempa\Hat{05E}\@tempa\Check{014}\@tempa\Tilde{07E}\@tempa\Acute{013} +\@tempa\Grave{012}\@tempa\Dot{05F}\@tempa\Ddot{07F}\@tempa\Breve{015} +\@tempa\Bar{016} +\gdef\Vec{\RIfM@\DN@{\mathaccent@{"017E }}\else + \DN@{\nonmatherr@\Vec}\fi\next@} +\endgroup +\def\dddot#1{{\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@ + \hbox{\normalfont ...}\vss}}}} +\def\ddddot#1{{\mathop{#1}\limits^{\vbox to-1.4\ex@{\kern-\tw@\ex@ + \hbox{\normalfont....}\vss}}}} +\def\bmod{\mskip-\medmuskip\mkern5mu\mathbin + {\operator@font mod}\penalty900 + \mkern5mu\mskip-\medmuskip} +\def\pod#1{\allowbreak\if@display\mkern18mu\else\mkern8mu\fi(#1)} +\def\pmod#1{\pod{{\operator@font mod}\mkern6mu#1}} +\def\mod#1{\allowbreak\if@display\mkern18mu + \else\mkern12mu\fi{\operator@font mod}\,\,#1} +\newcommand{\cfrac}[3][c]{{\displaystyle\frac{% + \strut\ifx r#1\hfill\fi#2\ifx l#1\hfill\fi}{#3}}% + \kern-\nulldelimiterspace} +\def\overset#1#2{\binrel@{#2}% + \binrel@@{\mathop{\kern\z@#2}\limits^{#1}}} +\def\underset#1#2{\binrel@{#2}% + \binrel@@{\mathop{\kern\z@#2}\limits_{#1}}} +\def\sideset#1#2#3{% + \@mathmeasure\z@\displaystyle{#3}% + \global\setbox\@ne\vbox to\ht\z@{}\dp\@ne\dp\z@ + \setbox\tw@\box\@ne + \@mathmeasure4\displaystyle{\copy\tw@#1}% + \@mathmeasure6\displaystyle{#3\nolimits#2}% + \dimen@-\wd6 \advance\dimen@\wd4 \advance\dimen@\wd\z@ + \hbox to\dimen@{}\mathop{\kern-\dimen@\box4\box6}% +} +\renewcommand{\smash}[2][tb]{% + \def\smash@{#1}% + \ifmmode\@xp\mathpalette\@xp\mathsm@sh\else + \@xp\makesm@sh\fi{#2}} +\def\finsm@sh{\def\mb@t{\ht\z@\z@}\def\mb@b{\dp\z@\z@}% + \def\mb@tb{\mb@t\mb@b}% + {\csname mb@\smash@\endcsname}% + \leavevmode\boxz@} +\def\rightarrowfill@#1{\m@th\setboxz@h{$#1\relbar$}\ht\z@\z@ + $#1\copy\z@\mkern-6mu\cleaders + \hbox{$#1\mkern-2mu\box\z@\mkern-2mu$}\hfill + \mkern-6mu\mathord\rightarrow$} +\def\leftarrowfill@#1{\m@th\setboxz@h{$#1\relbar$}\ht\z@\z@ + $#1\mathord\leftarrow\mkern-6mu\cleaders + \hbox{$#1\mkern-2mu\copy\z@\mkern-2mu$}\hfill + \mkern-6mu\box\z@$} +\def\leftrightarrowfill@#1{\m@th\setboxz@h{$#1\relbar$}\ht\z@\z@ + $#1\mathord\leftarrow\mkern-6mu\cleaders + \hbox{$#1\mkern-2mu\box\z@\mkern-2mu$}\hfill + \mkern-6mu\mathord\rightarrow$} +\def\overarrow@#1#2#3{\vbox{\ialign{##\crcr#1#2\crcr + \noalign{\kern-\ex@\nointerlineskip}$\m@th\hfil#2#3\hfil$\crcr}}} +\def\overrightarrow{\mathpalette{\overarrow@\rightarrowfill@}} +\def\overleftarrow{\mathpalette{\overarrow@\leftarrowfill@}} +\def\overleftrightarrow{\mathpalette{\overarrow@\leftrightarrowfill@}} +\def\underarrow@#1#2#3{% + \vtop{\ialign{##\crcr$\m@th\hfil#2#3\hfil$\crcr + \noalign{\nointerlineskip\kern-.5\ex@}#1#2\crcr}}} +\def\underrightarrow{\mathpalette{\underarrow@\rightarrowfill@}} +\def\underleftarrow{\mathpalette{\underarrow@\leftarrowfill@}} +\def\underleftrightarrow{\mathpalette{\underarrow@\leftrightarrowfill@}} +\newcommand{\xrightarrow}[2][]{% + \mathrel{\mathop{% + \setbox\z@\vbox{\m@th + \hbox{$\scriptstyle\;{#1}\;\;$}% + \hbox{$\m@th\scriptstyle\;{#2}\;\;$}% + }% + \hbox to\ifdim\wd\z@>\minaw@\wd\z@\else\minaw@\fi{% + \rightarrowfill@\displaystyle}}% + \limits^{#2}\@ifnotempty{#1}{_{#1}}}% +} +\newcommand{\xleftarrow}[2][]{% + \mathrel{\mathop{% + \setbox\z@\vbox{\m@th + \hbox{$\scriptstyle\;\;{#1}\;$}% + \hbox{$\m@th\scriptstyle\;\;{#2}\;\;$}% + }% + \hbox to\ifdim\wd\z@>\minaw@\wd\z@\else\minaw@\fi{% + \leftarrowfill@\displaystyle}}% + \limits^{#2}\@ifnotempty{#1}{_{#1}}}% +} +\@ifundefined{minaw@}{\newdimen\minaw@\minaw@11pt}{} +\newcommand{\Sb}{\PackageError{amsmath}% + {Environment `Sb' is obsolete; use `substack' instead}% + {The \protect\\protect\ used to separate lines in a `Sb' environment can + cause problems if `Sb' is embedded in some aligning environments.}} +\newcommand{\Sp}{\PackageError{amsmath}% + {Environment `Sp' is obsolete; use `substack' instead}% + {The \protect\\protect\ used to separate lines in a `Sp' environment can + cause problems if `Sp' is embedded in some aligning environments.}} +\newenvironment{subarray}[1]{% + \vcenter\bgroup + \Let@ \restore@math@cr \default@tag + \baselineskip\fontdimen10 \scriptfont\tw@ + \advance\baselineskip\fontdimen12 \scriptfont\tw@ + \lineskip\thr@@\fontdimen8 \scriptfont\thr@@ + \lineskiplimit\lineskip + \ialign\bgroup\ifx c#1\hfil\fi + $\m@th\scriptstyle##$\hfil\crcr +}{% + \crcr\egroup\egroup +} +\newcommand{\substack}[1]{\subarray{c}#1\endsubarray} +\newenvironment{smallmatrix}{\null\,\vcenter\bgroup + \Let@\restore@math@cr\default@tag + \baselineskip6\ex@ \lineskip1.5\ex@ \lineskiplimit\lineskip + \ialign\bgroup\hfil$\m@th\scriptstyle##$\hfil&&\thickspace\hfil + $\m@th\scriptstyle##$\hfil\crcr +}{% + \crcr\egroup\egroup\,% +} +\newcount\c@MaxMatrixCols \c@MaxMatrixCols=10 +\renewenvironment{matrix}{% + \hskip -\arraycolsep\array{*\c@MaxMatrixCols c}% +}{% + \endarray \hskip -\arraycolsep +} +\renewenvironment{pmatrix}{\left(\matrix}{\endmatrix\right)} +\newenvironment{bmatrix}{\left[\matrix}{\endmatrix\right]} +\newenvironment{Bmatrix}{\left\lbrace\matrix}{\endmatrix\right\rbrace} +\newenvironment{vmatrix}{\left\lvert\matrix}{\endmatrix\right\rvert} +\newenvironment{Vmatrix}{\left\lVert\matrix}{\endmatrix\right\rVert} +\let\hdots\@ldots +\newcommand{\hdotsfor}[1]{% + \ifx[#1\@xp\shdots@for\else\hdots@for\@ne{#1}\fi} +\newmuskip\dotsspace@ +\def\shdots@for#1]{\hdots@for{#1}} +\def\hdots@for#1#2{\multicolumn{#2}c% + {\m@th\dotsspace@1.5mu\mkern-#1\dotsspace@ + \xleaders\hbox{$\m@th\mkern#1\dotsspace@.\mkern#1\dotsspace@$}% + \hfill + \mkern-#1\dotsspace@}% + } +\renewenvironment{cases}{% + \left\{\def\arraystretch{1.2}% + \array{@{}l@{\quad}l@{}}% +}{% + \endarray\right.% +} +\newcounter{parentequation}% Counter for ``parent equation''. +\newenvironment{subequations}{% + \refstepcounter{equation}% + \begingroup % conservative approach + \let\protect\@nx + \edef\@tempa{\def\@nx\theparentequation{\theequation}}% + \@xp\endgroup\@tempa + \setcounter{parentequation}{\value{equation}}% + \setcounter{equation}{0}% + \def\theequation{\theparentequation\alph{equation}}% + \ignorespaces +}{% + \setcounter{equation}{\value{parentequation}}% + \global\@ignoretrue +} +\def\numberwithin#1#2{\@ifundefined{c@#1}{\@nocounterr{#1}}{% + \@ifundefined{c@#2}{\@nocnterr{#2}}{% + \@addtoreset{#1}{#2}% + \toks@\@xp\@xp\@xp{\csname the#1\endcsname}% + \@xp\xdef\csname the#1\endcsname + {\@xp\@nx\csname the#2\endcsname + .\the\toks@}}}} +\def\eqref#1{\textup{\tagform@{\ref{#1}}}} +\newcount\dspbrk@lvl +\dspbrk@lvl=-1 +\interdisplaylinepenalty\@M +\def\allowdisplaybreaks{% + \new@ifnextchar[\allowdspbrks@{\allowdspbrks@[4]}} +\def\allowdspbrks@[#1]{% + \interdisplaylinepenalty\getdsp@pen{#1}} +\def\getdsp@pen#1{% + \ifcase #1\relax \@M + \or 9999 + \or 6999 + \or 2999 + \or \z@\fi} +\def\displaybreak{\@amsmath@err{\Invalid@@\displaybreak}\@eha} + +\def\displaybreak@{% + \def\displaybreak{\new@ifnextchar[\dspbrk@{\dspbrk@[4]}}} + +\def\dspbrk@[#1]{\global\dspbrk@lvl #1\relax} +\def\math@cr{{\ifnum0=`}\fi + \@ifstar{\global\@eqpen\@M\math@cr@}% + {\global\@eqpen + \ifnum\dspbrk@lvl <\z@ \interdisplaylinepenalty + \else -\@getpen\dspbrk@lvl \fi + \math@cr@}} +\def\math@cr@{\new@ifnextchar[\math@cr@@{\math@cr@@[\z@]}} +\def\math@cr@@[#1]{\ifnum0=`{\fi}\math@cr@@@ + \noalign{\vskip#1\relax}} +\def\Let@{\let\\\math@cr} +\def\restore@math@cr{\def\math@cr@@@{\cr}} +\restore@math@cr +\def\intertext{\@amsmath@err{\Invalid@@\intertext}\@eha} +\def\intertext@{% + \def\intertext##1{% + \ifvmode\else\\\@empty\fi + \noalign{% + \penalty\postdisplaypenalty\vskip\belowdisplayskip + \vbox{\normalbaselines + \ifdim\linewidth=\columnwidth + \else \parshape\@ne \@totalleftmargin \linewidth + \fi + \noindent##1\par}% + \penalty\predisplaypenalty\vskip\abovedisplayskip% + }% +}} +\newhelp\tag@help + {tag cannot be used at this point.\space + If you don't understand why^^Jyou should consult + the documentation.^^JBut don't worry: just continue, and I'll + forget what happened.} +\def\gobble@tag{\@ifstar\@gobble\@gobble} +\def\invalid@tag#1{\@amsmath@err{#1}{\the\tag@help}\gobble@tag} +\def\dft@tag{\invalid@tag{\string\tag\space not allowed here}} +\def\default@tag{\let\tag\dft@tag} +\default@tag +\def\maketag@@{\@ifstar\maketag@@@\tagform@} +\def\maketag@@@#1{\hbox{\m@th\normalfont#1}} +\def\tagform@#1{\maketag@@@{(\ignorespaces#1\unskip\@@italiccorr)}} +\iftagsleft@ + \def\@eqnnum{\hbox to1sp{}\rlap{\normalfont\normalcolor + \hskip -\displaywidth\tagform@\theequation}} +\else + \def\@eqnnum{{\normalfont\normalcolor \tagform@\theequation}} +\fi +\def\thetag{\leavevmode\tagform@} +\def\make@df@tag{\@ifstar\make@df@tag@@\make@df@tag@@@} +\def\make@df@tag@@#1{% + \gdef\df@tag{\maketag@@@{#1}\def\@currentlabel{#1}}} +\def\make@df@tag@@@#1{\gdef\df@tag{\tagform@{#1}% + \toks@\@xp{\p@equation{#1}}\edef\@currentlabel{\the\toks@}}} +\let\ltx@label\label +\def\label@in@display{% + \ifx\df@label\@empty\else + \@amsmath@err{Multiple \string\label's: + label '\df@label' will be lost}\@eha + \fi + \gdef\df@label +} + +\let\df@label\@empty +\def\make@display@tag{% + \if@eqnsw + \refstepcounter{equation}% + \tagform@\theequation + \else + \iftag@ + \df@tag + \global\let\df@tag\@empty + \fi + \fi + \ifx\df@label\@empty\else + \ltx@label{\df@label}% + \global\let\df@label\@empty + \fi +} +\def\tag@in@align{% + \relax + \iftag@ + \DN@{\invalid@tag{Multiple \string\tag}}% + \else + \global\tag@true + \nonumber + \let\next@\make@df@tag + \fi + \next@ +} +\def\raisetag#1{\skip@#1\relax + \xdef\raise@tag{\vskip\iftagsleft@\else-\fi\the\skip@\relax}% +} +\let\raise@tag\@empty +\def\notag{\nonumber} +\newif\ifinany@ +\newif\ifinalign@ +\newif\ifingather@ +\newif\iftag@ +\newif\ifst@rred +\newif\ifmeasuring@ +\newif\ifshifttag@ +\newcount\row@ +\newcount\column@ +\def\column@plus{% + \global\advance\column@\@ne +} +\newcount\maxfields@ +\def\add@amps#1{% + \begingroup + \count@#1 + \DN@{}% + \loop + \ifnum\count@>\column@ + \edef\next@{&\next@}% + \advance\count@\m@ne + \repeat + \@xp\endgroup + \next@ +} +\newhelp\andhelp@ +{An extra & here is so disastrous that you should probably exit^^J +and fix things up.} +\newdimen\eqnshift@ +\newdimen\alignsep@ +\newdimen\tagshift@ +\def\mintagsep{.5\fontdimen6\textfont2} +\def\minalignsep{10pt} +\newdimen\tagwidth@ +\newdimen\totwidth@ +\newdimen\lineht@ +\def\tag@width#1{% + \ifcase\@xp#1\tag@lengths\fi +} + +\def\savetaglength@{% + \begingroup + \let\or\relax + \xdef\tag@lengths{\tag@lengths\or \the\wdz@}% + \endgroup +} + +\def\shift@tag#1{% + \ifcase\@xp#1\tag@shifts\fi\relax +} + +\let\tag@shifts\@empty +\def\saveshift@#1{% + \begingroup + \let\or\relax + \xdef\tag@shifts{\or#1\tag@shifts}% + \endgroup +} +\def\displ@y{\@display@init{}} +\def\@display@init#1{% + \global\dt@ptrue + \openup\jot\m@th + \everycr{% + \noalign{% + #1% + \ifdt@p + \global\dt@pfalse + \vskip-\lineskiplimit + \vskip\normallineskiplimit + \else + \penalty\@eqpen + \fi + }% + }% +} +\def\displ@y@{\@display@init{% + \global\column@\z@ \global\dspbrk@lvl\m@ne + \global\tag@false \global\let\raise@tag\@empty +}} +\def\black@#1{% + \noalign{% + \ifdim#1>\displaywidth + \dimen@\prevdepth + \nointerlineskip + \vskip-\ht\strutbox@ + \vskip-\dp\strutbox@ + \vbox{\noindent\hbox to#1{\strut@\hfill}}% + \prevdepth\dimen@ + \fi + }% +} +\def\savecounters@{% + \begingroup + \def\@elt##1{% + \global\csname c@##1\endcsname\the\csname c@##1\endcsname}% + \xdef\@tempa{% + \cl@@ckpt + \let\@nx\restorecounters@\@nx\@empty + }% + \endgroup + \let\restorecounters@\@tempa +} +\let\restorecounters@\@empty +\def\savealignstate@{% + \begingroup + \let\or\relax + \xdef\@tempa{% + \global\totwidth@\the\totwidth@ + \global\row@\the\row@ + \gdef\@nx\tag@lengths{\tag@lengths}% + \let\@nx\restorealignstate@\@nx\@empty + }% + \endgroup + \let\restorealignstate@\@tempa +} + +\let\restorealignstate@\@empty +\newtoks\@envbody +\def\addto@envbody#1{\@envbody\@xp{\the\@envbody#1}} +\def\collect@body#1{% + \@envbody{}% + \def\process@envbody{% + \@xp#1\@xp{\the\@envbody}% + }% + \@xp\let\csname\@currenvir\endcsname\collect@@body + \csname\@currenvir\endcsname +} +\def\collect@@body#1\end#2{% + \def\@tempa{#2}% + \ifx\@tempa\@currenvir + \addto@envbody{#1}% + \@xp\edef\csname\@currenvir\endcsname{% + \@nx\process@envbody\@nx\end{\@tempa}% + }% + \else + \addto@envbody{#1\end{#2}}% + \fi + \csname\@currenvir\endcsname +} +\newcommand{\start@aligned}[2]{% + \RIfM@\else + \nonmatherr@{\begin{\@currenvir}}% + \fi + \null\,% + \if #1t\vtop \else \if#1b \vbox \else \vcenter \fi \fi \bgroup + \maxfields@#2\relax + \ifnum\maxfields@>\m@ne + \multiply\maxfields@\tw@ + \let\math@cr@@@\math@cr@@@alignedat + \else + \restore@math@cr + \fi + \Let@ + \default@tag + \ifinany@\else\openup\jot\fi + \column@\z@ + \ialign\bgroup + &\column@plus + \hfil + \strut@ + $\m@th\displaystyle{##}$% + &\column@plus + $\m@th\displaystyle{{}##}$% + \hfil + \crcr +} +\def\math@cr@@@alignedat{% + \ifnum\column@>\maxfields@ + \begingroup + \measuring@false + \@amsmath@err{Extra & on this line}% + {\the\andhelp@}% "An extra & here is disastrous" + \endgroup + \fi + \column@\z@ + \cr +} +\newenvironment{aligned}[1][c]{% + \start@aligned{#1}\m@ne +}{% + \crcr\egroup\egroup +} +\newcommand{\alignedat}[2][c]{% + \start@aligned{#1}% +} +\let\endalignedat\endaligned +\newcommand{\gathered}[1][c]{% + \RIfM@\else + \nonmatherr@{\begin{gathered}}% + \fi + \null\,% + \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi \bgroup + \Let@ + \restore@math@cr + \ifinany@\else\openup\jot\fi + \ialign\bgroup + \hfil\strut@$\m@th\displaystyle##$\hfil + \crcr +} +\let\endgathered\endaligned +\def\start@gather#1{% + \RIfM@ + \nomath@env + \DN@{\@namedef{end\@currenvir}{}\@gobble}% + \else + $$% + #1% + \ifst@rred\else + \global\@eqnswtrue + \fi + \let\next@\gather@ + \fi + \collect@body\next@ +} +\def\gather{\start@gather\st@rredfalse} + +\@namedef{gather*}{\start@gather\st@rredtrue} +\def\gather@#1{% + \ingather@true + \inany@true + \let\tag\tag@in@align + \let\label\label@in@display + \displaybreak@ + \intertext@ + \displ@y@ + \Let@ + \let\math@cr@@@\math@cr@@@gather + \gmeasure@{#1}% + \global\shifttag@false + \tabskip\z@skip + \global\row@\@ne + \halign to\displaywidth\bgroup + \strut@ + \setboxz@h{$\m@th\displaystyle{##}$}% + \calc@shift@gather + \set@gather@field + \tabskip\@centering + &\setboxz@h{\strut@{##}}% + \place@tag@gather + \tabskip \iftagsleft@ \gdisplaywidth@ \else \z@skip \span\fi + \crcr + #1% +} +\def\endgather{% + \math@cr + \black@\totwidth@ + \egroup + $$% + \global\@ignoretrue +} + +\@xp\let\csname endgather*\endcsname\endgather +\def\gmeasure@#1{% + \begingroup + \measuring@true + \totwidth@\z@ + \global\let\tag@lengths\@empty + \savecounters@ + \setbox\@ne\vbox{% + \everycr{\noalign{\global\tag@false + \global\let\raise@tag\@empty \global\column@\z@}}% + \let\label\@gobble + \halign{% + \setboxz@h{$\m@th\displaystyle{##}$}% + \ifdim\wdz@>\totwidth@ + \global\totwidth@\wdz@ + \fi + &\setboxz@h{\strut@{##}}% + \savetaglength@ + \crcr + #1% + \math@cr@@@ + }% + }% + \restorecounters@ + \if@fleqn + \global\advance\totwidth@\@mathmargin + \fi + \iftagsleft@ + \ifdim\totwidth@>\displaywidth + \global\let\gdisplaywidth@\totwidth@ + \else + \global\let\gdisplaywidth@\displaywidth + \fi + \fi + \endgroup +} +\def\math@cr@@@gather{% + \ifst@rred\nonumber\fi + &\relax + \make@display@tag + \ifst@rred\else\global\@eqnswtrue\fi + \global\advance\row@\@ne + \cr +} +\def\calc@shift@gather{% + \dimen@\mintagsep\relax + \tagwidth@\tag@width\row@\relax + \if@fleqn + \global\eqnshift@\@mathmargin + \ifdim\tagwidth@>\z@ + \advance\dimen@\tagwidth@ + \iftagsleft@ + \ifdim\dimen@>\@mathmargin + \global\shifttag@true + \fi + \else + \advance\dimen@\@mathmargin + \advance\dimen@\wdz@ + \ifdim\dimen@>\displaywidth + \global\shifttag@true + \fi + \fi + \fi + \else + \global\eqnshift@\displaywidth + \global\advance\eqnshift@-\wdz@ + \ifdim\tagwidth@>\z@ + \multiply\dimen@\tw@ + \advance\dimen@\wdz@ + \advance\dimen@\tagwidth@ + \ifdim\dimen@>\displaywidth + \global\shifttag@true + \else + \ifdim\eqnshift@<4\tagwidth@ + \global\advance\eqnshift@-\tagwidth@ + \fi + \fi + \fi + \global\divide\eqnshift@\tw@ + \iftagsleft@ + \global\eqnshift@-\eqnshift@ + \global\advance\eqnshift@\displaywidth + \global\advance\eqnshift@-\wdz@ + \fi + \ifdim\eqnshift@<\z@ + \global\eqnshift@\z@ + \fi + \fi +} +\def\place@tag@gather{% + \iftagsleft@ + \kern-\gdisplaywidth@ + \ifshifttag@ + \rlap{\vbox{% + \normalbaselines + \boxz@ + \vbox to\lineht@{}% + \raise@tag + }}% + \global\shifttag@false + \else + \rlap{\boxz@}% + \fi + \else + \ifdim\totwidth@>\displaywidth + \dimen@\totwidth@ + \advance\dimen@-\displaywidth + \kern-\dimen@ + \fi + \ifshifttag@ + \llap{\vtop{% + \raise@tag + \normalbaselines + \setbox\@ne\null + \dp\@ne\lineht@ + \box\@ne + \boxz@ + }}% + \global\shifttag@false + \else + \llap{\boxz@}% + \fi + \fi +} +\def\set@gather@field{% + \iftagsleft@ + \global\lineht@\ht\z@ + \else + \global\lineht@\dp\z@ + \fi + \kern\eqnshift@ + \boxz@ + \hfil +} +\newif\ifxxat@ + +\newif\ifcheckat@ + +\let\xatlevel@\@empty +\def\start@align#1#2#3{% + \let\xatlevel@#1% always \z@, \@ne, or \tw@ + \maxfields@#3\relax + \ifnum\maxfields@>\m@ne + \checkat@true + \ifnum\xatlevel@=\tw@ + \xxat@true + \fi + \multiply\maxfields@\tw@ + \else + \checkat@false + \fi + \ifingather@ + {\ifnum0=`}\fi + \DN@{\vcenter\bgroup\savealignstate@\align@#2}% + \else + \ifmmode + \nomath@env + \DN@{\@namedef{end\@currenvir}{}\@gobble}% + \else + $$% + \DN@{\align@#2}% + \fi + \fi + \collect@body\next@ +} +\def\alignat{\start@align\z@\st@rredfalse} +\@namedef{alignat*}{\start@align\z@\st@rredtrue} +\def\xalignat{\start@align\@ne\st@rredfalse} +\@namedef{xalignat*}{\start@align\@ne\st@rredtrue} +\def\xxalignat{\start@align\tw@\st@rredtrue} +\def\align{\start@align\@ne\st@rredfalse\m@ne} +\@namedef{align*}{\start@align\@ne\st@rredtrue\m@ne} +\def\flalign{\start@align\tw@\st@rredfalse\m@ne} +\@namedef{flalign*}{\start@align\tw@\st@rredtrue\m@ne} +\def\align@#1#2{% + \inany@true + \inalign@true + \displaybreak@ + \intertext@ + \ifingather@\else\displ@y@\fi + \Let@ + \let\math@cr@@@\math@cr@@@align + \ifxxat@\else + \let\tag\tag@in@align + \fi + \let\label\label@in@display + #1% set st@r + \ifst@rred\else + \global\@eqnswtrue + \fi + \measure@{#2}% + \global\row@\z@ + \tabskip\eqnshift@ + \halign\bgroup + \span\align@preamble\crcr + #2% +} +\def\endalign{% + \math@cr + \black@\totwidth@ + \egroup + \ifingather@ + \restorealignstate@ + \egroup + \nonumber + \ifnum0=`{\fi}% + \else + $$% + \fi + \global\@ignoretrue +} +\@xp\let\csname endalign*\endcsname\endalign +\let\endxalignat\endalign +\@xp\let\csname endxalignat*\endcsname\endalign +\let\endxxalignat\endalign +\let\endalignat\endalign +\@xp\let\csname endalignat*\endcsname\endalign +\let\endflalign\endalign +\@xp\let\csname endflalign*\endcsname\endalign +\def\math@cr@@@align{% + \kern-\alignsep@ + \ifst@rred\nonumber\fi + \if@eqnsw \global\tag@true \fi + \global\advance\row@\@ne + \iftag@ + \add@amps\maxfields@ + \omit + \setboxz@h{\@lign\strut@{\make@display@tag}}% + \place@tag + \fi + \ifst@rred\else\global\@eqnswtrue\fi + \global\lineht@\z@ + \cr +} +\def\math@cr@@@align@measure{% + &\omit + \global\advance\row@\@ne + \ifst@rred\nonumber\fi + \if@eqnsw \global\tag@true \fi + \ifnum\column@>\maxfields@ + \ifcheckat@ + \begingroup + \measuring@false + \@amsmath@err{Extra & on this line}% + {\the\andhelp@}% "An extra & here is disastrous" + \endgroup + \else + \global\maxfields@\column@ + \fi + \fi + \setboxz@h{\@lign\strut@{% + \if@eqnsw + \stepcounter{equation}% + \tagform@\theequation + \else + \iftag@\df@tag\fi + \fi + }}% + \savetaglength@ + \ifst@rred\else\global\@eqnswtrue\fi + \cr +} +\let\field@lengths\@empty + +\def\savefieldlength@{% + \begingroup + \let\or\relax + \xdef\field@lengths{% + \field@lengths + \ifnum\column@=0 + \or + \else + ,% + \fi + \the\wdz@ + }% + \endgroup +} + +\def\fieldlengths@#1{% + \ifcase\@xp#1\field@lengths\fi +} +\let\maxcolumn@widths\@empty +\def\maxcol@width#1{% + \ifcase\@xp#1\maxcolumn@widths\fi\relax +} +\def\measure@#1{% + \begingroup + \measuring@true + \eqnshift@\z@ + \alignsep@\z@ + \global\let\tag@lengths\@empty + \global\let\field@lengths\@empty + \savecounters@ + \global\setbox0\vbox{% + \let\math@cr@@@\math@cr@@@align@measure + \everycr{\noalign{\global\tag@false + \global\let\raise@tag\@empty \global\column@\z@}}% + \let\label\@gobble + \global\row@\z@ + \tabskip\z@ + \halign{\span\align@preamble\crcr + #1% + \math@cr@@@ + \column@\z@ + \add@amps\maxfields@\cr + }% + }% + \restorecounters@ + \ifodd\maxfields@ + \global\advance\maxfields@\@ne + \fi + \ifnum\xatlevel@=\tw@ + \ifnum\maxfields@<\thr@@ + \let\xatlevel@\z@ + \fi + \fi + \setbox0\vbox{% + \unvbox0 + \unpenalty + \global\setbox1\lastbox + }% + \global\totwidth@\wd1 + \if@fleqn + \global\advance\totwidth@\@mathmargin + \fi + \global\let\maxcolumn@widths\@empty + \begingroup + \let\or\relax + \loop + \setbox1\hbox{% + \unhbox1 + \unskip + \global\setbox0\lastbox + }% + \ifhbox0 + \xdef\maxcolumn@widths{ \or \the\wd0 \maxcolumn@widths}% + \repeat + \endgroup + \dimen@\displaywidth + \advance\dimen@-\totwidth@ + \ifcase\xatlevel@ + \global\alignsep@\z@ + \let\minalignsep\z@ + \@tempcntb\z@ + \if@fleqn + \@tempcnta\@ne + \global\eqnshift@\@mathmargin + \else + \@tempcnta\tw@ + \global\eqnshift@\dimen@ + \global\divide\eqnshift@\@tempcnta + \fi + \or + \@tempcntb\maxfields@ + \divide\@tempcntb\tw@ + \@tempcnta\@tempcntb + \advance\@tempcntb\m@ne + \if@fleqn + \global\eqnshift@\@mathmargin + \alignsep@\dimen@ + \global\divide\alignsep@\@tempcnta + \else + \global\advance\@tempcnta\@ne + \global\eqnshift@\dimen@ + \global\divide\eqnshift@\@tempcnta + \global\alignsep@\eqnshift@ + \fi + \or + \@tempcntb\maxfields@ + \divide\@tempcntb\tw@ + \global\advance\@tempcntb\m@ne + \global\@tempcnta\@tempcntb + \global\eqnshift@\z@ + \global\alignsep@\dimen@ + \if@fleqn + \advance\alignsep@\@mathmargin\relax + \fi + \global\divide\alignsep@\@tempcntb + \fi + \ifdim\alignsep@<\minalignsep\relax + \global\alignsep@\minalignsep\relax + \ifdim\eqnshift@>\z@ + \if@fleqn\else + \eqnshift@\displaywidth + \advance\eqnshift@-\totwidth@ + \advance\eqnshift@-\@tempcntb\alignsep@ + \global\divide\eqnshift@\tw@ + \fi + \fi + \fi + \ifdim\eqnshift@<\z@ + \global\eqnshift@\z@ + \fi + \calc@shift@align + \tagshift@\totwidth@ + \advance\tagshift@\@tempcntb\alignsep@ + \if@fleqn + \ifnum\xatlevel@=\tw@ + \global\advance\tagshift@-\@mathmargin\relax + \fi + \else + \global\advance\tagshift@\eqnshift@ + \fi + \iftagsleft@ \else + \global\advance\tagshift@-\displaywidth + \fi + \dimen@\minalignsep\relax + \advance\totwidth@\@tempcntb\dimen@ + \ifdim\totwidth@>\displaywidth + \global\let\displaywidth@\totwidth@ + \else + \global\let\displaywidth@\displaywidth + \fi + \endgroup +} +\iftagsleft@\if@fleqn + \def\calc@shift@align{% + \global\let\tag@shifts\@empty + \begingroup + \@tempdima\@mathmargin\relax + \advance\@tempdima-\mintagsep\relax + \loop + \ifnum\row@>0 + \ifdim\tag@width\row@>\z@ + \x@calc@shift@lf + \else + \saveshift@0% + \fi + \advance\row@\m@ne + \repeat + \endgroup + } + \def\x@calc@shift@lf{% + \ifdim\eqnshift@=\z@ + \global\eqnshift@\@mathmargin\relax + \alignsep@\displaywidth + \advance\alignsep@-\totwidth@ + \global\divide\alignsep@\@tempcntb + \ifdim\alignsep@<\minalignsep\relax + \global\alignsep@\minalignsep\relax + \fi + \fi + \ifdim\tag@width\row@>\@tempdima + \saveshift@1% + \else + \saveshift@0% + \fi + } +\fi\fi +\iftagsleft@\else\if@fleqn + \def\calc@shift@align{% + \global\let\tag@shifts\@empty + \begingroup + \loop + \ifnum\row@>0 + \ifdim\tag@width\row@>\z@ + \x@calc@shift@rf + \else + \saveshift@0% + \fi + \advance\row@\m@ne + \repeat + \endgroup + } + \def\x@calc@shift@rf{% + \column@\z@ + \@tempdimb\z@ + \@tempdimc\z@ + \edef\@tempb{\fieldlengths@\row@}% + \@for\@tempa:=\@tempb\do{% + \advance\column@\@ne + \x@rcalc@width + }% + \begingroup + \advance\column@\m@ne + \divide\column@\tw@ + \ifnum\@tempcntb>\column@ + \advance\@tempcnta-\@tempcntb + \advance\@tempcnta\column@ + \@tempcntb\column@ + \fi + \tagwidth@\tag@width\row@\relax + \@tempdima\eqnshift@ + \advance\@tempdima\@tempdimc\relax + \advance\@tempdima\tagwidth@ + \dimen@\minalignsep\relax + \multiply\dimen@\@tempcntb + \advance\dimen@\mintagsep\relax + \advance\dimen@\@tempdima + \ifdim\dimen@>\displaywidth + \saveshift@1% + \else + \saveshift@0% + \dimen@\alignsep@\relax + \multiply\dimen@\@tempcntb + \advance\dimen@\@tempdima + \advance\dimen@\tagwidth@ + \ifdim\dimen@>\displaywidth + \dimen@\displaywidth + \advance\dimen@-\@tempdima + \ifnum\xatlevel@=\tw@ + \advance\dimen@-\mintagsep\relax + \fi + \divide\dimen@\@tempcnta + \ifdim\dimen@<\minalignsep\relax + \global\alignsep@\minalignsep\relax + \else + \global\alignsep@\dimen@ + \fi + \fi + \fi + \endgroup + } +\fi\fi +\iftagsleft@\else\if@fleqn\else + \def\calc@shift@align{% + \global\let\tag@shifts\@empty + \begingroup + \loop + \ifnum\row@>0 + \ifdim\tag@width\row@>\z@ + \x@calc@shift@rc + \else + \saveshift@0% + \fi + \advance\row@\m@ne + \repeat + \endgroup + } + \def\x@calc@shift@rc{% + \column@\z@ + \@tempdimb\z@ + \@tempdimc\z@ + \edef\@tempb{\fieldlengths@\row@}% + \@for\@tempa:=\@tempb\do{% + \advance\column@\@ne + \x@rcalc@width + }% + \begingroup + \advance\column@\m@ne + \divide\column@\tw@ + \ifnum\@tempcntb>\column@ + \advance\@tempcnta-\@tempcntb + \advance\@tempcnta\column@ + \@tempcntb\column@ + \fi + \tagwidth@\tag@width\row@\relax + \@tempdima\@tempdimc + \advance\@tempdima\tagwidth@ + \dimen@\minalignsep\relax + \multiply\dimen@\@tempcntb + \advance\dimen@\mintagsep\relax + \ifnum\xatlevel@=\tw@ \else + \advance\dimen@\mintagsep\relax + \fi + \advance\dimen@\@tempdima + \ifdim\dimen@>\displaywidth + \saveshift@1% + \else + \saveshift@0% + \dimen@\eqnshift@ + \advance\dimen@\@tempdima + \advance\dimen@\@tempcntb\alignsep@ + \advance\dimen@\tagwidth@ + \ifdim\dimen@>\displaywidth + \dimen@\displaywidth + \advance\dimen@-\@tempdima + \ifnum\xatlevel@=\tw@ + \advance\dimen@-\mintagsep\relax + \fi + \divide\dimen@\@tempcnta + \ifdim\dimen@<\minalignsep\relax + \global\alignsep@\minalignsep\relax + \eqnshift@\displaywidth + \advance\eqnshift@-\@tempdima + \advance\eqnshift@-\@tempcntb\alignsep@ + \global\divide\eqnshift@\tw@ + \else + \ifdim\dimen@<\eqnshift@ + \ifdim\dimen@<\z@ + \global\eqnshift@\z@ + \else + \global\eqnshift@\dimen@ + \fi + \fi + \ifdim\dimen@<\alignsep@ + \global\alignsep@\dimen@ + \fi + \fi + \fi + \fi + \endgroup + } +\fi\fi +\iftagsleft@\else + \def\x@rcalc@width{% + \ifdim\@tempa > \z@ + \advance\@tempdimc\@tempdimb + \ifodd\column@ + \advance\@tempdimc\maxcol@width\column@ + \@tempdimb\z@ + \else + \advance\@tempdimc\@tempa\relax + \@tempdimb\maxcol@width\column@ + \advance\@tempdimb-\@tempa\relax + \fi + \else + \advance\@tempdimb\maxcol@width\column@\relax + \fi + } +\fi +\iftagsleft@\if@fleqn\else + \def\calc@shift@align{% + \global\let\tag@shifts\@empty + \begingroup + \loop + \ifnum\row@>\z@ + \ifdim\tag@width\row@>\z@ + \x@calc@shift@lc + \else + \saveshift@0% + \fi + \advance\row@\m@ne + \repeat + \endgroup + } + \def\x@calc@shift@lc{% + \column@\z@ + \@tempdima\z@ % ``width of equation'' + \@tempdimb\z@ % ``indent of equation'' + \edef\@tempb{\fieldlengths@\row@}% + \@for\@tempa:=\@tempb\do{% + \advance\column@\@ne + \x@lcalc@width + }% + \begingroup + \tagwidth@\tag@width\row@\relax + \@tempdima\totwidth@ + \advance\@tempdima-\@tempdimb + \advance\@tempdima\tagwidth@ + \dimen@\minalignsep\relax + \multiply\dimen@\@tempcntb + \advance\dimen@\mintagsep\relax + \ifnum\xatlevel@=\tw@ \else + \advance\dimen@\mintagsep\relax + \fi + \advance\dimen@\@tempdima + \ifdim\dimen@>\displaywidth + \saveshift@1% + \else + \saveshift@0% + \dimen@\alignsep@ + \multiply\dimen@\count@ + \advance\dimen@\eqnshift@ + \advance\dimen@\@tempdimb + \ifdim\dimen@<2\tagwidth@ + \dimen@\displaywidth + \advance\dimen@-\@tempdima + \ifnum\xatlevel@=\tw@ + \advance\dimen@-\mintagsep\relax + \fi + \divide\dimen@\@tempcnta + \ifdim\dimen@<\minalignsep\relax + \global\alignsep@\minalignsep\relax + \dimen@\displaywidth + \advance\dimen@-\@tempdima + \advance\dimen@-\@tempcntb\alignsep@ + \global\divide\dimen@\tw@ + \else + \ifdim\dimen@<\alignsep@ + \global\alignsep@\dimen@ + \fi + \fi + \ifnum\xatlevel@=\tw@ + \dimen@\mintagsep\relax + \fi + \advance\dimen@\tagwidth@ + \advance\dimen@-\@tempdimb + \advance\dimen@-\count@\alignsep@ + \ifdim\dimen@>\eqnshift@ + \global\eqnshift@\dimen@ + \fi + \fi + \fi + \endgroup + } + \def\x@lcalc@width{% + \ifdim\@tempdima = \z@ + \ifdim\@tempa > \z@ + \@tempdima\p@ + \ifodd\column@ + \advance\@tempdimb \maxcol@width\column@ + \advance\@tempdimb-\@tempa + \fi + \count@\column@ + \advance\count@\m@ne + \divide\count@\tw@ + \advance\@tempcnta-\count@ + \advance\@tempcntb-\count@ + \else + \advance\@tempdimb \maxcol@width\column@\relax + \fi + \fi + } +\fi\fi +\def\place@tag{% + \iftagsleft@ + \kern-\tagshift@ + \if1\shift@tag\row@\relax + \rlap{\vbox{% + \normalbaselines + \boxz@ + \vbox to\lineht@{}% + \raise@tag + }}% + \else + \rlap{\boxz@}% + \fi + \kern\displaywidth@ + \else + \kern-\tagshift@ + \if1\shift@tag\row@\relax + \llap{\vtop{% + \raise@tag + \normalbaselines + \setbox\@ne\null + \dp\@ne\lineht@ + \box\@ne + \boxz@ + }}% + \else + \llap{\boxz@}% + \fi + \fi +} +\def\align@preamble{% + &\hfil + \strut@ + \setboxz@h{\@lign$\m@th\displaystyle{##}$}% + \ifmeasuring@\savefieldlength@\fi + \set@field + \tabskip\z@skip + &\setboxz@h{\@lign$\m@th\displaystyle{{}##}$}% + \ifmeasuring@\savefieldlength@\fi + \set@field + \hfil + \tabskip\alignsep@ +} +\def\set@field{% + \column@plus + \iftagsleft@ + \ifdim\ht\z@>\lineht@ + \global\lineht@\ht\z@ + \fi + \else + \ifdim\dp\z@>\lineht@ + \global\lineht@\dp\z@ + \fi + \fi + \boxz@ +} +\def\split{% + \ifinany@ + \@xp\insplit@ + \else + \@xp\split@err + \fi +} +\edef\split@err{% + \@nx\@amsmath@err{% + \string\begin{split} won't work here% + }{% + \@xp\@nx\csname + Did you forget a preceding \string\begin{equation}?^^J% + If not, perhaps the `aligned' environment is what you want.\endcsname}% +} +\def\insplit@{% + \global\setbox\z@\vbox\bgroup + \Let@ + \restore@math@cr + \default@tag % disallow use of \tag here + \ialign\bgroup + \hfil + \strut@ + $\m@th\displaystyle{##}$% + &$\m@th\displaystyle{{}##}$% + \hfill % Why not \hfil?---dmj, 1994/12/28 + \crcr +} +\def\endsplit{% + \crcr + \egroup + \egroup + \iftagsleft@ + \@xp\lendsplit@ + \else + \@xp\rendsplit@ + \fi +} +\def\rendsplit@{% + \ifinalign@ + \global\setbox9 \vtop{% + \unvcopy\z@ + \global\setbox8 \lastbox + \unskip + }% + \setbox\@ne\hbox{% + \unhcopy8 + \unskip + \global\setbox\tw@\lastbox + \unskip + \global\setbox\thr@@\lastbox + }% + \ifctagsplit@ + \gdef\split@{% + \hbox to\wd\thr@@{}% + &\vcenter{\vbox{\moveleft\wd\thr@@\boxz@}}% + }% + \else + \global\setbox7 \hbox{\unhbox\tw@\unskip}% + \gdef\split@{% + \global\@tempcnta\column@ + &\setboxz@h{}% + \savetaglength@ + \global\advance\row@\@ne + \vbox{\moveleft\wd\thr@@\box9}% + \crcr + \noalign{\global\lineht@\z@}% + \add@amps\@tempcnta + \box\thr@@ + &\box7 + }% + \fi + \else + \ifctagsplit@ + \gdef\split@{\vcenter{\boxz@}}% + \else + \gdef\split@{% + \boxz@ + }% + \fi + \fi + \aftergroup\split@ +} +\def\lendsplit@{% + \global\setbox9\vtop{\unvcopy\z@}% + \ifinalign@ + \setbox\@ne\vbox{% + \unvcopy\z@ + \global\setbox8\lastbox + }% + \setbox\@ne\hbox{% + \unhcopy8% + \unskip + \setbox\tw@\lastbox + \unskip + \global\setbox\thr@@\lastbox + }% + \ifctagsplit@ + \gdef\split@{% + \hbox to\wd\thr@@{}% + &\vcenter{\vbox{\moveleft\wd\thr@@\box9}}% + }% + \else + \gdef\split@{% + \hbox to\wd\thr@@{}% + &\vbox{\moveleft\wd\thr@@\box9}% + }% + \fi + \else + \ifctagsplit@ + \gdef\split@{\vcenter{\box9}}% + \else + \gdef\split@{\box9}% + \fi + \fi + \aftergroup\split@ +} +\newskip\multlinegap +\multlinegap10pt +\newskip\multlinetaggap +\multlinetaggap10pt +\def\start@multline#1{% + \RIfM@ + \nomath@env + \DN@{\@namedef{end\@currenvir}{}\@gobble}% + \else + $$% + #1% + \ifst@rred + \nonumber + \else + \global\@eqnswtrue + \fi + \let\next@\multline@ + \fi + \collect@body\next@ +} +\def\multline{\start@multline\st@rredfalse} +\@namedef{multline*}{\start@multline\st@rredtrue} +\def\multline@#1{% + \inany@true + \Let@ + \@display@init{\global\advance\row@\@ne \global\dspbrk@lvl\m@ne}% + \displaybreak@ + \restore@math@cr + \let\tag\tag@in@align + \global\tag@false \global\let\raise@tag\@empty + \mmeasure@{#1}% + \let\tag\gobble@tag \let\label\@gobble + \tabskip \if@fleqn \@mathmargin \else \z@skip \fi + \totwidth@\displaywidth + \if@fleqn + \advance\totwidth@-\@mathmargin + \fi + \halign\bgroup + \hbox to\totwidth@{% + \if@fleqn + \hskip \@centering \relax + \else + \hfil + \fi + \strut@ + $\m@th\displaystyle{}##$% + \hfil + }% + \crcr + \if@fleqn + \hskip-\@mathmargin + \else + \hfilneg + \fi + \iftagsleft@ + \iftag@ + \begingroup + \ifshifttag@ + \rlap{\vbox{% + \normalbaselines + \hbox{% + \strut@ + \make@display@tag + }% + \vbox to\lineht@{}% + \raise@tag + }}% + \hskip\multlinegap + \else + \make@display@tag + \hskip\multlinetaggap + \fi + \endgroup + \else + \hskip\multlinegap + \fi + \else + \hskip\multlinegap + \fi + #1% +} +\def\endmultline{% + \iftagsleft@ + \@xp\lendmultline@ + \else + \@xp\rendmultline@ + \fi + \global\@ignoretrue +} +\@xp\let\csname endmultline*\endcsname=\endmultline +\def\lendmultline@{% + \hfilneg + \hskip\multlinegap + \math@cr + \egroup + $$% +} +\def\rendmultline@{% + \iftag@ + \begingroup + \ifshifttag@ + \hskip\multlinegap + \llap{\vtop{% + \raise@tag + \normalbaselines + \setbox\@ne\null + \dp\@ne\lineht@ + \box\@ne + \hbox{\strut@\make@display@tag}% + }}% + \else + \hskip\multlinetaggap + \make@display@tag + \fi + \endgroup + \else + \hskip\multlinegap + \fi + \hfilneg + \math@cr + \egroup$$% +} +\def\mmeasure@#1{% + \begingroup + \measuring@true + \def\label##1{% + \begingroup\measuring@false\label@in@display{##1}\endgroup}% + \def\math@cr@@@{\cr}% + \let\shoveleft\@iden \let\shoveright\@iden + \savecounters@ + \global\row@\z@ + \setbox\@ne\vbox{% + \global\let\df@tag\@empty + \halign{% + \setboxz@h{\@lign$\m@th\displaystyle{}##$}% + \iftagsleft@ + \ifnum\row@=\@ne + \global\totwidth@\wdz@ + \global\lineht@\ht\z@ + \fi + \else + \global\totwidth@\wdz@ + \global\lineht@\dp\z@ + \fi + \crcr + #1% + \crcr + }% + }% + \ifx\df@tag\@empty\else\global\tag@true\fi + \if@eqnsw\global\tag@true\fi + \iftag@ + \setboxz@h{% + \if@eqnsw + \stepcounter{equation}% + \tagform@\theequation + \else + \df@tag + \fi + }% + \global\tagwidth@\wdz@ + \dimen@\totwidth@ + \advance\dimen@\tagwidth@ + \advance\dimen@\multlinetaggap + \iftagsleft@\else + \if@fleqn + \advance\dimen@\@mathmargin + \fi + \fi + \ifdim\dimen@>\displaywidth + \global\shifttag@true + \else + \global\shifttag@false + \fi + \fi + \restorecounters@ + \endgroup +} +\iftagsleft@ + \def\shoveright#1{% + #1% + \hfilneg + \hskip\multlinegap + } +\else + \def\shoveright#1{% + #1% + \hfilneg + \iftag@ + \ifshifttag@ + \hskip\multlinegap + \else + \hskip\tagwidth@ + \hskip\multlinetaggap + \fi + \else + \hskip\multlinegap + \fi + } +\fi + +\if@fleqn + \def\shoveleft#1{#1}% +\else + \iftagsleft@ + \def\shoveleft#1{% + \setboxz@h{$\m@th\displaystyle{}#1$}% + \setbox\@ne\hbox{$\m@th\displaystyle#1$}% + \hfilneg + \iftag@ + \ifshifttag@ + \hskip\multlinegap + \else + \hskip\tagwidth@ + \hskip\multlinetaggap + \fi + \else + \hskip\multlinegap + \fi + \hskip.5\wd\@ne + \hskip-.5\wdz@ + #1% + } + \else + \def\shoveleft#1{% + \setboxz@h{$\m@th\displaystyle{}#1$}% + \setbox\@ne\hbox{$\m@th\displaystyle#1$}% + \hfilneg + \hskip\multlinegap + \hskip.5\wd\@ne + \hskip-.5\wdz@ + #1% + } + \fi +\fi +\def\[{% + \RIfM@ + \@badmath + \else + \DN@{% + $$% + \ingather@true + \inany@true + \def\\{\@amsmath@err{\Invalid@@\\}\@eha}% + \tabskip\@mathmargin + \halign to\displaywidth\bgroup + \if@fleqn\else\hfil\fi + \setboxz@h{$\m@th\displaystyle{####}$}% + \global\totwidth@\wdz@ + \boxz@ + \hfil + \tabskip\@centering + \cr + }% + \@xp\next@ + \fi +} + +\def\]{% + \RIfM@ + \DN@{% + \crcr + \black@\totwidth@ + \egroup + $$% + }% + \@xp\next@ + \else + \@badmath + \fi +} +\@xp\def\@xp\@arrayparboxrestore\@xp{\@arrayparboxrestore + \inany@false\ingather@false\inalign@false \default@tag} +\def\equation{\gather\def\\{\@amsmath@err{\Invalid@@\\}\@eha}} +\def\endequation{\endgather} +\newenvironment{equation*}{% + \equation +}{% + \nonumber\endequation +} +%%%%%%%%%%%%%%%%% end of amsmath.sty code + +\newcommand{\uppercasenonmath}[1]{\toks@\@emptytoks + \@xp\@skipmath\@xp\@empty#1$$% + \edef#1{\@nx\@upprep\the\toks@}% +} +\newcommand{\@upprep}{% + \spaceskip1.3\fontdimen2\font plus1.3\fontdimen3\font + \upchars@} +\newcommand{\upchars@}{% + \def\ss{SS}\def\i{I}\def\j{J}\def\ae{\AE}\def\oe{\OE}% + \def\o{\O}\def\aa{\AA}\def\l{\L}\def\Mc{M{\scshape c}}} +\newcommand{\@skipmath}{} +\long\def\@skipmath#1$#2${% + \@xskipmath#1\(\)% + \@ifnotempty{#2}{\toks@\@xp{\the\toks@$#2$}\@skipmath\@empty}}% +\newcommand{\@xskipmath}{} +\long\def\@xskipmath#1\(#2\){% + \uppercase{\toks@\@xp\@xp\@xp{\@xp\the\@xp\toks@#1}}% + \@ifnotempty{#2}{\toks@\@xp{\the\toks@\(#2\)}\@xskipmath\@empty}}% +\newcommand{\today}{% + \relax\ifcase\month\or + January\or February\or March\or April\or May\or June\or + July\or August\or September\or October\or November\or December\fi + \space\number\day, \number\year} +\DeclareOldFontCommand{\rm}{\normalfont\rmfamily}{\mathrm} +\DeclareOldFontCommand{\sf}{\normalfont\sffamily}{\mathsf} +\DeclareOldFontCommand{\tt}{\normalfont\ttfamily}{\mathtt} +\DeclareOldFontCommand{\bf}{\normalfont\bfseries}{\mathbf} +\DeclareOldFontCommand{\it}{\normalfont\itshape}{\mathit} +\DeclareOldFontCommand{\sl}{\normalfont\slshape}{\@nomath\sl} +\DeclareOldFontCommand{\sc}{\normalfont\scshape}{\@nomath\sc} +\renewcommand*{\title}[2][]{\gdef\shorttitle{#1}\gdef\@title{#2}} +\edef\title{\@nx\@dblarg + \@xp\@nx\csname\string\title\endcsname} +\renewcommand{\author}[2][]{% + \ifx\@empty\authors + \gdef\shortauthors{#1}\gdef\authors{#2}% + \else + \g@addto@macro\shortauthors{\and#1}% + \g@addto@macro\authors{\and#2}% + \g@addto@macro\addresses{\author{}}% + \fi +} +\edef\author{\@nx\@dblarg + \@xp\@nx\csname\string\author\endcsname} +\let\shortauthors\@empty \let\authors\@empty +\let\addresses\@empty \let\thankses\@empty +\newcommand{\address}[2][]{\g@addto@macro\addresses{\address{#1}{#2}}} +\newcommand{\curraddr}[2][]{\g@addto@macro\addresses{\curraddr{#1}{#2}}} +\newcommand{\email}[2][]{\g@addto@macro\addresses{\email{#1}{#2}}} +\newcommand{\urladdr}[2][]{\g@addto@macro\addresses{\urladdr{#1}{#2}}} +\renewcommand{\thanks}[1]{\g@addto@macro\thankses{\thanks{#1}}} +\def\enddoc@text{\ifx\@empty\@translators \else\@settranslators\fi + \ifx\@empty\addresses \else\@setaddresses\fi} +\AtEndDocument{\enddoc@text} +\let\@date\@empty +\def\dedicatory#1{\def\@dedicatory{#1}} +\let\@dedicatory=\@empty +\def\keywords#1{\def\@keywords{#1}} +\let\@keywords=\@empty +\def\twokname{2000} +\newcommand\subjclass[2][]{% 8/2000 ynm +\def\testname{#1}\ifx\testname\twokname% +\def\subjclassname{\textup{2000} Mathematics Subject +Classification}\fi\def\@subjclass{#2}} % subj +\let\@subjclass=\@empty +\def\commby#1{\def\@commby{(Communicated by #1)}} +\let\@commby=\@empty +\def\translator#1{% + \ifx\@empty\@translators \def\@translators{#1}% + \else\g@addto@macro\@translators{\and#1}\fi} +\let\@translators=\@empty +\def\@settranslators{\par\begingroup + \addvspace{6\p@\@plus9\p@}% + \hbox to\columnwidth{\hss\normalfont\normalsize + Translated by % + \andify\@translators \uppercasenonmath\@translators + \@translators} + \endgroup +} +\newcommand{\xandlist}[4]{\@andlista{{#1}{#2}{#3}}#4\and\and} +\def\@andlista#1#2\and#3\and{\@andlistc{#2}\@ifnotempty{#3}{% + \@andlistb#1{#3}}} +\def\@andlistb#1#2#3#4#5\and{% + \@ifempty{#5}{% + \@andlistc{#2#4}% + }{% + \@andlistc{#1#4}\@andlistb{#1}{#3}{#3}{#5}% + }} +\let\@andlistc\@iden +\newcommand{\nxandlist}[4]{% + \def\@andlistc##1{\toks@\@xp{\the\toks@##1}}% + \toks@{\toks@\@emptytoks \@andlista{{#1}{#2}{#3}}}% + \the\@xp\toks@#4\and\and + \edef#4{\the\toks@}% + \let\@andlistc\@iden} +\newcommand{\andify}{% + \nxandlist{\unskip, }{\unskip{} and~}{\unskip, and~}} +\def\and{\unskip{ }and \ignorespaces} +\def\maketitle{\par + \@topnum\z@ % this prevents figures from falling at the top of page 1 + \@setcopyright + \uppercasenonmath\shorttitle + \ifx\@empty\shortauthors \let\shortauthors\shorttitle + \else \andify\shortauthors \uppercasenonmath\shortauthors \fi + \@maketitle@hook + \begingroup + \@maketitle + \toks@\@xp{\shortauthors}\@temptokena\@xp{\shorttitle}% + \edef\@tempa{\@nx\markboth{\the\toks@}{\the\@temptokena}}\@tempa + \endgroup + \thispagestyle{firstpage}% this sets first page specifications + \c@footnote\z@ + \def\do##1{\let##1\relax}% + \do\maketitle \do\@maketitle \do\title \do\@xtitle \do\@title + \do\author \do\@xauthor \do\address \do\@xaddress + \do\email \do\@xemail \do\curraddr \do\@xcurraddr + \do\commby \do\@commby + \do\dedicatory \do\@dedicatory \do\thanks \do\thankses + \do\keywords \do\@keywords \do\subjclass \do\@subjclass +} +\def\@maketitle@hook{\global\let\@maketitle@hook\@empty} +\def\@maketitle{% + \normalfont\normalsize + \let\@makefnmark\relax \let\@thefnmark\relax + \ifx\@empty\@date\else \@footnotetext{\@setdate}\fi + \ifx\@empty\@subjclass\else \@footnotetext{\@setsubjclass}\fi + \ifx\@empty\@keywords\else \@footnotetext{\@setkeywords}\fi + \ifx\@empty\thankses\else \@footnotetext{% + \def\par{\let\par\@par}\@setthanks}\fi + \@mkboth{\@nx\shortauthors}{\@nx\shorttitle}% + \global\topskip42\p@\relax % 5.5pc " " " " " + \@settitle + \ifx\@empty\authors \else \@setauthors \fi + \ifx\@empty\@dedicatory + \else + \baselineskip18\p@ + \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}% + \global\dimen@i\prevdepth}\prevdepth\dimen@i + \fi + \@setabstract + \normalsize + \if@titlepage + \newpage + \else + \dimen@34\p@ \advance\dimen@-\baselineskip + \vskip\dimen@\relax + \fi +} % end \@maketitle +\AtBeginDocument{% + \@ifundefined{publname}{% + \let\publname\@empty + \let\@serieslogo\@empty + }{% + \def\@serieslogo{% + \vbox to\headheight{% + \parindent\z@ \fontsize{6}{7\p@}\selectfont + \noindent\publname\newline + \volinfo, \pageinfo \@dateposted\newline \@PII\endgraf + \vss + }% + }% + }% +} +\AtBeginDocument{% + \@ifundefined{volinfo}{% + \def\volinfo{% + Volume \currentvolume, Number \number0\currentissue, + \currentmonth\ \currentyear + }% + }{}% +} +\def\issueinfo#1#2#3#4{\def\currentvolume{#1}\def\currentissue{#2}% + \def\currentmonth{#3}\def\currentyear{#4}} +\issueinfo{00}% volume number + {0}% % issue number + {Xxxx}% % month + {XXXX}% % year +\def\copyrightinfo#1#2{\def\copyrightyear{#1}\def\copyrightholder{#2}} +\copyrightinfo{0000}{(copyright holder)} +\def\pagespan#1#2{\setcounter{page}{#1}% + \ifnum\c@page<\z@ \pagenumbering{roman}\setcounter{page}{-#1}\fi + \def\start@page{#1}\def\end@page{#2}} +\pagespan{000}{000} +\@ifundefined{pageinfo}{% + \def\pageinfo{% + \ifnum\start@page=\z@ + Pages 000--000 + \else + \ifx\start@page\end@page + Page \start@page + \else + Pages \start@page--\end@page + \fi + \fi}% +}{} +\@ifundefined{ISSN}{\def\ISSN{0000-0000}}{} +\newcommand\PII[1]{\def\@PII{#1}} +\PII{S \ISSN(XX)0000-0} +\newinsert\copyins +\skip\copyins=1.5pc % redefined in asl +\count\copyins=1000 % magnification factor, 1000 = 100% +\dimen\copyins=.5\textheight % maximum allowed per page +\def\@combinefloats{% + \ifx \@toplist\@empty \else \@cflt \fi + \ifx \@botlist\@empty \else \@cflb \fi + \ifvoid\copyins \else \@cflci \fi +} +\def\@cflci{% + \if\if@twocolumn \if@firstcolumn F\else T\fi\else T\fi T% + \setbox\@outputbox\vbox{% + \unvbox\@outputbox + \vskip\skip\copyins + \hbox to\columnwidth{% + \hss\vbox to\z@{\vss\unvbox\copyins}}}% + \fi +} +\newcommand{\abstractname}{Abstract} +\newcommand{\keywordsname}{Key words and phrases} +\newcommand{\subjclassname}{\textup{1991} Mathematics Subject + Classification} +\def\@tempb{amsart} +\ifx\@classname\@tempb + \newcommand{\datename}{\textit{Date}:} +\else + \newcommand{\datename}{Received by the editors} +\fi +\def\@setdate{\datename\ \@date\@addpunct.} +\def\@setsubjclass{% + {\itshape\subjclassname.}\enspace\@subjclass\@addpunct.} +\def\@setkeywords{% + {\itshape \keywordsname.}\enspace \@keywords\@addpunct.} +% \def\@setthanks{\def\thanks##1{\par##1\@addpunct.}\thankses} +\newbox\abstractbox +\def\@setabstract{\@setabstracta \global\let\@setabstract\relax} +\def\titlepage{% + \clearpage + \thispagestyle{empty}\setcounter{page}{0}} +\def\endtitlepage{\newpage} +\def\labelenumi{\theenumi.} +\def\theenumi{\@arabic\c@enumi} +\def\labelenumii{(\theenumii)} +\def\theenumii{\@alph\c@enumii} +\def\p@enumii{\theenumi} +\def\labelenumiii{(\theenumiii)} +\def\theenumiii{\@roman\c@enumiii} +\def\p@enumiii{\theenumi(\theenumii)} +\def\labelenumiv{(\theenumiv)} +\def\theenumiv{\@Alph\c@enumiv} +\def\p@enumiv{\p@enumiii\theenumiii} +\def\labelitemi{$\m@th\bullet$} +\def\labelitemii{\bfseries --}% \upshape already done by \itemize +\def\labelitemiii{$\m@th\ast$} +\def\labelitemiv{$\m@th\cdot$} +\newenvironment{verse}{\let\\\@centercr + \list{}{\itemsep\z@ \itemindent -1.5em\listparindent\itemindent + \rightmargin\leftmargin \advance\leftmargin 1.5em}\item[]% +}{% + \endlist +} +\let\endverse=\endlist % for efficiency +\newenvironment{quote}{% + \list{}{\rightmargin\leftmargin}\item[]% +}{% + \endlist +} +\let\endquote=\endlist % for efficiency +\def\trivlist{\parsep\parskip\@nmbrlistfalse + \@trivlist \labelwidth\z@ \leftmargin\z@ + \itemindent\z@ + \let\@itemlabel\@empty + \def\makelabel##1{\upshape##1}} +\renewenvironment{enumerate}{% + \ifnum \@enumdepth >3 \@toodeep\else + \advance\@enumdepth \@ne + \edef\@enumctr{enum\romannumeral\the\@enumdepth}\list + {\csname label\@enumctr\endcsname}{\usecounter + {\@enumctr}\def\makelabel##1{\hss\llap{\upshape##1}}}\fi +}{% + \endlist +} +\let\endenumerate=\endlist % for efficiency +\renewenvironment{itemize}{% + \ifnum\@itemdepth>3 \@toodeep + \else \advance\@itemdepth\@ne + \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}% + \list{\csname\@itemitem\endcsname}% + {\def\makelabel##1{\hss\llap{\upshape##1}}}% + \fi +}{% + \endlist +} +\let\enditemize=\endlist % for efficiency +\newcommand{\descriptionlabel}[1]{\hspace\labelsep \upshape\bfseries #1:} +\newenvironment{description}{\list{}{% + \advance\leftmargini6\p@ \itemindent-12\p@ + \labelwidth\z@ \let\makelabel\descriptionlabel}% +}{ + \endlist +} +\let\enddescription=\endlist % for efficiency +\let\upn=\textup +\AtBeginDocument{% + \settowidth\leftmargini{\labelenumi\hskip\labelsep}% + \advance\leftmargini by \normalparindent + \settowidth\leftmarginii{\labelenumii\hskip\labelsep}% + \advance\leftmarginii by 6pt + \settowidth\leftmarginiii{\labelenumiii\hskip\labelsep}% + \advance\leftmarginiii by 6pt + \settowidth\leftmarginiv{\labelenumiv\hskip\labelsep}% + \advance\leftmarginiv by 10pt + \leftmarginv=10pt + \leftmarginvi=10pt + \leftmargin=\leftmargini + \labelsep=5pt + \labelwidth=\leftmargini \advance\labelwidth-\labelsep + \@listi} +\newskip\listisep +\listisep\smallskipamount +\def\@listI{\leftmargin\leftmargini \parsep\z@skip + \topsep\listisep \itemsep\z@skip + \listparindent\normalparindent} +\let\@listi\@listI +\def\@listii{\leftmargin\leftmarginii + \labelwidth\leftmarginii \advance\labelwidth-\labelsep + \topsep\z@skip \parsep\z@skip \partopsep\z@skip \itemsep\z@skip} +\def\@listiii{\leftmargin\leftmarginiii + \labelwidth\leftmarginiii \advance\labelwidth-\labelsep} +\def\@listiv{\leftmargin\leftmarginiv + \labelwidth\leftmarginiv \advance\labelwidth-\labelsep} +\def\@listv{\leftmargin\leftmarginv + \labelwidth\leftmarginv \advance\labelwidth-\labelsep} +\def\@listvi{\leftmargin\leftmarginvi + \labelwidth\leftmarginvi \advance\labelwidth-\labelsep} +\def\@startsection#1#2#3#4#5#6{% +\if@noskipsec \leavevmode \fi +\par \@tempskipa #4\relax +\@afterindenttrue +\ifdim\@tempskipa<\z@\@tempskipa-\@tempskipa\@afterindentfalse\fi +\if@nobreak\everypar{}\else +\addpenalty\@secpenalty\addvspace\@tempskipa\fi +\@ifstar{\@dblarg{\@sect{#1}{\@m}{#3}{#4}{#5}{#6}}}% +{\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}% +} +% This is in asl code, mildly ammended ynm +%\def\@sect#1#2#3#4#5#6[#7]#8{% +% \edef\@toclevel{\ifnum#2=\@m 0\else\number#2\fi}% +% \ifnum #2>\c@secnumdepth \let\@secnumber\@empty +% \else \@xp\let\@xp\@secnumber\csname the#1\endcsname\fi +% \ifnum #2>\c@secnumdepth +% \let\@svsec\@empty +% \else +% \refstepcounter{#1}% +% \edef\@svsec{\ifnum#2<\@m +% \@ifundefined{#1name}{}{% +% \ignorespaces\csname #1name\endcsname\space}\fi +% \@nx\textup{% +% \@nx\@secnumfont +% \csname the#1\endcsname.}\enspace +% }% +% \fi +% \@tempskipa #5\relax +% \ifdim \@tempskipa>\z@ % then this is not a run-in section heading +% \begingroup #6\relax +% \@hangfrom{\hskip #3\relax\@svsec}{\interlinepenalty\@M #8\par}% +% \endgroup +% \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi +% \else +% \def\@svsechd{#6\hskip #3\@svsec +% \@ifnotempty{#8}{\ignorespaces#8\unskip +% \@addpunct.}% +% \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi +% }% +% \fi +% \global\@nobreaktrue +% \@xsect{#5}} +\let\@ssect\relax +\newcounter{part} +\newcounter{section} +\newcounter{subsection}[section] +\newcounter{subsubsection}[subsection] +\newcounter{paragraph}[subsubsection] +\renewcommand\thepart {\arabic{part}} +\renewcommand\theparagraph {\thesubsubsection.\arabic{paragraph}} +\setcounter{secnumdepth}{3} +\def\partname{Part} +\def\part{\@startsection{part}{0}% + \z@{\linespacing\@plus\linespacing}{.5\linespacing}% + {\normalfont\bfseries\raggedright}} +\def\specialsection{\@startsection{section}{1}% + \z@{\linespacing\@plus\linespacing}{.5\linespacing}% + {\normalfont\centering}} +\def\paragraph{\@startsection{paragraph}{4}% + \z@\z@{-\fontdimen2\font}% + \normalfont} +\def\subparagraph{\@startsection{subparagraph}{5}% + \z@\z@{-\fontdimen2\font}% + \normalfont} +\def\appendix{\par\c@section\z@ \c@subsection\z@ + \let\sectionname\appendixname + \def\thesection{\@Alph\c@section}} +\def\appendixname{Appendix} +\def\@Roman#1{\@xp\@slowromancap + \romannumeral#1@}% +\def\@slowromancap#1{\ifx @#1% then terminate + \else + \if i#1I\else\if v#1V\else\if x#1X\else\if l#1L\else\if + c#1C\else\if m#1M\else#1\fi\fi\fi\fi\fi\fi + \@xp\@slowromancap + \fi +} +\newcommand{\@pnumwidth}{1.6em} +\newcommand{\@tocrmarg}{2.6em} +\setcounter{tocdepth}{2} +\def\@starttoc#1#2{\begingroup + \par\removelastskip\vskip\z@skip + \@startsection{}\@M\z@{\linespacing\@plus\linespacing}% + {.5\linespacing}{\centering\scshape}{#2}% + \ifx\contentsname#2% + \else \addcontentsline{toc}{section}{#2}\fi + \makeatletter + \@input{\jobname.