Introduce negated optional tag

[kwankyu]

• Returns the Tutte symmetric function of a graph G. Added references accordingly.
• refresh the branch