#1}% + \if@filesw + \@xp\newwrite\csname tf@#1\endcsname + \immediate\@xp\openout\csname tf@#1\endcsname \jobname.#1\relax + \fi + \global\@nobreakfalse \endgroup + \addvspace{32\p@\@plus14\p@}% + \let\tableofcontents\relax +} +\def\contentsname{Contents} +\def\listfigurename{List of Figures} +\def\listtablename{List of Tables} +\def\tableofcontents{\@starttoc{toc}\contentsname} +\def\listoffigures{\@starttoc{lof}\listfigurename} +\def\listoftables{\@starttoc{lot}\listtablename} +\AtBeginDocument{% + \@for\@tempa:=-1,0,1,2,3\do{% + \@ifundefined{r@tocindent\@tempa}{% + \@xp\gdef\csname r@tocindent\@tempa\endcsname{0pt}}{}% + }% +} +\def\@writetocindents{% + \begingroup + \@for\@tempa:=-1,0,1,2,3\do{% + \immediate\write\@auxout{% + \string\newlabel{tocindent\@tempa}{% + \csname r@tocindent\@tempa\endcsname}}% + }% + \endgroup} +\AtEndDocument{\@writetocindents} + +\let\indentlabel\@empty +\def\@tochangmeasure#1{\sbox\z@{#1}% + \ifdim\wd\z@>\csname r@tocindent\@toclevel\endcsname\relax + \@xp\xdef\csname r@tocindent\@toclevel\endcsname{\the\wd\z@}% + \fi +} +\def\@toclevel{0} +\def\@tocline#1#2#3#4#5#6#7{\relax + \ifnum #1>\c@tocdepth % then omit + \else + \par \addpenalty\@secpenalty\addvspace{#2}% + \begingroup \hyphenpenalty\@M + \@ifempty{#4}{% + \@tempdima\csname r@tocindent\number#1\endcsname\relax + }{% + \@tempdima#4\relax + }% + \parindent\z@ \leftskip#3\relax \advance\leftskip\@tempdima\relax + \rightskip\@pnumwidth plus1em \parfillskip-\@pnumwidth + #5\leavevmode\hskip-\@tempdima #6\relax + \hfil\hbox to\@pnumwidth{\@tocpagenum{#7}}\par + \nobreak + \endgroup + \fi} +\def\@tocpagenum#1{\hss{\mdseries #1}} +\def\@tocwrite#1{\@xp\@tocwriteb\csname toc#1\endcsname{#1}} +\def\@tocwriteb#1#2#3{% + \begingroup + \def\@tocline##1##2##3##4##5##6{% + \ifnum##1>\c@tocdepth + \else \sbox\z@{##5\let\indentlabel\@tochangmeasure##6}\fi}% + \csname l@#2\endcsname{#1{\csname#2name\endcsname}{\@secnumber}{}}% + \endgroup + \addcontentsline{toc}{#2}% + {\protect#1{\csname#2name\endcsname}{\@secnumber}{#3}}} +\def\l@section{\@tocline{1}{0pt}{1pc}{}{}} +\newcommand{\tocsection}[3]{% + \indentlabel{\@ifnotempty{#2}{\ignorespaces#1 #2.\quad}}#3} +\def\l@subsection{\@tocline{2}{0pt}{1pc}{5pc}{}} +\let\tocsubsection\tocsection +\def\l@subsubsection{\@tocline{3}{0pt}{1pc}{7pc}{}} +\let\tocsubsubsection\tocsection +\def\l@part{\@tocline{-1}{12pt plus2pt}{0pt}{}{\bfseries}} +\let\tocpart\tocsection +\def\l@chapter{\@tocline{0}{8pt plus1pt}{0pt}{}{}} +\let\tocchapter\tocsection +\let\tocappendix\tocchapter +\def\l@figure{\@tocline{0}{3pt plus2pt}{0pt}{}{}} +\let\l@table=\l@figure +\def\refname{References} % redefined in asl +\def\bibname{Bibliography} +\def\bibliographystyle#1{% + \if@filesw\immediate\write\@auxout + {\string\bibstyle{#1}}\fi + \def\@tempa{#1}% + \def\@tempb{amsplain}% + \def\@tempc{}% + \ifx\@tempa\@tempb + \def\@biblabel##1{##1.}% + \def\bibsetup{}% + \else + \def\bibsetup{\labelsep6\p@}% + \ifx\@tempa\@tempc + \def\@biblabel##1{}% + \def\bibsetup{\labelwidth\z@ \leftmargin24\p@ + \itemindent-24\p@ + \labelsep\z@ }% + \fi +\fi} +%\newenvironment{thebibliography}[1]{% +% \@xp\section\@xp*\@xp{\refname}% +% \normalfont\footnotesize\labelsep .5em\relax +% \renewcommand\theenumiv{\arabic{enumiv}}\let\p@enumiv\@empty +% \list{\@biblabel{\theenumiv}}{\settowidth\labelwidth{\@biblabel{#1}}% +% \leftmargin\labelwidth \advance\leftmargin\labelsep +% \usecounter{enumiv}}% +% \sloppy \clubpenalty\@M \widowpenalty\clubpenalty +% \sfcode`\.=\@m +%}{% +% \def\@noitemerr{\@latex@warning{Empty `thebibliography' environment}}% +% \endlist +%} +\def\newblock{} +\newcommand\MR[1]{\relax\ifhmode\unskip\spacefactor3000 \space\fi + \def\@tempa##1:##2:##3\@nil{% + \ifx @##2\@empty##1\else\textbf{##1:}##2\fi}% + \MRhref{#1}{MR \@tempa#1:@:\@nil}} +\newcommand\URL{\begingroup + \def\@sverb##1{% + \def\@tempa####1##1{\@URL{####1}\egroup\endgroup}% + \@tempa}% + \verb} +\let\URLhref\@gobble +\def\@URL#1{\URLhref{#1}#1} +\newif\if@restonecol +\def\theindex{\@restonecoltrue\if@twocolumn\@restonecolfalse\fi + \columnseprule\z@ \columnsep 35\p@ + \twocolumn[\@xp\section\@xp*\@xp{\indexname}]% + \thispagestyle{plain}% + \let\item\@idxitem + \parindent\z@ \parskip\z@\@plus.3\p@\relax + \footnotesize} +\def\indexname{Index} +\def\@idxitem{\par\hangindent 2em} +\def\subitem{\par\hangindent 2em\hspace*{1em}} +\def\subsubitem{\par\hangindent 3em\hspace*{2em}} +\def\endtheindex{\if@restonecol\onecolumn\else\clearpage\fi} +\def\indexspace{\par\bigskip} +\def\footnoterule{\kern-.4\p@ + \hrule\@width 5pc\kern11\p@\kern-\footnotesep} +\def\@makefnmark{\hbox{$\m@th^{\@thefnmark}$}} +\def\@makefntext{\indent\@makefnmark} +\long\def\@footnotetext#1{\insert\footins{% + \normalfont\footnotesize + \interlinepenalty\interfootnotelinepenalty + \splittopskip\footnotesep \splitmaxdepth \dp\strutbox + \floatingpenalty\@MM \hsize\columnwidth + \@parboxrestore \parindent\normalparindent \sloppy + \edef\@currentlabel{\p@footnote\@thefnmark}% + \@makefntext{\rule\z@\footnotesep\ignorespaces#1\unskip\strut\par}}} +\hfuzz=1pt \vfuzz=\hfuzz +\def\sloppy{\tolerance9999 \emergencystretch 3em\relax} +\setcounter{topnumber}{4} +\setcounter{bottomnumber}{4} +\setcounter{totalnumber}{4} +\setcounter{dbltopnumber}{4} +\renewcommand{\topfraction}{.97} +\renewcommand{\bottomfraction}{.97} +\renewcommand{\textfraction}{.03} +\renewcommand{\floatpagefraction}{.9} +\renewcommand{\dbltopfraction}{.97} +\renewcommand{\dblfloatpagefraction}{.9} +\setlength{\floatsep}{12pt plus 6pt minus 4pt} +\setlength{\textfloatsep}{15pt plus 8pt minus 5pt} +\setlength{\intextsep}{12pt plus 6pt minus 4pt} +\setlength{\dblfloatsep}{12pt plus 6pt minus 4pt} +\setlength{\dbltextfloatsep}{15pt plus 8pt minus 5pt} +\setlength{\@fptop}{0pt}% removed ``plus 1fil'' +\setlength{\@fpsep}{8pt}% removed ``plus 2fil'' +\setlength{\@fpbot}{0pt plus 1fil} +\setlength{\@dblfptop}{0pt}% removed ``plus 1fil'' +\setlength{\@dblfpsep}{8pt}% removed ``plus 2fil'' +\setlength{\@dblfpbot}{0pt plus 1fil} +\newcommand{\fps@figure}{tbp} +\newcommand{\fps@table}{tbp} +\newcounter{figure} +\def\@captionheadfont{\scshape} +\def\@captionfont{\normalfont} +\def\ftype@figure{1} +\def\ext@figure{lof} +\def\fnum@figure{\figurename\ \thefigure} +\def\figurename{Figure} +\newenvironment{figure}{% + \@float{figure}% +}{% + \end@float +} +\newcounter{table} +\def\ftype@table{2} +\def\ext@table{lot} +\def\fnum@table{\tablename\ \thetable} +\def\tablename{Table} +\newenvironment{table}{% + \@float{table}% +}{% + \end@float +} +\def\@floatboxreset{\global\@minipagefalse \centering} +\long\def\@makecaption#1#2{% + \setbox\@tempboxa\vbox{\color@setgroup + \advance\hsize-2\captionindent\noindent + \@captionfont\@captionheadfont#1\@xp\@ifnotempty\@xp + {\@cdr#2\@nil}{.\@captionfont\upshape\enspace#2}% + \unskip\kern-2\captionindent\par + \global\setbox\@ne\lastbox\color@endgroup}% + \ifhbox\@ne % the normal case + \setbox\@ne\hbox{\unhbox\@ne\unskip\unskip\unpenalty\unkern}% + \fi + \ifdim\wd\@tempboxa=\z@ % this means caption will fit on one line + \setbox\@ne\hbox to\columnwidth{\hss\kern-2\captionindent\box\@ne\hss}% + \else % tempboxa contained more than one line + \setbox\@ne\vbox{\unvbox\@tempboxa\parskip\z@skip + \noindent\unhbox\@ne\advance\hsize-2\captionindent\par}% +\fi + \ifnum\@tempcnta<64 % if the float IS a figure... + \addvspace\abovecaptionskip + \moveright\captionindent\box\@ne + \else % if the float IS NOT a figure... + \moveright\captionindent\box\@ne + \nobreak + \vskip\belowcaptionskip + \fi +\relax +} +\newskip\abovecaptionskip \abovecaptionskip=12pt \relax +\newskip\belowcaptionskip \belowcaptionskip=12pt \relax +\newdimen\captionindent \captionindent=3pc + +%%%%%%%%%%%%%%%%%%%%%%% code from amsthm.sty +\newcommand{\theoremstyle}[1]{% + \@ifundefined{th@#1}{% + \PackageWarning{amsthm}{Unknown theoremstyle `#1'}% + \thm@style{plain}% + }{% + \thm@style{#1}% + }% +} +\newtoks\thm@style +\thm@style{plain} +\newtoks\thm@bodyfont +\thm@bodyfont{\itshape} +\newtoks\thm@headfont +\thm@headfont{\bfseries} +\newtoks\thm@notefont +\thm@notefont{} +\newtoks\thm@headpunct +\thm@headpunct{.} +\newskip\thm@preskip \thm@preskip\topsep +\newskip\thm@postskip \thm@postskip\topsep +\renewcommand{\newtheorem}{\@ifstar{\@xnthm *}{\@xnthm \relax}} +\def\@xnthm#1#2{% + \let\@tempa\relax + \@xp\@ifdefinable\csname #2\endcsname{% + \global\@xp\let\csname end#2\endcsname\@endtheorem + \ifx *#1% unnumbered, need to get one more mandatory arg + \edef\@tempa##1{% + \gdef\@xp\@nx\csname#2\endcsname{% + \@nx\@thm{\@xp\@nx\csname th@\the\thm@style\endcsname}% + {}{##1}}}% + \else % numbered theorem, need to check for optional arg + \def\@tempa{\@oparg{\@ynthm{#2}}[]}% + \fi + }% + \@tempa +} +\def\@ynthm#1[#2]#3{% + \ifx\relax#2\relax + \def\@tempa{\@oparg{\@xthm{#1}{#3}}[]}% + \else + \@ifundefined{c@#2}{% + \def\@tempa{\@nocounterr{#2}}% + }{% + \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#2\endcsname}% + \toks@{#3}% + \@xp\xdef\csname#1\endcsname{% + \@nx\@thm{% + \let\@nx\thm@swap + \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi + \@xp\@nx\csname th@\the\thm@style\endcsname}% + {#2}{\the\toks@}}% + \let\@tempa\relax + }% + \fi + \@tempa +} +\def\@xthm#1#2[#3]{% + \ifx\relax#3\relax + \newcounter{#1}% + \else + \newcounter{#1}[#3]% + \@xp\xdef\csname the#1\endcsname{\@xp\@nx\csname the#3\endcsname + \@thmcountersep\@thmcounter{#1}}% + \fi + \toks@{#2}% + \@xp\xdef\csname#1\endcsname{% + \@nx\@thm{% + \let\@nx\thm@swap + \if S\thm@swap\@nx\@firstoftwo\else\@nx\@gobble\fi + \@xp\@nx\csname th@\the\thm@style\endcsname}% + {#1}{\the\toks@}}% +} +\let\@ythm\relax +\let\thmname\@iden \let\thmnote\@iden \let\thmnumber\@iden +\providecommand\@upn{\textup} +\def\thmhead@plain#1#2#3{% + \thmname{#1}\thmnumber{\@ifnotempty{#1}{ }#2}% + \thmnote{ {\the\thm@notefont(#3)}}} +\let\thmhead\thmhead@plain +\def\swappedhead#1#2#3{% + \thmnumber{#2}\thmname{\@ifnotempty{#2}{. }#1}% + \thmnote{ {\the\thm@notefont(#3)}}} +\let\thmheadnl\relax +\def\@begintheorem#1#2[#3]{% + \item[\normalfont % reset in case body font is abnormal + \hskip\labelsep + \the\thm@headfont + \thm@indent + \@ifempty{#1}{\let\thmname\@gobble}{\let\thmname\@iden}% + \@ifempty{#2}{\let\thmnumber\@gobble}{\let\thmnumber\@iden}% + \@ifempty{#3}{\let\thmnote\@gobble}{\let\thmnote\@iden}% + \thm@swap\swappedhead\thmhead{#1}{#2}{#3}% + \the\thm@headpunct]% + \@restorelabelsep + \thmheadnl % possibly a newline. + \ignorespaces} +\def\nonslanted{\relax + \@xp\let\@xp\@tempa\csname\f@shape shape\endcsname + \ifx\@tempa\itshape\upshape + \else\ifx\@tempa\slshape\upshape\fi\fi} +\def\swapnumbers{\edef\thm@swap{\if S\thm@swap N\else S\fi}} +\def\thm@swap{N}% +\let\@opargbegintheorem\relax +\def\th@plain{% + \itshape % body font +} +\def\th@definition{% + \normalfont % body font +} +\def\th@remark{% + \thm@headfont{\itshape}% + \normalfont % body font + \thm@preskip\topsep + \divide\thm@preskip\tw@ + \thm@postskip\thm@preskip +} +\def\@endtheorem{\endtrivlist\@endpefalse } +\newcommand{\newtheoremstyle}[9]{% + \@ifempty{#5}{\dimen@\z@skip}{\dimen@#5\relax}% + \ifdim\dimen@=\z@ + \toks@{#4\let\thm@indent\noindent}% + \else + \toks@{#4\def\thm@indent{\noindent\hbox to#5{}}}% + \fi + \def\@tempa{#8}\ifx\space\@tempa + \toks@\@xp{\the\toks@ \labelsep\fontdimen\tw@\font\relax}% + \else + \def\@tempb{\newline}% + \ifx\@tempb\@tempa + \toks@\@xp{\the\toks@ \labelsep\z@skip + \def\thmheadnl{% + \@noskipsectrue \global\@nobreaktrue + \everypar{\global\@minipagefalse \global\@newlistfalse + \global\@inlabelfalse \global\@nobreakfalse + {\setbox\z@\lastbox}\box\@labels\par + \nobreak\vskip-\parskip + \everypar{}\noindent}}% + }% + \else + \toks@\@xp{\the\toks@ \labelsep#8\relax}% + \fi + \fi + \begingroup \th@plain % to set \thm@preskip and postskip + \@defaultunits\@tempskipa#2\thm@preskip\relax\@nnil + \@defaultunits\@tempskipb#3\thm@postskip\relax\@nnil + \xdef\@gtempa{\thm@preskip\the\@tempskipa + \thm@postskip\the\@tempskipb\relax}% + \endgroup + \@temptokena\@xp{\@gtempa + \thm@headfont{#6}\thm@headpunct{#7}% + }% + \@ifempty{#9}{% + \let\thmhead\thmhead@plain + }{% + \@namedef{thmhead@#1}##1##2##3{#9}% + \@temptokena\@xp{\the\@temptokena + \@xp\let\@xp\thmhead\csname thmhead@#1\endcsname}% + }% + \@xp\xdef\csname th@#1\endcsname{\the\toks@ \the\@temptokena}% +} +\DeclareRobustCommand{\qed}{% + \ifmmode % if math mode, assume display: omit penalty etc. + \else \leavevmode\unskip\penalty9999 \hbox{}\nobreak\hfill + \fi + \quad\hbox{\qedsymbol}} +\newcommand{\openbox}{\leavevmode + \hbox to.77778em{% + \hfil\vrule + \vbox to.675em{\hrule width.6em\vfil\hrule}% + \vrule\hfil}} +%%%%%%%%%%%%%%%%%%%%%%% end of code from amsthm.sty + +\def\@swapped#1#2{#2% + \@ifnotempty{#1}{\@addpunct{.}\quad#1\unskip}} +\def\thmhead@plain#1#2#3{% + \thmname{#1}\thmnumber{\@ifnotempty{#1}{ }\@upn{#2}}% + \thmnote{ \textmd{\upshape(#3)}}} +\def\swappedhead@plain#1#2#3{% + \thmnumber{\@upn{#2}}\thmname{\@ifnotempty{#2}{. }#1}% + \thmnote{ \textmd{\upshape(#3)}}} +\def\th@plain{% + \let\thmhead\thmhead@plain \let\swappedhead\swappedhead@plain + \thm@preskip.5\baselineskip\@plus.2\baselineskip + \@minus.2\baselineskip + \thm@postskip\thm@preskip + \itshape +} +\def\th@definition{% + \let\thmhead\thmhead@plain \let\swappedhead\swappedhead@plain + \thm@preskip.5\baselineskip\@plus.2\baselineskip + \@minus.2\baselineskip + \thm@postskip\thm@preskip + \upshape +} +\def\th@remark{% + \thm@headfont{\itshape}% heading font bold + \let\thmhead\thmhead@plain \let\swappedhead\swappedhead@plain + \thm@preskip.5\baselineskip\@plus.2\baselineskip + \@minus.2\baselineskip + \thm@postskip\thm@preskip + \upshape +} +\if@compatibility +\let\@newpf\proof \let\proof\relax \let\endproof\relax +\newenvironment{pf}{\@newpf[\proofname]}{\qed\endtrivlist} +\newenvironment{pf*}[1]{\@newpf[#1]}{\qed\endtrivlist} +\fi +\def\nonbreakingspace{\unskip\nobreak\ \ignorespaces} +\def~{\protect\nonbreakingspace} +\def\@biblabel#1{\@ifnotempty{#1}{[#1]}} +\def\@cite#1#2{{% + \m@th\upshape\mdseries[{#1\if@tempswa, #2\fi}]}} +\@ifundefined{cite }{% + \expandafter\let\csname cite \endcsname\cite + \edef\cite{\@nx\protect\@xp\@nx\csname cite \endcsname}% +}{} +\def\fullwidthdisplay{\displayindent\z@ \displaywidth\columnwidth} +\edef\@tempa{\noexpand\fullwidthdisplay\the\everydisplay} +\everydisplay\expandafter{\@tempa} +\newcommand\seename{see also}% +\newcommand\see[2]{{\em \seename\/} #1}% +\newcommand\printindex{\@input{\jobname.ind}}% +\DeclareRobustCommand\textprime{\leavevmode + \raise.8ex\hbox{\check@mathfonts\the\scriptfont2 \char48 }} +\hyphenation{acad-e-my acad-e-mies af-ter-thought anom-aly anom-alies +an-ti-deriv-a-tive an-tin-o-my an-tin-o-mies apoth-e-o-ses +apoth-e-o-sis ap-pen-dix ar-che-typ-al as-sign-a-ble as-sist-ant-ship +as-ymp-tot-ic asyn-chro-nous at-trib-uted at-trib-ut-able bank-rupt +bank-rupt-cy bi-dif-fer-en-tial blue-print busier busiest +cat-a-stroph-ic cat-a-stroph-i-cally con-gress cross-hatched data-base +de-fin-i-tive de-riv-a-tive dis-trib-ute dri-ver dri-vers eco-nom-ics +econ-o-mist elit-ist equi-vari-ant ex-quis-ite ex-tra-or-di-nary +flow-chart for-mi-da-ble forth-right friv-o-lous ge-o-des-ic +ge-o-det-ic geo-met-ric griev-ance griev-ous griev-ous-ly +hexa-dec-i-mal ho-lo-no-my ho-mo-thetic ideals idio-syn-crasy +in-fin-ite-ly in-fin-i-tes-i-mal ir-rev-o-ca-ble key-stroke +lam-en-ta-ble light-weight mal-a-prop-ism man-u-script mar-gin-al +meta-bol-ic me-tab-o-lism meta-lan-guage me-trop-o-lis +met-ro-pol-i-tan mi-nut-est mol-e-cule mono-chrome mono-pole +mo-nop-oly mono-spline mo-not-o-nous mul-ti-fac-eted mul-ti-plic-able +non-euclid-ean non-iso-mor-phic non-smooth par-a-digm par-a-bol-ic +pa-rab-o-loid pa-ram-e-trize para-mount pen-ta-gon phe-nom-e-non +post-script pre-am-ble pro-ce-dur-al pro-hib-i-tive pro-hib-i-tive-ly +pseu-do-dif-fer-en-tial pseu-do-fi-nite pseu-do-nym qua-drat-ic +quad-ra-ture qua-si-smooth qua-si-sta-tion-ary qua-si-tri-an-gu-lar +quin-tes-sence quin-tes-sen-tial re-arrange-ment rec-tan-gle +ret-ri-bu-tion retro-fit retro-fit-ted right-eous right-eous-ness +ro-bot ro-bot-ics sched-ul-ing se-mes-ter semi-def-i-nite +semi-ho-mo-thet-ic set-up se-vere-ly side-step sov-er-eign spe-cious +spher-oid spher-oid-al star-tling star-tling-ly sta-tis-tics +sto-chas-tic straight-est strange-ness strat-a-gem strong-hold +sum-ma-ble symp-to-matic syn-chro-nous topo-graph-i-cal tra-vers-a-ble +tra-ver-sal tra-ver-sals treach-ery turn-around un-at-tached +un-err-ing-ly white-space wide-spread wing-spread wretch-ed +wretch-ed-ly Eng-lish Euler-ian Feb-ru-ary Gauss-ian +Hamil-ton-ian Her-mit-ian Jan-u-ary Japan-ese Kor-te-weg +Le-gendre Mar-kov-ian Noe-ther-ian No-vem-ber Rie-mann-ian Sep-tem-ber} +\def\calclayout{\advance\textheight -\headheight + \advance\textheight -\headsep + \oddsidemargin\paperwidth + \advance\oddsidemargin -\textwidth + \divide\oddsidemargin\tw@ + \ifdim\oddsidemargin<.5truein \oddsidemargin.5truein \fi + \advance\oddsidemargin -1truein + \evensidemargin\oddsidemargin + \topmargin\paperheight \advance\topmargin -\textheight + \advance\topmargin -\headheight \advance\topmargin -\headsep + \divide\topmargin\tw@ + \ifdim\topmargin<.5truein \topmargin.5truein \fi + \advance\topmargin -1truein\relax +} +\calclayout % initialize +\pagenumbering{arabic} +\thispagestyle{plain} + +%%%%%%%%%%%%%%%%%%%%%%% code from asl.sty + +\let\oldcal\mathcal % so mathcal is always available + +% To make truescript give math cal with CMR fonts +\def\truescript#1{\ifxfonts\truescriptalphabet{#1}% +\else\oldcal{#1}\fi} + +%------------------------------- Basic dimension defaults +\textheight=48pc % = 19.395 cm +\textwidth=29pc % = 12.227 cm +\headsep=12pt +\headheight=6pt +\topskip=12pt +\footskip=24pt % It is 12pt in amsart.cls +\parskip=0pt +\parindent=1em \normalparindent\parindent +\skip\copyins=2pc % .5pc larger than in amsart.cls + +\floatsep=\baselineskip % Make these smaller, still not rigid +\textfloatsep=\floatsep % occassionally they need to be set rigid +\intextsep=\floatsep + +% These have been tighter, but always needed fixing. +% Here are the values in amsart: +% \floatsep 24pt plus 2pt minus 2pt +% \textfloatsep 24pt plus 2pt minus 2pt +% \intextsep 24pt plus 2pt minus 2pt + +\calclayout % initialize again + +% Fudgefactor, from jsl-l +\advance\textheight by.5\normalbaselineskip +\divide\textheight by\normalbaselineskip +\multiply\textheight by\normalbaselineskip + +%------------------------------- Logo and Copyright ifs + +\newif\ifLogoOn +\LogoOnfalse +\def\LogoOn{\global\LogoOntrue} + +% Set the fontsize of the logo larger for mainsize 11 or more +\def\@logofontsize{\ifnum\@mainsize=10 \fontsize{6}{9\p@} + \else \fontsize{7}{10\p@}\fi}% + +\newif\ifCopyRight +\CopyRightfalse +\def\CopyRightOn{\global\CopyRighttrue} + + +%------------------------------- The default is JSL with CMR +% fonts and no logo or copyright + +\def\ISSN{0022-4812} +\def\journalname{The Journal of Symbolic Logic} + +% The following forms are used to compute the length of the logobox +\def\shortjournalname{The Journal of Symbolic Logic} +\def\longjournalname{The \hfil Journal \hfil of \hfil Symbolic \hfil Logic} +\AtBeginDocument{\ifLogoOn\@setlogo\fi} + +%------------------------------- jsl option + +\DeclareOption{jsl}{% +\LogoOn +\CopyRightOn +\def\jslname{this \textsc{Journal}} % for the bibliography +} % End \DeclareOption{jsl} + +%------------------------------- xfonts option, uses the xgt fonts +\newif\ifxfonts +\xfontsfalse + +\DeclareOption{xfonts}{% +\xfontstrue +\renewcommand{\sfdefault}{cmss} +\renewcommand{\rmdefault}{xgt} +\renewcommand{\ttdefault}{cmtt} + +\DeclareMathAlphabet{\mathrm}{OT1}{xgt}{m}{n} +\DeclareMathAlphabet{\mathit}{OT1}{xgt}{m}{it} +\DeclareMathAlphabet{\mathbf}{OT1}{xgt}{b}{it} + +\DeclareSymbolFont{letters}{OML}{xgt}{m}{it} +\SetSymbolFont{letters}{bold}{OML}{xgt}{b}{it} +\DeclareMathAlphabet{\truescriptalphabet}{OT1}{xgt}{m}{scr} + +\SetSymbolFont{operators}{normal}{OT1}{xgt}{m}{n} +\SetSymbolFont{operators}{bold}{OT1}{xgt}{b}{n} + +% Must redefine \boldsymbol to correct an error in the .vf file +\let\oldboldsymbol=\boldsymbol +\def\boldsymbol#1{\ifx#1\Phi\oldboldsymbol{\Ypsilon}% +\else\ifx#1\Psi\oldboldsymbol{\Phi}% +\else\ifx#1\Ypsilon\oldboldsymbol{\Psi}\else\oldboldsymbol{#1}% +\fi\fi\fi} + +% This allows the script font with all options +\newcommand{\script}{\normalfont\fontshape{scr}\selectfont} + +% Use the fontshape th for theorems +% This font uses italicizes all but punctuation and numerals +\DeclareRobustCommand\xitshape{\fontshape{th}\selectfont} +\def\th@plain{\xitshape} + +% For use in \textth{...} outside theorems (rare), Brian +\DeclareTextFontCommand{\textth}{\xitshape} + +% Fix the lack of \l in small caps in the xgt fonts +% by using the CMR small caps \l +\def\@sc{sc} +\let\@polishl=\l +\def\l{\ifx\f@shape\@sc \raisebox{.06ex}{\fontfamily{cmr}\selectfont% +\@polishl}\else\@polishl\fi} + +}% end \DeclareOption{xfonts} + +%------------------------------- xjsl option, jsl with Monotype Times fonts + +\DeclareOption{xjsl}{% +\ExecuteOptions{jsl,xfonts} +\let\mathcal=\truescriptalphabet % \mathcal comes out script + % \oldcal gives cal +}% end \DeclareOption{xjsl} + +%---------------------------------- bsl option, bsl with cmr fonts + +\DeclareOption{bsl}{% +% We want Option 11pt to be executed. + \def\@mainsize{11}\def\@ptsize{1}% + \def\@typesizes{% + \or{6}{7}\or{7}{8}\or{8}{10}\or{9}{11}\or{10}{12}% + \or{\@xipt}{13}% normalsize + \or{\@xiipt}{14}\or{\@xivpt}{17}\or{\@xviipt}{20}% + \or{\@xxpt}{24}\or{\@xxvpt}{30}}% + \normalsize \linespacing=\baselineskip +\def\ISSN{1079-8986} +\def\journalname{The Bulletin of Symbolic Logic} +\def\shortjournalname{The Bulletinof SymbolicLogic} +\def\longjournalname{The \hfil Bulletin \hfil of \hfil Symbolic \hfil +Logic} +\def\bslname{this \textsc{Bulletin}} % for the bibliography +} % end \DeclareOption{bsl} + +%------------------------------- xbsl option, bsl with Monotype Times fonts + +\DeclareOption{xbsl}{% +\ExecuteOptions{xfonts,bsl} +\LogoOn +\CopyRightOn +} % end \DeclareOption{xbsl} + +%------------------------------- meeting option + +\DeclareOption{meeting}{% +\ExecuteOptions{bsl} +\LogoOn +\CopyRightOn +% Default sizes, initialization. +% Assumes that we are setting at 11pt. +\def\AbstractsOn{% + \normalfont + \let\large=\small % This is 10/12% + \let\normalsize=\Small % {9}{11\p@} + \let\small=\scriptsize % This is OK, 8/10 + \let\footnotesize=\scriptsize % This is OK, 8/10 + \let\scriptsize=\Tiny % We want this to be 6/7 + \fontsize{9}{11\p@}\selectfont % the normalsize + \@adjustvertspacing +} +\AtBeginDocument{\AbstractsOn} + +\widowpenalty=0 % This is needed, to help with pagination +\clubpenalty=0 + +% The subtitle is, typically, "cosponsored by ..." +% but it may be different, and it may have math in it +% We put it where the Authors go +% but allowing math and not affecting the headings + +\def\subtitletext{} +\def\subtitle#1{\gdef\subtitletext{\uppercase{#1}}} + +% Here there are differences in vertical space from amsart +\def\@setsubtitle{% + \begingroup + \trivlist +\centering\fontsize{8}{9\p@}\selectfont % Fontsize from jsl-l +\@topsep36\p@\relax + \advance\@topsep by -2.5\baselineskip + \item\relax +\subtitletext + \endtrivlist + \endgroup +\vskip -0.5\baselineskip +} + +\def\location#1{\vskip 14pt + {\gdef\@location{, #1} % used by aslprod.sty +\normalfont\large\bfseries\centering #1\endgraf}\nobreak + \vskip 14\p@} + +\def\conferencehead#1{\vskip 14pt + {\normalfont\large\bfseries\centering #1\endgraf}\nobreak + \vskip 5\p@} + +% Repeat \@maketitle from amsart.cls to change one skip. +% and to replace setauthors by setsubtitle +\def\@maketitle{% + \normalfont\normalsize + \let\@makefnmark\relax \let\@thefnmark\relax + \ifx\@empty\@date\else \@footnotetext{\@setdate}\fi + \ifx\@empty\@subjclass\else \@footnotetext{\@setsubjclass}\fi + \ifx\@empty\@keywords\else \@footnotetext{\@setkeywords}\fi + \ifx\@empty\thankses\else \@footnotetext{% + \def\par{\let\par\@par}\@setthanks}\fi + \@mkboth{\@nx\shorttitle}{\@nx\shorttitle}% + \global\topskip42\p@\relax % 5.5pc " " " " " + \@settitle +\ifx\@empty\subtitletext + \else + \@setsubtitle +\fi + \ifx\@empty\@dedicatory + \else + \baselineskip18\p@ + \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}% + \global\dimen@i\prevdepth}\prevdepth\dimen@i + \fi + \@setabstract + \normalsize + \if@titlepage + \newpage + \else +% \dimen@34\p@ \advance\dimen@-\baselineskip % (in amsart.csl) + \dimen@14\p@ \advance\dimen@-\baselineskip % (from jsl-l) + \vskip\dimen@\relax + \fi +} % end \@maketitle + +\def\blurbsig#1#2{\vspace{1pc}{\noindent\hfill #1\endgraf + \noindent\hfill {\sc #2}}\vskip\baselineskip} + +% Resetting counters within each abstract +\def\absauth#1{% + \setcounter{equation}{0}\setcounter{abscounter}{0} + \vspace{8pt}\noindent + {\llap{\raisebox{.3ex}{\small$\blacktriangleright$\hskip\labelsep}}% + \uppercase{#1}}\unskip,} + +% For proofs, redefine \absauth +\let\standardabsauth=\absauth +\def\proofcopy{\def\absauth{\newpage\standardabsauth}} + +\def\meetau#1{\endgraf#1\unskip,} +\def\meettitle#1{{\it #1}\unskip.} +% For the cases where the title ends with punctuation: +\def\noperiodmeettitle#1{{\it #1}\unskip} +\def\meetemail#1{\endgraf\noindent{\it E-mail}: {\tt #1}.} +\def\affil#1{\endgraf\noindent{#1.}} +\def\msort#1{\endgraf\noindent{\it Sorting}: #1.} + +\def\article#1{{\it #1}\unskip.\hspace{1em}} + +% Rarely, article names end with their own punctuation: +\def\noperiodarticle#1{{\it #1}\unskip\hspace{1em}} + +% Even more rarely, the period at the end of the article following the +% \hspace jumps to another line. +\def\nospacearticle#1{{\it #1.}} + +% No title or spacing for REFERENCES +% and use hand-set bibliography +\oldbib +%\let\cite\oldcite +%\let\@citex\old@citex + +\renewenvironment{thebibliography}[1]{% + \vskip 2pt + \def\and{{\normalfont \lowercase{and}\ }}% + \list{[\@arabic\c@enumiv]\ }{% + \leftmargin\z@ \labelwidth\z@ \itemindent12\p@ + \labelsep\z@ \usecounter{enumiv}}% + \sloppy \clubpenalty4000\relax \widowpenalty\clubpenalty + \sfcode`\.\@m} + {\endlist} + +% Fake theorem, to fix the theorem numbering, +% so that it starts anew with each abstract. + +\newtheorem{abscounter}{abscoutner} + +\newtheorem{theorem}[abscounter]{Theorem} +\newtheorem{lemma}[abscounter]{Lemma} +\newtheorem{corollary}[abscounter]{Corollary} + +\theoremstyle{definition} +\newtheorem{definition}[abscounter]{Definition} +\newtheorem{example}[abscounter]{Example} + +\theoremstyle{plain} % 1/25/00, in case more theorems are introduced +} % end \DeclareOption{meeting} + +%-------------------------------------- xmeeting option, with xgt fonts + +\DeclareOption{xmeeting}{% +\ExecuteOptions{xbsl,meeting} +} % end DeclareOption + +%------------------------------- notices option + +\DeclareOption{notices}{% +\ExecuteOptions{bsl} +\LogoOn +\CopyRightfalse + +\AtBeginDocument{\Notices} +\papertype{end notices} +% \Notices is defined globally, as it is used in the covers + +% Title is not set, may be set to anything. + +\def\marginmark#1{% +\global\let\email=\nemail % sets this after \maketitle +\global\let\urladdr=\nemail % add so this makes sense +\vskip 4pt\noindent\llap{\raisebox{.3ex}% +{$\bullet$\hskip\labelsep}}{\sc #1}} + +\def\meetingdates#1{{\em #1,}} + +%% This command prints location information (if there is any) in italic +%% and adds a period at the end: +\def\meetingplace#1{{\em #1.}} + +% Repeat \@maketitle from amsart.cls to change one skip. +\def\@maketitle{% + \normalfont\normalsize + \let\@makefnmark\relax \let\@thefnmark\relax + \ifx\@empty\@date\else \@footnotetext{\@setdate}\fi + \ifx\@empty\@subjclass\else \@footnotetext{\@setsubjclass}\fi + \ifx\@empty\@keywords\else \@footnotetext{\@setkeywords}\fi + \ifx\@empty\thankses\else \@footnotetext{% + \def\par{\let\par\@par}\@setthanks}\fi + \@mkboth{\@nx\shortauthors}{\@nx\shorttitle}% + \global\topskip42\p@\relax % 5.5pc " " " " " + \@settitle + \ifx\@empty\@dedicatory + \else + \baselineskip18\p@ + \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}% + \global\dimen@i\prevdepth}\prevdepth\dimen@i + \fi + \@setabstract + \normalsize + \if@titlepage + \newpage + \else +% \dimen@34\p@ \advance\dimen@-\baselineskip % (in amsart.csl) + \dimen@24\p@ \advance\dimen@-\baselineskip % (from jsl-l, adjusted) + \vskip\dimen@\relax + \fi +} % end \@maketitle + +% The macros for \nemail are in the general macros below, +% because they involve changing catcodes and this does not work +% with the \ProcessOptions command. +% Here we have only the re-definition for the notices option +% \email=\nemail is set in the \marginmark command +% + +}% end \DeclareOption{notices} + +%------------------------------- xnotices option, with the xgt fonts + +\DeclareOption{xnotices}{% +\ExecuteOptions{notices} +\ExecuteOptions{xfonts} +} % end \DeclareOption + +%------------------------------- reviews option, with the cmr fonts + +\DeclareOption{reviews}{% +\ExecuteOptions{bsl} +\LogoOn +\CopyRightOn + +\title{Reviews} +\papertype{reviews} +\typesetter{H. Enderton} + +% Setting the sizes + +\def\BookRev{% + \normalfont + \let\large=\small % 10/12 + \let\normalsize=\Small % 9/11 + \let\small=\SMALL % 8/10 + \let\footnotesize=\SMALL % 8/10 + \let\scriptsize=\Tiny % 6/7 + \fontsize{9}{11\p@}\selectfont % the normalsize + \@adjustvertspacing +} +\AtBeginDocument{\BookRev} + +\newcommand{\revaddress}[1]{\g@addto@macro\localaddresses{#1. }}% + +\newcommand{\revemail}[1]{\if#1\@empty \else% +\g@addto@macro\localaddresses{% +\unskip\nobreak\hfil\penalty50% +\hskip .5em\nobreak +\hbox{#1. }\hspace*{\fill}}\fi% +\g@addto@macro\localaddresses{\par}} + +\newenvironment{review}{\vskip 15pt plus 1pt minus 1pt% +\let\localaddresses\@empty% +\let\reviewers\@empty% +\let\revreviewers\@empty\let\@toctitle\@empty% +\let\earlysignature\@empty% +\let\@titleindex=0% +\let\@reviewtitle\@empty}% +{\if\earlysignature X\else\signature\fi% +\if\@toctitle\@empty\tocerror\fi} + +% Macros to place the signature correctly + +\def\signature{\gdef\earlysignature{X}\@doreviewers\par% +\localaddresses} +% \signature places the signature where it occurs +% (rather than at the end of the review) + +%\def\@doreviewers{% +%\andify\reviewers% +%\unskip\nobreak\hfil\penalty50% +%\hskip2em\hbox{}\nobreak\hfill% +%\hbox{\sc \reviewers}\hspace*{1em}} + +\def\@doreviewers{% +\andify\reviewers% +\par\rightline{\textsc{\reviewers}\hspace*{1em}}} + +% error message - redo to make better +\def\tocerror{\typeout{^^J% +No toctitle!^^J\stop}} + +\newcommand{\reviewer}[3][]{% + \ifx\@empty\reviewers + \gdef\reviewers{#2}% + \else + \g@addto@macro\reviewers{\protect\and#2}% + \fi +\ifx\@empty\revreviewers +\gdef\revreviewers{#3}% +\gdef\firstreviewer{#3} +\else +\g@addto@macro\revreviewers{\and#3}% +\fi +} + +\def\toctitle#1{\gdef\@toctitle{#1}} +\def\reviewtitle#1{\gdef\@titleindex{1}\gdef\@reviewtitle{#1}} + +\newcommand{\makereviewheading}[1][]% +{% \ydowrite in reprod.sty +{\noindent\large\if\@titleindex0% +{{\bfseries \@toctitle}\hskip 1em{#1}\vskip 3pt}% +\else\if\@reviewtitle\empty % +\else{{\bfseries \@reviewtitle}}\fi\fi}} + +% To put some extra space between the preamble and the reviews +% we introduce a command for the preamble + +\long\def\revinstructions#1{{#1}\vskip 5pt plus 1pt minus 1pt} + + +\def\horspace{\hspace{.3em}} % to test and control the spaces + +\def\revau#1{% % same as anau, for compatibility + \def\and{{\normalfont and\ }}% + \vskip 0pt plus 1pt minus 1pt + {\sc #1}\unskip.\horspace} + +\def\anau#1{% + \def\and{{\normalfont and\ }}% + \vskip 0pt plus 1pt minus 1pt + {\sc #1}\unskip.\horspace} + +\renewcommand{\andify}{% + \nxandlist{\unskip, }{\unskip{} {\normalfont\lowercase{and}}~}% +{\unskip, {\normalfont\lowercase{and}}~}} + +\def\and{\unskip{ }\mbox{\normalfont \lowercase{and}} \ignorespaces} + + +\def\book#1{{\bfseries\itshape #1}\unskip{\bfseries\itshape.}\quad} + +\def\article#1{{\it #1}\unskip.\horspace} + +\def\journal#1{{\bfseries\itshape #1}\unskip, } + +% Repeat \@maketitle from amsart.cls to change one skip. +\def\@maketitle{% + \normalfont\normalsize + \let\@makefnmark\relax \let\@thefnmark\relax + \ifx\@empty\@date\else \@footnotetext{\@setdate}\fi + \ifx\@empty\@subjclass\else \@footnotetext{\@setsubjclass}\fi + \ifx\@empty\@keywords\else \@footnotetext{\@setkeywords}\fi + \ifx\@empty\thankses\else \@footnotetext{% + \def\par{\let\par\@par}\@setthanks}\fi + \@mkboth{\@nx\shortauthors}{\@nx\shorttitle}% + \global\topskip42\p@\relax % 5.5pc " " " " " + \@settitle + \ifx\@empty\@dedicatory + \else + \baselineskip18\p@ + \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}% + \global\dimen@i\prevdepth}\prevdepth\dimen@i + \fi + \normalsize + \if@titlepage + \newpage + \else +% \dimen@34\p@ \advance\dimen@-\baselineskip % (in amsart.csl) + \dimen@24\p@ \advance\dimen@-\baselineskip % (from jsl-l, adjusted) + \vskip\dimen@\relax + \fi +} % end \@maketitle + +% For the production version +\InputIfFileExists{revprod.sty}{} + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Follow Herb's macros + +%-------- Font changes + +\def\bi{\bfseries\itshape} +\def\lss{\sf} +\def\bss{\sf\bfseries} + +%-------- + +\hyphenation{Eng-lish} +\abovedisplayskip=2pt plus2pt +\belowdisplayskip=2pt plus2pt + +%%%%%%%%%%%%%%%%%% revlocal.tex %%%%%%%%%%%%%%%%%%%%%%%%%%% +% Note: \normalfont does what \normalshape did before +\def\Box{\square} %\square is defined in JSL stylefile; it does not +\def\Boxs{\square\hskip 0.1em} %reduce properly in scriptstyle. +\def\Diamond{\lozenge} +\def\lor{\mathbin{\mbox{\boldmath$\vee$}}} +\def\ifthen{\mathbin{\mbox{\boldmath$\supset$}}} % horseshoe +\def\land{\mathbin{\mbox{\boldmath$\wedge$}}} +\def\lnot{\mbox{\boldmath$\sim\mskip -2.0mu$}} %9/98 +\def\amp{\mathbin{\mbox{\&}}} +\def\turnStile{\mathbin{{|\hskip -0.47em\sim}}} % symbol |~ "snake" +\def\simr{\raise 0.5ex\hbox{$\sim$}} +\def\preorder{\underset\simr\to\sqsubset} +\def\sqr#1#2{{\vbox % was \vcenter %%from Texbook p. 320 + {\hrule height.#2pt + \hbox{\vrule width.#2pt height#1pt \kern#1pt + \vrule width.#2pt} + \hrule height.#2pt}}} +%first number is size in pts, second is thickness in tenths of pts +\def\soft{$\,^\prime\!$} %for use in italics +\def\lag{\vbox{\offinterlineskip + \hbox{$\scriptscriptstyle\langle\!\langle$}\kern-0.1pt} + \hskip -0.6pt plus.3pt minus.2pt~ \hskip -2.7pt} +\def\rag{~\hskip -2.7pt plus.3pt minus.2pt\vbox{\offinterlineskip + \hbox{$\scriptscriptstyle\rangle\!\rangle$}\kern-0.1pt}} +\def\smirk{\mathrel + {\,\mid\hskip -2.1ex\lower 1ex\hbox{$\smile$}\hskip 0.1ex }} +\def\notsmirk{\mathrel{\smirk\hskip -2.5ex / \hskip 0.5ex}} +\def\ltx{La{\hskip -0.9pt}T{\hskip -0.8pt}e{\hskip -0.6pt}X} %LaTeX +\def\sqdot{\mathbin{\vrule width0.3ex height0.3ex depth0ex}} %square dot +\def\monus{-\kern -1.6ex{\raise1.0ex\hbox{.}}\kern 1.3ex} +\def\supmonus{-\kern -1.1ex{\raise0.7ex\hbox{.}}\kern 0.5ex} +\def\polishaccent{{\family{cmr}\shape{n}\selectfont\char32}} +\def\smcl{\rlap{\polishaccent}l} %small cap Polish L + +\def\fishhook{\mathbin{{\vrule width0.4ex height0.80ex %%for eight- + depth-0.62ex}\!{\text{\sf 3}}}} %see 60:3 p 1009 %%point +\def\boldsquare{\hspace{0.1em} + \mathchoice\sqr{4.8}4\sqr{4.8}4\sqr{3.6}3\sqr{2.7}2\hspace{0.1em}} + +%%end of revlocal.tex%%%%%%%%%% + +}% end \DeclareOption + +%--------------------------------------------- xreviews option, with xfonts + +\DeclareOption{xreviews}{% +\ExecuteOptions{xfonts,reviews} +}% end \DeclareOption + +%--------------------------------------------- obituary option +% Typeset obits exactly as if they were articles +% except for the following: +% (1) Start with \documentclass[obituary]{amsart} +% or \documentclass[xobituary]{amsart} +% (2) Enter the command +% \subject{Smith, George W.} +% of the person honored, in this "reversed" way. +% (4) The author(s) is typeset at the end of the paper (\rightline) +% If you want it at some place earlier, put the command +% \signature at the place where you want it +% (This is sometimes needed if there are references, +% and the signature comes before the references.) +% +% The format ends up exactly as in articles, except that +% addresses and email addresses will not print, +% and so they need not be set. (They do not hurt.) + +\DeclareOption{obituary}{% +\ExecuteOptions{bsl} + +% Make sure that address, email do not print +\AtBeginDocument{\let\addresses\@empty \recdate{}} + +% Redefine \author so that the names come at the end +\let\obitauthors\@empty +\renewcommand{\author}[2][]{% + \ifx\@empty\obitauthors + \gdef\shortobitauthors{#1}\gdef\obitauthors{#2}% + \else + \g@addto@macro\shortobitauthors{\and#1}% + \g@addto@macro\obitauthors{\and#2}% + \fi +} +\renewcommand{\andify}{% + \nxandlist{\unskip, }{\unskip{} {\normalfont\lowercase{and}}~}% +{\unskip, {\normalfont\lowercase{and}}~}} + +\def\and{\unskip{ }\mbox{\normalfont \lowercase{and}} \ignorespaces} + +% Macros to place the signature correctly +\let\earlysignature\@empty +\def\signature{\gdef\earlysignature{@ok}\@doobitauthors} +\AtEndDocument{\ifx\@empty\earlysignature\@doobitauthors\fi} +\def\@doobitauthors{\par\bigskip\noindent% +\andify\obitauthors +\rightline{\sc \obitauthors}} + +} % end \DeclareOption{obituary} + +%------------------------------- xobituary option +\DeclareOption{xobituary}{% +\ExecuteOptions{xfonts,obituary} +\LogoOn +\CopyRightOn +} % end \DeclareOption{xobituary} + +%--------------------------------------------- errata option +% Follow notices style +\DeclareOption{errata}{% +\LogoOnfalse +\CopyRightfalse +\AtBeginDocument{\Notices} +% must specify xjsl or xbsl along with this, to make the difference +% After the \maketitle use +% \centerline{\uppercase{volume 3}} +% \bigskip +% Page 230. ... +% and then a \medskip separating the different errata +} % end option errata + +%------------------------------------------- conference option + +\DeclareOption{conference}{% +% Use the size of LC '98 +% and otherwise the JSL defaults +\textwidth=11.9cm +\textheight=18.6cm +%\let\ps@firstpage=\ps@empty +% Redefine \ps@plain, used on the first page +% to give identification and copyright + +% These must be defined for each conference +\def\copyrightyear{1000} +\def\confname{Meeting} + +% We set the Conference name and copyright ionfo +% using \maketitle + +\let\oldmaketitle\maketitle +\def\maketitle{\oldmaketitle\confinfo} + +\long\def\confinfo{% +\begin{table}[b]% +\vbox to -\footskip{% +\begin{minipage}[t]{\textwidth} +\fontsize{7}{8pt}\selectfont% +\vskip -\baselineskip +\textbf{\confname}\\ +\copyright\ \copyrightyear, +\textsc{Association for Symbolic Logic} +\end{minipage}} +\end{table} +} + +} % End DeclareOption conference + +%----------------------------------------- option xconference + +\DeclareOption{xconference}{% +\ExecuteOptions{conference,xfonts} +} + +%----------------------------------------- option endnotes + + +%*********************** Changes from amsart ***********************% + +% The changes from amsart are noted and commented out + +%------------------------------------ email for notices + +% These commands are also used in the covers, +% so they are defined for all options. + +\def\Notices{% + \normalfont + \let\normalsize=\Small % 9/11, per jsl-l + \let\small=\scriptsize % 8/10, per jsl-l + \let\scriptsize=\Tiny % 6/7,per jsl-l + \fontsize{9}{11\p@}\selectfont % the normalsize + \@adjustvertspacing} + +\def\weakdot{.\linebreak[0]} +\def\weakat{@\linebreak[0]} +\def\weakcolon{:\linebreak[0]} +\def\weakslash{/\linebreak[0]} + +\newcommand{\emailcatcodes}{% + \catcode`\:=\active + \catcode`\.=\active + \catcode`\@=\active + \catcode`\/=\active +} + +{\emailcatcodes +\immediate \global\let:=\weakcolon +\immediate \global\let.=\weakdot +\immediate \global\let@=\weakat +\immediate \global\let/=\weakslash +} + +%% The catcodes are decided when the argument is read. Thus we need +%% to set the catcodes before reading the argument to \nemail. + +%\def\nemail{\begingroup\emailcatcodes\def~{$\sim$}\xemail} +\def\nemail{\begingroup\emailcatcodes\def~{\urltilde}\xemail} +%% The group ended here was started by the \nemail command: +\def\xemail#1{\tt#1\endgroup} + +% \email=\nemail is implemented by the \marginmark command, +% after \maketitle + +%-------------------------------- Thanks + +% Skip the . in \thanks, to allow for other punctuation (rare). +%(amsart) \def\@setthanks{\def\thanks##1{\par##1\@addpunct.}\thankses} +\def\@setthanks{\def\thanks##1{\par##1}\thankses} + +%-------------------------------- Maketitle + +% Title not in boldface +\def\@settitle{\begin{center}% + \baselineskip14\p@\relax +%(amsart) \bfseries +\fontsize{10}{13\p@}\selectfont % At 11pt, it is still 10pt, by jsl-l +\uppercasenonmath\@title + \@title + \end{center}% +} + +% Vertical space adjustment, per jsl-l +\def\@setabstracta{% + \ifvoid\abstractbox + \else +%(amsart) \skip@20\p@ \advance\skip@-\lastskip + \skip@36\p@ \advance\skip@-\lastskip % to match the top + \advance\skip@-.5\baselineskip % adjust, to match + \advance\skip@-\baselineskip \vskip\skip@ + \box\abstractbox + \prevdepth\z@ % because \abstractbox is a vtop + \fi +} + +% Vertical space adjustment and font fixing +\def\@setauthors{% + \begingroup + \trivlist +%(amsart) \centering\footnotesize % Fix, per jsl-l +% 1998: follow amsart with footnotesize +% 1998: which is 8/10 at 10pt and 9/11 at 11pt +\centering\fontsize{7}{8\p@}\selectfont +%(amsart) \@topsep30\p@\relax +\@topsep36\p@\relax % increase, per jsl-l + \advance\@topsep by -\baselineskip + \item\relax + \andify\authors +\uppercasenonmath\authors + \authors + \endtrivlist + \endgroup +} + +%-------------------------------- Topmatter + +\def\recdate#1{\def\@date{#1}\def\@setdate{#1}} + +% Default commands for the topmatter +% These are reset automatically in production + +% They need not be entered +\def\copyrightyear{0000} +\def\copyrightyearmodC{00} +\def\paperID{0000-0000} +\def\copyrightprice{\$00.00} +\def\currentvolume{00} +\def\currentnumber{0} +\def\currentyear{0000} +\def\currentmonth{XXX} + +%-------------------------------- Address, email, url + +% We enrich amsart with the \twoaddreess and the \genaddr +% macros. + +% For authors with two affiliations: +% \twoaddress{firstaddress}{secondaddress}{c} +% where c is the number of lines in the first address +\newcommand\addrand{{\normalfont and}} % Same as \biband + +\newcommand{\twoaddress}[4][]{\g@addto@macro\addresses{% +\address{#1}{#2 \protect\advance\parindent by -#4em\protect\\\addrand % +\protect\\ #3}}} + +% For other stuff in the addreses place, +% for example "Correspondence address", or "additional address" +% The optional #1 gives the appellation +% Enter as \genaddr{Correspondence address}{....} + +\newcommand{\genaddr}[2]{\g@addto@macro\addresses{\genaddr{#1}{#2}}} + +% Modify amsart to allow returns in \address, and indent on them +% \curraddr gives current address as in amsart + +\def\@setaddresses{\par + \nobreak \begingroup +\footnotesize + \def\author##1{\nobreak\addvspace\bigskipamount}% +%(amsart) \def\\{\unskip, \ignorespaces}% + \def\\{\unskip \newline\advance\parindent by 1em\indent}% (and indent) + \interlinepenalty\@M + + \def\address##1##2{\begingroup + \par\addvspace\bigskipamount\indent + \@ifnotempty{##1}{(\ignorespaces##1\unskip) }% +%(amsart) {\scshape\ignorespaces##2}\par\endgroup}% + {\ignorespaces\scriptsize\uppercase{##2}}\par\endgroup}% + + \def\curraddr##1##2{\begingroup + \def\\{\unskip, \ignorespaces} % use amsart style for curraddr + \@ifnotempty{##2}{\nobreak\indent{\itshape Current address}% + \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space + ##2\par\endgroup}}% + + \def\genaddr##1##2{\begingroup + \def\\{\unskip, \ignorespaces} % use amsart style for curraddr + \nobreak\indent{\textit{##1}\unskip}\/:\space + ##2\par\endgroup}% + + \def\email##1##2{\begingroup +%(amsart) \@ifnotempty{##2}{\nobreak\indent{\itshape E-mail address}% + \@ifnotempty{##2}{\nobreak\indent{\itshape E-mail}% + \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space +%(amsart) \ttfamily##2\par\endgroup}}% + \normalfont ##2\par\endgroup}}% + +\def\urladdr##1##2{\begingroup + \@ifnotempty{##2}{\nobreak\indent{\itshape URL}% + \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space +%(amsart) \ttfamily##2\par\endgroup}}% + \normalfont ##2\par\endgroup}}% + \addresses + \endgroup +} + +\def\urltilde{$^\sim$} % To use in URL addresses + +%------------------------------- Abstract + +% The Abstract is wider, with a smaller fontsize and +% a larger baselineskip than the one in amsart. +% 1998: keep the wider width but use the larger typefont +% which is just set to \Small. + +%\renewenvironment{abstract}{% +\newenvironment{abstract}{% +\newcommand{\abstractfontsize}{\ifnum\@mainsize=10 \fontsize{7}{10\p@} + \else \fontsize{8}{11\p@}\fi} +\ifx\maketitle\relax + \ClassWarning{\@classname}{Abstract should precede + \protect\maketitle\space in AMS documentclasses; reported}% + \fi + \global\setbox\abstractbox=\vtop \bgroup + \abstractfontsize\selectfont + \list{}{\labelwidth\z@ + \leftmargin1.5pc \rightmargin\leftmargin + \listparindent\normalparindent \itemindent\parindent + \parsep\z@ \@plus\p@ + \let\fullwidthdisplay\relax + }% +%(amsart) \item[\hskip\labelsep\scshape\abstractname.]% + \item[\hskip\labelsep\bfseries\abstractname.]% +}{% + \endlist\egroup + \ifx\@setabstract\relax \@setabstracta \fi +} + +%------------------------------- Logo setting + +\def\@setlogo{% +% Compute the width of the logobox +\newcommand{\datenametext}{Volumei\currentvolume iNumber +\currentnumber i\currentmonth i\currentyear} +\newcommand{\longdatenametext}% +{Volume \currentvolume,\hfill Number \currentnumber,\hfill + \currentmonth\hfill \currentyear} +\newlength{\@datename} +\settowidth{\@datename}{\normalfont\@logofontsize\selectfont \datenametext} +\newlength{\@logoname} +\settowidth{\@logoname}{% + \normalfont\@logofontsize\scshape\selectfont% +\journalname} +\newlength{\@logowidth} +\setlength{\@logowidth}{\ifdim\@logoname>\@datename \@logoname% +\else \@datename\fi} +% Pass the logobox to the amsart routine + \def\@serieslogo{% +\vbox to\headheight{% + \parindent\z@ \@logofontsize\selectfont% + \hsize\@logowidth{\scshape\selectfont \longjournalname}\newline +\longdatenametext\newline\endgraf\vss}} +} + +%------------------------------- Copyright setting + +\def\@copyrightfontsize{\ifnum\@mainsize=10 \fontsize{6}{8\p@} + \else \fontsize{7}{9\p@}\fi}% + +\def\@setcopyright{% +\ifCopyRight{% + \insert\copyins{\par\hsize\textwidth + \parfillskip\z@ \leftskip\z@\@plus.9\textwidth +\@copyrightfontsize\normalfont\upshape + \everypar{}% + \vskip-\skip\copyins \nointerlineskip + \noindent\vrule\@width\z@\@height\skip\copyins + \copyright\ \copyrightyear, Association for Symbolic Logic\break + \ISSN/\copyrightyearmodC/\paperID/\copyrightprice\endgraf + \par + \kern\z@}% +} +\else\relax +\fi +} + +%------------------------------- Sectioning commands + + +% For conditionals +% \iete{#1}{#2}{#3} = +% if #1 is empty then #2 else #3. +% Uses settowidth to avoid expanding #1 + +\newlength\ietetest +\def\iete#1#2#3{\settowidth\ietetest{#1}% +\ifdim\ietetest=0pt{#2}\else{#3}\fi} + +\def\@secnumfont{\bfseries} + +% Section, has the \S symbol in \thesection +% while the deeper environments do not + +\renewcommand\thesection {\arabic{section}} +\renewcommand\thesubsection {\thesection.\arabic{subsection}} +\renewcommand\thesubsubsection {\thesubsection.\arabic{subsubsection}} + +\def\section{\@secstartsection{section}{1}% % to treat \S in \section* +{\parindent\bfseries}{12\p@\@plus3\p@}{-.5em} +{\normalfont\bfseries}} + +% The adjustment gives the right spacing for \section{} + +\def\@secstartsection#1#2#3#4#5#6{% + \if@noskipsec \leavevmode \fi + \par \@tempskipa #4\relax + \@afterindenttrue + \ifdim \@tempskipa <\z@ \@tempskipa -\@tempskipa \@afterindentfalse\fi + \if@nobreak \everypar{}\else + \addpenalty\@secpenalty\addvspace\@tempskipa\fi + \@ifstar{\@dblarg{\@sect{#1}{\@m}{#3}{#4}{#5}{#6}}}% + {\@dblarg{\@sect{#1}{#2}{#3\S}{#4}{#5}{#6}}}% % \S here +} + +\def\subsection{\@startsection{subsection}{2}% + {\parindent}{2\p@}{-.5em}% (some vertical space above) +{\normalfont\bfseries}} + +\def\subsubsection{\@startsection{subsubsection}{3}% +{\parindent}{1\p@}{-.5em}% (same as for paragraphs in bsl) +{\normalfont\itshape}} + +\def\@sect#1#2#3#4#5#6[#7]#8{% + \edef\@toclevel{\ifnum#2=\@m 0\else\number#2\fi}% + \ifnum #2>\c@secnumdepth \let\@secnumber\@empty + \else \@xp\let\@xp\@secnumber\csname the#1\endcsname\fi + \ifnum #2>\c@secnumdepth + \let\@svsec\@empty + \else + \refstepcounter{#1}% + \edef\@svsec{\ifnum#2<\@m + \@ifundefined{#1name}{}{% + \ignorespaces\csname #1name\endcsname\space}\fi + \@nx\textup{% + \@nx\@secnumfont + \csname the#1\endcsname.}\enspace + }% + \fi + \@tempskipa #5\relax + \ifdim \@tempskipa>\z@ % then this is not a run-in section heading + \begingroup #6\relax + \@hangfrom{\hskip #3\relax\@svsec}{\interlinepenalty\@M #8\par}% + \endgroup + \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi + \else + \def\@svsechd{#6\hskip #3\@svsec +% Change the next two lines to correct horizontal spacing +% in the case of \section{} +% Use \iete rather than \@ifempty to avoid expansion +% \@ifnotempty{#8}{\ignorespaces#8\unskip +% \@addpunct.}% +% \iete{#8}{\hskip -.4em}{\ignorespaces#8\unskip\@addpunct.}% + \iete{#8}{\hskip -.4em}{\ignorespaces#8\unskip\@addpunct.}% + \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi + }% + \fi + \global\@nobreaktrue + \@xsect{#5}} + +%-------------------------------------- Quotation + +\newenvironment{quotation}{\list{}{% +% \leftmargin3pc \listparindent\normalparindent + \leftmargin1.5pc \listparindent\normalparindent + \itemindent\z@ + \rightmargin\leftmargin \parsep\z@ \@plus\p@}% + \item[]% +}{% + \endlist +} +\let\endquotation=\endlist % for efficiency + +%-------------------------------- Theorems + +% We follow amsthm.sty for the most part. + +\def\@thm#1#2#3{\normalfont + \trivlist + \edef\@restorelabelsep{\labelsep\the\labelsep}% + \labelsep.5em\relax \let\thmheadnl\relax +% \let\thm@indent\noindent % no indent + \let\thm@indent\indent % we indent + \let\thm@swap\@gobble +% \thm@headfont{\bfseries} % heading font bold + \thm@headfont{\scshape} % heading font smallcaps + \thm@headpunct{.}% add period after heading + \thm@notefont{\normalfont} % optional note font, added + \thm@preskip\topsep + \thm@postskip\thm@preskip + #1% style overrides + \@topsep \thm@preskip % used by first \item + \@topsepadd \thm@postskip % used by \@endparenv + \def\@tempa{#2}\ifx\@empty\@tempa + \def\@tempa{\@oparg{\@begintheorem{#3}{}}[]}% + \else + \refstepcounter{#2}% + \def\@tempa{\@oparg{\@begintheorem{#3}{\csname the#2\endcsname}}[]}% + \fi + \@tempa +} +%------------------------------------------ Proofs + +\newcommand{\qedsymbol}{\mbox{$\dashv$}} +\newcommand{\noqed}{\def\qedsymbol{}} + +\newcommand{\proofname}{Proof} + +% \begin{proof}[Proof of Claim] +% gives {\scshape Proof of Claim}. ... +% \begin{proof}[\it Proof] +% gives a proof with the proofname in italics + +\newif\ifqedneeded % to deal with the \proofend command +\qedneededtrue +\newlength{\@back} +\setlength{\@back}{\baselineskip} +\addtolength{\@back}{\jot} + +\newenvironment{proof}[1][\proofname]{\par +\let\oldqedsymbol\qedsymbol % Store \qedsymbol +\global\qedneededtrue % just in case \proofend was invoked + \normalfont +% \topsep6\p@\@plus6\p@ \trivlist % ynm debug +\trivlist % debug + \item[\hskip\labelsep\hskip\parindent\scshape + #1\@addpunct{.}]\ignorespaces +}{% +\ifqedneeded\qed\else\global\qedneededtrue% +\vspace*{-\baselineskip}\fi\endtrivlist +\global\let\qedsymbol\oldqedsymbol % Restore it, if it had been changed +} + +% Add the environment with no period after Proof +% For construction of the form +% Proof is by induction ... + +\newenvironment{proofplain}[1][\proofname]{\par +\let\oldqedsymbol\qedsymbol % Store \qedsymbol +\global\qedneededtrue % just in case \proofend was invoked + \normalfont + \topsep6\p@\@plus6\p@ \trivlist + \item[\hskip\labelsep\hskip\parindent\scshape +% #1\@addpunct{.}]\ignorespaces + #1] +}{% +\ifqedneeded\qed\else\global\qedneededtrue% +\vspace*{-\baselineskip}\fi\endtrivlist +\global\let\qedsymbol\oldqedsymbol % Restore it, if it had been changed +} + +%-------------------------------------- Bibliography + +\def\refname{REFERENCES} +\newcommand{\bysame}{\leavevmode\hbox{% + \vsize.7ex \advance\vsize-.4pt + \vrule height.7ex depth-\vsize width3em}% + \thinspace} + +\newcommand{\weaktie}{\penalty9999\spacefactor1000 \space} + +\newcommand\biband{{\normalfont and}} +\newcommand\bibetal{{\normalfont et\weaktie al.}} + +% Define \jslname and \bslname which are produced by asl.bst +% The options jsl and bsl redefine these +\def\jslname{{\bfit The Journal of Symbolic Logic}} +\def\bslname{{\bfit The Bulletin of Symbolic Logic}} + +% The pointsizes here depend on the overall pointsize +% and we deal with this by simply taking cases. +% 1998: The results for 12pt will not be very good. +% 1998: and it may be useful to add a third case, if we want a 12pt + +\newenvironment{thebibliography}[1]{% +\ifnum\@mainsize=10 % (at 10pt, the normal for the jsl) + \par + \vspace{18pt}% + \centerline{\fontsize{7}{7\p@}\selectfont \refname}% + \nobreak\vspace*{5pt}\nobreak% + \fontsize{8}{10\p@}\selectfont\relax + \def\and{{\normalfont \lowercase{and}\ }}% + \list{[\@arabic\c@enumi]\ }{% + \leftmargin\z@ \labelwidth\z@ \itemindent12\p@ + \labelsep\z@ \usecounter{enumi}}% + \sloppy \clubpenalty4000\relax \widowpenalty\clubpenalty + \sfcode`\.\@m +\else % (at 11pt or bigger) + \par + \vspace{20pt}% + \centerline{\fontsize{8}{8\p@}\selectfont \refname}% + \nobreak\vspace*{6pt}\nobreak% + \fontsize{9}{11\p@}\selectfont\relax + \def\and{{\normalfont \lowercase{and}\ }}% + \list{[\@arabic\c@enumi]\ }{% + \leftmargin\z@ \labelwidth\z@ \itemindent12\p@ + \labelsep\z@ \usecounter{enumi}}% + \sloppy \clubpenalty4000\relax \widowpenalty\clubpenalty + \sfcode`\.\@m% +\fi} % end of the pointsize choice +{\endlist} + +%-------------------------------------- bibliography options +% \input bibextra.sty +% This (until "endbibextra") is Kapoutsis' bibextra.sty +% implementing the commands required by asl.bst +% It defines the options bibalpha, bibay1 and bibay2 +%%%==================================================================== +%%%==0== General description ========================================== +%%%==================================================================== + +% WHAT \bib?item AND \bibxcite DO +% +% Commands \bibfitem, \bibritem replace \bibitem, providing more +% flexibility. Their exact syntax is (see also file asl.bst) +% \bib?item 1. {citation key} +% 2. {guys-list} +% 3. {year} +% 4. {tag} +% 5. {`number' of editors} +% 6. {hardcite} +% 7. {hardlist} +% Like \bibitem, each one of \bib?item lies in a `thebibliography' +% environment (which is just a special `list' environment) and is +% followed by some text that describes a bibliography entry. The +% only difference between the two commands is that: in a group of +% successive entries that have the same author(s)/editor(s), BibTeX +% will introduce the f-irst entry with \bibfitem and the r-est with +% \bibritem. So, differences in the definitions of the commands may +% produce nice effects. (E.g., see \intergroupsep below.) +% +% As an example, here is a possible case (with any of \bibfitem, +% \bibritem in place of \bib?item): +% \begin{thebibliography} +% ... +% \bib?item{easy} +% {\guy{C.}{Christos}{}{Kapoutsis}{}} +% {2020}{a}{0} +% {}{} +% \guysmagic{Christos Kapoutsis} {\itshape $\P=\NP$}, +% {\bfseries\itshape Ciao}, vol.\weaktie 30\yearmagic{}{(2020)}, +% no.\weaktie 50, pp.\weaktie 1--2. +% ... +% \end{thebibliography} +% +% There are two things the command should do: +% (i) provide an \item[label] of this `list'-like `thebibliography' +% environment. The label should be relevant to the corresponding +% bibliography entry. Obviously, it should be constructed out of +% the arguments of \bib?item. +% (ii) write a \bibxcite command to the .aux file. At the beginning +% of its next pass, LaTeX will execute this command and thus +% define the citation label for the specific entry (that is, +% the label that will appear wherever in the text there is a +% reference to this entry). +% +% [ Note: Below, both commands use \@bib@item as a `submacro' (\bibritem +% is exactly that; \bibfitem also inserts a vertical space). So, we +% refer to `the definition of \bib?item', meaning `the definition +% of \@bib@item'. ] +% +% The first three lines in the definition of \bib?item handle (i): +% \item[\@wrap@list{% +% \@ifisempty{#7}{\composelist{#1}{#2}{#3}{#4}{#5}}{#7}% +% }]% +% This is a typical \item[..] command. (Note that, because of the +% brackets, this does not advance \@listctr, the counter of the list). +% \@wrap@list encloses the result of the second line into brackets (its +% definition is simply that: \def\@wrap@list#1{[#1]}; but, of course, +% it may change; it does, in option bibay2). And the result of the +% second line is +% -- the hardlist field of the entry (argument #7), if there was +% such a field in the entry. +% -- the result of the \composelist macro, otherwise. +% +% It is evident that the syntax of \composelist is +% \composelist 1. {citation key} +% 2. {guys-list} +% 3. {year} +% 4. {tag} +% 5. {`number' of editors} +% and that its purpose is to construct a label for the item out of its +% arguments. It is important to note that, being within the environment +% `thebibliography', \composelist has access to the \@listctr counter, +% the counter of the list. Therefore, interesting effects are possible. +% For example, a definition of the form +% \def\composelist#1#2#3#4#5{% +% \addtocounter{\@listctr}{1}\the\value{\@listctr}} +% would result in the list label being (almost) the order of the item +% in the bibliography list. (This is the actual definition of the +% command when none of the bibalpha, bibay1, bibay2 options is set.) +% +% [ Note: (To explain `almost'.) Even if \composelist remembers to +% advance \@listctr, this advance will not be performed at entries +% that had their hardlist field defined. Indeed, \bib?item will +% select the value of that field as the label of the entry in the +% bibliography listing and will not call \composelist at all. ] +% +% The rest of the definition of \bib?item handles (ii). Lines +% \@auxstring={\bibxcite{#1}{#2}{#3}{#4}{#5}{#6}} +% \immediate\write\@auxout{\the\@auxstring{\the\value{\@listctr}}}} +% result in printing into the .aux file the command +% \bibxcite{citation key}{guys-list}{year}{tag}{noe}{hardcite}{n} +% where n = the order of the item in the list (almost). For example, +% assuming the case cited above, the next pass of LaTeX will print +% into the .aux file the command +% \bibxcite{easy}{\guy{C.}{Christos}{}{Kapoutsis}{}}{2020}{a}{0}{}{7} +% if this was (almost) the seventh item in the list... + + +% CITATION +% +% ...In its next pass, LaTeX will start (as always) by reading the +% .aux file. So, it will execute this \bibxcite command. The result +% will be (see the definition of \bibxcite below) the definition of +% the following macros: +% \gu@easy -> \guy{C.}{Christos}{}{Kapoutsis}{} +% \yr@easy -> 2020 +% \yt@easy -> a +% \cp@easy -> \composecitepre{easy} +% {\guy{C.}{Christos}{}{Kapoutsis}{}}{2020}{a}{0}{7} +% \ci@easy -> \composeciteid{easy} +% {\guy{C.}{Christos}{}{Kapoutsis}{}}{2020}{a}{0}{7} +% (but if there was a nonempty hardcite argument, the \ci@easy macro +% would have been set to that). +% In the sequel, LaTeX will read the .tex file and (see the +% definition for \citeauth, \citeyear, \citeytag) use \gu@easy to +% replace all \citeauth{easy} references, \yr@easy,\yt@easy for all +% \citeyear{easy} references, etc. +% +% As for the classical \cite command, this is redefined in order +% to serve the following intention: Each citation label consists of +% two parts: `pre' and `id'; `pre' may be empty, but `id' shouldn't. +% For the entry named `easy', the `pre' part is whatever \cp@easy +% has been defined to be and the `id' part is whatever \ci@easy has +% been defined to be. Typically, `pre' will be empty or the list of +% authors' names and `id' will be the year followed by the year tag. +% [ One can alter these two definitions by properly redefining the +% \composecitepre and \composeciteid commands. But redefinition +% of \composeciteid will have no effect if the entry has a +% hardcite field. See the \bibxcite command below. +% +% Specifically, the syntax of \composeciteXXX (XXX=pre,id) is +% \composeciteXXX 1. {citation key} +% 2. {guys-list} +% 3. {year} +% 4. {tag} +% 5. {`number' of editors} +% 6. {n} +% where n is as in the syntax for \bibxcite. The intension is that +% the command should construct a cite label out of its arguments. +% E.g., +% \def\composecitepre#1#2#3#4#5#6{% +% \let\oldguy=\guy% +% \def\guy##1##2##3##4##5{% +% ##1\@ifnonempty{##3}{ ##3}~##4} +% #2% (<-) +% \global\let\guy=\oldguy} +% defines the `pre' part to be the list of author(s)/editor(s), +% in line (<-). The other lines redefine \guy so that a +% `first-name-initials von last' format is used for the names. +% So, applied to the running example, this definition would +% result in this `pre' part of the citation label: `C.~Kapoutsis'. +% ] +% The `id' part will be always present in a citation, while the `pre' +% part may be gobbled up. +% +% The code `\cite[opt]{easy}' in the text is equivalent to: +% \@wrap@cite{\@wrap@alone@label{\@make@alone@label{opt}{easy}}} +% Here, \@wrap@cite may provide a wrap for the whole citation, while +% \@wrap@alone@label may provide a wrap for the label. The command +% \@make@alone@label should construct the actual label out of the +% two arguments of \cite and using the \cp@easy, \ci@easy macros +% defined by \bibxcite. +% The code `\cite{easy}' is equivalent to `\cite[]{easy}'. +% Infix `alone' implies that the label that is being constructed +% is the only label in the citation. +% +% There may be more than one label, e.g., +% \cite{easy,hard} +% where `hard' is the name of some other entry. This code is equivalent +% to this one: +% \@wrap@cite{% +% \@wrap@first@label{\@make@first@label{opt}{easy}}% +% \@wrap@final@label{\@make@final@label{opt}{hard}}% +% } +% Here, `first' and `final' imply that the corresponding labels appear +% first (and, at the same time, nonlast) and last (and, at the same +% time, nonfirst) in the list, respectively. +% +% There may also be more than two labels. E.g., the command +% \cite{easy,typical1,..,typicalN,hard} (for N>0) +% is equivalent to this: +% \@wrap@cite{% +% \@wrap@first@label{\@make@first@label{opt}{easy}}% +% \@wrap@inner@label{\@make@inner@label{opt}{typical1}}% +% ... +% \@wrap@inner@label{\@make@inner@label{opt}{typicalN}}% +% \@wrap@final@label{\@make@final@label{opt}{hard}}% +% } +% where `inner' implies the construction of a both nonfirst and nonlast +% label. +% +% Properly defining the \@wrap@xxxxx@label commands we can get some +% nice effects. But wrapping also occurs deeper in the construction +% of the label: \@make@xxxxx@label{opt}{easy} is equivalent to +% \@wrap@xxxxx@label@pre{\@make@label@pre{opt}{easy}}% +% \@wrap@xxxxx@label@id{\@make@xxxxx@label@id{opt}{easy}} +% which constructs and wraps the `pre' and `id' parts of the label. +% +% The two \@make commands in this level construct the two parts of the +% label in the expected way. The only important thing here is that: +% in a maximal list of successive labels that have the same `pre' +% part, \@make@label@pre will return the `pre' part of the first +% of these labels but just an empty string for every other label. +% This is how, e.g., a list like +% \cite{Church1949a,Church1949b,Church1950} +% ends up to be +% Church [1949a], [1949b], [1950] +% and not +% Church [1949a], Church [1949b], Church [1950] +% in style `bibay2'. +% +% Also note that, in all options, the optional argument `opt' of the +% \cite[opt]{name1,name2,..,nameN} +% command is appended as a comment to the last entry, that is to the +% antry named `nameN'. But this may also change, by properly redefining +% the \@make@xxxxx@label commands. + + + + + + + +%%%==================================================================== +%%%==1== General purpose ============================================== +%%%==================================================================== + +% Some numbers. +\mathchardef\@oh=100 +\mathchardef\@fh=500 + + +% To select on the emptiness of an argument. \@ifisempty checks whether +% its first argument is empty. If so, the second argument is selected. +% Otherwise, the third argument is selected. +% +% The trick is to construct a new temporary macro \@iietest as +% {}, if #1 is empty or {blabla}, if #1 is blabla. +% Then, \ifx compares the `top level' expansion of \@iietest and of +% \empty (whose definition is: \def\empty{}). +\def\@ifisempty#1#2#3{% + \def\@iietest{#1}% + \ifx\@iietest\empty #2\else #3\fi} + +% To do something only when an argument is nonempty & not `\empty'. +% If #1 is empty, \ifx compares \empty with \else, finds them +% different and just gobbles up everything up to \fi, doing nothing. +% Otherwise: if #1 is the \empty command, \ifx compares it with +% \empty, finds them identical, executes everything (nothing) upto +% the \else command and ignores everything else upto \fi. So, in +% total, it does nothing at all. +% Otherwise: if #1 is not the \empty command, \ifx compares \empty +% with (the starting of) #1, finds them different, gobbles up +% everything up to \else, and executes #2. +% Apparently, #1 shouldn't contain an unmatched \else. +\def\@ifnonempty#1#2{\ifx\empty#1\else#2\fi} + +% Redefinition of the \@for#1:=#2\do macro. This macro allows iteration +% over a comma separated list of strings. For example, this code: +% \@for\temp:= one, two , three\do{<\temp>} +% is equivalent to this code: +% +% (Notice that leading spaces are trimmed off, while trailing blanks +% contract to a single space.) +% +% We first copy the set of relevant commands from latex.ltx and then +% we add the lines with the comments on the right. This way, we have +% two new if's: +% -- \if@sol, which is true iff the current item is the first item +% of the list, and +% -- \if@eol, which is true iff the current item is the last item +% of the list. +\newif\if@sol % !insertion: \@sol created. +\newif\if@eol % !insertion: \@eol created. + +\def\@predictor{?} % !insertion: updating \@eol. +\def\@end@of@list{\@nil,\@nil} % +\def\@update@eol#1{% % + \def\@predictor{#1}% % + \ifx\@predictor\@end@of@list% % + \@eoltrue% % + \else% % + \@eolfalse% % + \fi% % +} % + +\long\def\@for#1:=#2\do#3{% + \@soltrue% % !insertion: \@sol inited. + \@eolfalse% % !insertion: \@eol inited. + \expandafter\def\expandafter\@fortmp\expandafter{#2}% + \ifx\@fortmp\@empty \else + \expandafter\@forloop#2,\@nil,\@nil\@@#1{#3}\fi} +\long\def\@forloop#1,#2,#3\@@#4#5{% + \@update@eol{#2,#3}% % !insertion: \@eol updated. + \def#4{#1}% + \ifx #4\@nnil \else% + #5% + \@solfalse% % !insertion: \@sol updated. + \@update@eol{#3}% % !insertion: \@eol updated. + \def#4{#2}% + \ifx #4\@nnil \else% + #5% + \@iforloop #3\@@#4{#5}% + \fi% + \fi% +} +\long\def\@iforloop#1,#2\@@#3#4{% + \@update@eol{#2}% % !insertion: \@eol updated. + \def#3{#1}% + \ifx #3\@nnil% + \expandafter\@fornoop% + \else% + #4\relax% + \expandafter\@iforloop% + \fi% + #2\@@#3{#4}% +} + + + + + + + + + +%%%==================================================================== +%%%==2== Material used by all options ================================= +%%%==================================================================== + + + +%%%==2A. What MUST be defined ========================================= +% See asl.bst, Section `COMMANDS THAT THE TEX USER SHOULD DEFINE'. +% (\bysame, \weaktie, \jslname, \bslname are defined elsewhere.) +% See the discussion above. + +\def\yearappear{\def\yearmagic##1##2{##1 ##2}} +\def\yeardisappear{\def\yearmagic##1##2{}} + +\def\guysappear{\def\guysmagic##1{##1,}} +\def\guysdisappear{\def\guysmagic##1{}} + +\def\guy#1#2#3#4#5{#4} + +\def\TheSortKeyIs#1{} + +\newtoks\@auxstring +\newlength{\intergroupsep} +\def\@bib@item#1#2#3#4#5#6#7{% +\item[\@wrap@list{% + \@ifisempty{#7}{\composelist{#1}{#2}{#3}{#4}{#5}}{#7}% +}]% +\if@filesw{% + \def\protect##1{\string ##1\space}% + \@auxstring={\bibxcite{#1}{#2}{#3}{#4}{#5}{#6}} + \immediate\write\@auxout{\the\@auxstring{\the\value{\@listctr}}}} +\fi +\mbox{ }\ignorespaces +} +\def\bibfitem{\vspace{\intergroupsep}\@bib@item} +\let\bibritem=\@bib@item + + +%%%==2B. Citation enhancements ======================================== + +% Define all necessary entry data as macros. +\def\bibxcite#1#2#3#4#5#6#7{ + \global\@namedef{gu@#1}{#2} % guys list + \global\@namedef{yr@#1}{#3} % year + \global\@namedef{yt@#1}{#4} % year tag + \global\@namedef{cp@#1}{\composecitepre{#1}{#2}{#3}{#4}{#5}{#7}} %%% + \@ifisempty{#6} % cite pre & id % + {\global\@namedef{ci@#1}{\composeciteid{#1}{#2}{#3}{#4}{#5}{#7}}} % + {\global\@namedef{ci@#1}{#6}} %%% +} + +% Action to be taken when a citation key is used without having been +% defined yet: A bold question mark is left and a warning is printed. +\def\cite@nondef@type{{\reset@font\bf ?}} +\def\cite@nondef@warn#1{% + \@warning{Citation `#1' on page \thepage\space undefined}} +\def\cite@nondef#1{\cite@nondef@type\cite@nondef@warn{#1}} + + +% CITATION SPACING +% +% For the construction of the citations we define two spaces: a hard +% one (\@hard@cispace) which does not break at line end and a soft one +% (\@soft@cispace) which breaks. \@cispace is always one of these two +% spaces. We use \@cispace each time we want a space which we do not +% know for sure if it should be hard or soft. +% When preceding a \cite or \fullcite command, the \XXXXcispacehere +% command (XXXX=hard,soft) makes \@cispace be XXXX for this citation. +% Command \XXXXcispace makes \@cispace be XXXX for all citations +% after it and before the next \XXXXcispace command. +% This behavior is achieved through the use of \@global@cispace and +% the reassignment of \@cispace to that, at the end of the \cite +% command definition. +\def\@hard@cispace{\penalty\@m\space} +\def\@soft@cispace{\space} +\def\hardcispacehere{\let\@cispace=\@hard@cispace} +\def\softcispacehere{\let\@cispace=\@soft@cispace} +\def\hardcispace{ + \let\@global@cispace=\@hard@cispace + \let\@cispace=\@hard@cispace} +\def\softcispace{ + \let\@global@cispace=\@soft@cispace + \let\@cispace=\@soft@cispace} + + +% REDEFINITION OF THE \cite MACRO (See a discussion above.) +% +% Store the old \cite and \@citex +% and put this in a command +\let\oldcite\cite +\let\old@citex\@citex +\let\oldbibitem\bibitem + +% To turn the old style on +\def\oldbib{\let\cite\oldcite\let\@citex\old@citex\bibitemfalse} +\newif\ifbibitem +\bibitemtrue +\def\bibitem{\ifbibitem\errbibitem\bibitemfalse\fi\oldbibitem} + +\def\errbibitem{% +\errmessage{**************************************************^^J +There are (ugh!) bibitems in your .bbl file!^^J^^J +Use the option bibother to get the correct citations.^^J^^J +And think about using bibliographystyle{asl}^^J +which is highly recommended for ASL publications!^^J +**************************************************^^J}} + + + +\DeclareRobustCommand\cite{% + \@ifnextchar [{\@tempswatrue\@citex}{\@tempswafalse\@citex[]}} + +\def\@citex[#1]#2{% +%properly wrap the whole list of citations: + \@wrap@cite{% +%now traverse the list, \@citeb always being the current item. + \@for\@citeb:=#2\do{% +%gobble one initial space, if present: + \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}% +%output sth like `\citation{Church36a}' to the auxiliary file: + \if@filesw% + \immediate\write\@auxout{\string\citation{\@citeb}}% + \fi% +%select the proper \@wrap@xxxxx@label, \@make@xxxxx@label commands: + \if@sol% + \if@eol% + \def\@wrap@label{\@wrap@alone@label}% + \def\@make@label{\@make@alone@label}% + \else% + \def\@wrap@label{\@wrap@first@label}% + \def\@make@label{\@make@first@label}% + \fi% + \else% + \if@eol% + \def\@wrap@label{\@wrap@final@label}% + \def\@make@label{\@make@final@label}% + \else% + \def\@wrap@label{\@wrap@inner@label}% + \def\@make@label{\@make@inner@label}% + \fi% + \fi% +%make this item's label, and print it properly wrapped. + \@wrap@label{\@make@label{#1}{\@citeb}}% + }% + }% +%reset spacing to be as in global definition. + \let\@cispace=\@global@cispace% +} + +% making label parts: +\def\@make@alone@label#1#2{% + \@wrap@alone@label@pre{\@make@label@pre{#1}{#2}}% + \@wrap@alone@label@id{\@make@alone@label@id{#1}{#2}}% +} +\def\@make@first@label#1#2{% + \@wrap@first@label@pre{\@make@label@pre{#1}{#2}}% + \@wrap@first@label@id{\@make@first@label@id{#1}{#2}}% +} +\def\@make@final@label#1#2{% + \@wrap@final@label@pre{\@make@label@pre{#1}{#2}}% + \@wrap@final@label@id{\@make@final@label@id{#1}{#2}}% +} +\def\@make@inner@label#1#2{% + \@wrap@inner@label@pre{\@make@label@pre{#1}{#2}}% + \@wrap@inner@label@id{\@make@inner@label@id{#1}{#2}}% +} +\def\@prev@label@pre{} % \@prev@label@pre: *init +\def\@make@label@pre#1#2{% + \@ifundefined{cp@#2} + {\cite@nondef@type} + {\edef\@curr@label@pre{\csname cp@#2\endcsname}% + \ifx\@curr@label@pre\@prev@label@pre\else% + \@wrap@label@pre{\@curr@label@pre}% + \fi% + \global\edef\@prev@label@pre{\@curr@label@pre}% *update + }% +} +\def\@make@alone@label@id#1#2{% + \@ifundefined{ci@#2} + {\cite@nondef{#2}% + \@ifnonempty{#1}{,\@cispace#1}% + } + {\csname ci@#2\endcsname% + \@ifnonempty{#1}{,\@cispace#1}% + \global\def\@prev@label@pre{}% *reset + }% +} +\def\@make@first@label@id#1#2{% + \@ifundefined{ci@#2} + {\cite@nondef{#2}} + {\csname ci@#2\endcsname}% +} +\def\@make@final@label@id#1#2{% + \@ifundefined{ci@#2} + {\cite@nondef{#2}% + \@ifnonempty{#1}{,\@cispace#1}% + } + {\csname ci@#2\endcsname% + \@ifnonempty{#1}{,\@cispace#1}% + \global\def\@prev@label@pre{}% *reset + }% +} +\def\@make@inner@label@id#1#2{% + \@ifundefined{ci@#2} + {\cite@nondef{#2}} + {\csname ci@#2\endcsname}% +} + + +% VARIANTS OF THE \cite MACRO +% +% For each variant, the (unique) argument should contain only one +% entry name (that is, a comma-separated list of entry names is not +% supported). Moreover, there is no optional argument. +\def\citeauth#1{% For the list of author(s). +\@ifundefined{gu@#1} + {\cite@nondef{#1}} + {\csname gu@#1\endcsname}} + +\def\citeyear#1{% For the year + year tag label. +\@ifundefined{yr@#1} + {\cite@nondef{#1}} + {\csname yr@#1\endcsname\csname yt@#1\endcsname}} + +\def\citeytag#1{% For the year tag. +\@ifundefined{yt@#1} + {\cite@nondef{#1}} + {\csname yt@#1\endcsname}} + +\DeclareRobustCommand\fullcite{% For a full-name citation. + \@ifnextchar [{\@tempswatrue\@fcitex}{\@tempswafalse\@fcitex[]}} +\def\@fcitex[#1]#2{% + \let\oldguy=\guy% + \def\guy##1##2##3##4##5{% + ##2 \@ifnonempty{##3}{##3}~##4\@ifnonempty{##5}{, ##5}}% + \@citex[#1]{#2}% + \global\let\guy=\oldguy% +} + + +% REDEFINITION OF THE \nocite MACRO (See a discussion above.) +% +% This is almost identical to the definition of the command in +% latex.ltx. The only difference is the first argument of the +% \@ifundefined command, which is `gu@\@citeb' instead of +% `b@\@citeb'. +\def\nocite#1{% +%some initial hacking I don't understand: + \@bsphack% +%traverse the comma-separated list, \@citeb being the current item: + \@for\@citeb:=#1\do{% +%gobble one initial space, if present: + \edef\@citeb{\expandafter\@firstofone\@citeb}% +%output sth like `\citation{Church36a}' to the auxiliary file: + \if@filesw% + \immediate\write\@auxout{\string\citation{\@citeb}}% + \fi% +%check if the citation has been defined previously: + \@ifundefined{gu@\@citeb}% + {\G@refundefinedtrue% + \@latex@warning{Citation `\@citeb' undefined}}% + {}% + }% +%some final hacking I don't understand: + \@esphack% +} +% Also define the control sequence \gu@*, to prevent a warning when +% the \nocite{*} command is used. +\expandafter\let\csname gu@*\endcsname\@empty + + + + + + + + +%%%==================================================================== +%%%==3== The Options ================================================== +%%%==================================================================== + + + +%%%==3A. Option None (default style) ================================== +\guysappear +\yearappear +\setlength{\intergroupsep}{0ex} +\def\composelist#1#2#3#4#5{% + \addtocounter{\@listctr}{1}\the\value{\@listctr}} +\def\@wrap@list#1{[#1]} + +\def\composecitepre#1#2#3#4#5#6{} +\def\composeciteid#1#2#3#4#5#6{#6} +\def\@wrap@cite#1{[#1]} +\def\@wrap@alone@label#1{#1} +\def\@wrap@first@label#1{#1,\@cispace} +\def\@wrap@final@label#1{#1} +\def\@wrap@inner@label#1{#1,\@cispace} +\def\@wrap@alone@label@pre#1{#1} +\def\@wrap@first@label@pre#1{#1} +\def\@wrap@final@label@pre#1{#1} +\def\@wrap@inner@label@pre#1{#1} +\def\@wrap@alone@label@id#1{#1} +\def\@wrap@first@label@id#1{#1} +\def\@wrap@final@label@id#1{#1} +\def\@wrap@inner@label@id#1{#1} +\def\@wrap@label@pre#1{#1} +\hardcispace + + +%%%==3B. Option bibalpha ============================================== +\DeclareOption{bibalpha}{ +\guysappear +\yearappear +\def\composelist#1#2#3#4#5{#1} + +\def\composecitepre#1#2#3#4#5#6{} +\def\composeciteid#1#2#3#4#5#6{#1} +\def\@wrap@first@label#1{#1,\@cispace} +\def\@wrap@inner@label#1{#1,\@cispace} +} + + +%%%==3C. Option bibay1 (author-year style) ============================ +\DeclareOption{bibay1}{ +\guysappear +\yearappear +\def\composelist#1#2#3#4#5{#3#4} +\def\composecitepre#1#2#3#4#5#6{#2} +\def\composeciteid#1#2#3#4#5#6{#3#4} +\def\@wrap@cite#1{#1} +\def\@wrap@first@label#1{#1} +\def\@wrap@inner@label#1{#1} +\def\@wrap@alone@label@id#1{,\@cispace#1]} +\def\@wrap@first@label@id#1{,\@cispace#1} +\def\@wrap@final@label@id#1{,\@cispace#1]} +\def\@wrap@inner@label@id#1{,\@cispace#1} +\def\@wrap@label@pre#1{\if@sol\else],\space\fi[#1} +} + + +%%%==3D. Option bibay2 (author-year style) ============================ +\DeclareOption{bibay2}{ +\guysdisappear +\yeardisappear +\def\edlabel{\space(editor)\space} +\def\edslabel{\space(editors)\space} +\def\composelist#1#2#3#4#5{% + \let\oldguy=\guy% + \def\guy##1##2##3##4##5{% + ##2 \@ifnonempty{##3}{##3~}##4\@ifnonempty{##5}{, ##5}}% + \ifcase#5\textsc{#2}\space\or#2\edlabel\or#2\edslabel\fi[#3#4],% + \global\let\guy=\oldguy} +\def\@wrap@list#1{#1} + +\def\composecitepre#1#2#3#4#5#6{#2} +\def\composeciteid#1#2#3#4#5#6{#3#4} +\def\@wrap@cite#1{#1} +\def\@wrap@first@label#1{#1} +\def\@wrap@inner@label#1{#1} +\def\@wrap@alone@label@id#1{[#1]} +\def\@wrap@first@label@id#1{[#1],\space} +\def\@wrap@final@label@id#1{[#1]} +\def\@wrap@inner@label@id#1{[#1],\space} +\def\@wrap@label@pre#1{#1\@cispace} +} + +%%%%%%%%%%% Bib styles other than asl.bst + +\DeclareOption{bibother}{\oldbib} + +%%%%%%%%%%% endbibextra code + +%-------------------------------------- endnotes options +% \input ntsextra.sty +% Until "endntsextra" this is the Kapoutsis customization of +% endnotes.sty +% It defines options endnotes and mixednotes + +%%%==================================================================== +%%%==1== The options ================================================== +%%%==================================================================== + +% The standard option is just the file aslnotes.sty. Both options that +% follow (endnotes, mixednotes) first execute the standard one. + +%%%==1A. The standard option ========================================== +\DeclareOption{stdnotes}{ +% This is file aslnotes.sty, version 1.0, inserted. +% A version of John Lavagnino's endnotes.sty customized for asl.cls +% by Christos Kapoutsis. For the customization, see sections marked +% ckap at end. For instructions search for instructions (at the end). + +\message{^^J +Using a version of John Lavagnino's endnotes.sty [1991/09/24]^^J +customized for asl.cls by Christos Kapoutsis^^J^^J} + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% **************************************** +% * ENDNOTES * +% **************************************** +% +% Date of this version: 24 September 1991. +% +% Based on the FOOTNOTES section of +% LATEX.TEX (VERSION 2.09 - RELEASE OF 19 April 1986), with +% "footnote" changed to "endnote" and "fn" changed to "en" (where +% appropriate), with all the minipage stuff pulled out, and with +% some small changes for the different operation of endnotes. +% +% Uses an extra external file, with .ENT extension, to hold the +% text of the endnotes. This may be deleted after the run; a new +% version is generated each time. +% +% This code does not obey \nofiles. Perhaps it should. +% +% John Lavagnino (lav@brandeis.bitnet), 9/23/88 +% Department of English and American Literature, +% Brandeis University +% +% To turn all the footnotes in your documents into endnotes, say +% +% \let\footnote=\endnote +% +% in your preamble, and then add something like +% +% \newpage +% \begingroup +% \parindent 0pt +% \parskip 2ex +% \def\enotesize{\normalsize} +% \theendnotes +% \endgroup +% +% as the last thing in your document. +% +% **************************************** +% * CHANGE LOG * +% **************************************** +% +% JL Modified to include \addtoendnotes. JL, 10/22/89. +% +% JK Modification by J"org Knappen 25. 2. 1991: +% JK +% JK Introduced \notesname in the spirit of international \LaTeX. +% JK \notesname is set per default to be {Notes}, but can easily +% JK be redifined, e.g. for german language +% JK \renewcommand{\notesname}{Anmerkungen} +% +% DW Modification by Dominik Wujastyk, London, 19 September 1991: +% DW +% DW Moved the line +% DW \edef\@currentlabel{\csname p@endnote\endcsname\@theenmark} +% DW out of the definition of \@endnotetext and into the definition +% DW of \@doanenote so that \label and \ref commands work correctly in +% DW endnotes. Otherwise, the \label just pointed to the last section +% DW heading (or whatever) preceding the \theendnotes command. +% +% JL Revised documentation and macros. 24 Sept 1991. +% +% **************************************** +% * ENDNOTE COMMANDS * +% **************************************** +% +% +% \endnote{NOTE} : User command to insert a endnote. +% +% \endnote[NUM]{NOTE} : User command to insert a endnote numbered +% NUM, where NUM is a number -- 1, 2, +% etc. For example, if endnotes are numbered +% *, **, etc. within pages, then \endnote[2]{...} +% produces endnote '**'. This command does not +% step the endnote counter. +% +% \endnotemark[NUM] : Command to produce just the endnote mark in +% the text, but no endnote. With no argument, +% it steps the endnote counter before generating +% the mark. +% +% \endnotetext[NUM]{TEXT} : Command to produce the endnote but no +% mark. \endnote is equivalent to +% \endnotemark \endnotetext . +% +% \addtoendnotes{TEXT} : Command to add text or commands to current +% endnotes file: for inserting headings, +% pagebreaks, and the like into endnotes +% sections. TEXT a moving argument: +% \protect required for fragile commands. +% +% **************************************** +% * ENDNOTE USER COMMANDS * +% **************************************** +% +% Endnotes use the following parameters, similar to those relating +% to footnotes: +% +% \enotesize : Size-changing command for endnotes. +% +% \theendnote : In usual LaTeX style, produces the endnote number. +% +% \@theenmark : Holds the current endnote's mark--e.g., \dag or '1' or 'a'. +% +% \@makeenmark : A macro to generate the endnote marker from \@theenmark +% The default definition is \hbox{$^\@theenmark$}. +% +% \@makeentext{NOTE} : +% Must produce the actual endnote, using \@theenmark as the mark +% of the endnote and NOTE as the text. It is called when effectively +% inside a \parbox, with \hsize = \columnwidth. For example, it might +% be as simple as +% $^{\@theenmark}$ NOTE +% +% +% **************************************** +% * ENDNOTE PSEUDOCODE * +% **************************************** +% +% \endnote{NOTE} == +% BEGIN +% \stepcounter{endnote} +% \@theenmark :=G eval (\theendnote) +% \@endnotemark +% \@endnotetext{NOTE} +% END +% +% \endnote[NUM]{NOTE} == +% BEGIN +% begingroup +% counter endnote :=L NUM +% \@theenmark :=G eval (\theendnote) +% endgroup +% \@endnotemark +% \@endnotetext{NOTE} +% END +% +% \@endnotetext{NOTE} == +% BEGIN +% write to \@enotes file: "\@doanenote{ENDNOTE MARK}" +% begingroup +% \next := NOTE +% set \newlinechar for \write to \space +% write to \@enotes file: \meaning\next +% (that is, "macro:->NOTE) +% endgroup +% END +% +% \addtoendnotes{TEXT} == +% BEGIN +% open endnotes file if not already open +% begingroup +% let \protect to \string +% set \newlinechar for \write to \space +% write TEXT to \@enotes file +% endgroup +% END +% +% \endnotemark == +% BEGIN \stepcounter{endnote} +% \@theenmark :=G eval(\theendnote) +% \@endnotemark +% END +% +% \endnotemark[NUM] == +% BEGIN +% begingroup +% endnote counter :=L NUM +% \@theenmark :=G eval(\theendnote) +% endgroup +% \@endnotemark +% END +% +% \@endnotemark == +% BEGIN +% \leavevmode +% IF hmode THEN \@x@sf := \the\spacefactor FI +% \@makeenmark % put number in main text +% IF hmode THEN \spacefactor := \@x@sf FI +% END +% +% \endnotetext == +% BEGIN \@theenmark :=G eval (\theendnote) +% \@endnotetext +% END +% +% \endnotetext[NUM] == +% BEGIN begingroup counter endnote :=L NUM +% \@theenmark :=G eval (\theendnote) +% endgroup +% \@endnotetext +% END +% +% **************************************** +% * ENDNOTE MACROS * +% **************************************** +% +\@definecounter{endnote} +\def\theendnote{\arabic{endnote}} + +% Default definition +\def\@makeenmark{\hbox{$^{\@theenmark}$}} + +\newdimen\endnotesep + +\def\endnote{\@ifnextchar[{\@xendnote}{\stepcounter + {endnote}\xdef\@theenmark{\theendnote}\@endnotemark\@endnotetext}} + +\def\@xendnote[#1]{\begingroup \c@endnote=#1\relax + \xdef\@theenmark{\theendnote}\endgroup + \@endnotemark\@endnotetext} + +% Here begins endnote code that's really different from the footnote +% code of LaTeX. + +\let\@doanenote=0 +\let\@endanenote=0 + +\newwrite\@enotes +\newif\if@enotesopen \global\@enotesopenfalse + +\def\@openenotes{\immediate\openout\@enotes=\jobname.ent\relax + \global\@enotesopentrue} + +% The stuff with \next and \meaning is a trick from the TeXbook, 382, +% there intended for setting verbatim text, but here used to avoid +% macro expansion when the footnote text is written. \next will have +% the entire text of the footnote as one long line, which might well +% overflow limits on output line length; the business with \newlinechar +% makes every space become a newline in the \@enotes file, so that all +% of the lines wind up being quite short. + +\long\def\@endnotetext#1{% + \if@enotesopen \else \@openenotes \fi + \immediate\write\@enotes{\@doanenote{\@theenmark}}% + \begingroup + \def\next{#1}% + \newlinechar='40 + \immediate\write\@enotes{\meaning\next}% + \endgroup + \immediate\write\@enotes{\@endanenote}} + +% \addtoendnotes works the way the other endnote macros probably should +% have, requiring the use of \protect for fragile commands. + +\long\def\addtoendnotes#1{% + \if@enotesopen \else \@openenotes \fi + \begingroup + \newlinechar='40 + \let\protect\string + \immediate\write\@enotes{#1}% + \endgroup} + +% End of unique endnote code + +\def\endnotemark{\@ifnextchar[{\@xendnotemark + }{\stepcounter{endnote}\xdef\@theenmark{\theendnote}\@endnotemark}} + +\def\@xendnotemark[#1]{\begingroup \c@endnote #1\relax + \xdef\@theenmark{\theendnote}\endgroup \@endnotemark} + +\def\@endnotemark{\leavevmode\ifhmode + \edef\@x@sf{\the\spacefactor}\fi \@makeenmark + \ifhmode\spacefactor\@x@sf\fi\relax} + +\def\endnotetext{\@ifnextchar + [{\@xendnotenext}{\xdef\@theenmark{\theendnote}\@endnotetext}} + +\def\@xendnotenext[#1]{\begingroup \c@endnote=#1\relax + \xdef\@theenmark{\theendnote}\endgroup \@endnotetext} + + +% \theendnotes actually prints out the endnotes. + +% The user may want separate endnotes for each chapter, or a big +% block of them at the end of the whole document. As it stands, +% either will work; you just say \theendnotes wherever you want the +% endnotes so far to be inserted. However, you must add +% \setcounter{endnote}{0} after that if you want subsequent endnotes +% to start numbering at 1 again. + +% \enoteformat is provided so user can specify some special formatting +% for the endnotes. It needs to set up the paragraph parameters, start +% the paragraph, and print the label. The \leavemode stuff is to make +% and undo a dummy paragraph, to get around the games \section* +% plays with paragraph indenting. + +%%%%%%changes-----------------------------------------------------ckap- +%%% So that the style is compatible with that of ASL. +%%% +\def\notesname{NOTES} + +\def\enoteheading% +{\ifnum\@mainsize=10 % (at 10pt, the normal for the jsl) + \par + \vspace{18pt}% + \centerline{\fontsize{7}{7\p@}\selectfont \notesname}% + \nobreak\vspace*{5pt}\nobreak% + \fontsize{8}{10\p@}\selectfont\relax +\else % (at 11pt or bigger) + \par + \vspace{20pt}% + \centerline{\fontsize{8}{8\p@}\selectfont \notesname}% + \nobreak\vspace*{6pt}\nobreak% + \fontsize{9}{11\p@}\selectfont\relax +\fi +} + +\def\enoteformat{\rightskip\z@ \leftskip\z@ % + \leavevmode\llap{\hbox{$^{\@theenmark}$}}} + +\def\enotesize{\footnotesize} + +% Restarts counting the endnotes as 1,2,... +\def\startoverendnotes{\setcounter{endnote}{0}} + +% The definition of \ETC. is needed only for versions of TeX prior +% to 2.992. Those versions limited \meaning expansions to 1000 +% characters; in 2.992 and beyond there is no limit. At Brandeis the +% BIGLATEX program changed the code in the token_show procedure of +% TeX to eliminate this problem, but most ``big'' versions of TeX +% will not solve this problem. + +\def\theendnotes% +{\immediate\closeout\@enotes \global\@enotesopenfalse + \begingroup + \makeatletter + \def\@doanenote##1##2>{\def\@theenmark{##1}\par\begingroup + \edef\@currentlabel{\csname p@endnote\endcsname\@theenmark} %DW + \enoteformat} + \def\@endanenote{\par\endgroup}% + \def\ETC.{\errmessage{Some long endnotes will be truncated; % + use BIGLATEX to avoid this}% + \def\ETC.{\relax}} + \enoteheading + \enotesize + \@input{\jobname.ent}% + \endgroup% + } +%%% +%%%%%%end changes-------------------------------------------------ckap- + +% End of file aslnotes.sty, version 1.0, inserted. +} + + + +%%%==1B. The default (no option) ====================================== +\let\endnote=\footnote +\let\endnotemark=\footnotemark +\let\endnotetext=\footnotetext +\let\addtoendnotes=\@gobble +\let\theendnotes=\empty +\let\startoverendnotes=\empty + + +%%%==1C. Option endnotes ============================================== +\DeclareOption{endnotes}{ +\ExecuteOptions{stdnotes} +\let\footnote=\endnote +\setcounter{endnote}{0} +} + + +%%%==1D. Option mixednotes ============================================ +% The footnotes are numbered as 1,2,..,9,1,2,..,9,1,2,.. etc. +% Attention: This way, for all k=1,2,.. : after the 9k'th footnote and +% before the (9k+1)'th footnote the footnote counter is 0. +\DeclareOption{mixednotes}{ +\ExecuteOptions{stdnotes} +\newcounter{prevfootnotepage} +\def\thefootnote{% + \fnsymbol{footnote}% + \ifnum\value{footnote}>8\setcounter{footnote}{0}\fi} +} + +% endntsextra code + +%-------------------------------------- Additional commands (mod) + +% Add the Greek cap Ypsilon +\def\Ypsilon{\char7} + +% In xfonts, \boldsymbol is redefined because the font-coding +% has an error. + +% For the game quantifier, requires rotate.sty +\def\game{\rotate[r]{\rotate[r]{$\mathsf{G}$}}} + +% For arithmetic subtraction +\newcommand\dotminus{\mathop{\mbox{$-^{\hspace{-.5em}\cdot}\,\,$}}} + +% For the boldface \Delta, \Pi,. in descriptive set theory, to +% make them more noticeably different from the lightface + +% For the boldface symbols \Pi, \Sigma, \Delta, etc. in DST +\newcommand\tboldsymbol[1]{\underset{\widetilde{}}{\boldsymbol{#1}}} + +% To get McCusker to print correctly in the title, headings, +% and Tables of contents, use \author{Guy \Mc Cusker} +\def\Mc{{\sc Mc}} +\def\Mac{{\sc Mac}} +% This preserves the small cap font when the \uppercase command is applied, +% and the c turns out to be a \sc C + +\def\cmr#1{{\fontfamily{cmr}\selectfont #1}} % For single symbols in CMR +% Use \cmr{\pounds} for \pounds + +% The \implies symbol comes out wrong with Times, redefine with cmr: + +\def\implies{\,\text{\fontfamily{cmr}\fontshape{n}\selectfont\char61% +$\joinrel\Rightarrow\,$}} + +% Boldface italics are used often, so we have a command for them: +\def\bfit{\bfseries\itshape} + +% LaTeX symbols are available, because latexsym.sty has been loaded. +% These are the following: +% \mho \Join \Box \Diamond \leadsto \sqsubset \sqsupset +% \lhd \unlhd \rhd \unrhd +% Additional symbols from amsmath + +% Prints an OK? sign on the margin +\def\ok{\marginpar{\text{OK?}}} + +% Use to leave space so lines line up +% This should have the sanme effect as \phantom +% but is left here for compatibility +\newlength{\ypushlen} +\def\ypush#1{\settowidth{\ypushlen}{#1}\hspace*{\ypushlen}} + +% \ytext{text1}{text2} puts text2 at the right end of a box +% of size text1, in normalshape, roman. +% For handsetting lists, when necessary. +\newlength{\yboxlen} +\def\ytext#1#2{\settowidth{\yboxlen}{#1}% +\makebox[\yboxlen][r]{\normalfont #2}} + +% Eqnarray modification, tighter and with a third column +%%% labels work fine, but the \label command must be given +%%% after the tag command +%%% fleqn does not work in align + +% to detect \label - \tag error in eqnarray +\newif\iflabelgiven + +% Fix the standard label definition +\let\standardlabel\label + +\def\labeltagerr{% +\errmessage{^^J +The sequence label{..} +tag{..}^^J +is not allowed in the eqnarray environment^^J +give tag{..} +label{..} instead to get right numbering^^J +Hit X to stop and correct the error^^J +}} + +% to detect if \tag has been given +% the command \asl@tagfalse is never needed, because of the locality +% of the \@@eqnrc redefinition, which works only for the line +% in which the tag occurs +\newif\ifasl@tag + + +% the redone eqnarray environment +\def\eqnarray{% +% Adjust label to record \labelgiven +\def\label##1{\labelgiventrue\standardlabel{##1}} +% keep the old definition of \@currentlabel +% \let\old@currentlabel=\@currentlabel % 9/14/2000, ynm do not +\let\notag\nonumber % so notag can be used +%% make the tag definition local to the eqnarray environment +\def\tag##1{% +% \label -\tag error handling +\iflabelgiven\immediate\labeltagerr \fi +\global\asl@tagtrue\gdef\tagsymbol{##1}% +\xdef\@currentlabel{\tagsymbol} +\iftagsleft@\addtocounter{equation}{-1} +\else% +\def\@@eqncr{ +\let\reserved@a\relax + \ifcase\@eqcnt \def\reserved@a{& & &}\or \def\reserved@a{& &}% + \or \def\reserved@a{&}\else + \let\reserved@a\@empty + \@latex@error{Too many columns in eqnarray environment}\@ehc\fi + \reserved@a \ifasl@tag(\tagsymbol)\else\fi + \global\@eqnswtrue\global\@eqcnt\z@\cr}\fi} +%%% end of the local tag + \stepcounter{equation}% + \def\@currentlabel{\p@equation\theequation}% + \global\@eqnswtrue + \m@th + \global\@eqcnt\z@ + \if@fleqn\else\tabskip\@centering\fi + \let\\\@eqncr + $$\everycr{}\halign to\displaywidth\bgroup% +\hskip\@centering$\displaystyle\tabskip\z@skip% +\hskip \leftmargini{##}$\@eqnsel&% + \global\@eqcnt\@ne\hskip.5\arraycolsep\hfil$\displaystyle{##}$\hfil% +&\hskip .5\arraycolsep$\displaystyle{##}\hskip \leftmargini$\hfil% +&\global\@eqcnt\tw@% +$\displaystyle{##}$\hfil\tabskip\@centering% +&\global\@eqcnt\thr@@\hb@xt@\z@\bgroup\hss##\egroup% +\gdef\@currentlabel{\p@equation\theequation}% +\labelgivenfalse +\tabskip\z@skip% +\cr% +%% restore the standard def. of \@currentsymbol +% \gdef\@currentlabel{\old@currentlabel} 9/14/00, ynm do not +} + +% To place a qedsymbol in the last equation of a proof + +\def\proofend{\global\qedneededfalse +\\[-\@back] && % This is the fake entry +\def\@@eqncr{\let\@tempa\relax + \ifcase\@eqcnt \def\@tempa{& & &}\or \def\@tempa{& &} + \else \def\@tempa{&}\fi + \@tempa \if@eqnsw{\qedsymbol}\fi + \global\@eqnswtrue\global\@eqcnt\z@\cr}} + +% endproofeqnarray environment, for compatibility +\@namedef{endproofeqnarray}{\def\@eqncr{\@seqncr}\eqnarray} +\@namedef{endendproofeqnarray}{% + \proofend\endeqnarray} + +\@namedef{endproofeqnarray*}{\def\@eqncr{\nonumber\@seqncr}\eqnarray} +\@namedef{endendproofeqnarray*}{% +\global\proofend\endeqnarray} + +% The next command can be used to make the entry not count +% in the centering, for example +% \begin{eqnarray} +% a &=& b &\text{comment}\\ +% c &=& \forget{very long formula}\\ +% e &=& f(y) &\text{comment} +% \end{eqnarray} +% which lines up the comments as they appear to be. +\def\forget#1{\protect\makebox[0pt]{$#1$}} + +%-------------------------------------- Heads + +% First page has only the page number, but normalsize +\def\ps@firstpage{\ps@plain +\def\@oddfoot{% % jsl-l +\normalfont\fontsize{8}{10\p@}\selectfont \hfil\thepage\hfil + \global\topskip\normaltopskip}% + \let\@evenfoot\@oddfoot + \def\@oddhead{\@serieslogo\hss}% + \let\@evenhead\@oddhead % in case an article starts on a left-hand page +} + +\def\ps@headings{\ps@empty + \def\@evenhead{\normalfont\fontsize{10}{13\p@}\selectfont + \rlap{\thepage}\hfil +\fontsize{7}{8\p@}\selectfont\leftmark{}{} \hfil}% + \def\@oddhead{\normalfont\fontsize{7}{8\p@}\selectfont + \hfil\rightmark{}{} \hfil + \fontsize{10}{13\p@}\selectfont \llap{\thepage}}% + \let\@mkboth\markboth +} + +\pagestyle{headings} % Initialize again + +%%%%%%%%%%%%%%%% For the production version, aslprod.sty + +% Definition of commands redefined in aslprod.sty + +\def\typesetter#1{} +\def\papertype#1{} +\def\revauthor#1{} +\def\revdate#1{} + +\def\@location{} % There is also a change in the definition of \location + + +\InputIfFileExists{aslprod.sty}{} + +%------------------------------- End of asl.sty code + +%******************** Font Definitions for Monotype Times *************% + +%-------------------------------- OT1 Definitions +\DeclareFontFamily{OT1}{xgt}{} + +\DeclareFontShape{OT1}{xgt}{b}{n}{ + <-> gamatb +}{} + +\DeclareFontShape{OT1}{xgt}{b}{sc}{ + <-> sub * xgt/b/n % corr. 1/16/2000, ynm +}{} + +\DeclareFontShape{OT1}{xgt}{b}{sl}{<->ssub * xgt/b/it}{} + +\DeclareFontShape{OT1}{xgt}{b}{it}{ + <-> gamatbti +}{} + +\DeclareFontShape{OT1}{xgt}{m}{n}{ + <-> gamatr +}{} + +\DeclareFontShape{OT1}{xgt}{m}{sc}{ + <-> gamatcsc +}{} + +\DeclareFontShape{OT1}{xgt}{m}{sl}{<->ssub * xgt/m/it}{} + +\DeclareFontShape{OT1}{xgt}{m}{it}{ + <-> gamatti +}{} + +%% Fontshape scr gives true script. + +\DeclareFontShape{OT1}{xgt}{m}{scr}{ + <-> gamascr +}{} + +%% Fontshape th sets in italics but with Roman punctuation. + +\DeclareFontShape{OT1}{xgt}{m}{th}{ + <-> gamatth +}{} + +\DeclareFontShape{OT1}{xgt}{bx}{n}{<->ssub * xgt/b/n}{} +\DeclareFontShape{OT1}{xgt}{bx}{sc}{<->ssub * xgt/b/sc}{} +\DeclareFontShape{OT1}{xgt}{bx}{sl}{<->ssub * xgt/b/it}{} +\DeclareFontShape{OT1}{xgt}{bx}{it}{<->ssub * xgt/b/it}{} +\DeclareFontShape{OT1}{xgt}{l}{n}{<->ssub * xgt/m/n}{} +\DeclareFontShape{OT1}{xgt}{l}{sc}{<->ssub * xgt/m/sc}{} +\DeclareFontShape{OT1}{xgt}{l}{sl}{<->ssub * xgt/m/sl}{} +\DeclareFontShape{OT1}{xgt}{l}{it}{<->ssub * xgt/m/it}{} +\DeclareFontShape{OT1}{xgt}{bx}{th}{<->ssub * xgt/b/it}{} % for bold in thms. + + +%------------------------------------- OMS Definitions + +\DeclareFontFamily{OMS}{xgt}{\skewchar\font48 } +\DeclareFontShape{OMS}{xgt}{m}{n} + {<-> ssub * cmsy/m/n}{} +\DeclareFontShape{OMS}{xgt}{m}{it} + {<-> ssub * cmsy/m/n}{} +\DeclareFontShape{OMS}{xgt}{m}{sl} + {<-> ssub * cmsy/m/n}{} +\DeclareFontShape{OMS}{xgt}{m}{sc} + {<-> ssub * cmsy/m/n}{} +\DeclareFontShape{OMS}{xgt}{bx}{n} + {<-> ssub * cmsy/b/n}{} +\DeclareFontShape{OMS}{xgt}{bx}{it} + {<-> ssub * cmsy/b/n}{} +\DeclareFontShape{OMS}{xgt}{bx}{sl} + {<-> ssub * cmsy/b/n}{} +\DeclareFontShape{OMS}{xgt}{bx}{sc} + {<-> ssub * cmsy/b/n}{} + +%------------------------------------------ OML Definitions + +\DeclareFontFamily{OML}{xgt}{\skewchar\font127 } + +\DeclareFontShape{OML}{xgt}{m}{it}{ + <-> gamatmi + }{} +\DeclareFontShape{OML}{xgt}{b}{it}{% + <-> gamatmib + }{} + +% This is the true script + +\DeclareFontShape{OML}{xgt}{m}{scr}{ + <-> gamascr +}{} + +\DeclareFontShape{OML}{xgt}{bx}{it} + {<-> ssub * xgt/b/it}{} + +%% Includes psamsfonts and all corrections needed for the psfonts + +\InputIfFileExists{amsbug.sty}{} + + +%-------------------------------------------- +\ExecuteOptions{leqno} + +\ProcessOptions\relax +\RequirePackage{latexsym} + +% Load amssymb.sty (which loads amsfonts.sty) if they exist. +\def\amssymbtest{1} +\IfFileExists{amssymb.sty}{\gdef\amssymbtest{0}}% +{\GenericWarning{}{WARNING:^^JPackage amssymb.sty not found +^^Jso AMS fonts not loaded.}} + +\if\amssymbtest 0\let\mathfrak\relax\RequirePackage{amssymb}\fi + +% Do not allow compatibility mode +%\if@compatibility \else\endinput\fi +%\def\tiny{\Tiny} +%\def\defaultfont{\normalfont} +%\def\rom{\textup} +\endinput +%% +%% End of file `asl.cls'. diff --git a/nachlass/collected_dew_materials/aug25,2020/#n.tex# b/nachlass/collected_dew_materials/aug25,2020/#n.tex# new file mode 100644 index 0000000..c0699c7 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/#n.tex# @@ -0,0 +1,136 @@ +% 2020 Aug 25 3.01 pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +\Large +\baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + +On Aug 20, I reported that after I gave +Robert a class about logic (over internet), + I developped a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an Aug 24 class, I developped a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Opps'' + Here False, True, Zippy and Opps carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tommorow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developped after talking to Robert an improved + proof of Enderton's + A-version of the Compleness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} \ No newline at end of file diff --git a/nachlass/collected_dew_materials/aug25,2020/#silly# b/nachlass/collected_dew_materials/aug25,2020/#silly# new file mode 100644 index 0000000..661d8ed --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/#silly# @@ -0,0 +1,140 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a +%%% xxx +glitch + in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/done b/nachlass/collected_dew_materials/aug25,2020/done new file mode 100644 index 0000000..ebeacaa --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/done @@ -0,0 +1,137 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/n.aux b/nachlass/collected_dew_materials/aug25,2020/n.aux new file mode 100644 index 0000000..f23e546 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/n.aux @@ -0,0 +1 @@ +\relax diff --git a/nachlass/collected_dew_materials/aug25,2020/n.log b/nachlass/collected_dew_materials/aug25,2020/n.log new file mode 100644 index 0000000..9566035 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/n.log @@ -0,0 +1,157 @@ +This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020) (preloaded format=pdflatex 2020.4.7) 25 AUG 2020 15:11 +entering extended mode + restricted \write18 enabled. + %&-line parsing enabled. +**n +(./n.tex +LaTeX2e <2020-02-02> patch level 5 +L3 programming layer <2020-03-06> +(/usr/local/texlive/2020/texmf-dist/tex/latex/base/latex209.def +File: latex209.def 2018/08/11 v0.54 Standard LaTeX file + + + Entering LaTeX 2.09 COMPATIBILITY MODE + ************************************************************* + !!WARNING!! !!WARNING!! !!WARNING!! !!WARNING!! + + This mode attempts to provide an emulation of the LaTeX 2.09 + author environment so that OLD documents can be successfully + processed. 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Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/n.tex~ b/nachlass/collected_dew_materials/aug25,2020/n.tex~ new file mode 100644 index 0000000..c981657 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/n.tex~ @@ -0,0 +1,137 @@ +% 2020 Aug 25 3.1 pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +\Large +\baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/o.tex b/nachlass/collected_dew_materials/aug25,2020/o.tex new file mode 100644 index 0000000..ebeacaa --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/o.tex @@ -0,0 +1,137 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/r.tex b/nachlass/collected_dew_materials/aug25,2020/r.tex new file mode 100644 index 0000000..ebeacaa --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/r.tex @@ -0,0 +1,137 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/restart b/nachlass/collected_dew_materials/aug25,2020/restart new file mode 100644 index 0000000..b4997d0 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/restart @@ -0,0 +1,143 @@ +% 2020 Aug 25 1.30 pm + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 20,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + \parskip 4 pt + + After giving Robert some classes about logic (over internet), + I developped a much refined undersanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). I NOW FULLY understand how it can be used to prove the + conjecture about the $\Theta$ + primitive in my arXiv paper + + The old probability argument would also work, but a cleaner + proof follows when using Compactness. Both show that + $\Theta$ + arithmetic is a self justifying formalism + when Enderton's deductive calculus for First Order logic is + used. (Both employ ZF set theory to prove the consistency preservation + property holds for my self justifying $\Theta$ arithetic axiom system.) + + The result holds for other Hilbert-style deductive methods, + but Enderton's formalism simplifies the + proof because it uses only modus ponens as a rule of inference + (thereby making propositional calculus easier to apply + to what Enderton has called ``prime formulae'' ). + + This proof was designed by me without the help of Nate and Cameron. + I am tentatively planning to allow them co-authorship if they write + up the paper. (I will not object to listing names in alphabetical + order if they do the write-up AND THE PAPER EXPLAINS MY ROLE IN CONCEIVING + the result.) + + The latter is needed because I want to get a new job + (and this will be challenging when I am 72 years old and + suffering from macular eye degeration) + I am actually being quite generous in this offer because they + can use the tex files from my arXiv paper and Florida articles to + AS ROUGH DRAFTS to write some sections. + + + + + + + \end{document} + + + diff --git a/nachlass/collected_dew_materials/aug25,2020/silly b/nachlass/collected_dew_materials/aug25,2020/silly new file mode 100644 index 0000000..661d8ed --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/silly @@ -0,0 +1,140 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a +%%% xxx +glitch + in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/silly-bak b/nachlass/collected_dew_materials/aug25,2020/silly-bak new file mode 100644 index 0000000..661d8ed --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/silly-bak @@ -0,0 +1,140 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a +%%% xxx +glitch + in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/silly~ b/nachlass/collected_dew_materials/aug25,2020/silly~ new file mode 100644 index 0000000..ebeacaa --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/silly~ @@ -0,0 +1,137 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/start b/nachlass/collected_dew_materials/aug25,2020/start new file mode 100644 index 0000000..5797d51 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/start @@ -0,0 +1,141 @@ + % 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 20,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + \parskip 4 pt + + After giving Robert some classes about logic (over internet), + I developped a much refined undersanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). I NOW FULLY understand how it can be used to prove the + conjecture about the $\Theta$ + primitive in my arXiv paper + + The old probability argument would also work, but a cleaner + proof follows when using Compactness. Both show that + $\Theta$ + arithmetic is a self justifying formalism + when Enderton's deductive calculus for First Order logic is + used. (Both employ ZF set theory to prove the consistency preservation + property holds for my self justifying $\Theta$ arithetic axiom system.) + + The result holds for other Hilbert-style deductive methods, + but Enderton's formalism simplifies the + proof because it uses only modus ponens as a rule of inference + (thereby making propositional calculus easier to apply + to what Enderton has called ``prime formulae'' ). + + This proof was designed by me without the help of Nate and Cameron. + I am tentatively planning to allow them co-authorship if they write + up the paper. (I will not object to listing names in alphabetical + order if they do the write-up AND THE PAPER EXPLAINS MY ROLE IN CONCEIVING + the result.) + + The latter is needed because I want to get a new job + (and this will be challenging when I am 72 years old and + suffering from macular eye degeration) + I am actually being quite generous in this offer because they + can use the tex files from my arXiv paper and Florida articles to + AS ROUGH DRAFTS to write some sections. + + + + + + + \end{document} + + + diff --git a/nachlass/collected_dew_materials/aug25,2020/temp.tex b/nachlass/collected_dew_materials/aug25,2020/temp.tex new file mode 100644 index 0000000..da5dc9e --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/temp.tex @@ -0,0 +1,34 @@ + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/temp.tex.bak b/nachlass/collected_dew_materials/aug25,2020/temp.tex.bak new file mode 100644 index 0000000..abcde28 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/temp.tex.bak @@ -0,0 +1,34 @@ + +On Aug 20, I reported that after I gave +Robert a class about logic (over internet), + I developped a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an Aug 24 class, I developped a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Opps'' + Here False, True, Zippy and Opps carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tommorow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developped after talking to Robert an improved + proof of Enderton's + A-version of the Compleness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/temp.tex~ b/nachlass/collected_dew_materials/aug25,2020/temp.tex~ new file mode 100644 index 0000000..07a00b9 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/temp.tex~ @@ -0,0 +1,136 @@ +% 2020 Aug 25 2.55 pm + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +\Large +\baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + +On Aug 20, I reported that after I gave +Robert a class about logic (over internet), + I developped a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an Aug 24 class, I developped a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Opps'' + Here False, True, Zippy and Opps carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tommorow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developped after talking to Robert an improved + proof of Enderton's + A-version of the Compleness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/v1 b/nachlass/collected_dew_materials/aug25,2020/v1 new file mode 100644 index 0000000..9b7cc49 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/v1 @@ -0,0 +1,170 @@ +% 2020 Aug 25 1.30 pm + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 20,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +\Large +\baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + +On Aug 20, I reported + After giving Robert some classes about logic (over internet), + I developped a much refined undersanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an Aug 24 class, I developped a second improved + proof of preceding that uses a logic with 2.2 logic symbols, where the + symbol submols is an ``unknown'' symbol when a Boolean value is unknown. + called ``Zippy'' and the fourth symbol is a never-employed + symbol ``Opps'' Here False, True, Zippy and Opps caried the numeral values of 0, 1, 2, and 3 in a ``quadruple'' analog of a decimal encoding. + + Also, I discovered yesterday. I don.t have time to go into details here + of either of the above because I need to do my taxes today. I also + want to record that I plan to telephone Peter Bloniarz tommorow + about a glitch in New York State security that he may not know about. + It is that workrs in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + pbvious security breach is possible. + + \end{document} + \newpage + + \section{Most of Old Notes with frist pargarph Deleted} + + + + I NOW FULLY understand how it can be used to prove the + conjecture about the $\Theta$ + primitive in my arXiv paper + + The ol + probability argument would also work, but a cleaner + proof follows when using Compactness. Both show that + $\Theta$ + arithmetic is a self justifying formalism + when Enderton's deductive calculus for First Order logic is + used. (Both employ ZF set theory to prove the consistency preservation + property holds for my self justifying $\Theta$ arithetic axiom system.) + + The result holds for other Hilbert-style deductive methods, + but Enderton's formalism simplifies the + proof because it uses only modus ponens as a rule of inference + (thereby making propositional calculus easier to apply + to what Enderton has called ``prime formulae'' ). + + This proof was designed by me without the help of Nate and Cameron. + I am tentatively planning to allow them co-authorship if they write + up the paper. (I will not object to listing names in alphabetical + order if they do the write-up AND THE PAPER EXPLAINS MY ROLE IN CONCEIVING + the result.) + + The latter is needed because I want to get a new job + (and this will be challenging when I am 72 years old and + suffering from macular eye degeration) + I am actually being quite generous in this offer because they + can use the tex files from my arXiv paper and Florida articles to + AS ROUGH DRAFTS to write some sections. + + + + + + + \end{document} + + + diff --git a/nachlass/collected_dew_materials/aug25,2020/v2-before-lunch b/nachlass/collected_dew_materials/aug25,2020/v2-before-lunch new file mode 100644 index 0000000..193cbbc --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/v2-before-lunch @@ -0,0 +1,134 @@ +% 2020 Aug 25 2.15 pm + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +\Large +\baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + +On Aug 20, I reported that after I gave +Robert a class about logic (over internet), + I developped a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an Aug 24 class, I developped a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, Called ``Opps'' + Here False, True, Zippy and Opps carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also developped after talking to robert an improved + proof of Enderton's + A-version of the Compleness Theorem + I don't have time to go into details here + of either of the above because I need to do my taxes today. + + I also + want to record that I plan to telephone Peter Bloniarz tommorow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/v3-also-before-lunch b/nachlass/collected_dew_materials/aug25,2020/v3-also-before-lunch new file mode 100644 index 0000000..211d1d7 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/v3-also-before-lunch @@ -0,0 +1,136 @@ +% 2020 Aug 25 2.35 pm + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +\Large +\baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + +On Aug 20, I reported that after I gave +Robert a class about logic (over internet), + I developped a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an Aug 24 class, I developped a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, Called ``Opps'' + Here False, True, Zippy and Opps carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tommorow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developped after talking to Robert an improved + proof of Enderton's + A-version of the Compleness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/v4 b/nachlass/collected_dew_materials/aug25,2020/v4 new file mode 100644 index 0000000..c981657 --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/v4 @@ -0,0 +1,137 @@ +% 2020 Aug 25 3.1 pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +\Large +\baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/v5 b/nachlass/collected_dew_materials/aug25,2020/v5 new file mode 100644 index 0000000..ebeacaa --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/v5 @@ -0,0 +1,137 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/aug25,2020/v5-done b/nachlass/collected_dew_materials/aug25,2020/v5-done new file mode 100644 index 0000000..ebeacaa --- /dev/null +++ b/nachlass/collected_dew_materials/aug25,2020/v5-done @@ -0,0 +1,137 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/baltimore.tex b/nachlass/collected_dew_materials/baltimore.tex new file mode 100644 index 0000000..3735acc --- /dev/null +++ b/nachlass/collected_dew_materials/baltimore.tex @@ -0,0 +1,139 @@ +%%%% septem10 correction 10.2am MISSING WORD FIX UP + + + +\documentclass[bsl,meeting]{asl} + +\pagestyle{plain} + +\def\urladdr#1{\endgraf\noindent{\it URL Address}: {\tt #1}.} + +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\NP}{} + +\begin{document} +\thispagestyle{empty} + + +\NP +\absauth{Dan E. Willard} +\meettitle{On +the Utility of +Partial Evasions +of the Second Incompleteness Theorem in the Modern +Digital Era} +\affil{Computer Science \& Mathematics Departments, +University at Albany, NY 12222} +\meetemail{dwillard@albany.edu} + + \normalsize + % \Large +% \baselineskip = 2.0 \normalbaselineskip + \baselineskip = 1.0 \normalbaselineskip + +We have published several articles +about +generalizations of the Second Incompleteness + Theorem +and partial +evasions of it under +formalisms that own a partial +knowledge about their own self-consistency. +This research has included six articles +in the JSL and APAL plus several additional papers, +all of which are +cited by us in +paper \cite{ww18}. +In a context where $\alpha$ is a set of proper axioms and +$d$ is one of several possible deduction methods, the ordered pair +$(\alpha,d)$ will be called {\bf Self Justifying} iff: +\begin{description} + \item[ i ] one of $~( \alpha , d )$'s theorems +(or possibly one of $\alpha$'s axioms) +will +state that the deduction method $ \, d, \, $ applied to the +axiom +system $ \, \alpha, \, $ +is formally consistent. +\item[ ii ] + and also the axiom system $ \, \alpha \, $ is actually consistent. +\end{description} +We noted the +Fixed Point Theorem enables one to map +any ordered pair $(\alpha,d)$ onto an axiom system $\alpha^d$ +that includes all $\alpha$'s axioms plus an added axiom +statement declaring: +\begin{quote} +$\oplus~~~$ {\it +``There is no proof +(using +$d$'s deduction method) +of $0=1$ +from the {\it union} + of +the + axiom system $\, \alpha \, $ +with {\it this} +statement $~\oplus ~$ (looking at itself)''.} +\end{quote} +The difficulty with statement +$\oplus$ is that it is typically false, {\bf although it can be quite easily +encoded.} This is because if the ordered pair $(\alpha,d)$ is too +strong then the system $\alpha^d$ will be rendered +inconsistent via a classic +G\"{o}del + Diagonalization construction (e.g. +causing $(\alpha^d,d)$ to violate Part-ii of +Self-Justification's + definition). + +These issues raise {\bf legitimate concerns} +about whether boundary-case +exceptions to the Second Incompleteness Theorem are +an awkward wrinkle +from a theoretical standpoint. + Aside from generalizing our earlier +results, our new paper suggests its proposals can be + significant from a {\it pragmatic perspective.} +For instance, + the late physicist +Stephen Hawking +has predicted that global warming +and other dangers will likely be so severe +that civilization in our Solar System +will find it difficult to persist without +employing + artificially +intelligent +computers, +{\it in at least some respect.} + +One would +ideally + prefer computers to imitate a human's approximate +instinctive appreciation +of his own consistency. +Our paper \cite{ww18} observes self-justifying +computers can do this in a pragmatic manner, +when $(\alpha,d)$ is sufficiently weak. +Moreover +{\it with quite comparable efficiency}, our formalisms can +nicely + reconstruct isomorphic +analogs of +all the $\Pi_1$ theorems of Peano Arithmetic under a +slightly revised language. +\begin{thebibliography}{99} +\bibitem{ww18} +Dan E. Willard, +``About the +Chasm Separating the Goals of +Hilbert's Consistency Program From the +Second Incompleteness Theorem'' +http://arXiv.org/abs/1807.04717 + +% (in the Cornell Archives). + +\end{thebibliography} +\end{document} + diff --git a/nachlass/collected_dew_materials/changes.tex b/nachlass/collected_dew_materials/changes.tex new file mode 100644 index 0000000..81bfe11 --- /dev/null +++ b/nachlass/collected_dew_materials/changes.tex @@ -0,0 +1,57 @@ + +Suggested Changes for Dan Willard's Wiki Page + +Thanks for your help with Dan Willard's wiki page, and below +is a list of four minor new updates (one of which I suspect you will +find to be quite interesting and surprisingly intriguing): + +1) Please change the first clause in the ``Contributions'' Section +to read as given below. Thus, the initial words of this passage will be +the exact same as your words. The only change is the new suggested words on the +second line below. This added new short passage starts with phrase of ``as well as'' + +``Although trained as a mathematician and employed as a computer scientist + as well as an expert in the proof-theoretic aspects of Symbolic Logic,...'' + +2) Just before the ``SELECTED PUBLICATIONS'' section, please add the following tiny +new section entitled ``MORE DETAILS about WILLARD'S LOGIC RESEARCH''. (You may +either copy the below passage verbatim or edit it, if you so wish. I suspect you +will find the below passage to be surprisingly interesting and informative): + +Willard's most recent published paper during his logic investigations appeared +during 2021 in Oxford University's Journal of Logic and Computation (publication 8 +whose exact citation you can find in the Item A-1 of my vitae). This article +both extends Willard's prior research, and it also summarizes the implications +of his prior and on-going research. It explains more clearly than before the +motivation for Willard's unorthodox exploration +of boundary-case exceptions to G\"{o}del's Second Incompleteness Theorem. +It thereby contains a pointer to an 80-minute year-2007 You-Tube lecture, +delivered by Prof. Gerald Sacks (who had visited Kurt G\"{o}del for two extended +periods at the Institute for Advanced Studies and also did hold two simultaneous +joint appointments with Harvard and MIT). Sacks explains that +the reticent Kurt G\"{o}del had expressed startling +private opinions ``that were almost the opposite of what everyone +else would have expected''. Sacks thus indicated that G\"{o}del believed some type +of expanded Gentzen-like exception to G\"{o}del's G-2 result would eventually +accompany G\"{o}del's G-2 formalism. In essence, Willard's logic research, which +started in 1993, was based on intuitions that were approximately similar +to the comments that Gerald Sacks had much later attributed to Kurt G\"{o}del during +Sacks's year-2007 You-Tube lecture. More details about this 80-minute You-Tube lecture +and its exact relationship to Willard' research can be found in Willard's recent +year-2021 JLC article. + +3. Please replace my old vitae with the attached updated year-2021 version +of this vitae. + +4. Please insert an eighth article into my list of selected publications on the +wiki page. It correspond to Item A-1 in my vitae's publication list. + +Again, I thank you very warmly for setting up my wiki page, and I have +carefully described these changes so that you can easily undertake them. +It is obviously significant that a Harvard-MIT professor, who was a close +friend of Kurt G\"{o}del, recorded a year-2007 You-Tube lecture, that was consistent +with a theory that I started advocating in 1993. To save you work, my Item 2 +has outlined a new paragraph that you can add to my wiki-page. Thus, you can either +employ Item 2 verbatim or revise it, if you so wish. You can telephone me at +518-475-1622 or email me at dan.willard.albany@gmail.com ---- Very Best Regards, Dan + diff --git a/nachlass/collected_dew_materials/dwillard-lfcs.tex b/nachlass/collected_dew_materials/dwillard-lfcs.tex new file mode 100644 index 0000000..82a72ab --- /dev/null +++ b/nachlass/collected_dew_materials/dwillard-lfcs.tex @@ -0,0 +1,3520 @@ +%% 9sept 2.1 pm Final Copy Ready Submit AFTER SPELL DONE +%%% AND dwillard-lfcs will NOW be READY +%% Artemov "recently" added to page 1 + +\documentclass[12pt]{article} +%\documentclass[10pt]{article} +% \documentclass[11pt]{article} +%\documentclass[12pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + +\addtolength{\oddsidemargin}{-0.8in} +\setlength{\textheight}{9.2 in} +%\setlength{\textwidth}{6.0 in} + \setlength{\textwidth}{6.7 in} +%%%% above paper + +%\setlength{\textwidth}{6,0 in} +%\setlength{\textwidth}{5,5 in} + +\addtolength{\topmargin}{-0.75in} + + +%% +%% \addtolength{\oddsidemargin}{-0.5 in} +%% \setlength{\textheight}{10.1 in} +%% \setlength{\textwidth}{7.5 in} +%% \addtolength{\topmargin}{-0.5in} + + + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem} +%%% \newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} +\newtheorem{ccr}[theorem]{$~~~~$Corrolary} +\newtheorem{coj}[theorem]{$~~~~$Conjecture} +\newtheorem{comm}[theorem]{$~~~~$Comment} + + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\aaa{\beta} +\def\ccc{Class} + + +\def\ulxyz{\lceil} +\def\urxyz{\rceil} + +\def\ulxyz{\ulcorner} +\def\urxyz{\urcorner} + + +\def\nop{ } +\def\nyp{\newpage } +% \def\nxp{ } +\def\nxp{ Here $~$NXP } + + +% \def\nyp{ } +% \def\nyp{ } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{SFact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + + + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\cjx}[1]{Conjecture \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + + +\title{On a 3-Part ``Tripod'' Styled Reply + to Hilbert's Mysterious Second Problem} + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard } +%\thanks{This research +%was partially supported +%by the NSF Grant CCR 0956495.}} + +%Email = dew@cs.albany.edu.}} +%\newline +%Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + + +\baselineskip = 1.14 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + + + + + + + +\begin{abstract} +\baselineskip = 4.2 \normalbaselineskip +\Large +Hilbert's mysterious year-1900 Second Problem asked +mathematicians to devise a methodology whereby +Peano Arithmetic can confirm its own consistency. +G\"{o}del's famous 1931 paper showed that a fully +positive reply can never be made to Hilbert's question. +This article will explain how Hilbert's question is +such a complicated issue that it can be better receive +a 3-way styled ``Tripod'' reply. + +\bigskip + +We also provide substantial evidence that G\"{o}del would likely +agree with the main opinions expressed in this article. + +\end{abstract} + +\bigskip + +\bigskip + +\bigskip + +\bigskip + + + \normalsize + {\bf Keywords and Phrases:} + G\"{o}del's Second Incompleteness Theorem, Hilbert's Second + Problem, Consistency, Smullyan-Fitting Semantic Tableau Deduction, + Hilbert-Frege Deduction. + + +\bigskip + +\bigskip + +%% +%% {\bf Mathematics Subject Classification:} +%% 03B52; 03F25; 03F45; 03H13 +%% +%% \bigskip + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + +\def\ttt2c{ } +\def\tttc{ } + +\def\tttc{\tiny \baselineskip = 0.8 \normalbaselineskip \parskip 0pt } +\def\ttt2c{\tiny \baselineskip = 0.7 \normalbaselineskip \parskip 0pt } +\def\tttc{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } + +\def\tttc{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } + + +\def\tttc{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } + + +\def\tttc{ \baselineskip = 1.14 \normalbaselineskip \parskip 3pt } +\def\ttt2c{ \baselineskip = 1.10 \normalbaselineskip \parskip 2pt } +\def\ttt2c{ \baselineskip = 0.98 \normalbaselineskip \parskip 0pt } + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +% \newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + + +\noindent + +% +% +% NNEW COMMENT +% +% +% The pdf version of this draft is verbatim identical to August's Version 3. +% The prior draft's abstract was incorrectly broadcast by Arxiv on the +% Internet, after I pressed a wrong computer button. Thus, +% Version 4 was issued. + + +\newpage + +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ } + + +\gvs + +\footnotesize + + +\def\gvs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +%%%old + + \def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + + \def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +%% march 31 + +\def\gvs{ \Large \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \LARGE \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \large \baselineskip = 2.2 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 2.2 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 5pt} + +% \def\sgvs{ \small \baselineskip = 1.33 \normalbaselineskip \parskip 1pt} +\def\tttc{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + + +\def\gvs{ } + + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + \def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 9pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 9pt} + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + +\def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 5pt} + + +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 8pt} +\def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 8pt} + + +%fffff + + +\def\gvx{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 3pt} + +%fffff +\def\gvs{ \Large \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \LARGE \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + \def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + \def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.5 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.7 \normalbaselineskip \parskip 5pt} + + +% \def\gvs{ \normalsize \baselineskip = 1.07 \normalbaselineskip \parskip = 5pt} + +%\def\gvs{ \large \baselineskip = 2.4 \normalbaselineskip} +%\def\gvs{ \normalsize \baselineskip = 3.1 \normalbaselineskip} + +%\def\gvs{ \normalsize \baselineskip = 3.4 \normalbaselineskip} + +%\def\gvs{ \normalsize \baselineskip = 1.07 \normalbaselineskip \parskip 5pt} + + +%\def\gvs{ \normalsize \baselineskip = 2.07 \normalbaselineskip} + +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip} + +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip} + +\def\gvs{ \Large \baselineskip = 1.8 \normalbaselineskip} + +\def\gvs{ \normalsize \baselineskip = 2.2 \normalbaselineskip} +\def\gvs{ \normalsize \baselineskip = 2.7 \normalbaselineskip} +%\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip} + +\def\gvs{ \normalsize \baselineskip = 2.9 \normalbaselineskip} +\def\gvs{ \normalsize \baselineskip = 3.0 \normalbaselineskip} + +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip} +\def\gvs{ \normalsize \baselineskip = 1.7 \normalbaselineskip} + +\def\gvs{ \normalsize \baselineskip = 1.07 \normalbaselineskip} +\def\gvs{ \normalsize \baselineskip = 1.02 \normalbaselineskip} +\def\gvs{ \normalsize \baselineskip = 1.0 \normalbaselineskip} +\def\gvs{ \normalsize \baselineskip = 1.01 \normalbaselineskip} + +\def\nvs{ \Large \baselineskip = 2.5 \normalbaselineskip} + +\def\nvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip} + +% + +% \def\nvs{ \large \baselineskip = 1.8 \normalbaselineskip} + +%%%\def\nvs{ \normalsize \baselineskip = 1.10 \normalbaselineskip} + +\def\nvs{ \normalsize \baselineskip = 1.08 \normalbaselineskip} + +% \def\nvs{ \normalsize \baselineskip = 2.2 \normalbaselineskip} +\def\nvs{ \normalsize \baselineskip = 0.96 \normalbaselineskip} + + % fffffffff + + + +\label{ss11} +\gvs +\parskip 3pt +\tttc + +\def\dvs{ \normalsize \baselineskip = 2.5 \normalbaselineskip} +\def\dvs{ \normalsize \baselineskip = 3.0 \normalbaselineskip} + \def\dvs{ } +\newpage + +\section{Introduction} +% 11111111111111111 } + +\label{aaa1} +\nvs +\baselineskip = 1.02 \normalbaselineskip +\parskip 4pt +\tttc +\dvs + +This article is a continuation of a series of papers +that began +with the 1993 article \cite{ww93} +and continued until and through the year-2021 article \cite{ww21}. +This series, +which included six papers appearing in the JSL and APAL, +had focused on discussing +generalizations and boundary case exceptions for the +Second Incompleteness Theorem. +The two goals of this paper will be to explore the underlying +philosophy that motivated this series and to explain how +it is related to several generalizations and +boundary-case exceptions to the +Second Incompleteness Theorem , including some important new +results formalized by Artemov \cite{Ar19,Ar21}. + + +Our general theme will be that Hilbert's year-1900 Second Problem + is too complex an issue to receive a 1-directional or + even 2-directional + answer. Instead, it will require a + 3-directional answer, called the ``Tripod Reply'' to + Hilbert's question. + + + + The first leg of this 3-part response to + Hilbert's Second Problem +will rest on the combination + of G\"{o}del's initial version of his Second Incompleteness + Theorem and its numerous generalizations. + % cite????. + They +collectively +establish that +many logical formalisms, besides Peano Arithmetic (PA), +are unable to corroborate their own consistency +in a fully extensive respect. +While these generalizations of G\"{o}del's Second +Incompleteness paradigm are indisputably important, +the second section of this article will explain +%% how +Hilbert and G\"{o}del +strongly doubted they constituted a full answer to + Hilbert's year-1900 problem. + +%%% citations in above paragraph MAYBE NOT? PROBABLY NOT NOT NOT NOT + + A second leg of a 3-part reply to Hilbert's Second +Problem + was formalized by + Artemov + recently + in \cite{Ar19,Ar21}. + He noted Peano Arithmetic (PA) can prove + an infinite +% -sized + schema of + theorems, whose collective + union + confirms PA's own consistency. +Let us call Artemov's method a +Step-By-Step Infinite-Schema approach + {\bf ($~$SBSIS$~$)}. +This technique is an extension of the + Justification Logics explored by Artemov and Beklemishev + \cite{Ar1,AB5,Be5}. It was motivated by +Artemov's + observation + that +the year-1900 logic community (including Hilbert) +were not aware that PA would require an + infinite number of proper axioms. +$~$Thus, an SBSIS schema-driven logic approach +is a valid reply to Hilbert's year-1900 second problem, +although its potential significance +was not +well appreciated during the +era when Hilbert posed his Second Problem. + +Artemov's analysis +\cite{Ar19,Ar21} +uses Tarski's partial definitions +of truth for sentences with a bounded number of quantifiers +as an intermediate step. It essentially +constructs a sequence of finite subsets of +Peano Arithmetic $~S_1~\subset ~S_2~\subset ~S_3~\subset~ ...~$ +where +\bee +\item +$~~~$PA$~=~~S_1~\cup ~S_2~\cup ~S_3~\cup~ ...~$ +\item +\label{step2} + Each $~S_{j+1}~$ can prove +a $\Pi_1$ theorem asserting + there exists no proof from + $~S_j~$ + of 0=1, in a context where all logical axioms + in the concerned proof from $~S_j~$ +are no + more complex than $\Pi_j$ + or $\Sigma_j$ statements. (We will henceforth + call this theorem $T_{j+1}$. ) + \ene +While +Artemov's SBSIS-style response to Hilbert's +year-1900 second question +is intriguing, +one would ideally still like access to +a system that does not rely upon his infinite series +$S_1 \, S_2 \, S_3 ...~$. + +\nvs + +\dvs + + +\parskip 9 pt + +A third possible leg of a proposed Tripod +reply to Hilbert's second problem +involves formal systems using Fixed Point axiomatic +sentences that confirm their own consistency. +For example, +% the articles +\cite{ww93,ww1,ww5,wwapal,ww21} +examined systems +strictly weaker than PA, +that + verified their own self-consistency, +under mostly semantic tableau deduction +\cite{Fi96,Sm95}. + + + +This third leg, +called the {\bf Declarative Approach}, +rests on using a self-referencing +{\it ``I am consistent''} axiomatic declaration, +so that a formalism can confirm its own consistency. +This approach, studied in +\cite{ww93,ww1,ww5,wwapal,ww21}, +will essentially be defined by +the current paper's statement $~\oplus~$. +Its advantage is +that its declaration of self-consistency is compressed into +one single sentence, +while its {\bf non-trivial drawback} is that its particular statement $~\oplus~$ +(defined in \textsection\ref{aaa3}) +can be successfully used only when the +surrounding formalism is sufficiently weak. + +In other words, each of the three legs of a unified ``Tripod'' +response to Hilbert's Second Problem +% do +own drawbacks, as well as significant +virtues. A +multi-facet +Tripod reply is attractive +because it +straddles nicely between +%these +all three +legs, simultaneously. + + +\section{The Main Weakness of the First Leg} + +%%%% 2222222222222 + +\label{aaa2} + +It is known Hilbert always suspected the +Second Incompleteness Theorem, while correct, would +ultimately display established exceptions. +For instance, Hilbert \cite{Hil26} wrote: +\begin{quote} +\small +\baselineskip = 1.0 \normalbaselineskip +\ttt2c +$*~$ +{\it `` +Let us admit that the situation in which we presently +find ourselves with respect to paradoxes is in the long +run intolerable. Just think: in mathematics, this paragon of +reliability and truth, the very notions and inferences, +as everyone learns, teaches, and uses them, lead to absurdities. +And +where +else +would +reliability and truth be found +if even mathematical thinking fails?''} +\end{quote} +Also, it is known +G\"{o}del's seminal 1931 paper appeared to +agree with +the goals of Hilbert's +Consistency Program +in one of its closing paragraphs: +\begin{quote} +\small +\ttt2c +$~**~~$ +{\it ``It must be expressly noted that +Theorem XI''} +(i.e. the Second Incompleteness Theorem) +{\it ``represents no contradiction of the formalistic +standpoint of Hilbert. For this standpoint +presupposes only the existence of a consistency +proof by finite means, and {\it there might +conceivably be finite proofs} which cannot +be stated in P or in ... ''} +\end{quote} +Several +biographies +of + G\"{o}del +\cite{Da97,Go5,Yo5} +have observed + G\"{o}del's + intention (prior to 1930) +was to +establish +Hilbert's proposed objectives, before +he developed +his famous +nearly +opposing theorem. +Indeed, + Yourgrau's +biography + \cite{Yo5} + of G\"{o}del +had traversed beyond this point. +It +recorded + how +von Neumann +found it necessary during the early 1930's to +{\it ``argue +against G\"{o}del +himself''} + about the definitive + termination of Hilbert's +consistency program, +which +{\it ``for several years''} after \cite{Go31}'s publication, +G\"{o}del +{\it ``was cautious not to prejudge''}. + +In a context where +G\"{o}del +published fewer than 85 pages during his +career, +historians +will +probably +never +% be able to +fully characterize +the nature of +G\"{o}del's +finished philosophical position about his Second Incompleteness +Theorem. From informal notes taken during a 1933 + Vienna + lecture \cite{Go33}, it is known + % that + G\"{o}del was more positive about its +% long-range + implications +in 1933 than he was in 1931. + +On the other hand, Gerald Sacks recorded +a +% quite +stunning +80-minute YouTube recollection +about his interactions with +G\"{o}del in the year 2007. +These recordings +explicitly +state that +G\"{o}del +held {\it ``contrarious''} opinions about some of +his +most +famous results. +Also Sacks explicitly recalled (see footnote +\footnote{These two quotations +can be found in + the 7-th and and 9-th minutes of the YouTube recording + \cite{YouSa14} + that Gerald Sacks had made about Kurt + G\"{o}del. + } ) +G\"{o}del + communicating +private +opinions +% to Sacks +that were +{\it ``almost the opposite of what every one +else would have expected''.} + +These remarks by Sacks deserve to be taken +seriously, +given that Sacks +interacted twice +with G\"{o}del +at the Institute of Advanced Studies +(once in 1959-1960 and a second time +during the 1970s). Moreover, Sacks went beyond the preceding quoted +remarks. +Other +memorable comments from + \cite{YouSa14}'s + YouTube lecture +are that: +\bed +\item{ a) } + G\"{o}del + {\it ``did not think''} +the objectives of Hilbert's Consistency Program +{\it ``were erased''} +by +the Incompleteness Theorem, +\item{ b) } +G\"{o}del believed (according to Sacks) + it left + Hilbert's program +{\it ``very much alive and +even more interesting than it initially was''}. +\ennd +Also, Nerode \cite{Ne20} +indicated in private communications that +Stanley Tennenbaum +shared similar conversations +with G\"{o}del, as those remembered by +Sacks. +These +conversations +%%% with Tennenbaum also, apparently, +%% expressed +likewise noted +the +need for some type of revival of +Hilbert's +Consistency Program. + +Thus, + the last two paragraphs, +have +summarized the quandary +that Symbolic +Logic has faced since 1931. +They suggest some type of + Tripod-like response +to Hilbert's Second Problem +may become necessary to formulate +a more comprehensive +response to Hilbert's question. + +\section{Starting Notation with the WCB \& USEGR Paradigms} + +%% 3333333 + \label{aaa3} + + We will summarize the contents of the prior articles + \cite{wwapal,ww21} so it will be + unnecessary to read these papers. +The particular annotated paragraphs in +\cite{ww21} had used +decimal reference numbers + such as ``Example 3.1'' or ``Definition 3.2''. A non-decimal paragraph + notation will be used in the current paper, +thus having its + first annotated paragraph instead +called ``Definition 1''. This type of +adjusted notation +should + cross-reference the prior paper \cite{ww21} +in a manner that avoids +any ambiguity and/or + confusion. + + +\begin{deff} + \label{defx1} +\rm +An +ordered pair $(\alpha,D)$ is called a +{\it Generalized Arithmetic Configuration} +(abbreviated as a {\bf ``GenAC'' }) +when its +first and second +components +are +defined +as +follows: +\bee +\item +The {\bf Axiom Basis} ``$~\alpha~$'' +for a + GenAC +is defined as +its set of + proper axioms. +\item +The second component + ``$\, D \,$'' + of a + GenAC, called its + {\bf Deductive Apparatus}, +is +defined as +the union of its + logical axioms ``$\,L_D$'' with its + rules for obtaining inferences. +\ene +\end{deff} + +The Example 3.1 from \cite{ww21} provided several examples of +GenAC formalisms. Its Definition 3.2 defined a GenAC $(\alpha,D)$ +to be {\bf ``Self-Justifying''} when: +\begin{description} + \item[ i. ] one of $~( \alpha , D )$'s theorems +(or possibly one of $\alpha$'s axioms) +states that the deduction method $ \, D, \, $ applied to the +basis +system $ \, \alpha, \, $ +produces a consistent set of theorems, and +\item[ ii. ] + the GenAC formalism $ \,( \alpha,D) \, $ is +actually, in fact, + consistent. +\end{description} + +\begin{exx} + \label{ex3} +\rm +For any $\,(\alpha,D) \,$, +it is +easy +to construct a +system $ \, \alpha^D \, \supseteq \, \alpha \, $ + that satisfies +the +Part-i +condition +in an isolated context where the Part-ii condition is + not also +satisfied. +Thus, + $ \, \alpha^D \, $ can +consist of all of $~\alpha \,$'s axioms plus +the added {\bf $\,$``SelfRef$(\alpha,D)$''$\,$} sentence, +defined below: +\begin{quote} +$\oplus~~~$ +There is no proof +(using +$D$'s deduction method) +of $0=1$ +from the {\it union} + of +the + axiom system $\, \alpha \, $ +with {\it this} +sentence ``SelfRef$(\alpha,D) \,$'' (looking at itself). +\end{quote} +Each of +Kleene and Rogers +\cite{Kl38,Ro67} +noticed +how +to +encode + analogs of +SelfRef$(\alpha,D) \,$'s above statement, +which we will often + call an + {\bf $\,$``I AM CONSISTENT'' + axiom.} + The catch is +%%%  that +$\alpha ^D$ +may +be inconsistent +(e.g. +violate + Part-ii of self-justification's +definition + despite +the assertion in + SelfRef$(\alpha,D)$'s +particular +statement). +This is because if the + pair $(\alpha,D)$ is too strong +then a +quite conventional +G\"{o}del-style diagonalization argument can +be applied to the axiom basis of +$~\alpha^D~=~ \alpha \, + \, $ SelfRef$(\alpha,D), ~$ +where the added presence of the statement +SelfRef$(\alpha,D)$ +will cause this extended version of +$\, \alpha\,$, ironically, + to + become automatically inconsistent. + Thus, while an + encoding for statement $~\oplus \,$'s {\it ``I am consistent''} declaration + is a routine consequence of the Fixed Point Theorem, +its computational implementation is + potentially +devastating. + +% consequences. + +\end{exx} + +\begin{definition} +\label{defy3} +\rm +Let + $Add(x,y,z)$ and $Mult(x,y,z)$ +denote two 3-way predicates specifying + $x+y=z$ and $x*y=z$. +Let us say + a formalized +system of +$~\alpha~$ +recognizes successor, addition and multiplication +as {\bf Total Functions} iff +it can prove all of +\eq{totdefxs} - \eq{totdefxm} +as theorems: +\end{definition} +{ \small +\baselineskip = .9 \normalbaselineskip +\beq +\label{totdefxs} +\forall x ~ \exists z ~~~Add(x,1,z)~~ +\enq +\beq +\label{totdefxa} +\forall x ~\forall y~ \exists z ~~~Add(x,y,z)~~ +\enq +\beq +\label{totdefxm} +\forall x ~\forall y ~\exists z ~~~Mult(x,y,z)~ +\enq } +\noindent +Also a GenAC system $(\alpha,D)$ will be called +{\bf Type-M} +formalism +iff it proves +\eq{totdefxs} - \eq{totdefxm} +as theorems, {\bf Type-A} if it proves +only \eq{totdefxs} and \eq{totdefxa}, +and +it will be called + {\bf Type-S} if it proves +only \eq{totdefxs} as a + theorem. +Furthermore, + $(\alpha,D)$ + will be +called +{\bf Type-NS} iff it proves +none of \eq{totdefxs} - \eq{totdefxm}. + + + + +%% bbbbbbbbbbbbbbb DONE AND DELETE + +\bigskip +{\bf BROADER OUTLOOK:$~$} +The remainder of this chapter will step backwards +roughly 1,500 years in time, and explore the relationship +between Definitions 1 and \ref{defy3} with +India's famous +``Wheat-and-Chess-Board'' paradigm (often denoted +as the +{\bf ``WCB''} phenomenon.) + +This paradigm will + help clarify the persistent confusion that has + surrounded G\"{o}del's + Second Incompleteness + Theorem. It will also help us +formulate a new interpretation for the + Remarks $*$ and $**$ that +Hilbert and G\"{o}del had made. + + + According to Wikipedia, + scholars are + %actually + uncertain about exactly when the WCB fable had + emerged in ancient India. (It may possibly + have originated as early as 400-600 AD.) + + % but scholars have debated the accuracy of such a date.) + + + + Under one variant of the WCB fable, a Brahmin named + Sissa ibn Dahir invented +a type of + Indian predecessor +to the game of Chess. At some +subsequent + juncture, the king + of Sissa's province + offered to award him +a prize +for the game +that + Sissa had invented. Sissa + replied that it would be sufficient to place one + grain of wheat on the first square of a Chess Board, + two grains + on its second square, four grains on its third square, etc. + + There are several versions of the Sissa fable, and no one knows + which (if any ?) is accurate. One variant involves + the king executing Sissa after discovering the last +chess-board + square would + require $~2^{63}~$ grains of wheat. Another + variant concludes with +the + king smiling upon realizing the nature +of Sissa's + puzzle and declaring that this +puzzle +is more fascinating +and stimulating +than the game of chess (itself). + + While many precise details have been lost over time, + the underlying +message of the WCB + fable has survived for roughly + 1,500 years. +This is because it is thought +to + convey an instructive lesson about +the unsustainable +nature of an + exponential growth. + + For instance, + the 64 squares +of a Chess Board +has been found to +require an amount of wheat that is + a factor of 1,000 greater than the world's full + % annual + year-2019 production. + Moreover, a direct analog of the WCB paradigm, involving +a few hundred doubling operations, will require more wheat +than there are atoms in the Universe. + +Our point is that this fable would not have survived the +millennial test of time if there were not many examples in human +history where individuals +have +accidentally got involved in +exponential growth processes that started at a gradual rate +but then ran wild. One of these examples seems to concern +Hilbert's statement $~*~$ (i.e. see Section \ref{aaa2} ). +It appears to ask mathematicians to perform +an +analog of Sissa's +unsustainable WCB task. + +This is +because if one seeks to perform +several hundred squarings of the number 2 than its +binary encoding will own more zero-digits than there are +atoms in the universe. This can be appreciated by comparing +the sequences +$ x_0,~ x_1,~ x_2,~ ... $ +and $ y_0, ~ y_1, ~ y_2, ... $ + defined below: +\vspace*{- 0.7 em} +\beq +\label{zs} +x_0~~~=~~~2~~~=~~~y_0 +\enq +\beq +x_{i}~~~=~~~x_{i-1}~+~x_{i-1} +\label{as} +\enq +\beq +y_{i}~~~=~~~y_{i-1}~*~y_{i-1} +\label{bs} +\enq +For $\, i \, > \,0 \,$, +$\,$let $ \, \phi_{i} \, $ +and $ \, \psi_{i} \, $ +denote the +sentences in +\eq{as} and \eq{bs} +respectively. +Then if + $ \, \phi_{0} \, $ and +$ \, \psi_{0} \, $ +denote \eq{zs}'s +sentence, it is apparent that + $ \, \phi_0, \, \phi_1, \, ... \, \phi_n \, $ +imply + $ \, x_n \, = \, 2^{ n+1} \, , \, $ while + $ \, \psi_0, \, \psi_1, \, ... \, \psi_n \, $ + imply $ \, y_n \, = \, 2^{2^n} \, $. +Thus, the latter sequence +will grow +at an +exponentially +faster +rate than +the former. +(E.g. the respective quantities of +Log$_{ \, 2 \,}(\, y_n \,) \, = \, 2^{n} \, $ +and +Log$_{ \, 2 \,}(\, x_n \,) \, = \, {n+1} \, $ + represent +the lengths for the binary codings +for +$ \, y_n \, $ + and +$ \, x_n \, $.) + +In other words, + $ \, y_n\,$'s + binary +encoding +will have a length +$\, 2^{n} \, $, +roughly analogous to the n-th square belonging to +the WCB's chess board paradigm. +Leaving aside technical details that were largely +explored in \cite{ww21} and shall be briefly +reviewed later, we are suggesting that +Hilbert's statement $*$ is partially analogous to + Sissa's WCB paradigm. + +The latter is not meant to deny that there are some intriguing +interpretations of the Hilbert and G\"{o}del statements $*$ and $**$ +deserving, certainly, partial sympathy. +This is because there are other types of +amended axiomatizations of arithmetic that avoid +\el{bs}'s malignant assumption that multiplication is +a total function. + +The theme of this article is, thus, largely that one needs to be +more flexible when approaching the + Hilbert and G\"{o}del statements $*$ and $**$. +Our proposed ``Tripod Reply'' to + Hilbert's Second Problem + will thus be + a gentle hybrid-styled reply, that +accepts $*$ and $**$ half-way and + views Hilbert's Second Problem +from all three Tripod perspectives +summarized in Section \ref{aaa1}. + + + +\begin{deff} + \label{defx4} + \rm +During the remainder of this article, the acronym +{\bf ``USEGR''} will refer to an {\it Unsustainable Exponential Growth Rate}, +similar +to the dizzying number of zero digits +that was produced by \el{bs}'s sequence of + $ y_0, ~ y_1, ~ y_2, ~ ... ~ $. +We will argue that such sequences resemble +Sissa's WCB paradigm, +and a mathematical realist should avoid them as much as +feasible. +\end{deff} + + + + +Our theme will be that a +1-way response to Hilbert's Second Open Problem +was observed by Sacks to be +questionable +when his remarks +(a) and (b) +(from Section \ref{aaa2}) +noted G\"{o}del viewed the + Second Incompleteness Theorem +as essentially +a too +pessimistic reply + to Hilbert's second problem. +Also, + a broader + 2-way response is inadequate because the various +self-justifying formalisms that Willard developed +between the times of \cite{ww93}'s initial 1993 +%%% announcement +presentation +and that of \cite{ww21}'s +recent LFCS-2020 paper +are weaker +than would be preferred. + +Artemov's third type of response +uses +his elegant +infinite ranged SBSIS-styled +exceptions \cite{Ar19,Ar21} +to the Second Incompleteness Theorem. It is +almost +%% very close to +ideal. +Yet, it also has drawbacks +(see footnote\footnote{Section + \ref{aaa1} explained how + \cite{Ar19,Ar21} also had +some + hidden difficulties. They are + that Peano Arithmetic (PA) + can verify only the consistency of finite subsets + of itself. Thus, +\cite{Ar19,Ar21}'s + perspective + is + useful, but it does not +fully + explain how PA + can formalize the consistency of its + infinitely drawn + expanse. + In this context, we shall argue + a hybridized + Tripod-style response is a +more + comprehensive +reply to + Hilbert's Second Problem.} ) +because its SBSIS approach +is a mixture of tempting positive results and compromises. +This +is the reason the current article advocates using +several perspectives simultaneously, +under +our hybrid-styled 3-part +``Tripod'' +reply to Hilbert's +120 year-old problem. + +\section{Characterizations of Several Base Languages} + + %%% 4444444444444444 + + \label{aaa4} +% \label{sect4} + + Sissa's 1,500-year old ``WCB'' paradigm, +as well as + Definition \ref{defx4}'s + ``USEGR'' effect +have similar themes. +This is because both involve +unsustainable exponential growth processes, +having often +unwelcome and +unanticipated effects. +In particular, their circumstances can be made applicable +to essentially all the +known variants of the Second Incompleteness Theorem +\cite{AZ1,Ar1,Be14,BS76,Bu86,BI95,Fe60,Fr79a,Ha11,HP91,KT74,Pa71,PD83,Pa72,Pu85,Pu96,So88,So94,Sv7,Vi5,WP87,ww1,ww2,ww7,wwapal,ww16}. +% cite?????????. +One +of its +most +interesting variants +arose during a 1994 +private telephone conversation +with Robert Solovay +\cite{So94}. +% that he chose never to publish. +Its formalism (due to Solovay) +can be thought of as a generalization + of a methodology that was initially developed by Pudl\'{a}k in + \cite{Pu85} and which was further explored +by Nelson and Wilkie-Paris in \cite{Ne86,WP87}. +%%% Essentially, it is +It essentially amounts to +the following observation: +\begin{description} +\item{\bf Theorem ++ $~$ : } +{\it +$~~~$ +(Solovay's +modification +\cite{So94} +of Pudl\'{a}k \cite{Pu85}'s formalism +using some of +Nelson and Wilkie-Paris \cite{Ne86,WP87}'s +methods)} : +Let +$ \, (\alpha,D) \, $ +denote +a +Type-S +GenAC system +which assures +the successor operation +will +% provably +satisfy +both + $ \, x' \neq 0 $ and +$ x' = y' \Leftrightarrow x=y $. +$~$Then +$ \, (\alpha,D ) \, $ +cannot verify its own +consistency +whenever +simultaneously + $D$ is some type of +a Hilbert-Frege +deductive +apparatus and +$~\alpha~$ + treats addition and multiplication +as 3-way relations, +satisfying +their usual % identity, +associative, commutative, + distributive +and identity +axioms. +\end{description} +%\end{quote} +\medskip +Essentially, Solovay \cite{So94} +had +privately communicated to Willard +an approximate analog of Theorem $++$. +(This communication was similar to +several +other often-privately-communicated comments +that the +% \newpage +% \noindent +literature \cite{BI95,HP91,Ne86,PD83,Pu85,WP87} +has often attributed to +Robert Solovay's unpublished observations.) +It also should be mentioned that +partial +analogs of + $++$'s statement + were explored +subsequently + by Buss-Ignjatovi\'{c}, +H\'{a}jek +and +\v{S}vejdar in \cite{BI95,Ha11,Sv7}, +as well as in Appendix A of +the paper +\cite{ww1} +and in \cite{wwapal}. + +Furthermore, we stress that +Pudl\'{a}k's initial 1985 article \cite{Pu85} +had captured +the majority +of $++$'s +implications, chronologically before Solovay's observations. +Also, +Friedman did nicely + related +work as early as 1979 + in +\cite{Fr79a}. + +\bigskip + +In order to explain how +Sissa's 1,500-year old ``WCB'' paradigm +and Definition \ref{defx4}'s similar ``USEGR'' effect +are related to this material, it will be useful to +employ +Definition \ref{defx5}'s notation. (Its predecessor +can be found +in \cite{wwapal}, but the latter did not discuss the + ``USEGR'' effect.) + +\begin{deff} +\label{defx5} +\rm +A function $ F(a_1, \ldots , \, a_j)$ +is called +a {\bf Non-Growth} operation +when +$ F(a_1, \ldots , \, a_j) +\leq Maximum(a_1 , \ldots , \, a_j)$ +holds. +Seven examples of +non-growth functions are: +\bee + \parskip 0pt +\small + \baselineskip = 0.70 \normalbaselineskip +\item +{\it Integer Subtraction} +(where $~x-y~$ is defined to equal zero when + $~x \leq y~),~~$ +\item +{\it Integer +Division} +(where $x \div y$ +equals +$~x~$ when $y=0$, and +it equals $~\lfloor ~x/y ~\rfloor~$ otherwise), +\item +$~Maximum(x,y),$ +\item +$~ Log_{ \, \spadesuit \, }(x)~$ + which +is an abbreviation for +$~\lceil~$Log$_2(~x+1~)~\rceil~~$ under +the conventional +notation. +%%% +%%% +%%% (The footnote +%%% \footnote{ +%%% The H\'{a}jek-Pudl\'{a}k textbook \cite{HP91} uses the +%%% notation ``$~\mid x \mid~$'' +%%% to +%%% designate +%%% what we shall call ``$~ Log_{ \, \spadesuit \, }(x)~$'' +%%% Thus for $~x \geq 1 \,$, +%%% $~ Log_{ \, \spadesuit \, }(x)~$ +%%% denotes +%%% the number of symbols that will +%%% encode the number $~x\,$, when it is written +%%% in a binary format. } +%%% explains the +%%% significance +%%% of this +%%% concept.) +%%% +%%% +\item +$\,~Root(x,y) \, = \, \lceil \, x^{1/y} \, \rceil$ +\item $~Count(x,j)$ designating the number of +physical + ``1'' bits +stored among $ \, x$'s rightmost $ \, j \, $ bits. +\item + $~Bit(x,i)~$ + designating the $i-$th rightmost bit + of the string $x$ (as explained by footnote \footnote{ The +$~Bit(x,i)~$ operator is technically unnecessary +because it can be encoded as: +$\mbox{Bit}(x,i)~~=~~ \mbox{Count}(x,i) ~-~ \mbox{Count}(x,i-1)$.} + $~$.) +\ene +These function were called +{\bf Grounding Functions} in \cite{wwapal}. +Also, $L^0 \,$ will denote a quite weak +language +built from the Grounding functions, together with +three constant symbols $c_0$, $c_1$ and $c_2$ +(representing 0, 1 and 2) and +the ``$ \, = \, $'' +and ``$ \, \leq \, $'' primitives. +\end{deff} + +Since $L^0$ contains absolutely no growth +functions, it is so weak that it cannot even +formalize the integer 3 as an isolated term. +Thus, +\cite{wwapal} found it necessary +to strengthen $L^0$'s language +with the two additional Type-NS 3-way predicates +$Add(x,y,z)$ and $Mult(x,y,z)$ (that formalize the concepts +of ``$~x+y=z~$'' and ``$~x*y=z~$''). Their two formal +definitions are given below: +\beq +\small + \label{newadd} +z ~ - ~ x ~~ =~~y ~~~~\wedge~~~~ z~~ \geq~~ x +\enq +\begin{equation} +\small + \label{newmult} + \{ ~(x=0 \vee y=0 ) \Rightarrow z=0~ \} ~ ~\wedge ~~ + \{ ~(x \neq 0 \wedge y \neq 0~) ~ \Rightarrow ~ +(~ \frac{z}{x}=y ~\wedge \, ~ \frac{z-1}{x} \,$Val$(t) \, = \, 2^k$ is valid in this case +because the preceding product has +$ \, k \, $ appearances of the constant 2 connected by $ \, k-1 \, $ appearances +of the multiplication symbol. +Moreover, it is easily proven that terms, which are not powers +of 2, are never represented in a more compressed form than the +greatest power of 2 that they exceed. Thus Lemma \ref{lem1} +is valid for all terms where + $ \, $Val$(t) \, \geq \, 4$. $ \, \, \Box$ + + +\medskip + + +{\bf Definition 3.} $~$ +For a fixed constant $~B>0,~$ +a set $~S~$ of functions is defined to be a +{\bf $B-$Bounded Arithmetic Set} iff $~S~$ +includes the arithmetic functions of addition, multiplication and successor +and all its other functions $~G~$ +satisfy the constraint that +\begin{equation} +\label{bcs} +G( x_1 , x_2, ~ ... \, , ~ x_n ) ~ + \leq ~\mbox{Max}( x_1 , x_2, ~ ... \, , ~ x_n )~ \, +\mbox{when}~ \, +\mbox{Max}( x_1 , x_2, ~ ... \, , ~ x_n )~<~B~~~ +\end{equation} +Also, we will say a term $~t~$ is a {\bf +B-Bounded Arithmetic Term} +iff $~t~$ is a term that uses only the symbols of 0, 1 and 2 +as its inputted constants and +all its function symbols come from some B-Bounded +Arithmetic Set $~S~$. +Lemma \ref{lem2} provides the generalization of + Lemma \ref{lem1} for B-bounded arithmetic terms. +Its proof is omitted because it +is an easy generalization +(see footnote \footnote{The +intuitive reason that +Lemmas \ref{lem1} and \ref{lem2} have +similar proofs +is that arithmetically controlled terms and + $B-$bounded arithmetic terms +have precisely identical growth +rates until a construction process builds an +intermediate object $~t~$ with +$~$MinG$(t)~\geq~B~$.} ) of +Lemma \ref{lem1}'s +proof. + + +\begin{lemma} +\label{lem2} +Suppose that $~t~$ is a $B-$bounded arithmetic + term with $~$MinG$(t)~<~B~$ +and Val$(t)~ \geq ~4$. Then +$~$Val$(t)~ < ~$MinG$(t)$. +\end{lemma} + + +{\bf Definition 4.} $~$ Let $~\Phi~$ denote the $\Pi_1^R$ sentence below +whose $\Delta_0^R$ subformula is defined by $~\xbar{\phi}(~a_1,a_2~...~a_n~)~~$: +\begin{equation} +\label{bvp} +\forall a_1 \forall a_2 ... + \forall a_n \, \, +\xbar{\phi}( a_1,a_2 ... a_n ). +\end{equation} +For any $~B \,\geq \, 1,~~$ \ep{bvp} is +called +a {\bf $B-$Bounded Valid $\Pi_1^R$ sentence} iff +\eq{bvpc} is valid under the standard model +of the natural numbers +\begin{equation} +\label{bvpc} +\forall ~ a_1 \, < \, B~~\forall ~ a_2 \, < \, B~~... + ~~\forall ~ a_n \, < \, B~~~~ +\xbar{\phi}(~a_1,a_2, ~ \ldots , ~~a_n~). +\end{equation} + +\bigskip + +{\bf Definition 5.} $~$ +An axiom system $~\alpha~$ +will be said to satisfy +the {\bf Canonical Arithmetic Condition} +when all $\alpha$'s axioms are $\Pi_1^R$ sentences +and they include $Q_0$'s nine axioms (i.e. Equations +\eq{pw1}--\eq{pw6} ). + +\bigskip + +{\bf Definition 6.} $~$ +Let $~\Theta~$ +denote a methodology for assigning G\"{o}del numbers +to Herbrand proofs +(which are henceforth denoted as $~P ).~$ +Let us recall that MinG$(t)$ was defined by Item (1) in this +section. +Define $ ~ \Theta ~$ to be a +{\bf Conventional Encoding Method} if +$~\Theta(P)~>~$MinG$(t)~$ +whenever the proof $~P~$ contains the +Herbrand term $~t~$. (Such encodings are called +``conventional'' because all usual methods for encoding Herbrand +proofs satisfy $~\Theta(P)~>~$MinG$(t)~$.) + +\medskip + +\begin{theorem} +\label{tttccc} + Suppose $~\alpha~$ is + a canonical arithmetic + axiom system consisting of + $B-$Bounded Valid $\Pi_1^R$ sentences and + $~\Theta~$ again satisfies Definition 6's Conventional + Encoding property. + Then any Herbrand proof $~P~$ of + $~\bot~$ from the axiom system $~\alpha~$ will satisfy the + inequality that $~\Theta(P)~>~B~$. +\end{theorem} + +\medskip + + + +{\bf General Comments about \thx{tttccc} and its Proof: $~$} +At an intuitive level, \thx{tttccc} can be viewed as a consequence of +the machineries of Lemma \ref{lem2} +and Definitions 3-6. +This is because the B-Bounded validity condition in \thx{tttccc}'s +hypothesis can be used to show that a Herbrand proof $~P~$ of +$~\bot~$ must contain some term $~t~$ where +Val$(t) \geq B \,$. In this context, the combination of +Lemma \ref{lem2} and Definition 6 will +imply that such a term will force $~P \,$'s G\"{o}del number to +exceed the lower bound of $B$. + +A more detailed formal +proof of \thx{tttccc} +appears in Appendix A. It explains the +precise role that Definition 3 and Lemma \ref{lem2} +play in establishing this theorem. +Our recommendation is that +a reader postpone +examining Appendix A +until after +he +finishes + the remainder of this section. It +will explain the significance of +\thx{tttccc} +by showing how it + enables us to prove the surprising result that the +Ax-3 axiomatization for \jjsj is an anti-threshold for the Herbrandized +version of the Second Incompleteness Theorem. + + +\medskip + \bigskip + +\begin{theorem} +\label{tm2} +For any arbitrary axiom system $\alpha$ and +deduction method $D$, let +Diagonal$(\alpha,D)$ +and $~\alpha^D~$ +denote the following two constructs: +\bed +\item[ A. ] +{\rm Diagonal$(\alpha,D)~~$ will denote a logical +sentence that states: $~$ +``There is no proof +(using deduction method $~D~$)$~$ +of the {\it falsity sentence} $~\bot~$ +from the union of +the axiom system $~\alpha~ $ +with $~this~$ +sentence Diagonal$(\alpha,D) \,$ (looking at itself).''} +\item[ B. ] +{\rm $~\alpha^D~$ will denote the formal union of the +axiom system $~\alpha~$ with the sentence +Diagonal$(\alpha,D)$.} +\ennd +Let +Diag(Ax-3) +denote the special variant of +Diagonal$(\alpha,D) $ where $ \, \alpha \, = \, $Ax-3 +and $~D~$ designates Herbrand deduction. +Both these +two + constructs +and also $~\alpha^D~$ +are well defined. Also, +Diag(Ax-3) has a +$\Pi_1^R$ encoding. +\end{theorem} + +\bigskip +\medskip + + + +{\bf Abbreviated Sketch of \thx{tm2}'s proof.} $~$ +As early as 1938, Kleene observed +\cite{Kl38} +that +the Fixed Point Theorem implied that + a type of cousin of the sentence + Diagonal$(\alpha,D)$ +was well defined. More recently, Willard +\cite{ww1,ww5} showed how + Diagonal$(\alpha,D)$ could +be formally endowed with a + $\Pi_1$ encoding under +the conventional language of arithmetic. It is +reasonably +straightforward to +generalize \cite{ww1,ww5}'s result to establish that +Diag(Ax-3) also has +a well defined $\Pi_1^R$ +encoding (thus completing +\thx{tm2}'s proof.) +The remainder of this proof sketch +will summarize the ideas from +\cite{ww1,ww5} for the benefit of those readers +who are unfamiliar with this topic. +Our discussion will employ the following notation: +\begin{description} +\item[ i] $\mbox{Prf}_{\alpha}^D~( \, t \, , \, p \,)$ +will denote a formula designating +that $~p~$ is a proof of the theorem $~t~$ from the axiom +system + $~\alpha~$ + using the deduction method $~D.~$ +\smallskip +\item[ ii] +$\mbox{ExPrf}_{\alpha}^D~( \, h \, , \, t \, , \, p \,)$ +will be a formula stating that +$~p~$ is a proof +(using the deduction method $~D~)~$ + of +a theorem $~t~$ +from the union +of the axiom system + $~\alpha~$ +with the added axiom +sentence whose G\"{o}del number equals +$\, h \,$. +\smallskip +\item[iii] + $\mbox{Subst} \, ( \, g \, , \, h \, )$ will denote +G\"{o}del's +classic substitution formula --- which yields TRUE when $\, g \,$ +is an encoding of a formula +and $\, h \,$ is an encoding of a sentence +that replaces all occurrence of free variables in $\, g \,$ with +a mathematical term +formalizing the + G\"{o}del +number for representing ``g''. +\smallskip +\item[ iv] +$\mbox{SubstPrf}_{\alpha}^D~( \, g \, , \, t \, , \, p \,)$ +will denote the natural +hybridizations of the constructs from Items (ii) and (iii) +which yields a Boolean value of TRUE exactly when there +exists some integer $~h~$ +simultaneously +satisfying +{\it both} + $\mbox{Subst} \, ( \, g \, , \, h \, )$ and +$\mbox{ExPrf}_{~\alpha}^D~( \, h \, , \, t \, , \, p \,)$. +\end{description} +Each of (i)--(iv) +can be encoded as $\Delta_0^R$ formulae +when $\alpha$ is any recursively enumerable axiom system. +In particular, +Appendices C and D of \cite{ww1} +essentially established +(see footnote \footnote{The results of Wrathall +\cite{Wr78} have been noted by +H\'{a}jek--Pudl\'{a}k +\cite{HP91} +to imply that every LinH function +\cite{HP91,Kr95,Wr78} +has a $\Delta_0$ encoding. Using a slightly different +``$~\Delta_0^-~$''notation, the results from Appendices C and D + of \cite{ww1} +explained how this result would imply that the +each of +$\mbox{Prf}_{\alpha}^D~( t , p )$, +$~\mbox{ExPrf}_{\alpha}^D~( h , t , p )$ +and $\mbox{SubstPrf}_{\alpha}^D~( g , t , p)$ +have ``$~\Delta_0^-~$''encodings. Since the +$~\Delta_0^R~$ class of formalae is broader than +$~\Delta_0^-~$, $~$ + these formulae must also have +$~\Delta_0^R~$ encodings.} ) +that the first three of these predicates can receive + $\Delta_0^R$ encodings when one applies +the theory of LinH functions from +\cite{HP91,Kr95,Wr78} +in a reasonably +routine manner. +In such a context, \ep{encode} illustrates +one possible $\Delta_0^R$ encoding for +$\mbox{SubstPrf}_{\alpha}^D \,( g , t , p )$'s +graph. (It is +equivalent to +$~$``$~\exists ~h~[~\mbox{Subst} ( g , h )~\wedge~ +\mbox{ExPrf}_{\alpha}^D( h , t , p )\, ] \, \,$''$,~$ + but \ep{encode} is + a $\Delta_0^R$ formula --- {\it unlike} the quoted +expression.) +\begin{equation} +\label{encode} +\mbox{Prf}_{~\alpha}^D~( \, t \, , \, p \,)~~~\vee~~~\exists ~h\leq p +~~[~ \mbox{Subst} \, ( \, g \, , \, h \, )~\wedge~ +\mbox{ExPrf}_{~\alpha}^D~( \, h \, , \, t \, , \, p \,)~] +\end{equation} + + + + +Utilizing \eq{encode}'s + $\Delta_0^R$ encoding for +$\mbox{SubstPrf}_{\alpha}^D( g , t , p )$, it is +easy to +formulate a $\Pi_1^R$ encoding +for the +axiom sentence Diagonal$(\alpha,D)$. +Thus, let +$~\Gamma(g)~$ +denote \ep{encode2}'s formula, and let $~N~$ denote $~\Gamma(g)$'s +G\"{o}del number. $~\,$Then $~\Gamma(~ N~)~$ +is a $\Pi_1^R$ encoding for Diagonal$(\alpha,D)$. +\begin{equation} +\label{encode2} + \forall \, p \, \, \neg \, \, +\mbox{SubstPrf}_{\alpha}^D ( ~ g ~ , ~ \bot ~ , ~ p ~ ) +\end{equation} + +$\Box$ + +\bigskip + + + + + +{\bf Clarifying Comment: } +One +should be somewhat cautious in interpreting the meaning of \thx{tm2}. +It does not indicate that Diag(Ax-3) is a logically valid +statement under the standard model of the +natural numbers. Rather, it merely indicates + Diag(Ax-3) is a well defined $\Pi_1^R$ sentence. +In order to establish prove that + Diag(Ax-3) is also valid, +we will need the +added +force of \thx{tm3} below. + + +\begin{theorem} +\label{tm3} +Let Ax-3* +denote the union of +the axiom system + Ax-3 with the sentence Diag(Ax-3). +Then Ax-3* is consistent. +(Thus, +Ax-3 is an ``anti-threshold'' for the +Herbrandized version of the Second Incompleteness Theorem +under Definition 1's notation convention.) +\end{theorem} + +{\bf Proof of the Consistency Property of Ax-3* : $~$} +Suppose for the sake +of establishing a +proof-by-contradiction that Ax-3* was inconsistent. +Then one could identify a +proof $~P~$ of $~\bot~$ +whose G\"{o}del number $~\Theta(P)~$ is +the smallest G\"{o}del number of a Herbrand proof of + $~\bot~$ +from Ax-3*. We will now construct +from $~P~$ an alternate Herbrand proof $~R~$ of + $~\bot~$ where $~\Theta(R)~<~\Theta(P).~$ +The formal +construction of such a $~R~$ will suffice for our proof by +contradiction to reach its desired end because +such a $~R~$ cannot possibly exist +(on account of $P$'s minimality property). + +Our strategy is to + use \thx{tttccc} +to construct $~R~$ from $~P~$. +\thx{tttccc} is relevant to Ax-3* +because all the formal axiom +sentences of Ax-3* are +assuredly $\Pi_1^R$ +sentences (see +footnote \footnote{ \thx{tm2} +implies that the Diag(Ax-3) axiom of +Ax-3* has a $\Pi_1^R$ structure, and +Section \ref{s2}'s definition of Ax-3 implies that +all the other axiom-sentences belonging to Ax-3 are certainly +also +$\Pi_1^R$. } for the justification of this claim). +In such a context, +we may apply +\thx{tttccc} to conclude +that for some $~B~<~\Theta(P),~~$ at least one of +the axiom sentences of Ax-3* +must +fail to be a B-Bounded valid +$\Pi_1^R$ sentence. Moreover, it is obvious +that all the axioms of +Ax-3 possess an unbounded level of validity +(i.e they are $B-$Bounded valid {\it for all possible B}). + Hence, these two +observations imply +Diag(Ax-3) fails to be $B-$bounded valid +(simply because +some axiom from Ax-3* must fail to be $B-$bounded valid, and + Diag(Ax-3) is the only +available +axiom belonging to Ax-3* +that is not also a member of Ax-3.) + +The latter observation, +combined with Diag(Ax-3)'s definition implies +(see footnote \footnote{ The +strictly formalistic definition of +Diag(Ax-3) as the entity ``$~\Gamma(N)~$'' +(using a self-reference principle) +can be found in the last sentence of +\thx{tm2}'s +proof. The syntax of its \ep{encode2} +implies that if +Diag(Ax-3) fails to be +$B-$Bounded valid then another proof + $R$ must +assuredly exist for the sentence $~\bot$ +with $ \, \Theta(R)< B \,$.} ) that + some $~R~$ with + $ \, \Theta(R)< B \,$ +must +be another proof of $~\bot$. +Hence +our last two inequalities +certainly + imply that + $ \, \Theta(R)< \, B \, < \, \Theta(P) \,$. +This finishes +our proof-by-contradiction because + $~P$'s previously +presumed minimality has been contradicted by $R$. + $~~\Box$ + + +\bigskip + +{\bf Remark 2.} $~$ +Our discussion in this section had assumed that the terms $~T~$ in +a $\Delta_0^R$'s formula's bounded quantifiers included +{\it only the Maximum function symbol.} +The results of \thx{tm3} would actually also hold if these +quantifiers were also permitted to include the Addition function +symbol. (The only reason our discussion had omitted the +possibility that both +the +addition and maximum +function symbols + appear in +the $\Delta_0^R$ formula $\phi$'s bounded quantifiers in +\ep{wp} was for the sake of simplifying the presentation.) + + +\bigskip + +{\bf Remark 3.} $~$ +The attached Appendix B discusses +a yet further reason why +\thx{tm3} is of interest. +The +anonymous +referee had suggested we add +this appendix to the current paper. +Its methodologies are related to +Ko{\l}odziejczyk's observation \cite {Ko6b,Ko7} +that semantic tableaux and Herbrand deduction can sometimes +have an exponential difference in their +proof +lengths. +The purpose of Appendix B is to +sketch how one +can generalize \cite{ww7}'s +results for Ax-1 and Ax-2 to establish +that Ax-3 is also a threshold for the semantic tableaux +version of the Second Incompleteness Theorem. +In a context where \thx{tm3} +had established the polar opposite +result for Ax-3 +under Herbrand deduction, +this contrast is, of course, quite interesting. + + +\section{Discussion of Significance of Results} + +A comparison between our research and the prior research +of Kreisel-Takeuti and Pudl\'{a}k \cite{KT74,Pu85,Ta53} +was +postponed until the closing part of this current article +because the results from + Sections 3 and 4 +were needed to precede this discussion. + + + +In this section, +$~S(x)~$ will denote +the ``successor'' operation that maps the +integer $x$ onto $x+1$. +A formula + $ \varphi(x) $ is called \cite{HP91} a +{\bf Definable Cut for} +an axiom system $ \alpha $ iff +$ \alpha $ can prove: +\begin{equation} +\label{initdefx} +\varphi(0)~\mbox{ AND }~ +\forall~x~~ \{~\varphi(x)\Rightarrow\varphi[S(x)]~ \} + ~\mbox{ AND }~ +\forall~x ~\forall~y~B~$. +\end{lemma} + +\bigskip + +{\bf Proof-by-contradiction:} +Consider the contrary possibility that the +inequality $ \Theta(P) > B $ +failed and that $ P $ is a +Herbrand-proof of $ \bot $ from the system $ \alpha $ where + $ \Theta(P) \leq B $. +We shall denote this inequality as + $~***~~~$. + +\medskip + +Definition 6 had indicated +every term $~T~$ in the proof $~P~$ satisfies +the inequality of +$~\Theta(P)~>~$MinG$(T.)~$ Also, +Lemma \ref{lem2} implied Val$(T)<$MinG$(T)$. +These inequalities +and *** imply that every term $~T~$ +in the proof $~P~$ satisfies +\begin{equation} +\label{nice} +\mbox{Val}(T)~<~B +\end{equation} +\ep{nice} + implies all the terms + $ T_1,T_2,T_3... $ in the + Herbrandized instances in the proof $ P $ +satisfy $ $Val$(T_i) < B. $ +The normalized form of an instance +of a Skolemized axiom +is illustrated by \ep{xprot3}. The combination of +our + $ $Val$(T_i) < B $ inequalities together with +\eq{2prot3}'s $B-$Bounded constraint on $\alpha$'s axioms +implies that {\it each such instance of +\eq{xprot3} appearing in the proof $ P $ must +{\bf be automatically valid} +under the standard model +of the natural numbers.} +\begin{equation} +\label{xprot3} +\xbar{\psi} \,[ \, \, T_1 \, , \, f_1^{\psi}(T_1) \, , \, T_2 \, + , \, f_2^{\psi}(T_1,T_2) + ~, ~ \ldots , ~ ~ T_n \, , \, +f_n^{\psi}(T_1,T_2 ~ \ldots , ~T_n)~] +\end{equation} + + + + +The latter observation completes our proof-by-contradiction +because it contradicts the statement $***$ +that had started our proof. +More precisely $***$ had asserted that + $~P~$ was a +Herbrand-proof of $~\bot~$ +from the axiom system $~\alpha.~$ +However, the Footnote +\footnote{ The point here is simply that a conjunction of +Skolemized instances + can produce a proof of $~\bot~$ +only when there exists no model $~M~$ where all these instances are +simultaneously valid. Hence when the preceding paragraph +shows that all these Skolemized instances are simultaneously valid +under the Standard Model of the Natural Numbers, it implies that +certainly +{\it no such proof of $~\bot~$ can feasibly exist.}} +shows that such is impossible when the last sentence of the preceding +paragraph indicated that +each instance of \eq{xprot3}'s Skolemized axiom +is +valid under the standard model of the natural numbers. + $~~\Box$ + + +\medskip + +{\bf Finishing the Proof for \thx{tttccc}}. + $~~$ +It is easy to combine the machineries of +Lemmas \ref{lem3} and + \ref{lllttt} to complete the proof of \thx{tttccc}. +This is because Lemma \ref{lem3} had indicated +that every $B-$Bounded Valid $\Pi_1^R$ sentence can be +rewritten into a logically equivalent form that +has a $B-$Bounded Good Skolemization. +Thus, \thx{tttccc} +follows by simply taking such rewritten forms of +$~\alpha$'s axioms and then +applying Lemma \ref{lllttt}'s machinery. $~~\Box$ + + +\section*{Appendix B: An Analysis of Ax-3's Semantic Tableaux Properties} + + +This appendix will illustrate +how the methods of \cite{ww7} +may be extended to prove that +Ax-3 satisfies the semantic +tableaux version of the Second Incompleteness +Theorem. +Our discussion will +be closely related to +Ko{\l}odziejczyk's observations \cite {Ko6b,Ko7} that +(in the context of Buss's Bounded Arithmetic \cite{Bu86}) +semantic tableaux and Herbrand deduction can sometimes +have an exponential +or greater +difference in their +proof +lengths. +In a context where +\thx{tm3} had showed that Ax-3 was an +anti-threshold under Herbrand deduction, +the results in this appendix are noteworthy because +they imply Ax-3 has + polar opposite qualities under semantic tableaux +and Herbrand deduction. + + +The discussion in this +abbreviated + appendix will +assume that the reader is familiar with +\cite{ww7}'s proof that Ax-1 and Ax-2 satisfy the semantic +tableaux version of the Second Incompleteness Theorem. +We will also often rely upon +the notation convention from +the second paragraph of + Section 2 of +\cite{ww7} (which defined semantic tableaux deduction's +eight elimination rules). + + +It is desirable to +examine +a fourth +axiomization for \jjj , called Ax-4, +before considering +Ax-3 because such +an approach will help make +the underlying intuitions +behind our methodologies +easier to appreciate. +In our discussion, the symbol $~\Psi~$ will denote +the $\Pi_1^R$ sentence defined by \ep{b.1}. Ax-4 +will be defined to be an encoding of +\jjsj that is identical to Ax-3 except that it includes +\ep{b.1}'s added sentence. (Since Ax-3 can trivially prove +the validity of \ep{b.1}, the Ax-4 system is clearly +logically equivalent to Ax-3. Thus while proof lengths +may differ in these two axiom systems, the final theorems +that they derive are the same.) +\begin{equation} +\label{b.1} +\forall ~z~~~ \forall ~q \, \leq \, z~~~~[~~ +q*q~\leq~z~~\Rightarrow ~~ \exists ~r \, \leq~~z~~(~r=~q*q~)~~] +\end{equation} + +\begin{lemma} +\label{lem.b1} +The axiom system Ax-4 satisfies the semantic tableaux version +of the Second Incompleteness Theorem. (In other words using +Definition 1's notation, Ax-4 is a +``threshold +for the Second Incompleteness Effect'' under +semantic tableaux deduction). +\end{lemma} + +{\bf Proof Sketch:} +Our justification +of Lemma \ref{lem.b1} + will employ the +definition of +semantic tableaux deduction +that had appeared in Section 2 of \cite{ww7}. +Its second paragraph listed eight elimination rules for +semantic tableaux deduction. +For any term $~s,~$ +its sixth rule applies +to bounded existential quantifiers appearing in expressions +similar to: +\begin{equation} +\label{b.2} +\exists~v~\leq~s~~~\Theta(v) +\end{equation} +For an arbitrary new constant symbol $~U~$ that does not +appear in the base axiom system $~\alpha~$ or in any higher +node in the semantic tableaux proof tree, +this rule 6 allows +\ep{b.3} to be + a descendant of \ep{b.2}'s +node. +\begin{equation} +\label{b.3} +~U~\leq~s~~\wedge ~~\Theta(U) +\end{equation} + +Also +consider +\ep{b.4}'s +universally quantified + sentence. +\begin{equation} +\label{b.4} +\forall~v~~~\Phi(v) +\end{equation} +In this context for any term $~t~$ +which is free in $\Phi$, +the seventh elimination rule in +Section 2 of \cite{ww7} +indicated that a descendant of \ep{b.4}'s +sentence in a semantic tableaux proof tree +is allowed to be +any sentence of the form $~\Phi(t)~$. +In particular if we take $~t~$ to be a term of the +form ``$~U*U~$'' +(where $~U~$ was defined in \ep{b.3} ) +then this universal quantifier elimination +rule may produce the following reduction from \ep{b.4}. +\begin{equation} +\label{b.5} +\Phi(~U*U~) +\end{equation} + + +Lastly for any term $ \,\hat{s},~$ +consider +\ep{bc.4}'s sentence. +\begin{equation} +\label{bc.4} +\forall~v~\leq~\hat{s}~~~\Phi(v) +\end{equation} +In this context for any term $~t~$ +(again required to be free in $\Phi$), +the eighth elimination rule +from Section 2 of \cite{ww7} +indicated that +\ep{bc.5} is allowed to be + descendant of \ep{bc.4}'s +sentence in a semantic tableaux proof. +\begin{equation} +\label{bc.5} +t~\leq~\hat{s} ~~~\Rightarrow ~~~\Phi(t) +\end{equation} +Since +\ep{bc.5}'s + rule for eliminating universal quantifiers can apply to +any term $~t~$ +(free in $\Phi$), it is applicable to the case where $~t~$ is +a term of the form +``$~U~$'' where $~U~$ is a new constant +created by \ep{b.3}'s elimination rule. +In this special case, \ep{bc.5}'s elimination rule can be +rewritten as: +\begin{equation} +\label{bc.6} +U~\leq~\hat{s} ~~~\Rightarrow ~~~\Phi(~U~) +\end{equation} + + + +In essence, one may apply +to \ep{b.1} + $~n~$ iterations +of the elimination +rules from +Equations \eq{b.3}, \eq{b.5} +and \eq{bc.6} +to construct a sequence of +constants $ \, U_0 \, , \, U_1 \, , \, U_2 \, , \, \ldots \, U_n \, $ +such that $ \, U_0 \, = \, 2 \, $ and $ \, U_{i+1} \, = \, U_i*U_i \, $. +(The +footnote +\footnote{The $ \, i-$th iteration of this process will +have $~z~,~$ $~q~$ and $~r~$ from +\ep{b.1} be replaced by respectively $~U_i*U_i~,~$ +$~U_i~$ and $~U_{i+1}~$ via the elimination +rules from respectively Equations +\eq{b.5}, \eq{bc.6} and \eq{b.3} to produce +an essentially thrice-revised form of +\ep{b.1} which implies that $~U_{i+1}~=~U_i*U_i~$.} summarizes +the +structure of the $~i-$th round of these $~n~$ iterations.) +In a formal sense, these $~n~$ iterations may thus be simulated +by a fragment of a semantic tableaux proof tree, denoted as $~F~,~$ +where all +the branches of $~F~$ are closed except for one +branch, called the pivotal branch, which contains the +parameter symbols of $~U_0~,~U_1~,~U_2~,~ \ldots ~ U_n~$ +together with a collection of sentences, +appearing in linear order, asserting +that $~U_0~=~2~$ and $~U_{i+1} ~=~U_i*U_i~$. + +Hence this ``pivotal branch'' +of $~F~$ +will imply that $~U_n~=~2^{2^n}~$. Moreover since the +fragment $~F~$ +will have only $O(~n~)$ nodes, it will establish the +existence of a number + $~U_n~=~2^{2^n}~~,~$ whose binary encoding has a $~2^n~$ length +that is much larger than $~F \,$'s length. + +The above invariant is essentially all that we need to generalize +\cite{ww7}'s semantic tableaux version of the Second Incompleteness +Theorem so that it also applies to Ax-4. (We obviously +have omitted many +details here. +However, they are relatively straightforward +extensions of \cite{ww7}'s methodologies + because the +super-exponential growth property, established by the prior paragraphs, +opens an avenue for introducing +\cite{ww7}'s proof techniques, whose formal details are too +lengthy to +be +fully duplicated during this abbreviated proof +sketch.) $~~\Box$ + + + +The remainder of this appendix will sketch how Lemma \ref{lem.b1}'s +variant of the semantic tableaux version of the Second Incompleteness +Theorem can be extended from the axiom system Ax-4 to + Ax-3 (itself). +Before doing so, we wish to introduce one further preliminary lemma. + + + +\begin{lemma} +\label{lembb2} +The axiom system Ax-4 +satisfies the same + anti-threshold +property + for Herbrandized +deduction as did Ax-3 (in \thx{tm3} ). +\end{lemma} + +{\bf Proof Sketch} +Every aspect of the proof of \thx{tm3} +(for Ax-3) +does generalize also for Ax-4's paradigm. This is because +\thx{tm3}'s proof generalizes for any extension of Ax-3 that consists +of +a finite number of additional +logically valid +$\Pi_1^R$ sentences. +Thus, if $~\alpha~$ denotes any such an extension of +Ax-3 and if +$~\alpha^*~$ denotes +the extension of $~\alpha~$ which contains one additional +$\Pi_1^R$ sentence, asserting the consistency of +$~\alpha^*~$ (analogous to \thx{tm2}'s Diagonal$(\alpha,D)$ +sentence), then every aspect of +our prior analysis of Ax-3$^*$ applies also to +$~\alpha^*~$. +Thus using the same reasoning as before, it follows that +$~\alpha~$ (and hence +also Ax-4) must +be anti-thresholds relative to Herbrand deduction. +$~\Box$ + + +The combination of Lemmas \ref{lem.b1} +and \ref{lembb2} +already shows that semantic tableaux and Herbrand +deduction have polar opposite threshold properties +with respect to Ax-4. (This is because the latter satisfies the semantic +tableaux +version of the Second +Incompleteness Theorem, +but it does not also +satisfy + its Herbrandized +variant.) The same +pair of + polar opposite qualities +also applies to \jjj 's Ax-3 axiomization. However, the +proof that Ax-3 satisfies the semantic tableaux version of +the Second Incompleteness Theorem is +substantially +more complicated +than Lemma \ref{lem.b1}'s analogous +result for Ax-4. + + +The final goal in this appendix +will +thus be +to explain how one may incrementally revise +Lemma \ref{lem.b1}'s +proof-analysis + for Ax-4 so that a similar incompleteness property also +applies to Ax-3. +In our discussion, $~\xbar{\psi}(v)~$ will denote +the following $~\Delta_0^R$ formula, +which is free only in $~v~~$: +\begin{equation} +\label{tb.1} +\forall ~q \, \leq \, v~~~~[~~ +q*q~\leq~v~~\Rightarrow ~~ \exists ~r \, \leq~~v~~(~r=~q*q~)~~] +\end{equation} +In this notation, the sentence $~\Psi~$ that constituted +Ax-4's one additional $~\Pi_1^R~$ axiom-sentence (defined in +\ep{b.1} ) can be rewritten as: +\begin{equation} +\label{tb.2} +\forall ~v~~~ \xbar{\psi}(v) +\end{equation} +Note that Ax-3, unlike Ax-4, does not contain +\ep{tb.2}'s $\Pi_1^R$ sentence as an axiom of its formalism. +However using an analog of +``passive induction'' from our paper \cite{ww7}, +we will show Ax-3 contains a counterpart of \ep{tb.2} +within its inductive schema that has comparable properties. + + + +In particular, let $~\underx{\psi}(z)~$ denote the following +$\Delta_0^R$ formula: +\begin{equation} +\label{apb.wp1} + \{ \, \, \xbar{\psi}( 0) \, \, \wedge \, \, \forall y \leq z \, [ \, +\xbar{\psi}( y) \, \Longrightarrow \, \xbar{\psi}( y') \, \, ] \, \, \} \, \, \Longrightarrow \, \, + \forall y \leq z \, \xbar{\psi}( y) +\end{equation} +Then \ep{tb.3} represents an encoding of one +of Ax-3's induction axioms. +\begin{equation} +\label{tb.3} +\forall ~z~~~ \underx{\psi}(z) +\end{equation} +In order to explain the significance of this +added +notation, let $~\Psi~$ again denote +\ep{b.1}'s axiom sentence (which we saw was identical to +\ep{tb.2}'s sentence except that the latter uses a +slightly different +notation). Also, let $~\Psi^*~$ denote +\ep{tb.3}'s sentence. In this notation, +$~\Psi^*~$ +can be viewed as a cousin of $~\Psi~$ which has the property +that although $~\Psi~$ is not an axiom of Ax-3, its cousin +$~\Psi^*~$ is a formal axiom of Ax-3. + +The latter property is important because we need a vehicle +for formally translating proofs +from the Ax-4 +system +to proofs in +the Ax-3 system. +Since $~\Psi~$ is the only axiom belonging to Ax-4 which is not also +in Ax-3, +\ep{apb.wp1}'s formal counterpart +of it, +called $~\Psi^*~$, +will provide +a means for doing this translation. +The implications of this translation mechanism +is described by our next lemma. + +\begin{lemma} +\label{lembb3} +Let $~\Omega~$ +denote an arbitrary theorem that is proven +from the axiom system Ax-4 under a semantic tableaux +proof $~T~$ that consists of +$~n~$ applications of +the $~\forall ~$ elimination to rule to + \ep{tb.2}'s axiom sentence of $~\Psi~$. +For some term $~t_i~,~$ +let us assume that +the $~i-$th such application of +this rule +replaces +\ep{tb.2} +with the reduced sentence of +\begin{equation} +\label{tb.2r} +\xbar{\psi}(~t_i~) +\end{equation} +Then for a constant $~k~$ whose value is +entirely +independent of $~n~$, one can construct a proof $~T^*~$ +of the same theorem +$~\Omega~$ from the axiom system Ax-3 where the difference +between the number of node-sentences appearing in the proofs +of $~T~$ and of $~T^*~$ is bounded by +the quantity of $~kn~$. +\end{lemma} + +{\bf Proof:} +The justification of Lemma \ref{lembb3} +is fairly straightforward. On each occasion +where $~T \,$'s proof contains a node similar to +\ep{tb.2r}, the comparable structure in $~T^*~$ +will replace this sentence with a tree-fragment +that consists of the following +four components: +\bee +\item +An initial node-sentence of the form \eq{tb.cute} +(which is justified because it is an instance of +\ep{tb.3}'s + axiom sentence of $~\Psi^*~$ ). +\begin{equation} +\label{tb.cute} +\underx{\psi}(~ t_i~) +\end{equation} +\item +A branch separation will appear +directly below \ep{tb.cute}'s +node that consists of the two +sibling + sentences of +\eq{tb.cute1} and \eq{tb.cute2}. In light of +\ep{apb.wp1}'s definition of $~\underx{\psi}~,~$ +this binary separation is justified by the semantic tableaux +rule for eliminating +the $~\Rightarrow~$ symbol (which +was formalized by Item 4 +from the second paragraph of \cite{ww7}'s + Section 2). +\begin{equation} +\label{tb.cute1} +\neg ~~ \{ \, \, \xbar{\psi}( 0) \, \, \wedge \, \, \forall y \leq t_i \, [ \, +\xbar{\psi}( y) \, \Longrightarrow \, \xbar{\psi}( y') \, \, ] \, \, \} +\end{equation} +\begin{equation} +\label{tb.cute2} + \forall y \leq t_i \, \xbar{\psi}( y) +\end{equation} +\item +Since Ax-3 +can prove +\ep{b.1}'s sentence of $~\Psi~$ as a theorem, +it is trivial to establish that +for some fixed constant $~k_1~$ which does not depend on $~i~$, +one may insert a closed semantic tableaux proof +of length $~k_1~$ + under \ep{tb.cute1}'s +sentence, +$~$which accomplishes the desired effect of showing that \ep{tb.cute1} +is inherently contradictory. +\item +Using one more time +\cite{ww7}'s + semantic tableaux rules for eliminating the bounded +universal quantifiers and the $~\Rightarrow~$ symbol, +one may easily insert a branch below \ep{tb.cute2} +that ends with the pair of sibling sentences +given in equations +\eq{cute3} and \eq{cute4} below. +Moreover, it is evident that +\ep{cute3} is inherently contradictory. Thus for some fixed constant +$~k_2~$ (which again does not depend on $~i~)~$, +the net consequence of this step will be to consist of a sequence of +$~k_2~$ node sentences that includes the sentences given in +\eq{cute3} and \eq{cute4} and closes the proof-tree that descends +from \ep{cute3} with the desired forced contradiction. +\begin{equation} +\label{cute3} +\neg ~~(~~ t_i~ \leq ~ t_i~~) +\end{equation} +\begin{equation} +\label{cute4} +\xbar{\psi}( ~t_i~) +\end{equation} +\ene + +Let $~k~$ denote a constant that equals the quantity +of $~k_1 \, + \,~k_2 \, + \, 3~$. Then each iteration of +the above 4-step procedure will +replace +\ep{tb.2r}'s sentence with a subtree fragment +consisting of $~k~$ +new +sentences. +Note that the final sentence at the end of each such iteration +(given in \ep{cute4} ) +contains the +identical logical statement as +was given in +\ep{tb.2r}'s initial sentence. +Since all the other branches of our new sub-structure +are closed and since Equations +\eq{tb.2r} and +\ep{cute4} are identical +to each other, it follows that after we finish +performing $~n~$ iterations of the above process, +introducing $~kn~$ new sentences, our +new revised semantic tableaux tree will +prove the theorem $~\Omega~$ from Ax-3 instead of Ax-4. $~~~\Box$ + + + + + + +\begin{theorem} +\label{tapb} +The axiom system Ax-3 +(similar to Ax-4) + satisfies the semantic tableaux version +of the Second Incompleteness Theorem. (Thus using +Definition 1's notation, Ax-3 is also a +``threshold +for the Second Incompleteness Effect'' under +semantic tableaux deduction). +\end{theorem} + +{\bf Proof Sketch}: +For the sake of brevity, we will only outline +the intuition behind \thx{tapb}'s proof. +It will be essentially a consequence of the combination of +Lemmas \ref{lem.b1} and \ref{lembb3}. + + +In particular, the core idea behind Lemma \ref{lem.b1}'s +analysis of Ax-4 was to employ a sequence of $\,n\,$ iterated +applications of \ep{b.1}'s axiom of $\,\Psi\,$ +so as to construct a +formal +sequence of +constants $\,U_0\,,\,U_1\,,\,U_2\,,\, \ldots \, U_n\,$ +such that $\,U_0\,=\,2\,$ and $\,U_{i+1} \,=\,U_i*U_i\,$. +By Lemma \ref{lembb3}, the precisely identical +sequence of +$\,U_0\,,\,U_1\,,\,U_2\,,\, \ldots \, U_n\,$ +can be constructed from Ax-3 using only $\,kn\,$ additional +sentences, $\,$for some fixed constant $\,k\,$ whose value is independent +of $\,n\,$. + +Since $~U_n~$ represents the quantity of $~2^{2^n}~$ whose binary +encoding has a length of $~2^n~,~$ this binary length is clearly +much larger than $~kn~$ as $~n~$ approaches of infinity. As a +result of this exponential difference in lengths, it is relatively routine +to revise +Lemma \ref{lem.b1}'s +proof of the semantic tableaux version of the Second Incompleteness +Theorem for Ax-4 so that it may also apply to Ax-3. (The remaining details +are analogous to the constructions that we used in +\cite{ww2,ww7} and are omitted +for the sake of brevity.) $~~\Box$ + + +{\bf Summing Up What Has Been Done in this Appendix :} +We have outlined abbreviated proofs +showing that the +Ax-3 and Ax-4 encodings for \jjsj satisfy the semantic tableaux +versions of the Second Incompleteness Theorem. We visited +this topic twice because the result is easier to establish +for Ax-4, +$~$although + it is stronger for Ax-3. (The latter +is +stronger +because Ax-3 contains one less +axiom sentence than +Ax-4.) +Both our +results for + Ax-3 and Ax-4 are +interesting + because +these formalisms are +anti-thresholds +for the Herbrandized version of the Second Incompleteness +while they are thresholds +when the paradigm is changed to focus upon +semantic tableaux style deduction. + + +We close this appendix by once again reminding the reader that a +different +type of axiomatic setting +where semantic tableaux and Herbrandized proofs have +a sharp difference in length was formalized by +Ko{\l}odziejczyk in \cite {Ko6b,Ko7}. +(In particular, Ko{\l}odziejczyk \cite {Ko6b,Ko7} +focused his discussion on +Buss's bounded arithmetic +of \cite{Bu86}.) + + +\begin{thebibliography} +\small +\footnotesize + + + +\bibitem{Ad2} +Z. Adamowicz, +``Herbrand Consistency and Bounded +Arithmetic'', +{\it Fundamenta Mathematica} +171 (2002) 279-292. + + + +\bibitem{AB1} +Z. Adamowicz and T. Bigorajska, +``Existentially Closed Structures and G\"{o}del's Second Incompleteness +Theorem'', {\it Journal of Symbolic Logic} +66 (2001), 349-356. + + +\bibitem{AZ1} +Z. Adamowicz and P. Zbierski, +``On Herbrand consistency in weak theories'', +{\it Archive for Mathematical Logic} +40 (2001) pp. 399-413. + + +\bibitem{BS76} +A. Bezboruah and J. + Shepherdson, +``G\"{o}del's Second Incompleteness Theorem for Q'', +{\it Journal of Symb Logic} 41 (1976) 503-512. + + +\bibitem{Bu86} +S. Buss, Bounded Arithmetic, in +Proof Theory Lecture Notes, Vol. 3, published +by Bibliopolis, Naples, 1986. + + +\bibitem{BI95} S. Buss and A. Ignjatovic, ``Unprovability of Consistency +Statements in Frag. of Bounded Arithmetic'', {\it Annals Pure and +Applied Logic} 74 (1995)221-244. + + + +\bibitem{Da83} +M. Davis, +{\it Computability and Unsolvability} +McGraw Hill 1983. + +\bibitem{DPR61} +M. Davis, H. Putnam and J. Robinson, +``The Decision Problem for Exponential Diophantine Equations'', +{\it Annals of Mathematic} 74 (1961) pp. 425-436. + +\bibitem{Fe60} +S. Feferman, ``Arithmetization of Mathematics in a General Setting'', +{\it Fundamenta Mathematica} +19 (1960) pp. 35-92. + + +\bibitem{GD82} +H. Gaifman and C. Dimitracpoulos, +Fragments of Peano Arithmetic and the MDRP +Theorem, +{\it Logic and Algorithms}, +Monagraphies de l'Ensignment Mathamtique, 30 (1982) +pp. 197-206. + + + +\bibitem{Go31} +K. G\"{o}del, +`` \"{U}ber formal unentscheidbare S\"{a}tse der Principia +Mathematica und Verwandte Systeme I'', +{\it Monatshefte f\"{u}r Math. Phys.} 37 (1931) pp. 349-360. + + + +\bibitem{Ha71} +P. H\'{a}jek, +On Interpretability in Set Theory, +Part I in {\it Comm, Math, Univ. Carol} Volume 12 (1971) pp. 73--79 +and +Part II in Volume 13 (1972) pp. 445-455. + + + + + +\bibitem{HP91} +P. H\'{a}jek +and P. Pudl\'{a}k, +{\it Metamathematics of First Order Arithmetic,} +Springer Verlag 1991. + + + +\bibitem{He30} +J. Herbrand, Recherches sur la theorie de la demonstration, +{\it Travaux de la Soceite et des Lettres de Varsvoie} +III 33 pp. 33-160 (1930). + + +\bibitem{HB39} +D. Hilbert and P. Bernays, +{\it Grundlagen der Mathematic}, Springer 1939. + + + +\bibitem{Ka91} +R. Kaye, +{\it Models of Peano Arithmetic}, Oxford University +Press, 1991. + +\bibitem{Kl38} +S. +Kleene, +``On the Notation of Ordinal Numbers'', +{\it Journal of Symbolic Logic} +3 (1938), pp. +150-156. + + + +\bibitem{Ko6b} +L.A. Ko{\l}odziejczyk, +``Some results on Weak Consistency Statements in Weak Theories'', +talk at the JAF25 conference in Clermon-Ferrand (2006) +whose slides are available +at hhtp://www.cs.us.es/glm/jaf25-CMBFD/slides-lk.pdf. + +\bibitem{Ko7} + L.A. Ko{\l}odziejczyk, +``On the Herbrand Notion of Consistency for Finitely +Axiomatizable Fragments +of Bound Arithmetic'', +{\it Journal of Symbolic Logic} +71 (2006) pp. 624-638. + + + +\bibitem{Kr87} J. Kraj\'{i}cek, +``A Note on Proofs of Falsehood'', +{\it Archive for Math Logic} + 26 (1987) 169-176. + + +\bibitem{Kr95} J. Kraj\'{i}cek, +{\it Bounded Propositional Logic and Complexity Theory,} Cambridge +Unniversity +Press, 1995. + + + +\bibitem{KT74} +G. Kreisel and G. Takeuti, +``Formally Self-Referential Propositions for Cut-Free Classical +Analysis'', +Dissertationes Mathematicae +118 +(1974) pp. 1--55 + + + + +\bibitem{Lo55} M. H. L\"{o}b, A Solution to a Problem by Leon Henkin, +{\it JSL} +20(1955) pp 115-118 + +\bibitem{Ma93} +Y. Matiyasevich, {\it Hilbert's Tenth Problem}, +MIT Press (1993) + + +\bibitem{Ne86} +E. Nelson, {\it Predicative Arithmetic,} Math Notes, +Princeton Press, 1986. + + +\bibitem{PD82} +J. Paris and C. Dimitracopoulos, +``Truth definitions for $\Delta_0$ formulae'', + {\it Monagraphie de L'Enseignement Mathematique} 30 (1982) +pp. 317-329. + + +\bibitem{PD83} +J. Paris and C. Dimitracopoulos, +A Note on the Undefinability of Cuts, {\it Journal of Symbolic Logic} +48 (1983) pp. 564--569. + + + + +\bibitem{PW81} +J. Paris and A. Wilkie, +``$\Delta_0$ Sets and Induction'', +{\it 1981 Jadswin Conference Proceedings,} +(Leeds University Press) +pp. 237-248. + + + \bibitem{Pu83} + P. Pudl\'{a}k, + Some Prime Elements in the Lattice of + Interpretability + Types, + {\it Transactions of the American Mathematical + Society} 280 (1983) pp. 255-275 + + + +\bibitem{Pu84} +P. Pudl\'{a}k, +``On Lengths of Proofs of Finisitic Consistency Statements in +First order Theories'', +{\it Logic Colloquium 84}, North Holland (1986) +pp. 165-196. + + + +\bibitem{Pu85} +P. Pudl\'{a}k, +``Cuts, Consistency Statements and Interpretations'', +{\it Journal of Symbolic Logic} +50 (1985) 423-442 + + +\bibitem{Pu96} +P. Pudl\'{a}k, +``On the Lengths of Proofs of Consistency'', +in {\it The Collegium Logicum: The Offical 1996 Annals of Kurt G\"{o}del +Society} ( Volume 2), Springer-Wien-NewYork, +pp. 65-86. + + +\bibitem{Sa1} +S. Salehi, Herbrand Consistency in Arithmetics with +Bounded Induction, Polish Academy of +Sciences Ph D thesis, October 2001. + + + + \bibitem{Sm77} + C. Smory\'{n}ski, ``The Incompleteness Theorem'', +{\it The Handbook on Mathematical Logic}, +1977, {North Holland}, + pp. {821--865}. + + + \bibitem{Sm85} + C. Smory\'{n}ski, ``Non-standard Models and Related Developments + in the Work of Harvey Friedman'', in {\it Harvey Friedman's + Research in Foundations of Math.}, + North Holland 1985, pp. 179-220. + + + +\bibitem{So94} +R. Solovay, Private +telephone conversations between +Robert Solovay and Dan Willard +(during April of 1994) +concerning Solovay's generalization of one of Pudl\'{a}k's theorems +\cite{Pu85}, using also some of +Nelson's and Wilkie-Paris's methodologies \cite{Ne86,WP87}. +Solovay's unpublished theorem + shows that essentially no axiom system that recognizes +Successor$(x)~=~x+1~$ as a total function +(and which treats multiplication and addition as 3-way relations) + can prove a theorem +affirming its own consistency under Hilbert deduction. +The Appendix A of +\cite{ww1} offers a 4-page interpretation of the intuition behind +Solovay's unpublished idea. + + +\bibitem{Sv83} +V. \v{S}vejdar, Modal Analysis of Generalized +Rosser Sentences, +{\it Journal of Symbolic Logic} 48 (1983) pp. 986-999. + + + +\bibitem{Sw3} +S. Swierczkowski, +Finite Sets and G\"{o}del's Incompleteness Theorem +Dissertationes Mathematicae +422 (2003) +pp. 1--58 + + +\bibitem{Ta53} +G. Takeuti, +``On a Generalized Logical Calculus'', +{\it Japan Journal of Mathematics} +23 (1953) pp. 39--96. + + + + +\bibitem{Ta0} +G. Takeuti, +``G\"{o}del Sentences of Bounded Arithmetic'', +{\it Journal of Symbolic Logic} 65 (2000) pp. 1338-1346 + + \bibitem{TMR53} + A. Tarski, A. Mostowski and R. M. Robinson, + {\it Undecidable Theories}, North Holland, 1953. + + +\bibitem{Vi92} +A. Visser, +An Inside View of Exp (or The Closed +Fragment of The Provability Logic I$\Delta_0 + +\Omega_1$ +With a Propositional Constant for Exp), +{\it Journal of Symbolic Logic} 57 (1992) +pp. 131--165 + + +\bibitem{Vi93} +A. Visser, +``The Unprovability of Small Inconsistency'', +{\it Archive for Mathematical Logic} 32 (1993) pp. 275-298. + +\bibitem{Vi5} +A. Visser, + ``Faith and Falsity'', + {\it Annals Pure \& Applied Logic} +131 (2005), pp. 103-131. + + +\bibitem{VH73} +P. Vop\v{e}nka and P. H\'{a}jek, +Existence of a Generalized Semantic Model of +G\"{o}del-Bernays Set Theory, +{\it Bulletin de l'Academie Polonaise des +Sciences, +Mathmatiques, Astromiques et Physiques} +12 (1973) pp.1079-1086. + + + + +\bibitem{WP87} +A. Wilkie and J. Paris, +``On the Scheme of Induction for Bounded +Arithmetic'', + {\it Annals of Pure and Applied Logic} +(35) 1987, 261-302 + + +\bibitem{ww93} +D. Willard, +``Self-Verifying Axiom Systems'', {\it + Third Kurt G\"{o}del +Colloq} +(1993), +Springer-Verlag LNCS\#713, 325-336. + + + + +\bibitem{ww0} +D. Willard, +``The Semantic Tableaux Version of the Second +Incompleteness Theorem Extends Almost to +Robinson's +Arithmetic +Q'', +Springer Verlag LNCS\#1847, July 2000, + pp. 415-430. + +\bibitem{ww1} +D. Willard, ``Self-Verifying Systems, the Incompleteness +Theorem and the +Tangibility +Principle'', in +{\it Journal of Symbolic Logic} +$~66~ (2001)\,$ pp. 536-596. + + +\bibitem{ww2} +D. Willard, +``How to Extend The Semantic Tableaux And +Cut-Free Versions of the Second +Incompleteness Theorem +Almost +to +Robinson's Arithmetic Q'', in $~$ +{\it Journal of Symbolic Logic} +$~\,67~ (2002)~$ pp. 465--496. + + +\bibitem{ww4} +D. Willard, +``A Version of the +Second Incompleteness Theorem For Axiom +Systems that Recognize Addition +But Not Multiplication as a Total Function'', +{\it First Order Logic Revisited,} +Logos Verlag (Berlin) 2004, pp. 337--368. + + +\bibitem{ww5} +D. Willard, +``An Exploration of the Partial Respects in which an Axiom +System Recognizing Solely Addition as a Total Function Can +Verify Its Own Consistency'', +{\it Journal of Symbolic Logic} 70 (2005) pp. 1171-1209. + + +\bibitem{ww5b} +D. Willard, +``On the Available Partial Respects in which + an Axiomatization +for Real Valued Arithmetic Can Recognize its +Consistency'', +{\it Journal of Symbolic Logic} 71 (2006) +pp. 1189-1199. + + + +\bibitem{ww6} +D. Willard, +``A Generalization of the Second Incompleteness +Theorem and Some Exceptions to It'', +{\it Annals of Pure and Applied Logic} +141 (2006) +pp. 472-496. + +\bibitem{ww7} +D. Willard, +``Passive Induction and a Solution to a Paris-Wilkie +Open Question'', +{\it Annals of Pure and Applied Logic} +146 (2007) pp. 124-149. + + + +\bibitem{Wr78} +C. Wrathall, ``Rudimentary Predicates and Relative Computation'', +Siam J. on Computing 7 (1978), pp. 194-209. + + +\end{thebibliography} + + + +\end{document} diff --git a/nachlass/collected_dew_materials/llncs.cls b/nachlass/collected_dew_materials/llncs.cls new file mode 100644 index 0000000..06401a9 --- /dev/null +++ b/nachlass/collected_dew_materials/llncs.cls @@ -0,0 +1,1218 @@ +% LLNCS DOCUMENT CLASS -- version 2.20 (10-Mar-2018) +% Springer Verlag LaTeX2e support for Lecture Notes in Computer Science +% +%% +%% \CharacterTable +%% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z +%% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z +%% Digits \0\1\2\3\4\5\6\7\8\9 +%% Exclamation \! Double quote \" Hash (number) \# +%% Dollar \$ Percent \% Ampersand \& +%% Acute accent \' Left paren \( Right paren \) +%% Asterisk \* Plus \+ Comma \, +%% Minus \- Point \. 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+\def\@makeschapterhead#1{% +% \vspace*{50\p@}% + {\centering + \normalfont + \interlinepenalty\@M + \Large \bfseries #1\par\nobreak + \vskip 40\p@ + }} + +\renewcommand\section{\@startsection{section}{1}{\z@}% + {-18\p@ \@plus -4\p@ \@minus -4\p@}% + {12\p@ \@plus 4\p@ \@minus 4\p@}% + {\normalfont\large\bfseries\boldmath + \rightskip=\z@ \@plus 8em\pretolerance=10000 }} +\renewcommand\subsection{\@startsection{subsection}{2}{\z@}% + {-18\p@ \@plus -4\p@ \@minus -4\p@}% + {8\p@ \@plus 4\p@ \@minus 4\p@}% + {\normalfont\normalsize\bfseries\boldmath + \rightskip=\z@ \@plus 8em\pretolerance=10000 }} +\renewcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}% + {-18\p@ \@plus -4\p@ \@minus -4\p@}% + {-0.5em \@plus -0.22em \@minus -0.1em}% + {\normalfont\normalsize\bfseries\boldmath}} +\renewcommand\paragraph{\@startsection{paragraph}{4}{\z@}% + {-12\p@ \@plus -4\p@ \@minus -4\p@}% + {-0.5em \@plus -0.22em \@minus -0.1em}% + {\normalfont\normalsize\itshape}} +\renewcommand\subparagraph[1]{\typeout{LLNCS warning: You should not use + \string\subparagraph\space with this class}\vskip0.5cm +You should not use \verb|\subparagraph| with this class.\vskip0.5cm} + +\DeclareMathSymbol{\Gamma}{\mathalpha}{letters}{"00} +\DeclareMathSymbol{\Delta}{\mathalpha}{letters}{"01} +\DeclareMathSymbol{\Theta}{\mathalpha}{letters}{"02} +\DeclareMathSymbol{\Lambda}{\mathalpha}{letters}{"03} +\DeclareMathSymbol{\Xi}{\mathalpha}{letters}{"04} +\DeclareMathSymbol{\Pi}{\mathalpha}{letters}{"05} +\DeclareMathSymbol{\Sigma}{\mathalpha}{letters}{"06} +\DeclareMathSymbol{\Upsilon}{\mathalpha}{letters}{"07} +\DeclareMathSymbol{\Phi}{\mathalpha}{letters}{"08} +\DeclareMathSymbol{\Psi}{\mathalpha}{letters}{"09} +\DeclareMathSymbol{\Omega}{\mathalpha}{letters}{"0A} + +\let\footnotesize\small + +\if@custvec +\def\vec#1{\mathchoice{\mbox{\boldmath$\displaystyle#1$}} +{\mbox{\boldmath$\textstyle#1$}} +{\mbox{\boldmath$\scriptstyle#1$}} +{\mbox{\boldmath$\scriptscriptstyle#1$}}} +\fi + +\def\squareforqed{\hbox{\rlap{$\sqcap$}$\sqcup$}} +\def\qed{\ifmmode\squareforqed\else{\unskip\nobreak\hfil +\penalty50\hskip1em\null\nobreak\hfil\squareforqed +\parfillskip=0pt\finalhyphendemerits=0\endgraf}\fi} + +\def\getsto{\mathrel{\mathchoice {\vcenter{\offinterlineskip +\halign{\hfil +$\displaystyle##$\hfil\cr\gets\cr\to\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\textstyle##$\hfil\cr\gets +\cr\to\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\scriptstyle##$\hfil\cr\gets +\cr\to\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\scriptscriptstyle##$\hfil\cr +\gets\cr\to\cr}}}}} +\def\lid{\mathrel{\mathchoice {\vcenter{\offinterlineskip\halign{\hfil +$\displaystyle##$\hfil\cr<\cr\noalign{\vskip1.2pt}=\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\textstyle##$\hfil\cr<\cr +\noalign{\vskip1.2pt}=\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\scriptstyle##$\hfil\cr<\cr +\noalign{\vskip1pt}=\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\scriptscriptstyle##$\hfil\cr +<\cr +\noalign{\vskip0.9pt}=\cr}}}}} +\def\gid{\mathrel{\mathchoice {\vcenter{\offinterlineskip\halign{\hfil +$\displaystyle##$\hfil\cr>\cr\noalign{\vskip1.2pt}=\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\textstyle##$\hfil\cr>\cr +\noalign{\vskip1.2pt}=\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\scriptstyle##$\hfil\cr>\cr +\noalign{\vskip1pt}=\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\scriptscriptstyle##$\hfil\cr +>\cr +\noalign{\vskip0.9pt}=\cr}}}}} +\def\grole{\mathrel{\mathchoice {\vcenter{\offinterlineskip +\halign{\hfil +$\displaystyle##$\hfil\cr>\cr\noalign{\vskip-1pt}<\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\textstyle##$\hfil\cr +>\cr\noalign{\vskip-1pt}<\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\scriptstyle##$\hfil\cr +>\cr\noalign{\vskip-0.8pt}<\cr}}} +{\vcenter{\offinterlineskip\halign{\hfil$\scriptscriptstyle##$\hfil\cr +>\cr\noalign{\vskip-0.3pt}<\cr}}}}} +\def\bbbr{{\rm I\!R}} %reelle Zahlen +\def\bbbm{{\rm I\!M}} +\def\bbbn{{\rm I\!N}} %natuerliche Zahlen +\def\bbbf{{\rm I\!F}} +\def\bbbh{{\rm I\!H}} +\def\bbbk{{\rm I\!K}} +\def\bbbp{{\rm I\!P}} +\def\bbbone{{\mathchoice {\rm 1\mskip-4mu l} {\rm 1\mskip-4mu l} +{\rm 1\mskip-4.5mu l} {\rm 1\mskip-5mu l}}} +\def\bbbc{{\mathchoice {\setbox0=\hbox{$\displaystyle\rm C$}\hbox{\hbox +to0pt{\kern0.4\wd0\vrule height0.9\ht0\hss}\box0}} +{\setbox0=\hbox{$\textstyle\rm C$}\hbox{\hbox +to0pt{\kern0.4\wd0\vrule height0.9\ht0\hss}\box0}} +{\setbox0=\hbox{$\scriptstyle\rm C$}\hbox{\hbox +to0pt{\kern0.4\wd0\vrule height0.9\ht0\hss}\box0}} +{\setbox0=\hbox{$\scriptscriptstyle\rm C$}\hbox{\hbox +to0pt{\kern0.4\wd0\vrule height0.9\ht0\hss}\box0}}}} +\def\bbbq{{\mathchoice {\setbox0=\hbox{$\displaystyle\rm +Q$}\hbox{\raise +0.15\ht0\hbox to0pt{\kern0.4\wd0\vrule height0.8\ht0\hss}\box0}} +{\setbox0=\hbox{$\textstyle\rm Q$}\hbox{\raise +0.15\ht0\hbox to0pt{\kern0.4\wd0\vrule height0.8\ht0\hss}\box0}} +{\setbox0=\hbox{$\scriptstyle\rm Q$}\hbox{\raise +0.15\ht0\hbox to0pt{\kern0.4\wd0\vrule height0.7\ht0\hss}\box0}} +{\setbox0=\hbox{$\scriptscriptstyle\rm Q$}\hbox{\raise +0.15\ht0\hbox to0pt{\kern0.4\wd0\vrule height0.7\ht0\hss}\box0}}}} +\def\bbbt{{\mathchoice {\setbox0=\hbox{$\displaystyle\rm +T$}\hbox{\hbox to0pt{\kern0.3\wd0\vrule height0.9\ht0\hss}\box0}} +{\setbox0=\hbox{$\textstyle\rm T$}\hbox{\hbox +to0pt{\kern0.3\wd0\vrule height0.9\ht0\hss}\box0}} +{\setbox0=\hbox{$\scriptstyle\rm T$}\hbox{\hbox +to0pt{\kern0.3\wd0\vrule height0.9\ht0\hss}\box0}} +{\setbox0=\hbox{$\scriptscriptstyle\rm T$}\hbox{\hbox +to0pt{\kern0.3\wd0\vrule height0.9\ht0\hss}\box0}}}} +\def\bbbs{{\mathchoice +{\setbox0=\hbox{$\displaystyle \rm S$}\hbox{\raise0.5\ht0\hbox +to0pt{\kern0.35\wd0\vrule height0.45\ht0\hss}\hbox +to0pt{\kern0.55\wd0\vrule height0.5\ht0\hss}\box0}} +{\setbox0=\hbox{$\textstyle \rm S$}\hbox{\raise0.5\ht0\hbox +to0pt{\kern0.35\wd0\vrule height0.45\ht0\hss}\hbox +to0pt{\kern0.55\wd0\vrule height0.5\ht0\hss}\box0}} +{\setbox0=\hbox{$\scriptstyle \rm S$}\hbox{\raise0.5\ht0\hbox +to0pt{\kern0.35\wd0\vrule height0.45\ht0\hss}\raise0.05\ht0\hbox +to0pt{\kern0.5\wd0\vrule height0.45\ht0\hss}\box0}} +{\setbox0=\hbox{$\scriptscriptstyle\rm S$}\hbox{\raise0.5\ht0\hbox +to0pt{\kern0.4\wd0\vrule height0.45\ht0\hss}\raise0.05\ht0\hbox +to0pt{\kern0.55\wd0\vrule height0.45\ht0\hss}\box0}}}} +\def\bbbz{{\mathchoice {\hbox{$\mathsf\textstyle Z\kern-0.4em Z$}} +{\hbox{$\mathsf\textstyle Z\kern-0.4em Z$}} +{\hbox{$\mathsf\scriptstyle Z\kern-0.3em Z$}} +{\hbox{$\mathsf\scriptscriptstyle Z\kern-0.2em Z$}}}} + +\let\ts\, + +\setlength\leftmargini {17\p@} +\setlength\leftmargin {\leftmargini} +\setlength\leftmarginii {\leftmargini} +\setlength\leftmarginiii {\leftmargini} +\setlength\leftmarginiv {\leftmargini} +\setlength \labelsep {.5em} +\setlength \labelwidth{\leftmargini} +\addtolength\labelwidth{-\labelsep} + +\def\@listI{\leftmargin\leftmargini + \parsep 0\p@ \@plus1\p@ \@minus\p@ + \topsep 8\p@ \@plus2\p@ \@minus4\p@ + \itemsep0\p@} +\let\@listi\@listI +\@listi +\def\@listii {\leftmargin\leftmarginii + \labelwidth\leftmarginii + \advance\labelwidth-\labelsep + \topsep 0\p@ \@plus2\p@ \@minus\p@} +\def\@listiii{\leftmargin\leftmarginiii + \labelwidth\leftmarginiii + \advance\labelwidth-\labelsep + \topsep 0\p@ \@plus\p@\@minus\p@ + \parsep \z@ + \partopsep \p@ \@plus\z@ \@minus\p@} + +\renewcommand\labelitemi{\normalfont\bfseries --} +\renewcommand\labelitemii{$\m@th\bullet$} + +\setlength\arraycolsep{1.4\p@} +\setlength\tabcolsep{1.4\p@} + +\def\tableofcontents{\chapter*{\contentsname\@mkboth{{\contentsname}}% + {{\contentsname}}} + \def\authcount##1{\setcounter{auco}{##1}\setcounter{@auth}{1}} + \def\lastand{\ifnum\value{auco}=2\relax + \unskip{} \andname\ + \else + \unskip \lastandname\ + \fi}% + \def\and{\stepcounter{@auth}\relax + \ifnum\value{@auth}=\value{auco}% + \lastand + \else + \unskip, + \fi}% + \@starttoc{toc}\if@restonecol\twocolumn\fi} + +\def\l@part#1#2{\addpenalty{\@secpenalty}% + \addvspace{2em plus\p@}% % space above part line + \begingroup + \parindent \z@ + \rightskip \z@ plus 5em + \hrule\vskip5pt + \large % same size as for a contribution heading + \bfseries\boldmath % set line in boldface + \leavevmode % TeX command to enter horizontal mode. + #1\par + \vskip5pt + \hrule + \vskip1pt + \nobreak % Never break after part entry + \endgroup} + +\def\@dotsep{2} + +\let\phantomsection=\relax + +\def\hyperhrefextend{\ifx\hyper@anchor\@undefined\else +{}\fi} + +\def\addnumcontentsmark#1#2#3{% +\addtocontents{#1}{\protect\contentsline{#2}{\protect\numberline + {\thechapter}#3}{\thepage}\hyperhrefextend}}% +\def\addcontentsmark#1#2#3{% +\addtocontents{#1}{\protect\contentsline{#2}{#3}{\thepage}\hyperhrefextend}}% +\def\addcontentsmarkwop#1#2#3{% +\addtocontents{#1}{\protect\contentsline{#2}{#3}{0}\hyperhrefextend}}% + +\def\@adcmk[#1]{\ifcase #1 \or +\def\@gtempa{\addnumcontentsmark}% + \or \def\@gtempa{\addcontentsmark}% + \or \def\@gtempa{\addcontentsmarkwop}% + \fi\@gtempa{toc}{chapter}% +} +\def\addtocmark{% +\phantomsection +\@ifnextchar[{\@adcmk}{\@adcmk[3]}% +} + +\def\l@chapter#1#2{\addpenalty{-\@highpenalty} + \vskip 1.0em plus 1pt \@tempdima 1.5em \begingroup + \parindent \z@ \rightskip \@tocrmarg + \advance\rightskip by 0pt plus 2cm + \parfillskip -\rightskip \pretolerance=10000 + \leavevmode \advance\leftskip\@tempdima \hskip -\leftskip + {\large\bfseries\boldmath#1}\ifx0#2\hfil\null + \else + \nobreak + \leaders\hbox{$\m@th \mkern \@dotsep mu.\mkern + \@dotsep mu$}\hfill + \nobreak\hbox to\@pnumwidth{\hss #2}% + \fi\par + \penalty\@highpenalty \endgroup} + +\def\l@title#1#2{\addpenalty{-\@highpenalty} + \addvspace{8pt plus 1pt} + \@tempdima \z@ + \begingroup + \parindent \z@ \rightskip \@tocrmarg + \advance\rightskip by 0pt plus 2cm + \parfillskip -\rightskip \pretolerance=10000 + \leavevmode \advance\leftskip\@tempdima \hskip -\leftskip + #1\nobreak + \leaders\hbox{$\m@th \mkern \@dotsep mu.\mkern + \@dotsep mu$}\hfill + \nobreak\hbox to\@pnumwidth{\hss #2}\par + \penalty\@highpenalty \endgroup} + +\def\l@author#1#2{\addpenalty{\@highpenalty} + \@tempdima=15\p@ %\z@ + \begingroup + \parindent \z@ \rightskip \@tocrmarg + \advance\rightskip by 0pt plus 2cm + \pretolerance=10000 + \leavevmode \advance\leftskip\@tempdima %\hskip -\leftskip + \textit{#1}\par + \penalty\@highpenalty \endgroup} + +\setcounter{tocdepth}{0} +\newdimen\tocchpnum +\newdimen\tocsecnum +\newdimen\tocsectotal +\newdimen\tocsubsecnum +\newdimen\tocsubsectotal +\newdimen\tocsubsubsecnum +\newdimen\tocsubsubsectotal +\newdimen\tocparanum +\newdimen\tocparatotal +\newdimen\tocsubparanum +\tocchpnum=\z@ % no chapter numbers +\tocsecnum=15\p@ % section 88. plus 2.222pt +\tocsubsecnum=23\p@ % subsection 88.8 plus 2.222pt +\tocsubsubsecnum=27\p@ % subsubsection 88.8.8 plus 1.444pt +\tocparanum=35\p@ % paragraph 88.8.8.8 plus 1.666pt +\tocsubparanum=43\p@ % subparagraph 88.8.8.8.8 plus 1.888pt +\def\calctocindent{% +\tocsectotal=\tocchpnum +\advance\tocsectotal by\tocsecnum +\tocsubsectotal=\tocsectotal +\advance\tocsubsectotal by\tocsubsecnum +\tocsubsubsectotal=\tocsubsectotal +\advance\tocsubsubsectotal by\tocsubsubsecnum +\tocparatotal=\tocsubsubsectotal +\advance\tocparatotal by\tocparanum} +\calctocindent + +\def\l@section{\@dottedtocline{1}{\tocchpnum}{\tocsecnum}} +\def\l@subsection{\@dottedtocline{2}{\tocsectotal}{\tocsubsecnum}} +\def\l@subsubsection{\@dottedtocline{3}{\tocsubsectotal}{\tocsubsubsecnum}} +\def\l@paragraph{\@dottedtocline{4}{\tocsubsubsectotal}{\tocparanum}} +\def\l@subparagraph{\@dottedtocline{5}{\tocparatotal}{\tocsubparanum}} + +\def\listoffigures{\@restonecolfalse\if@twocolumn\@restonecoltrue\onecolumn + \fi\section*{\listfigurename\@mkboth{{\listfigurename}}{{\listfigurename}}} + \@starttoc{lof}\if@restonecol\twocolumn\fi} +\def\l@figure{\@dottedtocline{1}{0em}{1.5em}} + +\def\listoftables{\@restonecolfalse\if@twocolumn\@restonecoltrue\onecolumn + \fi\section*{\listtablename\@mkboth{{\listtablename}}{{\listtablename}}} + \@starttoc{lot}\if@restonecol\twocolumn\fi} +\let\l@table\l@figure + +\renewcommand\listoffigures{% + \section*{\listfigurename + \@mkboth{\listfigurename}{\listfigurename}}% + \@starttoc{lof}% + } + +\renewcommand\listoftables{% + \section*{\listtablename + \@mkboth{\listtablename}{\listtablename}}% + \@starttoc{lot}% + } + +\ifx\oribibl\undefined +\ifx\citeauthoryear\undefined +\renewenvironment{thebibliography}[1] + {\section*{\refname} + \def\@biblabel##1{##1.} + \small + \list{\@biblabel{\@arabic\c@enumiv}}% + {\settowidth\labelwidth{\@biblabel{#1}}% + \leftmargin\labelwidth + \advance\leftmargin\labelsep + \if@openbib + \advance\leftmargin\bibindent + \itemindent -\bibindent + \listparindent \itemindent + \parsep \z@ + \fi + \usecounter{enumiv}% + \let\p@enumiv\@empty + \renewcommand\theenumiv{\@arabic\c@enumiv}}% + \if@openbib + \renewcommand\newblock{\par}% + \else + \renewcommand\newblock{\hskip .11em \@plus.33em \@minus.07em}% + \fi + \sloppy\clubpenalty4000\widowpenalty4000% + \sfcode`\.=\@m} + {\def\@noitemerr + {\@latex@warning{Empty `thebibliography' environment}}% + \endlist} +\def\@lbibitem[#1]#2{\item[{[#1]}\hfill]\if@filesw + {\let\protect\noexpand\immediate + \write\@auxout{\string\bibcite{#2}{#1}}}\fi\ignorespaces} +\newcount\@tempcntc +\def\@citex[#1]#2{\if@filesw\immediate\write\@auxout{\string\citation{#2}}\fi + \@tempcnta\z@\@tempcntb\m@ne\def\@citea{}\@cite{\@for\@citeb:=#2\do + {\@ifundefined + {b@\@citeb}{\@citeo\@tempcntb\m@ne\@citea\def\@citea{,}{\bfseries + ?}\@warning + {Citation `\@citeb' on page \thepage \space undefined}}% + {\setbox\z@\hbox{\global\@tempcntc0\csname b@\@citeb\endcsname\relax}% + \ifnum\@tempcntc=\z@ \@citeo\@tempcntb\m@ne + \@citea\def\@citea{,}\hbox{\csname b@\@citeb\endcsname}% + \else + \advance\@tempcntb\@ne + \ifnum\@tempcntb=\@tempcntc + \else\advance\@tempcntb\m@ne\@citeo + \@tempcnta\@tempcntc\@tempcntb\@tempcntc\fi\fi}}\@citeo}{#1}} +\def\@citeo{\ifnum\@tempcnta>\@tempcntb\else + \@citea\def\@citea{,\,\hskip\z@skip}% + \ifnum\@tempcnta=\@tempcntb\the\@tempcnta\else + {\advance\@tempcnta\@ne\ifnum\@tempcnta=\@tempcntb \else + \def\@citea{--}\fi + \advance\@tempcnta\m@ne\the\@tempcnta\@citea\the\@tempcntb}\fi\fi} +\else +\renewenvironment{thebibliography}[1] + {\section*{\refname} + \small + \list{}% + {\settowidth\labelwidth{}% + \leftmargin\parindent + \itemindent=-\parindent + \labelsep=\z@ + \if@openbib + \advance\leftmargin\bibindent + \itemindent -\bibindent + \listparindent \itemindent + \parsep \z@ + \fi + \usecounter{enumiv}% + \let\p@enumiv\@empty + \renewcommand\theenumiv{}}% + \if@openbib + \renewcommand\newblock{\par}% + \else + \renewcommand\newblock{\hskip .11em \@plus.33em \@minus.07em}% + \fi + \sloppy\clubpenalty4000\widowpenalty4000% + \sfcode`\.=\@m} + {\def\@noitemerr + {\@latex@warning{Empty `thebibliography' environment}}% + \endlist} + \def\@cite#1{#1}% + \def\@lbibitem[#1]#2{\item[]\if@filesw + {\def\protect##1{\string ##1\space}\immediate + \write\@auxout{\string\bibcite{#2}{#1}}}\fi\ignorespaces} + \fi +\else +\@cons\@openbib@code{\noexpand\small} +\fi + +\def\idxquad{\hskip 10\p@}% space that divides entry from number + +\def\@idxitem{\par\hangindent 10\p@} + +\def\subitem{\par\setbox0=\hbox{--\enspace}% second order + \noindent\hangindent\wd0\box0}% index entry + +\def\subsubitem{\par\setbox0=\hbox{--\,--\enspace}% third + \noindent\hangindent\wd0\box0}% order index entry + +\def\indexspace{\par \vskip 10\p@ plus5\p@ minus3\p@\relax} + +\renewenvironment{theindex} + {\@mkboth{\indexname}{\indexname}% + \thispagestyle{empty}\parindent\z@ + \parskip\z@ \@plus .3\p@\relax + \let\item\par + \def\,{\relax\ifmmode\mskip\thinmuskip + \else\hskip0.2em\ignorespaces\fi}% + \normalfont\small + \begin{multicols}{2}[\@makeschapterhead{\indexname}]% + } + {\end{multicols}} + +\renewcommand\footnoterule{% + \kern-3\p@ + \hrule\@width 2truecm + \kern2.6\p@} + \newdimen\fnindent + \fnindent1em +\long\def\@makefntext#1{% + \parindent \fnindent% + \leftskip \fnindent% + \noindent + \llap{\hb@xt@1em{\hss\@makefnmark\ }}\ignorespaces#1} + +\long\def\@makecaption#1#2{% + \small + \vskip\abovecaptionskip + \sbox\@tempboxa{{\bfseries #1.} #2}% + \ifdim \wd\@tempboxa >\hsize + {\bfseries #1.} #2\par + \else + \global \@minipagefalse + \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}% + \fi + \vskip\belowcaptionskip} + +\def\fps@figure{htbp} +\def\fnum@figure{\figurename\thinspace\thefigure} +\def \@floatboxreset {% + \reset@font + \small + \@setnobreak + \@setminipage +} +\def\fps@table{htbp} +\def\fnum@table{\tablename~\thetable} +\renewenvironment{table} + {\setlength\abovecaptionskip{0\p@}% + \setlength\belowcaptionskip{10\p@}% + \@float{table}} + {\end@float} +\renewenvironment{table*} + {\setlength\abovecaptionskip{0\p@}% + \setlength\belowcaptionskip{10\p@}% + \@dblfloat{table}} + {\end@dblfloat} + +\long\def\@caption#1[#2]#3{\par\addcontentsline{\csname + ext@#1\endcsname}{#1}{\protect\numberline{\csname + the#1\endcsname}{\ignorespaces #2}}\begingroup + \@parboxrestore + \@makecaption{\csname fnum@#1\endcsname}{\ignorespaces #3}\par + \endgroup} + +% LaTeX does not provide a command to enter the authors institute +% addresses. The \institute command is defined here. + +\newcounter{@inst} +\newcounter{@auth} +\newcounter{auco} +\newdimen\instindent +\newbox\authrun +\newtoks\authorrunning +\newtoks\tocauthor +\newbox\titrun +\newtoks\titlerunning +\newtoks\toctitle + +\def\clearheadinfo{\gdef\@author{No Author Given}% + \gdef\@title{No Title Given}% + \gdef\@subtitle{}% + \gdef\@institute{No Institute Given}% + \gdef\@thanks{}% + \global\titlerunning={}\global\authorrunning={}% + \global\toctitle={}\global\tocauthor={}} + +\def\institute#1{\gdef\@institute{#1}} + +\def\institutename{\par + \begingroup + \parskip=\z@ + \parindent=\z@ + \setcounter{@inst}{1}% + \def\and{\par\stepcounter{@inst}% + \noindent$^{\the@inst}$\enspace\ignorespaces}% + \setbox0=\vbox{\def\thanks##1{}\@institute}% + \ifnum\c@@inst=1\relax + \gdef\fnnstart{0}% + \else + \xdef\fnnstart{\c@@inst}% + \setcounter{@inst}{1}% + \noindent$^{\the@inst}$\enspace + \fi + \ignorespaces + \@institute\par + \endgroup} + +\def\@fnsymbol#1{\ensuremath{\ifcase#1\or\star\or{\star\star}\or + {\star\star\star}\or \dagger\or \ddagger\or + \mathchar "278\or \mathchar "27B\or \|\or **\or \dagger\dagger + \or \ddagger\ddagger \else\@ctrerr\fi}} + +\def\inst#1{\unskip$^{#1}$} +\def\orcidID#1{\unskip$^{[#1]}$} % added MR 2018-03-10 +\def\fnmsep{\unskip$^,$} +\def\email#1{{\tt#1}} + +\AtBeginDocument{\@ifundefined{url}{\def\url#1{#1}}{}% +\@ifpackageloaded{babel}{% +\@ifundefined{extrasenglish}{}{\addto\extrasenglish{\switcht@albion}}% +\@ifundefined{extrasfrenchb}{}{\addto\extrasfrenchb{\switcht@francais}}% +\@ifundefined{extrasgerman}{}{\addto\extrasgerman{\switcht@deutsch}}% +\@ifundefined{extrasngerman}{}{\addto\extrasngerman{\switcht@deutsch}}% +}{\switcht@@therlang}% +\providecommand{\keywords}[1]{\def\and{{\textperiodcentered} }% +\par\addvspace\baselineskip +\noindent\keywordname\enspace\ignorespaces#1}% +\@ifpackageloaded{hyperref}{% +\def\doi#1{\href{https://doi.org/#1}{https://doi.org/#1}}}{ +\def\doi#1{https://doi.org/#1}} +} +\def\homedir{\~{ }} + +\def\subtitle#1{\gdef\@subtitle{#1}} +\clearheadinfo +% +%%% to avoid hyperref warnings +\providecommand*{\toclevel@author}{999} +%%% to make title-entry parent of section-entries +\providecommand*{\toclevel@title}{0} +% +\renewcommand\maketitle{\newpage +\phantomsection + \refstepcounter{chapter}% + \stepcounter{section}% + \setcounter{section}{0}% + \setcounter{subsection}{0}% + \setcounter{figure}{0} + \setcounter{table}{0} + \setcounter{equation}{0} + \setcounter{footnote}{0}% + \begingroup + \parindent=\z@ + \renewcommand\thefootnote{\@fnsymbol\c@footnote}% + \if@twocolumn + \ifnum \col@number=\@ne + \@maketitle + \else + \twocolumn[\@maketitle]% + \fi + \else + \newpage + \global\@topnum\z@ % Prevents figures from going at top of page. + \@maketitle + \fi + \thispagestyle{empty}\@thanks +% + \def\\{\unskip\ \ignorespaces}\def\inst##1{\unskip{}}% + \def\thanks##1{\unskip{}}\def\fnmsep{\unskip}% + \instindent=\hsize + \advance\instindent by-\headlineindent + \if!\the\toctitle!\addcontentsline{toc}{title}{\@title}\else + \addcontentsline{toc}{title}{\the\toctitle}\fi + \if@runhead + \if!\the\titlerunning!\else + \edef\@title{\the\titlerunning}% + \fi + \global\setbox\titrun=\hbox{\small\rm\unboldmath\ignorespaces\@title}% + \ifdim\wd\titrun>\instindent + \typeout{Title too long for running head. Please supply}% + \typeout{a shorter form with \string\titlerunning\space prior to + \string\maketitle}% + \global\setbox\titrun=\hbox{\small\rm + Title Suppressed Due to Excessive Length}% + \fi + \xdef\@title{\copy\titrun}% + \fi +% + \if!\the\tocauthor!\relax + {\def\and{\noexpand\protect\noexpand\and}% + \def\inst##1{}% added MR 2017-09-20 to remove inst numbers from the TOC + \def\orcidID##1{}% added MR 2017-09-20 to remove ORCID ids from the TOC + \protected@xdef\toc@uthor{\@author}}% + \else + \def\\{\noexpand\protect\noexpand\newline}% + \protected@xdef\scratch{\the\tocauthor}% + \protected@xdef\toc@uthor{\scratch}% + \fi + \addtocontents{toc}{\noexpand\protect\noexpand\authcount{\the\c@auco}}% + \addcontentsline{toc}{author}{\toc@uthor}% + \if@runhead + \if!\the\authorrunning! + \value{@inst}=\value{@auth}% + \setcounter{@auth}{1}% + \else + \edef\@author{\the\authorrunning}% + \fi + \global\setbox\authrun=\hbox{\def\inst##1{}% added MR 2017-09-20 to remove inst numbers from the runninghead + \def\orcidID##1{}% added MR 2017-09-20 to remove ORCID ids from the runninghead + \small\unboldmath\@author\unskip}% + \ifdim\wd\authrun>\instindent + \typeout{Names of authors too long for running head. Please supply}% + \typeout{a shorter form with \string\authorrunning\space prior to + \string\maketitle}% + \global\setbox\authrun=\hbox{\small\rm + Authors Suppressed Due to Excessive Length}% + \fi + \xdef\@author{\copy\authrun}% + \markboth{\@author}{\@title}% + \fi + \endgroup + \setcounter{footnote}{\fnnstart}% + \clearheadinfo} +% +\def\@maketitle{\newpage + \markboth{}{}% + \def\lastand{\ifnum\value{@inst}=2\relax + \unskip{} \andname\ + \else + \unskip \lastandname\ + \fi}% + \def\and{\stepcounter{@auth}\relax + \ifnum\value{@auth}=\value{@inst}% + \lastand + \else + \unskip, + \fi}% + \begin{center}% + \let\newline\\ + {\Large \bfseries\boldmath + \pretolerance=10000 + \@title \par}\vskip .8cm +\if!\@subtitle!\else {\large \bfseries\boldmath + \vskip -.65cm + \pretolerance=10000 + \@subtitle \par}\vskip .8cm\fi + \setbox0=\vbox{\setcounter{@auth}{1}\def\and{\stepcounter{@auth}}% + \def\thanks##1{}\@author}% + \global\value{@inst}=\value{@auth}% + \global\value{auco}=\value{@auth}% + \setcounter{@auth}{1}% +{\lineskip .5em +\noindent\ignorespaces +\@author\vskip.35cm} + {\small\institutename} + \end{center}% + } + +% definition of the "\spnewtheorem" command. +% +% Usage: +% +% \spnewtheorem{env_nam}{caption}[within]{cap_font}{body_font} +% or \spnewtheorem{env_nam}[numbered_like]{caption}{cap_font}{body_font} +% or \spnewtheorem*{env_nam}{caption}{cap_font}{body_font} +% +% New is "cap_font" and "body_font". It stands for +% fontdefinition of the caption and the text itself. +% +% "\spnewtheorem*" gives a theorem without number. +% +% A defined spnewthoerem environment is used as described +% by Lamport. +% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +\def\@thmcountersep{} +\def\@thmcounterend{.} + +\def\spnewtheorem{\@ifstar{\@sthm}{\@Sthm}} + +% definition of \spnewtheorem with number + +\def\@spnthm#1#2{% + \@ifnextchar[{\@spxnthm{#1}{#2}}{\@spynthm{#1}{#2}}} +\def\@Sthm#1{\@ifnextchar[{\@spothm{#1}}{\@spnthm{#1}}} + +\def\@spxnthm#1#2[#3]#4#5{\expandafter\@ifdefinable\csname #1\endcsname + {\@definecounter{#1}\@addtoreset{#1}{#3}% + \expandafter\xdef\csname the#1\endcsname{\expandafter\noexpand + \csname the#3\endcsname \noexpand\@thmcountersep \@thmcounter{#1}}% + \expandafter\xdef\csname #1name\endcsname{#2}% + \global\@namedef{#1}{\@spthm{#1}{\csname #1name\endcsname}{#4}{#5}}% + \global\@namedef{end#1}{\@endtheorem}}} + +\def\@spynthm#1#2#3#4{\expandafter\@ifdefinable\csname #1\endcsname + {\@definecounter{#1}% + \expandafter\xdef\csname the#1\endcsname{\@thmcounter{#1}}% + \expandafter\xdef\csname #1name\endcsname{#2}% + \global\@namedef{#1}{\@spthm{#1}{\csname #1name\endcsname}{#3}{#4}}% + \global\@namedef{end#1}{\@endtheorem}}} + +\def\@spothm#1[#2]#3#4#5{% + \@ifundefined{c@#2}{\@latexerr{No theorem environment `#2' defined}\@eha}% + {\expandafter\@ifdefinable\csname #1\endcsname + {\newaliascnt{#1}{#2}% + \expandafter\xdef\csname #1name\endcsname{#3}% + \global\@namedef{#1}{\@spthm{#1}{\csname #1name\endcsname}{#4}{#5}}% + \global\@namedef{end#1}{\@endtheorem}}}} + +\def\@spthm#1#2#3#4{\topsep 7\p@ \@plus2\p@ \@minus4\p@ +\refstepcounter{#1}% +\@ifnextchar[{\@spythm{#1}{#2}{#3}{#4}}{\@spxthm{#1}{#2}{#3}{#4}}} + +\def\@spxthm#1#2#3#4{\@spbegintheorem{#2}{\csname the#1\endcsname}{#3}{#4}% + \ignorespaces} + +\def\@spythm#1#2#3#4[#5]{\@spopargbegintheorem{#2}{\csname + the#1\endcsname}{#5}{#3}{#4}\ignorespaces} + +\def\@spbegintheorem#1#2#3#4{\trivlist + \item[\hskip\labelsep{#3#1\ #2\@thmcounterend}]#4} + +\def\@spopargbegintheorem#1#2#3#4#5{\trivlist + \item[\hskip\labelsep{#4#1\ #2}]{#4(#3)\@thmcounterend\ }#5} + +% definition of \spnewtheorem* without number + +\def\@sthm#1#2{\@Ynthm{#1}{#2}} + +\def\@Ynthm#1#2#3#4{\expandafter\@ifdefinable\csname #1\endcsname + {\global\@namedef{#1}{\@Thm{\csname #1name\endcsname}{#3}{#4}}% + \expandafter\xdef\csname #1name\endcsname{#2}% + \global\@namedef{end#1}{\@endtheorem}}} + +\def\@Thm#1#2#3{\topsep 7\p@ \@plus2\p@ \@minus4\p@ +\@ifnextchar[{\@Ythm{#1}{#2}{#3}}{\@Xthm{#1}{#2}{#3}}} + +\def\@Xthm#1#2#3{\@Begintheorem{#1}{#2}{#3}\ignorespaces} + +\def\@Ythm#1#2#3[#4]{\@Opargbegintheorem{#1} + {#4}{#2}{#3}\ignorespaces} + +\def\@Begintheorem#1#2#3{#3\trivlist + \item[\hskip\labelsep{#2#1\@thmcounterend}]} + +\def\@Opargbegintheorem#1#2#3#4{#4\trivlist + \item[\hskip\labelsep{#3#1}]{#3(#2)\@thmcounterend\ }} + +\if@envcntsect + \def\@thmcountersep{.} + \spnewtheorem{theorem}{Theorem}[section]{\bfseries}{\itshape} +\else + \spnewtheorem{theorem}{Theorem}{\bfseries}{\itshape} + \if@envcntreset + \@addtoreset{theorem}{section} + \else + \@addtoreset{theorem}{chapter} + \fi +\fi + +%definition of divers theorem environments +\spnewtheorem*{claim}{Claim}{\itshape}{\rmfamily} +\spnewtheorem*{proof}{Proof}{\itshape}{\rmfamily} +\if@envcntsame % alle Umgebungen wie Theorem. + \def\spn@wtheorem#1#2#3#4{\@spothm{#1}[theorem]{#2}{#3}{#4}} +\else % alle Umgebungen mit eigenem Zaehler + \if@envcntsect % mit section numeriert + \def\spn@wtheorem#1#2#3#4{\@spxnthm{#1}{#2}[section]{#3}{#4}} + \else % nicht mit section numeriert + \if@envcntreset + \def\spn@wtheorem#1#2#3#4{\@spynthm{#1}{#2}{#3}{#4} + \@addtoreset{#1}{section}} + \else + \def\spn@wtheorem#1#2#3#4{\@spynthm{#1}{#2}{#3}{#4} + \@addtoreset{#1}{chapter}}% + \fi + \fi +\fi +\spn@wtheorem{case}{Case}{\itshape}{\rmfamily} +\spn@wtheorem{conjecture}{Conjecture}{\itshape}{\rmfamily} +\spn@wtheorem{corollary}{Corollary}{\bfseries}{\itshape} +\spn@wtheorem{definition}{Definition}{\bfseries}{\itshape} +\spn@wtheorem{example}{Example}{\itshape}{\rmfamily} +\spn@wtheorem{exercise}{Exercise}{\itshape}{\rmfamily} +\spn@wtheorem{lemma}{Lemma}{\bfseries}{\itshape} +\spn@wtheorem{note}{Note}{\itshape}{\rmfamily} +\spn@wtheorem{problem}{Problem}{\itshape}{\rmfamily} +\spn@wtheorem{property}{Property}{\itshape}{\rmfamily} +\spn@wtheorem{proposition}{Proposition}{\bfseries}{\itshape} +\spn@wtheorem{question}{Question}{\itshape}{\rmfamily} +\spn@wtheorem{solution}{Solution}{\itshape}{\rmfamily} +\spn@wtheorem{remark}{Remark}{\itshape}{\rmfamily} + +\def\@takefromreset#1#2{% + \def\@tempa{#1}% + \let\@tempd\@elt + \def\@elt##1{% + \def\@tempb{##1}% + \ifx\@tempa\@tempb\else + \@addtoreset{##1}{#2}% + \fi}% + \expandafter\expandafter\let\expandafter\@tempc\csname cl@#2\endcsname + \expandafter\def\csname cl@#2\endcsname{}% + \@tempc + \let\@elt\@tempd} + +\def\theopargself{\def\@spopargbegintheorem##1##2##3##4##5{\trivlist + \item[\hskip\labelsep{##4##1\ ##2}]{##4##3\@thmcounterend\ }##5} + \def\@Opargbegintheorem##1##2##3##4{##4\trivlist + \item[\hskip\labelsep{##3##1}]{##3##2\@thmcounterend\ }} + } + +\renewenvironment{abstract}{% + \list{}{\advance\topsep by0.35cm\relax\small + \leftmargin=1cm + \labelwidth=\z@ + \listparindent=\z@ + \itemindent\listparindent + \rightmargin\leftmargin}\item[\hskip\labelsep + \bfseries\abstractname]} + {\endlist} + +\newdimen\headlineindent % dimension for space between +\headlineindent=1.166cm % number and text of headings. + +\def\ps@headings{\let\@mkboth\@gobbletwo + \let\@oddfoot\@empty\let\@evenfoot\@empty + \def\@evenhead{\normalfont\small\rlap{\thepage}\hspace{\headlineindent}% + \leftmark\hfil} + \def\@oddhead{\normalfont\small\hfil\rightmark\hspace{\headlineindent}% + \llap{\thepage}} + \def\chaptermark##1{}% + \def\sectionmark##1{}% + \def\subsectionmark##1{}} + +\def\ps@titlepage{\let\@mkboth\@gobbletwo + \let\@oddfoot\@empty\let\@evenfoot\@empty + \def\@evenhead{\normalfont\small\rlap{\thepage}\hspace{\headlineindent}% + \hfil} + \def\@oddhead{\normalfont\small\hfil\hspace{\headlineindent}% + \llap{\thepage}} + \def\chaptermark##1{}% + \def\sectionmark##1{}% + \def\subsectionmark##1{}} + +\if@runhead\ps@headings\else +\ps@empty\fi + +\setlength\arraycolsep{1.4\p@} +\setlength\tabcolsep{1.4\p@} + +\endinput +%end of file llncs.cls diff --git a/nachlass/collected_dew_materials/n.pdf b/nachlass/collected_dew_materials/n.pdf new file mode 100644 index 0000000..093c601 Binary files /dev/null and b/nachlass/collected_dew_materials/n.pdf differ diff --git a/nachlass/collected_dew_materials/n.tex b/nachlass/collected_dew_materials/n.tex new file mode 100644 index 0000000..06d2ad6 --- /dev/null +++ b/nachlass/collected_dew_materials/n.tex @@ -0,0 +1,1559 @@ + +%%% Robert Telephone 512 6932 + +colin recommended doctors Ron Hoenzsch, John Bashant, + +Marie Pesquera 475 9235 +1240 New Scottland Road, fax 475 0406 + + +Bashant Jan 8 2pm + +Dr. Gregory Strizich + +Neal Murray 442 3393 + +SkyMiles Password 1DC 2RO 3AS 4Dn 1329 + +Floght Confirm Number GR64UB flying aug 29 12.45 pm +returning Sept 7 + + + +Libary Systems 442 3631 HP Laser Jet 4423631 Rebecca Muckridge + +computer renaissance 689 0068 + +Irina 512 6932 + +Hwang's letters from Seoul, Lowell, Utah, Pittsburgh and Arizona State + where latter said his case was ``not clear cut'' at ASU although he + would vote for it. Problem was lack of publications. + +capito DIstrict Orthpedic 489 2666 +12.15 wednesday brian Quinn + +discount 718 301 0800 +New Irina the 0117 921 596 6342 + + +gregory dermatology 11.45 robert's appointemnt + +micheal lyons 489 5468 + +1800 321 4267 ext 4144 135 room in baltimore + +unclaimed properties look below for address +sigact.org + +437 3874 paid 140.36 in 2012 Lucille 437 4505 + +toilet clearner ``The Works'' + +James R Lewis + 2080 Central Avenue + Schenetady NY near Lisha Kill Road + after LIsha Kill Road 1 1/2 mile after 155 at red light + conitinue 2 or 3 hourses and turn left Large Black Mail Box + 2080 is address white house don't pass bill board + next house sells lawn mowers etc. + 90 dollars for six 456 3992 130 dollars + +DeBuits Theater Company directed by Jason Ford 542 8422 +Mickey Luce Lake George 793 3521 + +Mimi Clark at Middlebury 802 458 9252 +Rita Patey (assistent director) at Harvard 617 495 4024 +Mike Chin + + Emma Willard 833 1342 Jessa They will call me... + sharon return aug 23 + +429 2300 Albany Academy + +Averill Park 674 7000 8am-noon guidanve vounseling 7025 or better 7021 + Checkpoint Exam administered by Middle School + 674 7100 Middle School 7114 + +irinash14@yahoo.com + +sept8 7.15 9.15 11.35-2.05 41dollars amtrak +greyhound 2 800 231-2222 27 dollars + 7.45 8pm 8.45pm 930pm 11pm 1130pm 1201am no more + + after 7pm + +HabernigProductions.com + go to menu bar last choice is purchase a DVD + click to enter the store + +write a check to you + PO Box 3785, Kingston NY 12402 20dollars a dvd and 3 more dollars + + + + +caps Shrek 800 520 6303 press 1 habernig production in web + +ribert weyman 439 4806 + +tigerdirect.com +newegg.com + +abraham password compren + +%% jhu 410 735 6278 6143 6133 7718 or 1180 + +%% 1 800 393 6095 + +% id 1165270 pass word mGV6452 + + +la quita san diego 619 291 9100 107+parking 10 and tax + Karina talked to Alex + 5 minutes to sea worl 5 minutes to zoo +96, 81, 81 last three 74 10pernite parking + + + +irina364 5196 snow 475 0505 + + +fabiola 1-800 282 2774 122/nite closed 12.30 + + 7 100 bills for irina + +RH 956 597 056 (one) + +RH 956 428 483 through 488 (six) + + +Holiday 619 232 3861 130 not refundable + + +SHampton Inn San Diego 1531 Pacific Highway 99/109 619-233-8408 +The Sofia Hotel 800-826 0009 + + +Focs 12 888 421 1442 139=tax confrimation first nite 10759642 + second nite 326 DW 63N +hyatt regency new brunswick 732 873 1234 **** +2 albany street new brunswick nj 08901 +6.30 11am pool + +NJ turnpike to exit 9 Hyatt rte 18 north parking complimentary + +607 433 9000 Hampton Inn 129 confirm 812-898 39 + 433 2250 Holiday 129 no free brakfast but resteraunt cancel 51417955 + 432 7500 Clarion Down town 135 + +holiday inn 607-547-8000 + +Copy Shop 607 547 5150 + +88 west to exit 17 +Route 28 (north) 18 miles + +55 mph breakfast cooperstwon diner, Duoble A cafe, DJ's + + +parkplayhouse 434 2035 + +Roland Downs 399 9126 + +Irina 7-812-315-8206 + + +LOWELL CENTER HTEL IN MADISON 89 NITE + RES NUMB 237 075 +March 31 - april 3 + +1-608-256-2621 + +BUS COMPANY VAN GALDER + +zeltner 437 5700 march 21 wedensday 3.45 +av1shag maya 364 4885 + + + +George Washington Inn 202-337-6620 + +Funger Hall Room 221 George Washington University +corner of G street and 23-street (10-15 minutes) +distance .3miles (google 7 minutes) + +Reservation 759-853 149 per day + 759-854 249 per day + cancel 766 590 +824 New Hampshire Ave + + +jenny 201 242 7416 + +irina 364 5196 + 258 3463 + + + +AMS 401-455-4000 + +Westin Copley 617-262-9600 confirm 252-15009 159+tax parking 46 +10 humtimgton aavenue + + +Notre Dame J +ournal +user name =danwillard +password = willard772 + + +stupid survey alfred2ruth2debby password corn1998 + +comp ren + 689 0068 + +November 10 Drug Pick Up + +%% remeber that Ellen Kozgrove Brandeis, Fordhan, ALBANY + +Barry Eisenberg Empire College + +Benjamin Ginsburg politic science Fall of the Faculty + +Irina arriveing 5p as opposewd to 12.20 + +Easy Tech .- programs >AutoSave> Instant Restart -> Start Backup + +718 301 0800 +irina cell 011-7-921 873 1498 +home 7812 314 5255 + +Micro Soft Word Key: 7RH7K - 8CV77 - YDJMT - D7FG3 - 77KFJ + + +chair 765 2169 programs > accesoories > Telnet + +500 b- 503 8 518 a- 604 I 508 B- 660 B- and ? (took twice) 661 A + + +Yang Zhaohui 482-3397 cell 229 3709 + summer 59444 fall 84042 or 92 + + +Siobone 459 8565 + +charless and jenifer and +eric silver 10.30am firday + 674 1301 + +cell phonee 598 3736 jenifer and 598 7254 + +3.30 -6.30 today noon-3 sat 10.30 3.30 sunday + +gail taylor 785 8782 + +irina 258 3463 + +william goldenberg 516 770 1020 + +dan silver 301 729 7856 ** professional voice coach or music dept + work 877-982-2322 304-434-8000 x 248 + +** is still Dan's number + + + + microwave hear + hot water + therma care large size ask pharamcist + + + +cell 240-727-7024 + +250k auto-tech equip + +doxycycline 100mg twice day for 10-21 days JUST GOT + +cefuroxime axetil 500mg twice day 14-21 days BEFORE + +hoyel 888-532-4324 mon inn thurs out + +Physician Referall Services 1-877-262-8008 + +No GOOD +Timmothy J Sellati Albany Medical College (research on it) +Infectos Diseases PhD + +Jon SIlver 260 5980 +655 East 14 Street +Apt 2a +NY NY 10009-3139 + +587-5542 Lee? + +Days Inn 619 232 1077 +lawm mowing high school 475-0808 + service i used 966-5609 + chris jordan 439-8652 + +bill augustine 437 3733 +grant 6503 + +587 5542 lee nagel Exit 14 +2nd real left after bridge exactly 1 mile + + +carrie nemovicher 201-541-7204 + +burglar alarm 1234 initial password +my pasword irin + +avishagmaya@gmail.com + +AVIS RIP-OFF 1-800-678-3029 + CALLED ``TRAVELER'S ADVATAGE'' + cancellation number vvj 3206 + +brad armour garb 442 4256 (dep 4250) 439 1919 + +tues noon + +Micheal Braun 519-884-8575 + Wife = julia bora + + dance = American Dance Center + Phylis Latin 584-8733 + + +NY Times discount s88 ag1 + account numb 828 489 013 + +debby 4836 at ny times +1.75 5.75 3.80 + + +Days Inn Conventin Center 67.15 + 619-232-1077 res, 516 360 55 +Mariott 8200 9308 + +Nieba 503-234-7432 +cell phone 503-891=6192 +212 473x-7776 +aarhus on mainland + +Lundbee + +April 27 saturday 7pm York Avenue waldorf school at saratoga springs + +peter siegal 510-526 5213 + work 415- 667 0860 + +turbinate cauterization + +bob sarnoff and Louise 858 535 1638 w 4559100 6pm a week from monday +2nd cancel 006 010 145 8163 +aug 17-19 + + +Jingjan 522 6356 3pm + +if you like you to do the surgery +if you don't mind we would you prefer do we the surgery + +john kelly + +rsarnoffmd.aol.com + +Jeff Gardlin 202-267-5091 + 9-awa.tellfaa@faa.gov + + +peter home 510-526 5213 + cell 415-254-9154 + w0rk 415 667-0860 + +Frank Olken 703 292 7350 (direct) and 8900 (receptionist) 8am to 5.30 pm +Maria Zemakova + +sarah calametra fine + +Sarah.c.fine@gmail.com + + +dick.tsur +@gmail.com +dick tsur 650-968 8003**home 8040 cell 862 6962 after 9pm cal time. + + 1076 El Monte Avenue, Mountainview + Rte 17 meets calidornia 85 + Take 85 north to San Francisco + take El Camino Exit + proceed north on El camino + after 4 or 5 traffic lights left onto El Monte + 2 minutes and I'll see gas station on right + and then church on left. + House on right at 1076, driveway shared by 2 houses + + 5 pm + + 1 hour in dry weather + + +zeynop 1-347-647-0726 + +2.30 call to peter + + +directions West from University on University Street + 1 mile ?? right on San Pablo + 1 mile left on Solano Ave. + next street Adam Street right + 2 blocks down left sice 720 Adam Street +%%% home 2009 oct23 10.55 am + +%%% DON'T FORGET health insurance + +%% FLEX MED and credit card + +%% Must do taxes soon + +%% BUDCO 1 888 358 2198 Nov 25 + +%% NYSHIP + +%% Add Feferman reference to second draft + +%% ATT 1-877-879-1872 +%% +%% ATT code 359 650 1822 +%% +%% +%%cheap 1-877 879 1874 +%% +%%cide 628 762 1030 +%% diff --git a/nachlass/collected_dew_materials/nate-cam/june2020/7am-polished-draft b/nachlass/collected_dew_materials/nate-cam/june2020/7am-polished-draft new file mode 100644 index 0000000..06f3dda --- /dev/null +++ b/nachlass/collected_dew_materials/nate-cam/june2020/7am-polished-draft @@ -0,0 +1,1242 @@ +% 2020 5 june 6 6.1 am ( aftr spell and subsequent corredions) + + + + +% 2017 august 30 8.5 am MINOR REVISONS PAGE 6 +%%Removing rphraisng skinny as Robert recomeneded + + + +% vladimir mechanic 265-2212 + +% ``%ss% = sections seth recommendedI skip + +%\documentclass[11pt]{article} +%\documentclass[10pt]{article} +% \documentclass[11pt]{article} +\documentclass[12pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + +\addtolength{\oddsidemargin}{-1.1in} +\setlength{\textheight}{9.4 in} +\setlength{\textwidth}{6.5 in} +%%%% above paper + +%\setlength{\textwidth}{6,0 in} +%\setlength{\textwidth}{5,5 in} + +\addtolength{\topmargin}{-0.75in} + + +%% +%% \addtolength{\oddsidemargin}{-0.5 in} +%% \setlength{\textheight}{10.1 in} +%% \setlength{\textwidth}{7.5 in} +%% \addtolength{\topmargin}{-0.5in} + + + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{dff}[theorem]{$~~~~$ Definition} +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} +\newtheorem{ccr}[theorem]{$~~~~$Corrolary} +\newtheorem{coj}[theorem]{$~~~~$Conjecture} + + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\nop{ } +\def\nyp{\newpage } +% \def\nxp{ } +\def\nxp{ Here $~$NXP } + + +% \def\nyp{ } +% \def\nyp{ } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{Fact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\cjx}[1]{Conjecture \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + +%\title{Rough Summary of March 2012 Research Before I Attended +%the AMS March 17-18 Conference} + + +%% \title{ On +%% How the Revival of a Diluted +%% Version of +%% Hilbert's Consistency Program +%% %is +%% Should +%% Likely +%% Be +%% % Plausible and +%% % Veru +%% Germane +%% to Computer Science} + + +\title{$Very~~ Very~$ +Informal Notes for Cameron and Nate from Dan} + + +%% \title{On How +%% A Novel Indeterminately Defined +%% %$~\theta~ \gimel$ +%% Function Primitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + +%% +%% \title{On How +%% An Indeterminately Defined +%% $~\theta~ \gimel$ Function Prmitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + + + + + + + +%%% + + +%X%% \title{On How the +%X%% Ixntroducing of a +%X%% New $~\theta~$ Function Symbol +%X%% Into Arithmetic's Formalism Is +%X%% %Likely +%X%% Germane +%X%% to Devising Axiom Systems that Can +%X%% Appreciate Fragments of Their Own +%X%% Hilbert Consistency} + +%% \title{Why a Small Fragment of Hilbert's Consistency Program +%% Ought to Be Feasible +%% for Hilbert-like Deductive Methods +%% After A New $~\theta~$ Function Primitive +%% %AFTER A NEW ``$~\theta~$'' Function Primitive +%% Is Added to Arithmetic's Formalism} +%% + +%% \title{ A 2-Part Conjecture about +%% How a Much-Diluted but Non-Trivial +%% %Variant +%% Fragment +%% of +%% Hilbert's Consistency Program +%% Is +%% Likely +%% %Plausible +%% Feasible +%% for the +%% % Even the Challenging +%% Case of +%% Hilbert Deduction} + + + +% +% \title{ On +% How a Much-Diluted but Non-Trivial +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Is +% Likely +% %Plausible +% Feasible +% for Even the +% Challenging +% Case of +% Hilbert Deduction} +% +% %Plausible and +% % Veru +% % Germane +% %to Computer Science} +% +% +% %%% \title{\large \bf On the Revival of a Much-Diluted +% %%% but Non-Trivial +% %%% Version of +% %%% Hilbert's Consistency Program (And Its Applications +%%% for Computer Science, Mathematics and Philosophy)} + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard } +%Email = dew@cs.albany.edu.}} +%\newline +%Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + + +\baselineskip = 1.14 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + +\begin{center} +\large +June 6, 2020 +\end{center} + +\begin{abstract} +\Large +\baselineskip = 1.65 \normalbaselineskip +These notes are written quite informally +and they are meant to summarize the types of +probability distributions that will construct +a decently +``randomly'' +formalized $\Theta$ function for my Cornell paper. This manuscript was +written in only a couple of hours time, and I therefore apologize +for many likely examples of carelessness in my QUITE INFORMAL extension +of \cite{ww16}'s results. +\end{abstract} + + + + + + + + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + +\def\ttt2c{ } +\def\tttc{ } + +\def\tttc{\tiny \baselineskip = 0.8 \normalbaselineskip \parskip 0pt } +\def\ttt2c{\tiny \baselineskip = 0.7 \normalbaselineskip \parskip 0pt } +\def\tttc{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } + +\def\tttc{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } + + +\def\tttc{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } + + +\def\tttc{ \baselineskip = 1.14 \normalbaselineskip \parskip 3pt } +\def\ttt2c{ \baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +% \newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + + +\noindent + +% +% +% NNEW COMMENT +% +% +% The pdf version of this draft is verbatim identical to August's Version 3. +% The prior draft's abstract was incorrectly broadcast by Arxiv on the +% Internet, after I pressed a wrong computer button. Thus, +% Version 4 was issued. + + +\newpage + +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ } + + +\gvs + +\footnotesize + + +\def\gvs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +%%%old + + \def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + + \def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +%% march 31 + +\def\gvs{ \Large \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \LARGE \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \large \baselineskip = 2.2 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 2.2 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 5pt} + +\def\sgvs{ \small \baselineskip = 1.33 \normalbaselineskip \parskip 1pt} +\def\tttc{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + + +\def\gvs{ } + + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + \def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 9pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 9pt} + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + +\def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 5pt} + + +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 8pt} +\def\gvs{ \Large \baselineskip = 2.5 \normalbaselineskip \parskip 8pt} + + +%fffff + + +%fffff +\def\gvs{ \normalsize \baselineskip = 1.3 \normalbaselineskip \parskip 5pt} + +\def\gvx{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \Large \baselineskip = 1.9 \normalbaselineskip \parskip 5pt} + +\section{Crudely Composed Notes} +% \section{Scientific Notes of Dan Willard Notarized on Nov 22,2016} +%%%%%%%%%% 1111111111111111} +\label{ss1} + + + + + +\gvs + +I will use the phrase ``probability distribution'' quite informally +in our discussion. The goal is thus to ``invent'' {\it any type} +of Lebesgue measure that will assure that there is a probability +bounded below by some tiny constant $~c~$ where +\cite{ww16}'s $\Theta$ function will produce a consistent self-justifying +formalism. {\it Even if that probability is tiny,} any discovered +lower bound $~c~> ~ 0 ~$, +will assure that the IQFS($\beta$) +formalism is consistent when $~\beta~$ +holds true under the Standard Model. This is + because +IQFS($\beta$)'s + Group 0, 1 and 2 axioms trivially hold true under the standard model +and its final Group-3 axiom sentence cannot be proven false +when our probability framework can generate a model +where it holds with +an explicit +probability lower bound lower bound of $~c~> ~ 0 ~$. + +(In other words since ZF Set Theory can formalize the validity of +G\"{o}del's Completeness Theorem, the existence of some model +satisfying a probability lower bound lower bound $~c~> ~ 0 ~$ +will be sufficient for establishing that +the + Group-3 axiom's +self-justification statement will not be contradicted.) + + +Please allow me to be informal here because I am trying to +quickly + compose +a rough approximation of working notes, without delving into +a bevy of +tedious details. + +Let us recall that page 11 of \cite{ww16} +defines the $\zzthe(x)$ function-mapping +%% haphazard +to be an +operation + that maps powers of 2 +onto powers of 2 +subject to the following rules: + +\vspace*{- 0.6 em} +{\parskip -6 pt +\beq +\label{walk1} +\forall ~~x~~~~~ \mbox{Power}(x) ~~~ \Rightarrow ~~ +\mbox{Power}(~ \zzthe(x)~) +\enq +\beq +\label{walk2} +\forall ~~x~~~~~ \zzthe(x)~ \neq ~ 1 +\enq +\beq +\label{walk3} +\forall ~~x~~~ \forall ~~y ~~~~[~ x ~ \neq~ y ~ +\wedge ~\mbox{Power}(x)~] + \Rightarrow ~~ +\zzthe(x)~ \neq ~\zzthe(y) +\enq +\beq +\label{walk4} +\forall ~~x~~~~~ \neg ~ ~\mbox{Power}(x)~~~~ \Rightarrow ~~~~ +\zzthe(x)~=~0 +\enq} +We want our probability + distribution to have the property +that any recursively defined function has a zero + probability of +occurring. Thus the countable set of all recursively defined functions +will also have a probability zero of occurring. BUT YET +the $\zzthe(x)$ primitive will grow at a slow enough rate +that it is incapable of producing a fatal diagonalizing contradiction, +while satisfying the crucial constraints in Lines \eq{walk1}- \eq{walk3}. + +I can immediately think of three likely ways of doing this. +{\it +It is (?) possible all three +methods will +work, +successfully.} Among the three plausible methods, +Method A is the simplest procedure, and Method C is the most +complicated. The virtue of Method C is that it is the one that +I am most confident about, although its procedure is a complex +hybrid of methods A and B. + +All three of these +randomized +methods will first generate the value of +$ ~\zzthe(1)~$, and then calculate in chronological +oder the values of + $ ~\zzthe(2)~$, $ ~\zzthe(4)~$, $ ~\zzthe(8)~$ etc., +This chronological order is important because +once $ ~\zzthe(2^i)~$ +is assigned a values of $~2^K~$ +then all $~ j \, > \, i~$ are forbidden by rule 3 +from mapping $ ~\zzthe(2^j)~$ onto $~2^K~$. +This Rule 3 will be called the {\bf Exclusion Principle} +during our discussion of Methods A-C below: + + +\subsection{Method A: The ``Pairing Method''} + +The Pairing method will begin by finding the two smallest +powers of 2, +at least as large as 2, where no $ j 4$ +(or more) + under all +natural encodings of proofs +(including the examples given in +\cite{ww1,wwapal}). + But the point +is that our formalism +{\it has only the} $\Theta$ operation as +a primitive, +for + representing growth. +Thus, the natural probability +distributions from the prior section should establish something +to the effect that there is a +probability lower +bound +of + $c > 0$, +such that an +excessively fast + growth-rate will be impossible. + +Thus leaving aside many +messy details, this lower bound will assure that there is stochastic +model where growth is precluded at a fast enough rate for some +demonstrated model to form the type of counterexample +that G\"{o}del's Completeness Theorem needs to show that the + {\it ``I am consistent" axiom} needs for corroborating its claim +for self-justification. + +This result differs from my earlier work in that it needs ZF Set Theory +(rather than Peano Arithmetic) to corroborate what I call the +Consistency Preservation Property. That is fine and legal +because the system IQFS($\beta$) +affirms its own consistency via +a 1-sentence axiom. +Thus, ZF Set Theory's knowledge about +Lebesgue measures +should, likely, +indicate IQFS($\beta$) +is a competent +enough + formalism to make no false claims. + +\newpage +My apologies that the preceeding +short summary + is not a formal proof. +It merely outlines, +{\it very roughly}, + what I have in mind. + + + +\begin{thebibliography}{99} + + + + \normalsize +\parskip 5 pt +\baselineskip = 1.3 \normalbaselineskip + + + +\bibitem{ww1} +Willard, D. E.: + ``Self-verifying systems, the incompleteness +theorem and the tangibiltiy reflection +principle'', in +{\it Journal of Symbolic Logic} +$~66~ (2001)\,$ pp. 536-596. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explaining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + +\bibitem{wwapal} +Willard, D. E.: +``A generalization of the second incompleteness +theorem and some exceptions to it''. +{\it Annals of Pure and Applied Logic} +141 (2006) +pp. 472-496. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + + + +\bibitem{ww16} +Willard, D. E.: +On how the introducing of a + new $~\theta~$ function symbol +into arithmetic's formalism is +germane +to devising axiom systems that can +appreciate fragments of their own +Hilbert consistency. +{\it +Cornell Archives arXiv Report} +1612.08071v5 + (2017). + + +\bibitem{ww20} +Willard, D. E.: +``On the Tender Line +Separating Generalizations and Boundary-Case Exceptions for the +Second Incompleteness Theorem under Semantic Tableaux +Deduction'', +a talk given +on January 7 at the LFCS 2020 conference. +Early version in +Volume 11972 of + Springer's LNCS series, and longer version sent to +Cameron and Nate. + + +\end{thebibliography} +\end{document} + diff --git a/nachlass/collected_dew_materials/nate-cam/june2020/7am-polished-draft.pdf b/nachlass/collected_dew_materials/nate-cam/june2020/7am-polished-draft.pdf new file mode 100644 index 0000000..97ac31a Binary files /dev/null and b/nachlass/collected_dew_materials/nate-cam/june2020/7am-polished-draft.pdf differ diff --git a/nachlass/collected_dew_materials/nate-cam/june2020/backup-7am-june6.pdf b/nachlass/collected_dew_materials/nate-cam/june2020/backup-7am-june6.pdf new file mode 100644 index 0000000..97ac31a Binary files /dev/null and b/nachlass/collected_dew_materials/nate-cam/june2020/backup-7am-june6.pdf differ diff --git a/nachlass/collected_dew_materials/nate-cam/june2020/n-print.tex b/nachlass/collected_dew_materials/nate-cam/june2020/n-print.tex new file mode 100644 index 0000000..06f3dda --- /dev/null +++ b/nachlass/collected_dew_materials/nate-cam/june2020/n-print.tex @@ -0,0 +1,1242 @@ +% 2020 5 june 6 6.1 am ( aftr spell and subsequent corredions) + + + + +% 2017 august 30 8.5 am MINOR REVISONS PAGE 6 +%%Removing rphraisng skinny as Robert recomeneded + + + +% vladimir mechanic 265-2212 + +% ``%ss% = sections seth recommendedI skip + +%\documentclass[11pt]{article} +%\documentclass[10pt]{article} +% \documentclass[11pt]{article} +\documentclass[12pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + +\addtolength{\oddsidemargin}{-1.1in} +\setlength{\textheight}{9.4 in} +\setlength{\textwidth}{6.5 in} +%%%% above paper + +%\setlength{\textwidth}{6,0 in} +%\setlength{\textwidth}{5,5 in} + +\addtolength{\topmargin}{-0.75in} + + +%% +%% \addtolength{\oddsidemargin}{-0.5 in} +%% \setlength{\textheight}{10.1 in} +%% \setlength{\textwidth}{7.5 in} +%% \addtolength{\topmargin}{-0.5in} + + + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{dff}[theorem]{$~~~~$ Definition} +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} +\newtheorem{ccr}[theorem]{$~~~~$Corrolary} +\newtheorem{coj}[theorem]{$~~~~$Conjecture} + + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\nop{ } +\def\nyp{\newpage } +% \def\nxp{ } +\def\nxp{ Here $~$NXP } + + +% \def\nyp{ } +% \def\nyp{ } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{Fact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\cjx}[1]{Conjecture \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + +%\title{Rough Summary of March 2012 Research Before I Attended +%the AMS March 17-18 Conference} + + +%% \title{ On +%% How the Revival of a Diluted +%% Version of +%% Hilbert's Consistency Program +%% %is +%% Should +%% Likely +%% Be +%% % Plausible and +%% % Veru +%% Germane +%% to Computer Science} + + +\title{$Very~~ Very~$ +Informal Notes for Cameron and Nate from Dan} + + +%% \title{On How +%% A Novel Indeterminately Defined +%% %$~\theta~ \gimel$ +%% Function Primitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + +%% +%% \title{On How +%% An Indeterminately Defined +%% $~\theta~ \gimel$ Function Prmitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + + + + + + + +%%% + + +%X%% \title{On How the +%X%% Ixntroducing of a +%X%% New $~\theta~$ Function Symbol +%X%% Into Arithmetic's Formalism Is +%X%% %Likely +%X%% Germane +%X%% to Devising Axiom Systems that Can +%X%% Appreciate Fragments of Their Own +%X%% Hilbert Consistency} + +%% \title{Why a Small Fragment of Hilbert's Consistency Program +%% Ought to Be Feasible +%% for Hilbert-like Deductive Methods +%% After A New $~\theta~$ Function Primitive +%% %AFTER A NEW ``$~\theta~$'' Function Primitive +%% Is Added to Arithmetic's Formalism} +%% + +%% \title{ A 2-Part Conjecture about +%% How a Much-Diluted but Non-Trivial +%% %Variant +%% Fragment +%% of +%% Hilbert's Consistency Program +%% Is +%% Likely +%% %Plausible +%% Feasible +%% for the +%% % Even the Challenging +%% Case of +%% Hilbert Deduction} + + + +% +% \title{ On +% How a Much-Diluted but Non-Trivial +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Is +% Likely +% %Plausible +% Feasible +% for Even the +% Challenging +% Case of +% Hilbert Deduction} +% +% %Plausible and +% % Veru +% % Germane +% %to Computer Science} +% +% +% %%% \title{\large \bf On the Revival of a Much-Diluted +% %%% but Non-Trivial +% %%% Version of +% %%% Hilbert's Consistency Program (And Its Applications +%%% for Computer Science, Mathematics and Philosophy)} + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard } +%Email = dew@cs.albany.edu.}} +%\newline +%Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + + +\baselineskip = 1.14 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + +\begin{center} +\large +June 6, 2020 +\end{center} + +\begin{abstract} +\Large +\baselineskip = 1.65 \normalbaselineskip +These notes are written quite informally +and they are meant to summarize the types of +probability distributions that will construct +a decently +``randomly'' +formalized $\Theta$ function for my Cornell paper. This manuscript was +written in only a couple of hours time, and I therefore apologize +for many likely examples of carelessness in my QUITE INFORMAL extension +of \cite{ww16}'s results. +\end{abstract} + + + + + + + + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + +\def\ttt2c{ } +\def\tttc{ } + +\def\tttc{\tiny \baselineskip = 0.8 \normalbaselineskip \parskip 0pt } +\def\ttt2c{\tiny \baselineskip = 0.7 \normalbaselineskip \parskip 0pt } +\def\tttc{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } + +\def\tttc{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } + + +\def\tttc{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } + + +\def\tttc{ \baselineskip = 1.14 \normalbaselineskip \parskip 3pt } +\def\ttt2c{ \baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +% \newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + + +\noindent + +% +% +% NNEW COMMENT +% +% +% The pdf version of this draft is verbatim identical to August's Version 3. +% The prior draft's abstract was incorrectly broadcast by Arxiv on the +% Internet, after I pressed a wrong computer button. Thus, +% Version 4 was issued. + + +\newpage + +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ } + + +\gvs + +\footnotesize + + +\def\gvs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +%%%old + + \def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + + \def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +%% march 31 + +\def\gvs{ \Large \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \LARGE \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \large \baselineskip = 2.2 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 2.2 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 5pt} + +\def\sgvs{ \small \baselineskip = 1.33 \normalbaselineskip \parskip 1pt} +\def\tttc{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + + +\def\gvs{ } + + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + \def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 9pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 9pt} + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + +\def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 5pt} + + +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 8pt} +\def\gvs{ \Large \baselineskip = 2.5 \normalbaselineskip \parskip 8pt} + + +%fffff + + +%fffff +\def\gvs{ \normalsize \baselineskip = 1.3 \normalbaselineskip \parskip 5pt} + +\def\gvx{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \Large \baselineskip = 1.9 \normalbaselineskip \parskip 5pt} + +\section{Crudely Composed Notes} +% \section{Scientific Notes of Dan Willard Notarized on Nov 22,2016} +%%%%%%%%%% 1111111111111111} +\label{ss1} + + + + + +\gvs + +I will use the phrase ``probability distribution'' quite informally +in our discussion. The goal is thus to ``invent'' {\it any type} +of Lebesgue measure that will assure that there is a probability +bounded below by some tiny constant $~c~$ where +\cite{ww16}'s $\Theta$ function will produce a consistent self-justifying +formalism. {\it Even if that probability is tiny,} any discovered +lower bound $~c~> ~ 0 ~$, +will assure that the IQFS($\beta$) +formalism is consistent when $~\beta~$ +holds true under the Standard Model. This is + because +IQFS($\beta$)'s + Group 0, 1 and 2 axioms trivially hold true under the standard model +and its final Group-3 axiom sentence cannot be proven false +when our probability framework can generate a model +where it holds with +an explicit +probability lower bound lower bound of $~c~> ~ 0 ~$. + +(In other words since ZF Set Theory can formalize the validity of +G\"{o}del's Completeness Theorem, the existence of some model +satisfying a probability lower bound lower bound $~c~> ~ 0 ~$ +will be sufficient for establishing that +the + Group-3 axiom's +self-justification statement will not be contradicted.) + + +Please allow me to be informal here because I am trying to +quickly + compose +a rough approximation of working notes, without delving into +a bevy of +tedious details. + +Let us recall that page 11 of \cite{ww16} +defines the $\zzthe(x)$ function-mapping +%% haphazard +to be an +operation + that maps powers of 2 +onto powers of 2 +subject to the following rules: + +\vspace*{- 0.6 em} +{\parskip -6 pt +\beq +\label{walk1} +\forall ~~x~~~~~ \mbox{Power}(x) ~~~ \Rightarrow ~~ +\mbox{Power}(~ \zzthe(x)~) +\enq +\beq +\label{walk2} +\forall ~~x~~~~~ \zzthe(x)~ \neq ~ 1 +\enq +\beq +\label{walk3} +\forall ~~x~~~ \forall ~~y ~~~~[~ x ~ \neq~ y ~ +\wedge ~\mbox{Power}(x)~] + \Rightarrow ~~ +\zzthe(x)~ \neq ~\zzthe(y) +\enq +\beq +\label{walk4} +\forall ~~x~~~~~ \neg ~ ~\mbox{Power}(x)~~~~ \Rightarrow ~~~~ +\zzthe(x)~=~0 +\enq} +We want our probability + distribution to have the property +that any recursively defined function has a zero + probability of +occurring. Thus the countable set of all recursively defined functions +will also have a probability zero of occurring. BUT YET +the $\zzthe(x)$ primitive will grow at a slow enough rate +that it is incapable of producing a fatal diagonalizing contradiction, +while satisfying the crucial constraints in Lines \eq{walk1}- \eq{walk3}. + +I can immediately think of three likely ways of doing this. +{\it +It is (?) possible all three +methods will +work, +successfully.} Among the three plausible methods, +Method A is the simplest procedure, and Method C is the most +complicated. The virtue of Method C is that it is the one that +I am most confident about, although its procedure is a complex +hybrid of methods A and B. + +All three of these +randomized +methods will first generate the value of +$ ~\zzthe(1)~$, and then calculate in chronological +oder the values of + $ ~\zzthe(2)~$, $ ~\zzthe(4)~$, $ ~\zzthe(8)~$ etc., +This chronological order is important because +once $ ~\zzthe(2^i)~$ +is assigned a values of $~2^K~$ +then all $~ j \, > \, i~$ are forbidden by rule 3 +from mapping $ ~\zzthe(2^j)~$ onto $~2^K~$. +This Rule 3 will be called the {\bf Exclusion Principle} +during our discussion of Methods A-C below: + + +\subsection{Method A: The ``Pairing Method''} + +The Pairing method will begin by finding the two smallest +powers of 2, +at least as large as 2, where no $ j 4$ +(or more) + under all +natural encodings of proofs +(including the examples given in +\cite{ww1,wwapal}). + But the point +is that our formalism +{\it has only the} $\Theta$ operation as +a primitive, +for + representing growth. +Thus, the natural probability +distributions from the prior section should establish something +to the effect that there is a +probability lower +bound +of + $c > 0$, +such that an +excessively fast + growth-rate will be impossible. + +Thus leaving aside many +messy details, this lower bound will assure that there is stochastic +model where growth is precluded at a fast enough rate for some +demonstrated model to form the type of counterexample +that G\"{o}del's Completeness Theorem needs to show that the + {\it ``I am consistent" axiom} needs for corroborating its claim +for self-justification. + +This result differs from my earlier work in that it needs ZF Set Theory +(rather than Peano Arithmetic) to corroborate what I call the +Consistency Preservation Property. That is fine and legal +because the system IQFS($\beta$) +affirms its own consistency via +a 1-sentence axiom. +Thus, ZF Set Theory's knowledge about +Lebesgue measures +should, likely, +indicate IQFS($\beta$) +is a competent +enough + formalism to make no false claims. + +\newpage +My apologies that the preceeding +short summary + is not a formal proof. +It merely outlines, +{\it very roughly}, + what I have in mind. + + + +\begin{thebibliography}{99} + + + + \normalsize +\parskip 5 pt +\baselineskip = 1.3 \normalbaselineskip + + + +\bibitem{ww1} +Willard, D. E.: + ``Self-verifying systems, the incompleteness +theorem and the tangibiltiy reflection +principle'', in +{\it Journal of Symbolic Logic} +$~66~ (2001)\,$ pp. 536-596. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explaining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + +\bibitem{wwapal} +Willard, D. E.: +``A generalization of the second incompleteness +theorem and some exceptions to it''. +{\it Annals of Pure and Applied Logic} +141 (2006) +pp. 472-496. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + + + +\bibitem{ww16} +Willard, D. E.: +On how the introducing of a + new $~\theta~$ function symbol +into arithmetic's formalism is +germane +to devising axiom systems that can +appreciate fragments of their own +Hilbert consistency. +{\it +Cornell Archives arXiv Report} +1612.08071v5 + (2017). + + +\bibitem{ww20} +Willard, D. E.: +``On the Tender Line +Separating Generalizations and Boundary-Case Exceptions for the +Second Incompleteness Theorem under Semantic Tableaux +Deduction'', +a talk given +on January 7 at the LFCS 2020 conference. +Early version in +Volume 11972 of + Springer's LNCS series, and longer version sent to +Cameron and Nate. + + +\end{thebibliography} +\end{document} + diff --git a/nachlass/collected_dew_materials/nate-cam/june2020/n.aux b/nachlass/collected_dew_materials/nate-cam/june2020/n.aux new file mode 100644 index 0000000..c4add49 --- /dev/null +++ b/nachlass/collected_dew_materials/nate-cam/june2020/n.aux @@ -0,0 +1,30 @@ +\relax +\citation{ww16} +\citation{ww16} +\@writefile{toc}{\contentsline {section}{\numberline {1}Crudely Composed Notes}{1}\protected@file@percent } +\newlabel{ss1}{{1}{1}} +\citation{ww16} +\newlabel{walk1}{{1}{2}} +\newlabel{walk2}{{2}{2}} +\newlabel{walk3}{{3}{2}} +\newlabel{walk4}{{4}{2}} +\@writefile{toc}{\contentsline {subsection}{\numberline {1.1}Method A: The ``Pairing Method''}{4}\protected@file@percent } +\newlabel{tight}{{5}{4}} +\@writefile{toc}{\contentsline {subsection}{\numberline {1.2}Method B: The Almost-Stochastic Independence Method}{4}\protected@file@percent } +\newlabel{s-sum}{{6}{5}} +\newlabel{adj-prob}{{7}{5}} +\@writefile{toc}{\contentsline {subsection}{\numberline {1.3}Hybridizations of Methods A and B}{5}\protected@file@percent } +\newlabel{adj-prob1}{{8}{6}} +\@writefile{toc}{\contentsline {section}{\numberline {2}Basic Strategy}{6}\protected@file@percent } +\citation{ww1} +\citation{wwapal} +\citation{ww1} +\citation{wwapal} +\bibcite{ww1}{1} +\citation{ww1} +\citation{wwapal} +\bibcite{wwapal}{2} +\citation{ww1} +\citation{wwapal} +\bibcite{ww16}{3} +\bibcite{ww20}{4} diff --git a/nachlass/collected_dew_materials/nate-cam/june2020/n.log b/nachlass/collected_dew_materials/nate-cam/june2020/n.log new file mode 100644 index 0000000..b061eac --- /dev/null +++ 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a/nachlass/collected_dew_materials/nate-cam/june2020/n.tex b/nachlass/collected_dew_materials/nate-cam/june2020/n.tex new file mode 100644 index 0000000..06f3dda --- /dev/null +++ b/nachlass/collected_dew_materials/nate-cam/june2020/n.tex @@ -0,0 +1,1242 @@ +% 2020 5 june 6 6.1 am ( aftr spell and subsequent corredions) + + + + +% 2017 august 30 8.5 am MINOR REVISONS PAGE 6 +%%Removing rphraisng skinny as Robert recomeneded + + + +% vladimir mechanic 265-2212 + +% ``%ss% = sections seth recommendedI skip + +%\documentclass[11pt]{article} +%\documentclass[10pt]{article} +% \documentclass[11pt]{article} +\documentclass[12pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + +\addtolength{\oddsidemargin}{-1.1in} +\setlength{\textheight}{9.4 in} +\setlength{\textwidth}{6.5 in} +%%%% above paper + +%\setlength{\textwidth}{6,0 in} +%\setlength{\textwidth}{5,5 in} + +\addtolength{\topmargin}{-0.75in} + + +%% +%% \addtolength{\oddsidemargin}{-0.5 in} +%% \setlength{\textheight}{10.1 in} +%% \setlength{\textwidth}{7.5 in} +%% \addtolength{\topmargin}{-0.5in} + + + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{dff}[theorem]{$~~~~$ Definition} +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} +\newtheorem{ccr}[theorem]{$~~~~$Corrolary} +\newtheorem{coj}[theorem]{$~~~~$Conjecture} + + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\nop{ } +\def\nyp{\newpage } +% \def\nxp{ } +\def\nxp{ Here $~$NXP } + + +% \def\nyp{ } +% \def\nyp{ } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{Fact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\cjx}[1]{Conjecture \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + +%\title{Rough Summary of March 2012 Research Before I Attended +%the AMS March 17-18 Conference} + + +%% \title{ On +%% How the Revival of a Diluted +%% Version of +%% Hilbert's Consistency Program +%% %is +%% Should +%% Likely +%% Be +%% % Plausible and +%% % Veru +%% Germane +%% to Computer Science} + + +\title{$Very~~ Very~$ +Informal Notes for Cameron and Nate from Dan} + + +%% \title{On How +%% A Novel Indeterminately Defined +%% %$~\theta~ \gimel$ +%% Function Primitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + +%% +%% \title{On How +%% An Indeterminately Defined +%% $~\theta~ \gimel$ Function Prmitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + + + + + + + +%%% + + +%X%% \title{On How the +%X%% Ixntroducing of a +%X%% New $~\theta~$ Function Symbol +%X%% Into Arithmetic's Formalism Is +%X%% %Likely +%X%% Germane +%X%% to Devising Axiom Systems that Can +%X%% Appreciate Fragments of Their Own +%X%% Hilbert Consistency} + +%% \title{Why a Small Fragment of Hilbert's Consistency Program +%% Ought to Be Feasible +%% for Hilbert-like Deductive Methods +%% After A New $~\theta~$ Function Primitive +%% %AFTER A NEW ``$~\theta~$'' Function Primitive +%% Is Added to Arithmetic's Formalism} +%% + +%% \title{ A 2-Part Conjecture about +%% How a Much-Diluted but Non-Trivial +%% %Variant +%% Fragment +%% of +%% Hilbert's Consistency Program +%% Is +%% Likely +%% %Plausible +%% Feasible +%% for the +%% % Even the Challenging +%% Case of +%% Hilbert Deduction} + + + +% +% \title{ On +% How a Much-Diluted but Non-Trivial +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Is +% Likely +% %Plausible +% Feasible +% for Even the +% Challenging +% Case of +% Hilbert Deduction} +% +% %Plausible and +% % Veru +% % Germane +% %to Computer Science} +% +% +% %%% \title{\large \bf On the Revival of a Much-Diluted +% %%% but Non-Trivial +% %%% Version of +% %%% Hilbert's Consistency Program (And Its Applications +%%% for Computer Science, Mathematics and Philosophy)} + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard } +%Email = dew@cs.albany.edu.}} +%\newline +%Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + + +\baselineskip = 1.14 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + +\begin{center} +\large +June 6, 2020 +\end{center} + +\begin{abstract} +\Large +\baselineskip = 1.65 \normalbaselineskip +These notes are written quite informally +and they are meant to summarize the types of +probability distributions that will construct +a decently +``randomly'' +formalized $\Theta$ function for my Cornell paper. This manuscript was +written in only a couple of hours time, and I therefore apologize +for many likely examples of carelessness in my QUITE INFORMAL extension +of \cite{ww16}'s results. +\end{abstract} + + + + + + + + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + +\def\ttt2c{ } +\def\tttc{ } + +\def\tttc{\tiny \baselineskip = 0.8 \normalbaselineskip \parskip 0pt } +\def\ttt2c{\tiny \baselineskip = 0.7 \normalbaselineskip \parskip 0pt } +\def\tttc{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } + +\def\tttc{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } + + +\def\tttc{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } + + +\def\tttc{ \baselineskip = 1.14 \normalbaselineskip \parskip 3pt } +\def\ttt2c{ \baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +% \newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + + +\noindent + +% +% +% NNEW COMMENT +% +% +% The pdf version of this draft is verbatim identical to August's Version 3. +% The prior draft's abstract was incorrectly broadcast by Arxiv on the +% Internet, after I pressed a wrong computer button. Thus, +% Version 4 was issued. + + +\newpage + +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ } + + +\gvs + +\footnotesize + + +\def\gvs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +%%%old + + \def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + + \def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +%% march 31 + +\def\gvs{ \Large \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \LARGE \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \large \baselineskip = 2.2 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 2.2 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 5pt} + +\def\sgvs{ \small \baselineskip = 1.33 \normalbaselineskip \parskip 1pt} +\def\tttc{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + + +\def\gvs{ } + + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + \def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 9pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 9pt} + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + +\def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 5pt} + + +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 8pt} +\def\gvs{ \Large \baselineskip = 2.5 \normalbaselineskip \parskip 8pt} + + +%fffff + + +%fffff +\def\gvs{ \normalsize \baselineskip = 1.3 \normalbaselineskip \parskip 5pt} + +\def\gvx{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \Large \baselineskip = 1.9 \normalbaselineskip \parskip 5pt} + +\section{Crudely Composed Notes} +% \section{Scientific Notes of Dan Willard Notarized on Nov 22,2016} +%%%%%%%%%% 1111111111111111} +\label{ss1} + + + + + +\gvs + +I will use the phrase ``probability distribution'' quite informally +in our discussion. The goal is thus to ``invent'' {\it any type} +of Lebesgue measure that will assure that there is a probability +bounded below by some tiny constant $~c~$ where +\cite{ww16}'s $\Theta$ function will produce a consistent self-justifying +formalism. {\it Even if that probability is tiny,} any discovered +lower bound $~c~> ~ 0 ~$, +will assure that the IQFS($\beta$) +formalism is consistent when $~\beta~$ +holds true under the Standard Model. This is + because +IQFS($\beta$)'s + Group 0, 1 and 2 axioms trivially hold true under the standard model +and its final Group-3 axiom sentence cannot be proven false +when our probability framework can generate a model +where it holds with +an explicit +probability lower bound lower bound of $~c~> ~ 0 ~$. + +(In other words since ZF Set Theory can formalize the validity of +G\"{o}del's Completeness Theorem, the existence of some model +satisfying a probability lower bound lower bound $~c~> ~ 0 ~$ +will be sufficient for establishing that +the + Group-3 axiom's +self-justification statement will not be contradicted.) + + +Please allow me to be informal here because I am trying to +quickly + compose +a rough approximation of working notes, without delving into +a bevy of +tedious details. + +Let us recall that page 11 of \cite{ww16} +defines the $\zzthe(x)$ function-mapping +%% haphazard +to be an +operation + that maps powers of 2 +onto powers of 2 +subject to the following rules: + +\vspace*{- 0.6 em} +{\parskip -6 pt +\beq +\label{walk1} +\forall ~~x~~~~~ \mbox{Power}(x) ~~~ \Rightarrow ~~ +\mbox{Power}(~ \zzthe(x)~) +\enq +\beq +\label{walk2} +\forall ~~x~~~~~ \zzthe(x)~ \neq ~ 1 +\enq +\beq +\label{walk3} +\forall ~~x~~~ \forall ~~y ~~~~[~ x ~ \neq~ y ~ +\wedge ~\mbox{Power}(x)~] + \Rightarrow ~~ +\zzthe(x)~ \neq ~\zzthe(y) +\enq +\beq +\label{walk4} +\forall ~~x~~~~~ \neg ~ ~\mbox{Power}(x)~~~~ \Rightarrow ~~~~ +\zzthe(x)~=~0 +\enq} +We want our probability + distribution to have the property +that any recursively defined function has a zero + probability of +occurring. Thus the countable set of all recursively defined functions +will also have a probability zero of occurring. BUT YET +the $\zzthe(x)$ primitive will grow at a slow enough rate +that it is incapable of producing a fatal diagonalizing contradiction, +while satisfying the crucial constraints in Lines \eq{walk1}- \eq{walk3}. + +I can immediately think of three likely ways of doing this. +{\it +It is (?) possible all three +methods will +work, +successfully.} Among the three plausible methods, +Method A is the simplest procedure, and Method C is the most +complicated. The virtue of Method C is that it is the one that +I am most confident about, although its procedure is a complex +hybrid of methods A and B. + +All three of these +randomized +methods will first generate the value of +$ ~\zzthe(1)~$, and then calculate in chronological +oder the values of + $ ~\zzthe(2)~$, $ ~\zzthe(4)~$, $ ~\zzthe(8)~$ etc., +This chronological order is important because +once $ ~\zzthe(2^i)~$ +is assigned a values of $~2^K~$ +then all $~ j \, > \, i~$ are forbidden by rule 3 +from mapping $ ~\zzthe(2^j)~$ onto $~2^K~$. +This Rule 3 will be called the {\bf Exclusion Principle} +during our discussion of Methods A-C below: + + +\subsection{Method A: The ``Pairing Method''} + +The Pairing method will begin by finding the two smallest +powers of 2, +at least as large as 2, where no $ j 4$ +(or more) + under all +natural encodings of proofs +(including the examples given in +\cite{ww1,wwapal}). + But the point +is that our formalism +{\it has only the} $\Theta$ operation as +a primitive, +for + representing growth. +Thus, the natural probability +distributions from the prior section should establish something +to the effect that there is a +probability lower +bound +of + $c > 0$, +such that an +excessively fast + growth-rate will be impossible. + +Thus leaving aside many +messy details, this lower bound will assure that there is stochastic +model where growth is precluded at a fast enough rate for some +demonstrated model to form the type of counterexample +that G\"{o}del's Completeness Theorem needs to show that the + {\it ``I am consistent" axiom} needs for corroborating its claim +for self-justification. + +This result differs from my earlier work in that it needs ZF Set Theory +(rather than Peano Arithmetic) to corroborate what I call the +Consistency Preservation Property. That is fine and legal +because the system IQFS($\beta$) +affirms its own consistency via +a 1-sentence axiom. +Thus, ZF Set Theory's knowledge about +Lebesgue measures +should, likely, +indicate IQFS($\beta$) +is a competent +enough + formalism to make no false claims. + +\newpage +My apologies that the preceeding +short summary + is not a formal proof. +It merely outlines, +{\it very roughly}, + what I have in mind. + + + +\begin{thebibliography}{99} + + + + \normalsize +\parskip 5 pt +\baselineskip = 1.3 \normalbaselineskip + + + +\bibitem{ww1} +Willard, D. E.: + ``Self-verifying systems, the incompleteness +theorem and the tangibiltiy reflection +principle'', in +{\it Journal of Symbolic Logic} +$~66~ (2001)\,$ pp. 536-596. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explaining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + +\bibitem{wwapal} +Willard, D. E.: +``A generalization of the second incompleteness +theorem and some exceptions to it''. +{\it Annals of Pure and Applied Logic} +141 (2006) +pp. 472-496. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + + + +\bibitem{ww16} +Willard, D. E.: +On how the introducing of a + new $~\theta~$ function symbol +into arithmetic's formalism is +germane +to devising axiom systems that can +appreciate fragments of their own +Hilbert consistency. +{\it +Cornell Archives arXiv Report} +1612.08071v5 + (2017). + + +\bibitem{ww20} +Willard, D. E.: +``On the Tender Line +Separating Generalizations and Boundary-Case Exceptions for the +Second Incompleteness Theorem under Semantic Tableaux +Deduction'', +a talk given +on January 7 at the LFCS 2020 conference. +Early version in +Volume 11972 of + Springer's LNCS series, and longer version sent to +Cameron and Nate. + + +\end{thebibliography} +\end{document} + diff --git a/nachlass/collected_dew_materials/nate-cam/june2020/o.tex b/nachlass/collected_dew_materials/nate-cam/june2020/o.tex new file mode 100644 index 0000000..06f3dda --- /dev/null +++ b/nachlass/collected_dew_materials/nate-cam/june2020/o.tex @@ -0,0 +1,1242 @@ +% 2020 5 june 6 6.1 am ( aftr spell and subsequent corredions) + + + + +% 2017 august 30 8.5 am MINOR REVISONS PAGE 6 +%%Removing rphraisng skinny as Robert recomeneded + + + +% vladimir mechanic 265-2212 + +% ``%ss% = sections seth recommendedI skip + +%\documentclass[11pt]{article} +%\documentclass[10pt]{article} +% \documentclass[11pt]{article} +\documentclass[12pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + +\addtolength{\oddsidemargin}{-1.1in} +\setlength{\textheight}{9.4 in} +\setlength{\textwidth}{6.5 in} +%%%% above paper + +%\setlength{\textwidth}{6,0 in} +%\setlength{\textwidth}{5,5 in} + +\addtolength{\topmargin}{-0.75in} + + +%% +%% \addtolength{\oddsidemargin}{-0.5 in} +%% \setlength{\textheight}{10.1 in} +%% \setlength{\textwidth}{7.5 in} +%% \addtolength{\topmargin}{-0.5in} + + + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{dff}[theorem]{$~~~~$ Definition} +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} +\newtheorem{ccr}[theorem]{$~~~~$Corrolary} +\newtheorem{coj}[theorem]{$~~~~$Conjecture} + + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\nop{ } +\def\nyp{\newpage } +% \def\nxp{ } +\def\nxp{ Here $~$NXP } + + +% \def\nyp{ } +% \def\nyp{ } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{Fact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\cjx}[1]{Conjecture \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + +%\title{Rough Summary of March 2012 Research Before I Attended +%the AMS March 17-18 Conference} + + +%% \title{ On +%% How the Revival of a Diluted +%% Version of +%% Hilbert's Consistency Program +%% %is +%% Should +%% Likely +%% Be +%% % Plausible and +%% % Veru +%% Germane +%% to Computer Science} + + +\title{$Very~~ Very~$ +Informal Notes for Cameron and Nate from Dan} + + +%% \title{On How +%% A Novel Indeterminately Defined +%% %$~\theta~ \gimel$ +%% Function Primitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + +%% +%% \title{On How +%% An Indeterminately Defined +%% $~\theta~ \gimel$ Function Prmitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + + + + + + + +%%% + + +%X%% \title{On How the +%X%% Ixntroducing of a +%X%% New $~\theta~$ Function Symbol +%X%% Into Arithmetic's Formalism Is +%X%% %Likely +%X%% Germane +%X%% to Devising Axiom Systems that Can +%X%% Appreciate Fragments of Their Own +%X%% Hilbert Consistency} + +%% \title{Why a Small Fragment of Hilbert's Consistency Program +%% Ought to Be Feasible +%% for Hilbert-like Deductive Methods +%% After A New $~\theta~$ Function Primitive +%% %AFTER A NEW ``$~\theta~$'' Function Primitive +%% Is Added to Arithmetic's Formalism} +%% + +%% \title{ A 2-Part Conjecture about +%% How a Much-Diluted but Non-Trivial +%% %Variant +%% Fragment +%% of +%% Hilbert's Consistency Program +%% Is +%% Likely +%% %Plausible +%% Feasible +%% for the +%% % Even the Challenging +%% Case of +%% Hilbert Deduction} + + + +% +% \title{ On +% How a Much-Diluted but Non-Trivial +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Is +% Likely +% %Plausible +% Feasible +% for Even the +% Challenging +% Case of +% Hilbert Deduction} +% +% %Plausible and +% % Veru +% % Germane +% %to Computer Science} +% +% +% %%% \title{\large \bf On the Revival of a Much-Diluted +% %%% but Non-Trivial +% %%% Version of +% %%% Hilbert's Consistency Program (And Its Applications +%%% for Computer Science, Mathematics and Philosophy)} + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard } +%Email = dew@cs.albany.edu.}} +%\newline +%Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + + +\baselineskip = 1.14 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + +\begin{center} +\large +June 6, 2020 +\end{center} + +\begin{abstract} +\Large +\baselineskip = 1.65 \normalbaselineskip +These notes are written quite informally +and they are meant to summarize the types of +probability distributions that will construct +a decently +``randomly'' +formalized $\Theta$ function for my Cornell paper. This manuscript was +written in only a couple of hours time, and I therefore apologize +for many likely examples of carelessness in my QUITE INFORMAL extension +of \cite{ww16}'s results. +\end{abstract} + + + + + + + + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + +\def\ttt2c{ } +\def\tttc{ } + +\def\tttc{\tiny \baselineskip = 0.8 \normalbaselineskip \parskip 0pt } +\def\ttt2c{\tiny \baselineskip = 0.7 \normalbaselineskip \parskip 0pt } +\def\tttc{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } + +\def\tttc{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } + + +\def\tttc{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } + + +\def\tttc{ \baselineskip = 1.14 \normalbaselineskip \parskip 3pt } +\def\ttt2c{ \baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +% \newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + + +\noindent + +% +% +% NNEW COMMENT +% +% +% The pdf version of this draft is verbatim identical to August's Version 3. +% The prior draft's abstract was incorrectly broadcast by Arxiv on the +% Internet, after I pressed a wrong computer button. Thus, +% Version 4 was issued. + + +\newpage + +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ } + + +\gvs + +\footnotesize + + +\def\gvs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +%%%old + + \def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + + \def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +%% march 31 + +\def\gvs{ \Large \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \LARGE \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \large \baselineskip = 2.2 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 2.2 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 5pt} + +\def\sgvs{ \small \baselineskip = 1.33 \normalbaselineskip \parskip 1pt} +\def\tttc{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + + +\def\gvs{ } + + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + \def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 9pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 9pt} + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + +\def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 5pt} + + +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 8pt} +\def\gvs{ \Large \baselineskip = 2.5 \normalbaselineskip \parskip 8pt} + + +%fffff + + +%fffff +\def\gvs{ \normalsize \baselineskip = 1.3 \normalbaselineskip \parskip 5pt} + +\def\gvx{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \Large \baselineskip = 1.9 \normalbaselineskip \parskip 5pt} + +\section{Crudely Composed Notes} +% \section{Scientific Notes of Dan Willard Notarized on Nov 22,2016} +%%%%%%%%%% 1111111111111111} +\label{ss1} + + + + + +\gvs + +I will use the phrase ``probability distribution'' quite informally +in our discussion. The goal is thus to ``invent'' {\it any type} +of Lebesgue measure that will assure that there is a probability +bounded below by some tiny constant $~c~$ where +\cite{ww16}'s $\Theta$ function will produce a consistent self-justifying +formalism. {\it Even if that probability is tiny,} any discovered +lower bound $~c~> ~ 0 ~$, +will assure that the IQFS($\beta$) +formalism is consistent when $~\beta~$ +holds true under the Standard Model. This is + because +IQFS($\beta$)'s + Group 0, 1 and 2 axioms trivially hold true under the standard model +and its final Group-3 axiom sentence cannot be proven false +when our probability framework can generate a model +where it holds with +an explicit +probability lower bound lower bound of $~c~> ~ 0 ~$. + +(In other words since ZF Set Theory can formalize the validity of +G\"{o}del's Completeness Theorem, the existence of some model +satisfying a probability lower bound lower bound $~c~> ~ 0 ~$ +will be sufficient for establishing that +the + Group-3 axiom's +self-justification statement will not be contradicted.) + + +Please allow me to be informal here because I am trying to +quickly + compose +a rough approximation of working notes, without delving into +a bevy of +tedious details. + +Let us recall that page 11 of \cite{ww16} +defines the $\zzthe(x)$ function-mapping +%% haphazard +to be an +operation + that maps powers of 2 +onto powers of 2 +subject to the following rules: + +\vspace*{- 0.6 em} +{\parskip -6 pt +\beq +\label{walk1} +\forall ~~x~~~~~ \mbox{Power}(x) ~~~ \Rightarrow ~~ +\mbox{Power}(~ \zzthe(x)~) +\enq +\beq +\label{walk2} +\forall ~~x~~~~~ \zzthe(x)~ \neq ~ 1 +\enq +\beq +\label{walk3} +\forall ~~x~~~ \forall ~~y ~~~~[~ x ~ \neq~ y ~ +\wedge ~\mbox{Power}(x)~] + \Rightarrow ~~ +\zzthe(x)~ \neq ~\zzthe(y) +\enq +\beq +\label{walk4} +\forall ~~x~~~~~ \neg ~ ~\mbox{Power}(x)~~~~ \Rightarrow ~~~~ +\zzthe(x)~=~0 +\enq} +We want our probability + distribution to have the property +that any recursively defined function has a zero + probability of +occurring. Thus the countable set of all recursively defined functions +will also have a probability zero of occurring. BUT YET +the $\zzthe(x)$ primitive will grow at a slow enough rate +that it is incapable of producing a fatal diagonalizing contradiction, +while satisfying the crucial constraints in Lines \eq{walk1}- \eq{walk3}. + +I can immediately think of three likely ways of doing this. +{\it +It is (?) possible all three +methods will +work, +successfully.} Among the three plausible methods, +Method A is the simplest procedure, and Method C is the most +complicated. The virtue of Method C is that it is the one that +I am most confident about, although its procedure is a complex +hybrid of methods A and B. + +All three of these +randomized +methods will first generate the value of +$ ~\zzthe(1)~$, and then calculate in chronological +oder the values of + $ ~\zzthe(2)~$, $ ~\zzthe(4)~$, $ ~\zzthe(8)~$ etc., +This chronological order is important because +once $ ~\zzthe(2^i)~$ +is assigned a values of $~2^K~$ +then all $~ j \, > \, i~$ are forbidden by rule 3 +from mapping $ ~\zzthe(2^j)~$ onto $~2^K~$. +This Rule 3 will be called the {\bf Exclusion Principle} +during our discussion of Methods A-C below: + + +\subsection{Method A: The ``Pairing Method''} + +The Pairing method will begin by finding the two smallest +powers of 2, +at least as large as 2, where no $ j 4$ +(or more) + under all +natural encodings of proofs +(including the examples given in +\cite{ww1,wwapal}). + But the point +is that our formalism +{\it has only the} $\Theta$ operation as +a primitive, +for + representing growth. +Thus, the natural probability +distributions from the prior section should establish something +to the effect that there is a +probability lower +bound +of + $c > 0$, +such that an +excessively fast + growth-rate will be impossible. + +Thus leaving aside many +messy details, this lower bound will assure that there is stochastic +model where growth is precluded at a fast enough rate for some +demonstrated model to form the type of counterexample +that G\"{o}del's Completeness Theorem needs to show that the + {\it ``I am consistent" axiom} needs for corroborating its claim +for self-justification. + +This result differs from my earlier work in that it needs ZF Set Theory +(rather than Peano Arithmetic) to corroborate what I call the +Consistency Preservation Property. That is fine and legal +because the system IQFS($\beta$) +affirms its own consistency via +a 1-sentence axiom. +Thus, ZF Set Theory's knowledge about +Lebesgue measures +should, likely, +indicate IQFS($\beta$) +is a competent +enough + formalism to make no false claims. + +\newpage +My apologies that the preceeding +short summary + is not a formal proof. +It merely outlines, +{\it very roughly}, + what I have in mind. + + + +\begin{thebibliography}{99} + + + + \normalsize +\parskip 5 pt +\baselineskip = 1.3 \normalbaselineskip + + + +\bibitem{ww1} +Willard, D. E.: + ``Self-verifying systems, the incompleteness +theorem and the tangibiltiy reflection +principle'', in +{\it Journal of Symbolic Logic} +$~66~ (2001)\,$ pp. 536-596. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explaining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + +\bibitem{wwapal} +Willard, D. E.: +``A generalization of the second incompleteness +theorem and some exceptions to it''. +{\it Annals of Pure and Applied Logic} +141 (2006) +pp. 472-496. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + + + +\bibitem{ww16} +Willard, D. E.: +On how the introducing of a + new $~\theta~$ function symbol +into arithmetic's formalism is +germane +to devising axiom systems that can +appreciate fragments of their own +Hilbert consistency. +{\it +Cornell Archives arXiv Report} +1612.08071v5 + (2017). + + +\bibitem{ww20} +Willard, D. E.: +``On the Tender Line +Separating Generalizations and Boundary-Case Exceptions for the +Second Incompleteness Theorem under Semantic Tableaux +Deduction'', +a talk given +on January 7 at the LFCS 2020 conference. +Early version in +Volume 11972 of + Springer's LNCS series, and longer version sent to +Cameron and Nate. + + +\end{thebibliography} +\end{document} + diff --git a/nachlass/collected_dew_materials/nate-cam/june2020/r.tex b/nachlass/collected_dew_materials/nate-cam/june2020/r.tex new file mode 100644 index 0000000..06f3dda --- /dev/null +++ b/nachlass/collected_dew_materials/nate-cam/june2020/r.tex @@ -0,0 +1,1242 @@ +% 2020 5 june 6 6.1 am ( aftr spell and subsequent corredions) + + + + +% 2017 august 30 8.5 am MINOR REVISONS PAGE 6 +%%Removing rphraisng skinny as Robert recomeneded + + + +% vladimir mechanic 265-2212 + +% ``%ss% = sections seth recommendedI skip + +%\documentclass[11pt]{article} +%\documentclass[10pt]{article} +% \documentclass[11pt]{article} +\documentclass[12pt]{article} + + +%%%%%%%%%% \documentstyle[11pt]{article} + + +\usepackage{amssymb} + + +\addtolength{\oddsidemargin}{-1.1in} +\setlength{\textheight}{9.4 in} +\setlength{\textwidth}{6.5 in} +%%%% above paper + +%\setlength{\textwidth}{6,0 in} +%\setlength{\textwidth}{5,5 in} + +\addtolength{\topmargin}{-0.75in} + + +%% +%% \addtolength{\oddsidemargin}{-0.5 in} +%% \setlength{\textheight}{10.1 in} +%% \setlength{\textwidth}{7.5 in} +%% \addtolength{\topmargin}{-0.5in} + + + + + + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + +\newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} +\newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + +\newtheorem{theorem}{$~~~~$ Theorem}[section] +% \newtheorem{corollary}{Corollary}[section] +%\newtheorem{fact}{Fact}[section] +\newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} +\end{tabbing}} + +\newtheorem{example}[theorem]{$~~~~$ Example} +\newtheorem{themx}[theorem]{$~~~~$ Theorem} +\newtheorem{corollary}[theorem]{$~~~~$ Corollary} +\newtheorem{lemma}[theorem]{$~~~~$ Lemma} +\newtheorem{remark}[theorem]{$~~~~$Remark} +\newtheorem{definition}[theorem]{$~~~~$Definition} +\newtheorem{fact}[theorem]{$~~~~$Fact} + + +\newtheorem{dff}[theorem]{$~~~~$ Definition} +\newtheorem{exx}[theorem]{$~~~~$ Example} +\newtheorem{lemm}[theorem]{$~~~~$ Lemma} +\newtheorem{propp}[theorem]{$~~~~$ Proposition} +\newtheorem{remm}[theorem]{$~~~~$Remark} +\newtheorem{ccr}[theorem]{$~~~~$Corrolary} +\newtheorem{coj}[theorem]{$~~~~$Conjecture} + + +\newtheorem{deff}[theorem]{$~~~~$Definition} + + + + + +% \def\Box{ QED} +\def\nop{ } +\def\nyp{\newpage } +% \def\nxp{ } +\def\nxp{ Here $~$NXP } + + +% \def\nyp{ } +% \def\nyp{ } + +\def\bigc{$\,$of the unabridged version of this paper \cite{ww12}} + +\def\nor1{Normed$\{~2^{ \zzz \theta \, )} ~$,$~\sqrt{~2^{ \zzz \theta \, )}}~\}$} + +\def\pagxx{Page ?xx?} +\def\xor2{Normed$\{ ~\sqrt{~2^{ \zzz \theta \, )}}~,~2~ \} $} +%\def\fffx{Fact \#} +\def\fffx{{\bf Fact *}} +\def\zhz{H } +%\def\fffx{Fact \#} +\def\appD{Appendix D } +\def\appxD{Appendix D} +\def\fffour{three } +\def\zazsta{ and EA-stability} + +% \def\glamb{\xi} +\def\glamb{\lambda} +\def\glamb{P} +\def\glamb{\theta} +\def\pag2{Page 2} +%% \def\zzthe{\zeta} + + +\def\glamb{\zeta} +\def\zzthe{\theta} + + + + + +\def\gggen{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )~$} +\def\gggcp{$( L^\xi , \Delta_0^\xi , B^\xi , d , G )$} +\def\peta{\sigma} +\def\zzxz{~ \sharp ( \, } +\def\zzz{~ \sharp ( ~ } +\def\zip{\sharp } +\def\mheta{\theta^\bullet} +\def\mxi{\xi^\bullet} +%\def\mbi{\bullet} +\def\mbi{\bigdot} +\def\mbi{\bigoplus} +\def\xxi{$\, \xi^* \,$} + + + + +\def\tftt{~ \frac{1}{2}~ } +\def\sss{ } + +\def\goodshit{\triangleright} +\def\bullshit{\triangleleft} +\def\foo{footnote \footnote} +\def\Uxp{\Upsilon} + +\def\f55{ \normalsize \baselineskip = 1.8 \normalbaselineskip } + + +\def\f55{ \baselineskip = 1.1 \normalbaselineskip } +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } + +\def\f55{ \baselineskip = 0.7 \normalbaselineskip } + + + +\def\bbskip{\bigskip} + + + +\def\axst{\odot} +\def\rp{ p^\theta } +\def\thsp{Theorem $ \, * \,$ } +\def\thss{Theorem $ \, *\,$'s } +\def\dexxt{\Delta} +\newcommand{\co}[1]{Corollary \ref{#1}} +\newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\cjx}[1]{Conjecture \ref{#1}} +\newcommand{\phx}[1]{Proposition \ref{#1}} + \newcommand{\dfx}[1]{Definition \ref{#1}} +\newcommand{\lem}[1]{Lemma \ref{#1}} + + + +%% \newcommand{\co}[1]{Corollary \ref{#1}} +%% \newcommand{\thx}[1]{Theorem \ref{#1}} +\newcommand{\lxem}[1]{Lemma \ref{#1}} +\newcommand{\overx}[1]{\, \overline{ {#1} } \,} + + +\newcommand{\el}[1]{Line (\ref{#1})} +\newcommand{\ex}[1]{Expression (\ref{#1})} +\newcommand{\ei}[1]{item (\ref{#1})} + +\newcommand{\eq}[1]{(\ref{#1})} +\newcommand{\ep}[1]{Equation (\ref{#1})} +\newcommand{\thetlam}{ \theta } +\newcommand{\underx}[1]{\overline{~ {#1} ~}} +\newcommand{\appaa}{$App \forall$} +\newcommand{\appee}{$App \exists$} +\newcommand{\tll}[1]{Tab$- {#1} -$List} +\newcommand{\txl}[1]{Tab$- {#1}$} +\newcommand{\tlxl}[1]{Tab$- {#1}$ } +\newcommand{\sll}[1]{Short$- {#1} -$List} +\newcommand{\axx}[1]{NS$_D^{\,k,m}( ${#1}$)$} + + +\newenvironment{proof}{{\bf Proof:}}{$\Box$} +\newenvironment{sketchproof}{{\bf Sketch of Proof:}}{$\Box$} + + +\begin{document} + +%\title{Rough Summary of March 2012 Research Before I Attended +%the AMS March 17-18 Conference} + + +%% \title{ On +%% How the Revival of a Diluted +%% Version of +%% Hilbert's Consistency Program +%% %is +%% Should +%% Likely +%% Be +%% % Plausible and +%% % Veru +%% Germane +%% to Computer Science} + + +\title{$Very~~ Very~$ +Informal Notes for Cameron and Nate from Dan} + + +%% \title{On How +%% A Novel Indeterminately Defined +%% %$~\theta~ \gimel$ +%% Function Primitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + +%% +%% \title{On How +%% An Indeterminately Defined +%% $~\theta~ \gimel$ Function Prmitive +%% Enables Some Axiom Systems +%% To +%% Appreciate Fragments of Their Own +%% Hilbert Consistency} +%% +%% + + + + + + + +%%% + + +%X%% \title{On How the +%X%% Ixntroducing of a +%X%% New $~\theta~$ Function Symbol +%X%% Into Arithmetic's Formalism Is +%X%% %Likely +%X%% Germane +%X%% to Devising Axiom Systems that Can +%X%% Appreciate Fragments of Their Own +%X%% Hilbert Consistency} + +%% \title{Why a Small Fragment of Hilbert's Consistency Program +%% Ought to Be Feasible +%% for Hilbert-like Deductive Methods +%% After A New $~\theta~$ Function Primitive +%% %AFTER A NEW ``$~\theta~$'' Function Primitive +%% Is Added to Arithmetic's Formalism} +%% + +%% \title{ A 2-Part Conjecture about +%% How a Much-Diluted but Non-Trivial +%% %Variant +%% Fragment +%% of +%% Hilbert's Consistency Program +%% Is +%% Likely +%% %Plausible +%% Feasible +%% for the +%% % Even the Challenging +%% Case of +%% Hilbert Deduction} + + + +% +% \title{ On +% How a Much-Diluted but Non-Trivial +% %Variant +% Fragment +% of +% Hilbert's Consistency Program +% Is +% Likely +% %Plausible +% Feasible +% for Even the +% Challenging +% Case of +% Hilbert Deduction} +% +% %Plausible and +% % Veru +% % Germane +% %to Computer Science} +% +% +% %%% \title{\large \bf On the Revival of a Much-Diluted +% %%% but Non-Trivial +% %%% Version of +% %%% Hilbert's Consistency Program (And Its Applications +%%% for Computer Science, Mathematics and Philosophy)} + + + + +\def\beq{\begin{equation}} +\def\enq{\end{equation}} + +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} + + +\def\bec{\begin{corollary}} +\def\enc{\end{corollary}} + +\def\bed{\begin{description}} +\def\ennd{\end{description}} +\def\bee{\begin{enumerate}} +\def\ene{\end{enumerate}} + + +\def\bxbxd{\begin{definition}} +\def\bxbxdd{\begin{definition}} +\def\eedd{\end{definition}} +\def\bxbxdr{\begin{definition} \rm} +\def\bel{\begin{lemma}} +\def\enl{\end{lemma}} +\def\ent{\end{theorem}} + + + +\author{ Dan E.Willard } +%Email = dew@cs.albany.edu.}} +%\newline +%Email = dan.willard.albany@gmail.com}} + + + + + + + + + + + +%%%\date{Copyright 2012 by Dan E. Willard} + +\date{State University of New York at Albany} + +\maketitle + +\setcounter{page}{0} +\thispagestyle{empty} + +\normalsize + + + + +\baselineskip = 1.3\normalbaselineskip + + + +\normalsize + + +\baselineskip = 1.0 \normalbaselineskip +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + + +%%\baselineskip = 1.0 \normalbaselineskip +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\large \baselineskip = 1.6 \normalbaselineskip } +%%\def\bbint{\normalsize \baselineskip = 1.3 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.27 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } + + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.95 \normalbaselineskip } + + + +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } + +\def\bbint{\normalsize \baselineskip = 1.7 \normalbaselineskip } + +\def\bbint{\large \baselineskip = 2.3 \normalbaselineskip } +\def\bbinm{ \baselineskip = 1.18 \normalbaselineskip } + + +\def\bbint{\large \baselineskip = 2.0 \normalbaselineskip } +\def\bbing{ } +\def\bbins{ } +\def\bbinm{ } +\def\bbinr{ } + + +\def\bbint{\normalsize \baselineskip = 1.25 \normalbaselineskip } +\def\bbina{\normalsize \baselineskip = 1.24 \normalbaselineskip } +\def\bbinr{ \baselineskip = 1.3 \normalbaselineskip } +\def\bbing{ \baselineskip = 1.28 \normalbaselineskip } +\def\bbins{ \baselineskip = 1.21 \normalbaselineskip } +\def\bbinm{ } + +\def\ftl{ \baselineskip = 1.5 \normalbaselineskip } + + +\bbint + +\parskip 5 pt + + + + +\noindent + + + + + +\small + + +\baselineskip = 1.14 \normalbaselineskip + + + +\parskip 5pt + +\baselineskip = 1.2 \normalbaselineskip + +%\setcounter{page}{0} + + + +%%%%%%{\small + + + + + + + + +\large +\normalsize + + \baselineskip = 1.2 \normalbaselineskip + +%mmmmmmmmmmmmm + +\begin{center} +\large +June 6, 2020 +\end{center} + +\begin{abstract} +\Large +\baselineskip = 1.65 \normalbaselineskip +These notes are written quite informally +and they are meant to summarize the types of +probability distributions that will construct +a decently +``randomly'' +formalized $\Theta$ function for my Cornell paper. This manuscript was +written in only a couple of hours time, and I therefore apologize +for many likely examples of carelessness in my QUITE INFORMAL extension +of \cite{ww16}'s results. +\end{abstract} + + + + + + + + + +\def\ww22{\normalsize \baselineskip = 1.21\normalbaselineskip \parskip 4 pt} +\def\bb22{\normalsize \baselineskip = 1.19\normalbaselineskip \parskip 4 pt} +\def\zz22z{\normalsize \baselineskip = 1.19 \normalbaselineskip \parskip 3 pt} +\def\xx22{\normalsize \baselineskip = 1.17\normalbaselineskip \parskip 4 pt} +\def\vx22s{\normalsize \baselineskip = 1.16 \normalbaselineskip \parskip 3 pt} +\def\vv22{\normalsize \baselineskip = 1.17 \normalbaselineskip \parskip 3 pt} +\def\aa22{\normalsize \baselineskip = 1.15 \normalbaselineskip \parskip 3 pt} +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + + + + + + + + + + + +\vspace*{- 1.0 em} + + +\def\waw11{\normalsize \baselineskip = 1.72\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} +\def\waw11{\normalsize \baselineskip = 1.85\normalbaselineskip} + + + +\def\waw11{\normalsize \baselineskip = 1.45\normalbaselineskip} + + +\def\waw11{\normalsize \baselineskip = 1.7\normalbaselineskip} + +\def\waw11{\normalsize \baselineskip = 1.12\normalbaselineskip} + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.5 \normalbaselineskip } + + +\def\g55{ \baselineskip = 1.50 \normalbaselineskip } +\def\s55{ \baselineskip = 1.50 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\aa22{\normalsize \waw11 \parskip 6 pt} +\def\bb22{\normalsize \waw11 \parskip 5 pt} +\def\ww22{\normalsize \waw11 \parskip 4 pt} +\def\vv22{\normalsize \waw11 \parskip 3 pt} +\def\tt22{\normalsize \waw11 \parskip 2 pt} + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\b55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 0.9 \normalbaselineskip } + + + + + + +\def\mal{ \bf } +\def\nal{\mathcal} + +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + +\def\ttt2c{ } +\def\tttc{ } + +\def\tttc{\tiny \baselineskip = 0.8 \normalbaselineskip \parskip 0pt } +\def\ttt2c{\tiny \baselineskip = 0.7 \normalbaselineskip \parskip 0pt } +\def\tttc{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 2.1 \normalbaselineskip \parskip 5pt } + +\def\tttc{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } +\def\ttt2c{ \baselineskip = 1.15 \normalbaselineskip \parskip 5pt } + + +\def\tttc{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ \baselineskip = 1.12 \normalbaselineskip \parskip 4pt } + + +\def\tttc{ \baselineskip = 1.14 \normalbaselineskip \parskip 3pt } +\def\ttt2c{ \baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\cvt{ \baselineskip = 0.98 \normalbaselineskip } +\def\cv9{ \baselineskip = 0.99 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.0 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.03 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.00 \normalbaselineskip } + + +\def\cvt{ \baselineskip = 1.6 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.6 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.6 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.6 \normalbaselineskip \parskip 3pt } + + + + +\def\cvt{ \baselineskip = 1.22 \normalbaselineskip } +\def\cv9{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvs{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvl{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvh{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvg{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvb{ \baselineskip = 1.22 \normalbaselineskip } +\def\cvnew{ \baselineskip = 1.4 \normalbaselineskip } +\def\cvmew{ \baselineskip = 1.35 \normalbaselineskip } +\def\cvwew{ \baselineskip = 1.4 \normalbaselineskip \parskip 5pt } +\def\cvrew{ \baselineskip = 1.22 \normalbaselineskip \parskip 3pt } + + +\def\cvt{ } +\def\cv9{ } +\def\cvs{ } +\def\cvl{ } +\def\cvh{ } +\def\cvg{ } +\def\cvb{ } +\def\cvnew{ } +\def\cvmew{ } +\def\cvwew{ } +\def\cvrew{ } + + + +\def\fend{ + +\medskip -------------------------------------------------------} + + +\def\g55{ \baselineskip = 1.0 \normalbaselineskip } +\def\s55{ \baselineskip = 1.0 \normalbaselineskip } +\def\sm55{ \baselineskip = 1.0 \normalbaselineskip } +\def\h55{ \baselineskip = 1.08 \normalbaselineskip } +\def\b55{ \baselineskip = 1.1 \normalbaselineskip } + +\normalsize + +\baselineskip = 1.85 \normalbaselineskip + + + +%% Sleepy + +%\cvlpm %% Sleepy +%\cvnew + + +%\small + +%\parskip 0p + +\parskip 2pt + +\vspace*{- 1.0 em} + +% \newpage + +%\large + +%\setcounter{page}{0} +\baselineskip = 1.04 \normalbaselineskip +\parskip 2pt + +\baselineskip = 0.96 \normalbaselineskip +%\baselineskip = 0.90 \normalbaselineskip + +%\parskip 1pt +% +\baselineskip = 2.16 \normalbaselineskip +\baselineskip = 2.3 \normalbaselineskip + +\baselineskip = 0.95 \normalbaselineskip +%\baselineskip = 0.95 \normalbaselineskip +\baselineskip = 0.88 \normalbaselineskip +\parskip 0pt + + + +\noindent + +% +% +% NNEW COMMENT +% +% +% The pdf version of this draft is verbatim identical to August's Version 3. +% The prior draft's abstract was incorrectly broadcast by Arxiv on the +% Internet, after I pressed a wrong computer button. Thus, +% Version 4 was issued. + + +\newpage + +\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt}\def\gvs{ \normalsize \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \baselineskip = 1.74 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 1.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.44 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.04 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.64 \normalbaselineskip \parskip 5pt} +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ } + + +\gvs + +\footnotesize + + +\def\gvs{ } + + +\normalsize \baselineskip = 0.98 \normalbaselineskip +\normalsize \baselineskip = 1.0 \normalbaselineskip +\normalsize \baselineskip = 1.01 \normalbaselineskip + + +\def\gvs{ \normalsize \baselineskip = 1.25 \normalbaselineskip \parskip 4pt} + +% \def\gvs{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 5pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 6pt} + +%\def\gvs{ \large \baselineskip = 1.5 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \Large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} +\def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 3pt} + +% \def\gvs{ \large \baselineskip = 1.8 \normalbaselineskip \parskip 6pt} + +% \def\gvs{ \normalsize \baselineskip = 1.65 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \large \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 6pt} + +%%%old + + \def\gvs{ \normalsize \baselineskip = 1.227 \normalbaselineskip \parskip 3pt} + + \def\gvs{ \large \baselineskip = 1.6 \normalbaselineskip \parskip 5pt} +%% march 31 + +\def\gvs{ \Large \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \LARGE \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \Large \baselineskip = 2.0 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \large \baselineskip = 2.2 \normalbaselineskip \parskip 5pt} + +\def\gvs{ \normalsize \baselineskip = 2.4 \normalbaselineskip \parskip 6pt} + +\def\gvs{ \normalsize \baselineskip = 2.6 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 2.2 \normalbaselineskip \parskip 6pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 5pt} +% \def\gvs{ \normalsize \baselineskip = 1.5 \normalbaselineskip \parskip 5pt} + +\def\sgvs{ \small \baselineskip = 1.33 \normalbaselineskip \parskip 1pt} +\def\tttc{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } +\def\ttt2c{ } +%\baselineskip = 1.14 \normalbaselineskip \parskip 4pt } + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + + +\def\gvs{ } + + +\def\gvs{ \normalsize \baselineskip = 2.1 \normalbaselineskip \parskip 7pt} +\def\gvs{ \normalsize \baselineskip = 1.8 \normalbaselineskip \parskip 7pt} + +%\def\gvs{ \normalsize \baselineskip = 1.4 \normalbaselineskip \parskip 5pt} + + \def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 9pt} +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 9pt} + +\def\gv2{ \normalsize \baselineskip = 1.30 \normalbaselineskip \parskip 3pt} + + +\def\gvs{ \large \baselineskip = 1.7 \normalbaselineskip \parskip 5pt} + + +\def\gvs{ \normalsize \baselineskip = 2.0 \normalbaselineskip \parskip 8pt} +\def\gvs{ \Large \baselineskip = 2.5 \normalbaselineskip \parskip 8pt} + + +%fffff + + +%fffff +\def\gvs{ \normalsize \baselineskip = 1.3 \normalbaselineskip \parskip 5pt} + +\def\gvx{ \normalsize \baselineskip = 1.23 \normalbaselineskip \parskip 3pt} + +\def\gvs{ \Large \baselineskip = 1.9 \normalbaselineskip \parskip 5pt} + +\section{Crudely Composed Notes} +% \section{Scientific Notes of Dan Willard Notarized on Nov 22,2016} +%%%%%%%%%% 1111111111111111} +\label{ss1} + + + + + +\gvs + +I will use the phrase ``probability distribution'' quite informally +in our discussion. The goal is thus to ``invent'' {\it any type} +of Lebesgue measure that will assure that there is a probability +bounded below by some tiny constant $~c~$ where +\cite{ww16}'s $\Theta$ function will produce a consistent self-justifying +formalism. {\it Even if that probability is tiny,} any discovered +lower bound $~c~> ~ 0 ~$, +will assure that the IQFS($\beta$) +formalism is consistent when $~\beta~$ +holds true under the Standard Model. This is + because +IQFS($\beta$)'s + Group 0, 1 and 2 axioms trivially hold true under the standard model +and its final Group-3 axiom sentence cannot be proven false +when our probability framework can generate a model +where it holds with +an explicit +probability lower bound lower bound of $~c~> ~ 0 ~$. + +(In other words since ZF Set Theory can formalize the validity of +G\"{o}del's Completeness Theorem, the existence of some model +satisfying a probability lower bound lower bound $~c~> ~ 0 ~$ +will be sufficient for establishing that +the + Group-3 axiom's +self-justification statement will not be contradicted.) + + +Please allow me to be informal here because I am trying to +quickly + compose +a rough approximation of working notes, without delving into +a bevy of +tedious details. + +Let us recall that page 11 of \cite{ww16} +defines the $\zzthe(x)$ function-mapping +%% haphazard +to be an +operation + that maps powers of 2 +onto powers of 2 +subject to the following rules: + +\vspace*{- 0.6 em} +{\parskip -6 pt +\beq +\label{walk1} +\forall ~~x~~~~~ \mbox{Power}(x) ~~~ \Rightarrow ~~ +\mbox{Power}(~ \zzthe(x)~) +\enq +\beq +\label{walk2} +\forall ~~x~~~~~ \zzthe(x)~ \neq ~ 1 +\enq +\beq +\label{walk3} +\forall ~~x~~~ \forall ~~y ~~~~[~ x ~ \neq~ y ~ +\wedge ~\mbox{Power}(x)~] + \Rightarrow ~~ +\zzthe(x)~ \neq ~\zzthe(y) +\enq +\beq +\label{walk4} +\forall ~~x~~~~~ \neg ~ ~\mbox{Power}(x)~~~~ \Rightarrow ~~~~ +\zzthe(x)~=~0 +\enq} +We want our probability + distribution to have the property +that any recursively defined function has a zero + probability of +occurring. Thus the countable set of all recursively defined functions +will also have a probability zero of occurring. BUT YET +the $\zzthe(x)$ primitive will grow at a slow enough rate +that it is incapable of producing a fatal diagonalizing contradiction, +while satisfying the crucial constraints in Lines \eq{walk1}- \eq{walk3}. + +I can immediately think of three likely ways of doing this. +{\it +It is (?) possible all three +methods will +work, +successfully.} Among the three plausible methods, +Method A is the simplest procedure, and Method C is the most +complicated. The virtue of Method C is that it is the one that +I am most confident about, although its procedure is a complex +hybrid of methods A and B. + +All three of these +randomized +methods will first generate the value of +$ ~\zzthe(1)~$, and then calculate in chronological +oder the values of + $ ~\zzthe(2)~$, $ ~\zzthe(4)~$, $ ~\zzthe(8)~$ etc., +This chronological order is important because +once $ ~\zzthe(2^i)~$ +is assigned a values of $~2^K~$ +then all $~ j \, > \, i~$ are forbidden by rule 3 +from mapping $ ~\zzthe(2^j)~$ onto $~2^K~$. +This Rule 3 will be called the {\bf Exclusion Principle} +during our discussion of Methods A-C below: + + +\subsection{Method A: The ``Pairing Method''} + +The Pairing method will begin by finding the two smallest +powers of 2, +at least as large as 2, where no $ j 4$ +(or more) + under all +natural encodings of proofs +(including the examples given in +\cite{ww1,wwapal}). + But the point +is that our formalism +{\it has only the} $\Theta$ operation as +a primitive, +for + representing growth. +Thus, the natural probability +distributions from the prior section should establish something +to the effect that there is a +probability lower +bound +of + $c > 0$, +such that an +excessively fast + growth-rate will be impossible. + +Thus leaving aside many +messy details, this lower bound will assure that there is stochastic +model where growth is precluded at a fast enough rate for some +demonstrated model to form the type of counterexample +that G\"{o}del's Completeness Theorem needs to show that the + {\it ``I am consistent" axiom} needs for corroborating its claim +for self-justification. + +This result differs from my earlier work in that it needs ZF Set Theory +(rather than Peano Arithmetic) to corroborate what I call the +Consistency Preservation Property. That is fine and legal +because the system IQFS($\beta$) +affirms its own consistency via +a 1-sentence axiom. +Thus, ZF Set Theory's knowledge about +Lebesgue measures +should, likely, +indicate IQFS($\beta$) +is a competent +enough + formalism to make no false claims. + +\newpage +My apologies that the preceeding +short summary + is not a formal proof. +It merely outlines, +{\it very roughly}, + what I have in mind. + + + +\begin{thebibliography}{99} + + + + \normalsize +\parskip 5 pt +\baselineskip = 1.3 \normalbaselineskip + + + +\bibitem{ww1} +Willard, D. E.: + ``Self-verifying systems, the incompleteness +theorem and the tangibiltiy reflection +principle'', in +{\it Journal of Symbolic Logic} +$~66~ (2001)\,$ pp. 536-596. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explaining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + +\bibitem{wwapal} +Willard, D. E.: +``A generalization of the second incompleteness +theorem and some exceptions to it''. +{\it Annals of Pure and Applied Logic} +141 (2006) +pp. 472-496. +(Unlike our later articles, \cite{ww1,wwapal} +spends some time explining how we generate +our analogs of + G\"{o}del numbers + for itemized sentences and proofs.) + + + +\bibitem{ww16} +Willard, D. E.: +On how the introducing of a + new $~\theta~$ function symbol +into arithmetic's formalism is +germane +to devising axiom systems that can +appreciate fragments of their own +Hilbert consistency. +{\it +Cornell Archives arXiv Report} +1612.08071v5 + (2017). + + +\bibitem{ww20} +Willard, D. E.: +``On the Tender Line +Separating Generalizations and Boundary-Case Exceptions for the +Second Incompleteness Theorem under Semantic Tableaux +Deduction'', +a talk given +on January 7 at the LFCS 2020 conference. +Early version in +Volume 11972 of + Springer's LNCS series, and longer version sent to +Cameron and Nate. + + +\end{thebibliography} +\end{document} + diff --git a/nachlass/collected_dew_materials/old2005.pdf b/nachlass/collected_dew_materials/old2005.pdf new file mode 100644 index 0000000..216ba9e Binary files /dev/null and b/nachlass/collected_dew_materials/old2005.pdf differ diff --git a/nachlass/collected_dew_materials/pdf2012handout.pdf b/nachlass/collected_dew_materials/pdf2012handout.pdf new file mode 100644 index 0000000..0196a11 Binary files /dev/null and b/nachlass/collected_dew_materials/pdf2012handout.pdf differ diff --git a/nachlass/collected_dew_materials/referee.pdf b/nachlass/collected_dew_materials/referee.pdf new file mode 100644 index 0000000..45ecf25 Binary files /dev/null and b/nachlass/collected_dew_materials/referee.pdf differ diff --git a/nachlass/collected_dew_materials/robert.tex b/nachlass/collected_dew_materials/robert.tex new file mode 100644 index 0000000..3b4e7f2 --- /dev/null +++ b/nachlass/collected_dew_materials/robert.tex @@ -0,0 +1,318 @@ + % 2020 July 26 6.22 pm spell done + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf Talk from Daddy to Robert}, $~~~$ + July 26, 2020. This statement expresses my sentiments, and I wanted to write them down. + % explicitly, + to avoid any ambiguity. + + + % 266 + + \large + \baselineskip =1.35 \normalbaselineskip + \parskip 4 pt + + + + + + +Many people travel the World during their young 20's +(Even your father did some of that! ) + +Because it is for most people the FREE-st Time in their lives. +I understand why you are tempted to go to Turkey. + +But I will add a few notes to yesterday's talk before starting lesson + +I already promised to give you 2K for every month you decide to stay home. + +It is NOT RATIONAL to travel abroad in midst of a world-wide +epidemic --- an opinion of both your mother and me. + +You are offering to be cheap labor for a country (Turkey) that is a +cheap labor supply for Germany (and which has surplus of refugees +from the Syrian Civil-Religious War). + +Airplane Travel ``could'' be again BLOCKED between Turkey and USA. + +And while the above sentence with its word ``could'' is speculative, +IT IS NOT A SPECULATIVE POINT that most Ivy League schools will be +3/4 closed in their Fall Semesters +(If they open ???? EVEN PARTIALLY ? ) + +In contrast, I could teach you a real logic course in 3 months time, +and you could in future teach logic in philosophy departments. + +Let me close this one page note with an ADDED PERSPECTIVE. +It turns out that almost all of the +most recognized +mathematicians and logicians were also textbook writers. The +most famous textbook writer of all times was probably Euclid. + +No one knows what Euclid did besides writing a geometry textbook +that was quoted over the ages. You and I could do the same in Logic +with a Willard-and-Willard textbook..... And everyone would want +to hire you then as the field expert. + +The point is your language abilities and my math knowledge would +make this textbook FLY HIGH AND CLEAR. + + + + \end{document} + + +\newpage + +OLD TEXT + +No wife, No responsibilities, No children, No Job, No Mortgage. +Who cares if there is little money? + +Able to live cheaply in a context where few older people can +similarly do. + +Able to eat cheaply. Can of baked beans can be quite satisfying. + +JFK, for example, went to Europe before WW2 broke out and returned +from France to England LITERALLY on the EXACT day the war started. + +Many rich aristocrats did similar (e.g. FDR when he was young) + +Willing to stay in crude hostels and camp sites AND ROUGH IT. + +When I was in my mid-20's, I used to sleep in my car near beaches. +When I was 30 and had my first job, I still traveled to two California +conferences and slept in a RENTED CAR. + +I didn't travel to EUROPE via bicycle, such as the Super-RICH in their 20's +but I did take two 11-day tours with a supervised teenage group in New England +when I was 15-16 (camping in cramped hostels). + +A famous logician called Brower, who lived in Holland, used to take his +notebook and take a 90-day walk through France every summer. One year, +he lost his notebook in the middle of his walk, and then constructed +an entirely new theory, WHICH WAS HIS GREATEST LIFE-TIME ACHIEVEMENT. + +Your mother also likes wondering around (more than most women). + +The UNUSUAL ASPECT of the current time is that experts about Covid-19, +such as Dr. Faucci, are predicting the next six months will be a challenging +time, with the disease exponentially growing in size, before a vaccine is +available and MASS PRODUCED for the public to use it. + +Instead of hundreds of thousands of people dying, it is going to be possibly +Hundreds of millions and possibly LITERALLY BILLIONS of people dying. + +Also, there could be an epidemic of violence, robbery and possibly civil +war in impoverished countries.... EVEN IN USA TO LESSER EXTENT. + +The closest event to the the coming six months is the start of WW2. +Your grand-mother was on the last train from Prague to Amsterdam before +Jews were forbidden. Her cousin was on next train, watched Nazis beat her +father to death when he argued with them, and was sterilized and forced +into prostitution to survive WW2 barely. (JFK left France on EXACTLY the +day War broke out.) + +It may sound like a selfish, foolish remark from a 72-year old man, +but to go to Turkey before this 6-month wait for the Covid vaccine is +over could be a fatal mistake, similar to the Last Train from Amsterdam. + +And you, perhaps with or without me, could write a book, similar to the +Diary of Anne Frank, about your experiences during the Epidemic and +possibly coming Civil War, during the next six months. At THE VERY LEAST, +you can have your friend Kira publish it, and probably you can go to a +commercial publishing house and maybe even make it into a movie. + +You are in an unusual situation because at age age 22, you have a 72-year +old father and 61-year old mother.... And you need to think about how to +survive the next 6 months before a vaccine arrives and while riots and +horrible theft and stealing could become a second epidemic around +the World. + +Let me make a confession (say in a gentle voice): + +When I was 27, my mother was dying of cancer and I was sadly reluctant +to come home from Harvard when my grandmother lectured me about my +mother dying. + +My psychologist then subsequently reinforced her lecture by telling +me that I DID NOT WANT TO admit and RECOGNIZE how horrible events +were occurring. He told me my mother ALSO DID NOT WANT TO ADMIT the +reality, BUT SHE HAD NO CHOICE but to face it because events were happening +TOO SUDDENLY .... with her health deteriorating. + +I suspect you, as a young guy feeling your oats and seeing your world +as invulnerable, are also not admitting the reality. The good news is +that it is only a 6-month crisis lying ahead, and they are talking about +a vaccine being ready before December (although its mass manufacturing +might take 2 months longer). + +Partially because I was so young, and did not want my mother's illness +to interfere with my life in Boston and search for a job, and my search +for a wife and future mother of my children, I did not want to go home +to visit my mother. In the end after my grandmother's lecture, + I started coming home every +4-6 weeks to visit my mother during the last ten months of her life. + +The Covid Crisis is only a 6-month interlude before the vaccine becomes +prevalent. You should know that two of my best friends were diagnosed +with cancer during the last four months. (They are Lee Nagel and Jon Silver, +both of whom you know). Also two other of my firends +had died in the last 20 years, +who you don't know.) + + \baselineskip =1.5 \normalbaselineskip + +Debby (my sister) is also dying and unlikely to live 3-5 more years. + +I think I am healthy, BUT YOU SHOULD KNOW I have avoided taking a cancer +test THAT EVERYONE OVER THE AGE OF 65 is recommended to take. + +I confess I was delinquent in not taking the cancer test, and I am +unable to take it during the next week while you are getting ready to +leave. + +My grandmother took the same cancer test at age 72. They found cancer and +removed it successfully. She then lived for 17 more years and never had +cancer again. BUT I CAN'T have a cancer removed, if I have it (?), without +my family +% being +present. + +And I am not suggesting you avoid travel --- ONLY POSTPONE it until the +Covid vaccine is available. It is less certain, but a second epidemic +of riots and civil wars +and violent crimes +is also possible during the next 6 months. + +I would be happy to pay you 2K per month, if you don't trust me (?) about +allowing you to postpone your departure until the 6-month Covid waiting period +is over. (You may not want this money, BUT I AM OFFERING it to show you how +seriously I am about considering a minor postponement ( I will +put my money behind my excessively loud and cranky voice +and mouth.) + +Also, if you don't come with me to a minor 100 dollar visit to lawyer to sign +the needed documents, you might forfeit the entire Willard inheritance. +(You need to hear legal details to understand this issue.) + +Josh Silver (who is 45) is trying to persuade his father Jon to move +to Brooklyn. Jon has cancer, and Josh wants Jon to live nearby Josh +in Brooklyn. (I am not even asking you to necessarily live at 14 Grafton +Road during the most troubling crisis since WW2. BUT to be prudently +cautious..., for you to at least consider postpone going quickly abroad +during + this +dangerous +6-month period ! ) + +\newpage + +{\bf Added Comments:} + +Doctors have recently speculated that even +young children + who do not +come with Covid symptons can possibly experience brain damage +and other harm to their body. + +Don't forget to talk about NP. (Good guessing is the subtle cure point) + +Talk about Brower. + +Jon Silver predicted that instead of you spending 90 minutes in church, +you would go for the entire wedding PLUS MORE because you can't say no +to your mother (who will persuade you to stay longer). + + +\end{document} + + + diff --git a/nachlass/collected_dew_materials/sep10,2020/#n.tex# b/nachlass/collected_dew_materials/sep10,2020/#n.tex# new file mode 100644 index 0000000..e7042a1 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/#n.tex# @@ -0,0 +1,186 @@ +sparsk% 2020 september 10 1.20 pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 4 pt +\footnotesize + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must rise +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/1pm b/nachlass/collected_dew_materials/sep10,2020/1pm new file mode 100644 index 0000000..013f950 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/1pm @@ -0,0 +1,186 @@ +% 2020 september 10 1.1pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 4 pt + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must left itself +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/done b/nachlass/collected_dew_materials/sep10,2020/done new file mode 100644 index 0000000..e036047 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/done @@ -0,0 +1,187 @@ +% 2020 september 10 1.25 pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 0 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 0 pt +\footnotesize + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must rise +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/done-sep10 b/nachlass/collected_dew_materials/sep10,2020/done-sep10 new file mode 100644 index 0000000..e036047 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/done-sep10 @@ -0,0 +1,187 @@ +% 2020 september 10 1.25 pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 0 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 0 pt +\footnotesize + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must rise +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/n.pdf b/nachlass/collected_dew_materials/sep10,2020/n.pdf new file mode 100644 index 0000000..01d5933 Binary files /dev/null and b/nachlass/collected_dew_materials/sep10,2020/n.pdf differ diff --git a/nachlass/collected_dew_materials/sep10,2020/n.tex b/nachlass/collected_dew_materials/sep10,2020/n.tex new file mode 100644 index 0000000..e036047 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/n.tex @@ -0,0 +1,187 @@ +% 2020 september 10 1.25 pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 0 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 0 pt +\footnotesize + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must rise +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/n.tex~ b/nachlass/collected_dew_materials/sep10,2020/n.tex~ new file mode 100644 index 0000000..ae1532d --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/n.tex~ @@ -0,0 +1,187 @@ +% 2020 september 10 1.20 pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 4 pt +\footnotesize + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must rise +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/o.tex b/nachlass/collected_dew_materials/sep10,2020/o.tex new file mode 100644 index 0000000..e036047 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/o.tex @@ -0,0 +1,187 @@ +% 2020 september 10 1.25 pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 0 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 0 pt +\footnotesize + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must rise +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/r.tex b/nachlass/collected_dew_materials/sep10,2020/r.tex new file mode 100644 index 0000000..e036047 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/r.tex @@ -0,0 +1,187 @@ +% 2020 september 10 1.25 pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 0 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 0 pt +\footnotesize + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must rise +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/restart b/nachlass/collected_dew_materials/sep10,2020/restart new file mode 100644 index 0000000..bb7439d --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/restart @@ -0,0 +1,139 @@ +% 2020 september 10 11.54am Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +eeeeeeeeeeeeeee + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/start b/nachlass/collected_dew_materials/sep10,2020/start new file mode 100644 index 0000000..ebeacaa --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/start @@ -0,0 +1,137 @@ +% 2020 Aug 25 3.10 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on August 25,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/v1 b/nachlass/collected_dew_materials/sep10,2020/v1 new file mode 100644 index 0000000..ae07995 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/v1 @@ -0,0 +1,162 @@ +% 2020 september 10 11.54am Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + +% \Large +% \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + +xxxxx + +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept if it is viewed as one leg of the 3-part +formalism for reviving logic, in view of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My thory cannot stand by itself because it is +too weak in isolation. Artemov's results, although nice, +suffer a different type of weakness because they replace +on unified theorem with pluarlistic schemeS method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unaccepbible +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** (as well +as in the Sacks-Goedel quotes). + + +eeeeeeeeeeeeeee + +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/v2 b/nachlass/collected_dew_materials/sep10,2020/v2 new file mode 100644 index 0000000..b62a603 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/v2 @@ -0,0 +1,182 @@ +% 2020 september 10 noon+30 Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.5in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \Large + \baselineskip =1.6 \normalbaselineskip +\parskip 4 pt + +xxxxx + +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept if it is viewed as one leg of the 3-part +formalism for reviving logic, in view of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unaccepbible +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** (as well +as in the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground it must left itself +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce. Human Beings +have used an anology of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes waht was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/v4 b/nachlass/collected_dew_materials/sep10,2020/v4 new file mode 100644 index 0000000..013f950 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/v4 @@ -0,0 +1,186 @@ +% 2020 september 10 1.1pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 4 pt + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must left itself +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/v5 b/nachlass/collected_dew_materials/sep10,2020/v5 new file mode 100644 index 0000000..5f05b07 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/v5 @@ -0,0 +1,186 @@ +% 2020 september 10 1.15 pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 5 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 4 pt + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must rise +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/sep10,2020/v7 b/nachlass/collected_dew_materials/sep10,2020/v7 new file mode 100644 index 0000000..e036047 --- /dev/null +++ b/nachlass/collected_dew_materials/sep10,2020/v7 @@ -0,0 +1,187 @@ +% 2020 september 10 1.25 pm Final Version pm after spell + +% From 2020 Aug 20 415 pm + + + % 2018 pesquera + + \documentstyle[12 pt]{article} + \addtolength{\oddsidemargin}{-1.1in} + %\addtolength{\textwidth}{1.0in} + \addtolength{\textwidth}{1.9in} + \addtolength{\topmargin}{-1.2 in} + \addtolength{\textheight}{2.0in} + %\parskip 1 pt + + \newcommand{\newthmwithin}[3]{\newtheorem{#1q}{#2}[#3] + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + + \newcommand{\newthm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\sf}{\end{#1q}}} + \newcommand{\newthmm}[3]{\newtheorem{#1q}[#2q]{#3} + \newenvironment{#1}{\begin{#1q}\rm}} + + \newtheorem{theorem}{Theorem} + %\newtheorem{theorem}{Theorem}[section] + \newtheorem{lemma}{Lemma} + \newtheorem{corollary}{Corollary} + \newtheorem{fact}{Fact}[section] + \newcommand{\makenewheading}[1]{\begin{tabbing} {\bf #1:} \end{tabbing}} + \newcommand{\set}[1]{\{ #1 \}} + + \newcommand{\cp}[1]{\mbox{\sc cap}(#1)} + \newcommand{\dem}[1]{\mbox{\sc dem}(#1)} + + %\newenvironment{proof}{{\it Proof:}} + \newenvironment{proof}{{\it Proof:}}{$\Box$} + \newenvironment{sketchproof}{{\it Sketch of Proof:}}{$\Box$} + + \newcommand{\order}[1]{$\mbox{O}\left(#1\right)$} + + \newcommand{\rootm}{\sqrt{m}} + + \newcommand{\floorz}{$ (\lfloor|Z|/2 \rfloor -1) $} + \newcommand{\mfloorz}{ (\lfloor|Z|/2 \rfloor -1)} + \newcommand{\mceilz}{ (\lceil|Z|/2 \rceil + 1)} + \newcommand{\ceilz}{$ (\lceil|Z|/2 \rceil ) $} + + \newcommand{\floor}[1]{\lfloor #1 \rfloor} + \newcommand{\lbound}[1]{$\Omega\left(#1\right)$} + + \newcommand{\mod}[1]{\left| #1 \right|} + \newcommand{\belongs}{$\in$} + + \def\bed{\begin{description}} + \def\ennd{\end{description}} + \def\bee{\begin{enumerate}} + \def\ene{\end{enumerate}} + + + \newcommand{\co}[1]{Corollary \ref{#1}} + \newcommand{\th}[1]{Theorem \ref{#1}} + \newcommand{\lem}[1]{Lemma \ref{#1}} + \newcommand{\eq}[1]{(\ref{#1})} + \newcommand{\ep}[1]{Equation (\ref{#1})} + \newcommand{\underx}[1]{\underbrace{~ {#1} ~}} + + + + + + + + + + + + \begin{document} + \thispagestyle{empty} + \large + \normalsize + % \small + \baselineskip = 1.6 \normalbaselineskip + + \parskip 0 pt + %\begin{center} + $.$ + \small + \bigskip + \noindent + {\bf NNN Notarized Scientific Notes of Dan E. Willard on September 10,2020}, $~~~$ + + + % 266 + + \Large +\normalsize +\footnotesize +\baselineskip =1.0 \normalbaselineskip + + \LARGE + \baselineskip =1.8 \normalbaselineskip +\parskip 0 pt +\footnotesize + +xxxxx +$~$ +On September 9, I listened to Artemov's Indiana talk from +4-6pm. It helped me better understand his arXiv paper, +and its relationship to my work. His Complete-Induction (CI) +is a useful concept {\it if it is viewed as one leg of the 3-part + formalism} for reviving logic +within the aftermath of Goedel's 1931 +paradox. The other two legs are my self-justifying systems +and the Pudlak-Solovay Theorem (that many of my papers +have called Result ++). + +All three of these components are necessay and needed to +interact with each other to formulate a fully comprehensive theory +of Logic. My theory cannot stand by itself because it is +TOO WEAK in isolation. Artemov's results, although nice, +suffers a different type of weakness because they replace +one unified theorem with a pluarlistic ``SCHEMES'' method, whose +multiplicity is unfortunate. Likewise,the Second Incompleteness +Theorem (whose strongest form appears in ++) is unacceptable +because it is an excessivly negative result (as indicated +by the Hilbert Godel complaints given in * and ** +together with the Sacks-Goedel quotes). + +The word `` TRIPOD '' is an excellant way of summarizing my +3-part +theory. It is well known that a camera cannot stand up +in a steady manner on planet Earth because gravity will +cause it to collapse in one direction or another. But if +it has 3 legs, gravity will cause it to stand steady +because before collapsing to the ground +the camera +must rise +up before the force of gravity causes it to become unstable. + +Likewise, the 3-legs of the ``Tripod'' theory will +form a stable configuration. It is not a perfect theory: +It will force philosophical compromises, BUT IT IS A CONFIGURATION +that can be made stable under the influnce +of gravity. Human Beings +have used an analogy of this improvised 3-leg approach +since the dawn of human thought (we conjecture). My 3-part +``Tripod'' formalizes what was done informally, since at +least the time when literacy began. + +\tiny +eeeeeeeeeeeeeee +$~~~~$ +OLD NOTES +$~~~~$ +On August 20, I reported that after I gave +Robert a class about logic (over Internet), + I developed a much refined understanding about the Propositional + Calculus version of the compactness theorem (appearing in Enderton's + textbook). Now after an August 24 class, I developed a second improved + proof of preceding, where the + ``unknown'' symbol (for when a Boolean value is unknown) is + called +``Zip'' or + ``Zippy'', and a fourth symbol is a never-employed + symbol, called ``Oops'' + Here False, True, Zippy and Oops carry + the numeral values of 0, 1, 2, and 3 in a + ``quadruple'' analog of a decimal encoding. + + + I also + want to record that I plan to telephone Peter Bloniarz tomorrow + about a glitch in New York State security that he may not know about. + It is that workers in the NYS bureaucracy are using their insecure home + computers when servicing customers via transferred telephone calls. + Since these workers have access to social security numbers, an + obvious security breach is possible. + + + I also developed after talking to Robert an improved + proof of Enderton's + A-version of the Completeness Theorem. + I don't have time to go into more details here + about any of these topics because I need to do my taxes today. + This records a continuation of my on-going research, + + \end{document} diff --git a/nachlass/collected_dew_materials/source.tex b/nachlass/collected_dew_materials/source.tex new file mode 100644 index 0000000..29b0c77 --- /dev/null +++ b/nachlass/collected_dew_materials/source.tex @@ -0,0 +1,138 @@ +1empire Health Card 890 100 573 + +pamphlet called ``Welcpme to EBD'' + + NYSHIP New York State Health Insurance Program + talk to Civil Service Office + +Empire phone 877 7 NYSHIP + +civil service phone = 518 457 5754 + +social security tel = 800 772 1213 + +NYS december 2020 to Rhannon DiMatinp + +NYS december 2020 to ???? + +civil service phone = 518 457 5754 + +CALL 9 am EXACTLY to get fastest service + +press 1 English + 2 retiree + 1 billing + 1 additional assistance about cost of health insurance +Don,t press 2 2 how make payment + 1 additional help by human + estimated wait time less than 5 minutes when call at 9am + They still ask if I requested call-back in context of 5minute wait + at time of 9.09am 9.21am. + (On dec 8, I called at 10.25am to get info about who check is payable to) + +Info: + +Who am I talking to: Misty + + Monthly Premium 568.64 +sick Leave Credit = 347.64 + +2022 medicare 170.10 + +Net = 50.90 per month + +Annual 12X above = 610.80 + + +note indicate multiple months of premiums + +balance is currently 48.36 which I want to continue. +Indicate that in my correspondence. + +always contact office the Monday after first Friday in December + +mail letter to + +New York State Department of Civil Service +Employee Benefits Division +PO Box 645 475 +Cincinatti, Ohio 45264 - 5475 (dash should be here) + +Can mail regularly or however you feel comfortable + +Don't Mail to Albany, NY + + +(Any way you wish to send it. including Express Mail) + +To Whom It May Concern + +This letter is from Dan E Willard whose empire insurace ID = +and whose billing id = +Enclosed is a check for xyz to cover all 12 months of my +2022 health insurance premiums of xyz per month. For safety sake, +please also keep in you possession my balance of 48.36 +from prior years. Sincerely Yours + +QUESTIONS 1) WHO IS CHECK PAYABLE TO???? Need to call on Tuesday? + 2) how should mail (express mail, registered mail?) + 3) Three month rule? + 4) Check amount + 5) Robert extension? +Questions + +0) Contact Retiree Unit for more details and Misty will do + that right now. Call them 9am + +1) At 65, MY wife must be enrolled Parts A and B of Medicare + +2) Always stay away from Part D Medicare + +3) When my wife is 65, ask Retiree unit how to handle it if she is not +enrolled in Medicare + +4) If i have at least one dependent, NO CHANGE in my premium + +5) Beyond 26, i can purchase extra converage for my son + until age ???? (unknown). Contact + Cobra Application for 36 month of coverages + (2022 rate = 938 per month. If cancelled cannot + be restored). + + +6) If I pass and have family coverage, NYSHIP offers 3 free months + of extended coverage to beneficiaries, but after that they receive + information about how to do their own seperate coverage. + +7) xyz is standard medicare deduction. And Misty never saw anything + different this year. + +8) Wife can enroll in Medicare without getting Social Security by + NOT taking money out of Social Security by GIVING BANK ACCOUNT + for DIRECT deductions. + +9) To find providers outside NYS, click on + empireplanproviders.com + enter zip code information + + + +i have to find out who check is payable to +abd ALSO contact social security office +or call 800 772 1213 to discover maximal +medicare payment. + + +They told me 35 days for reissuing cards in alpabetical order + +8.59 am called + +talked to Morgan in albany + +check payable to NYS Employee Insurance Pending Account + +memo should billing ID = 100 111 8610 Just number on memoline + +That number SAME EACH YEAR +xxx +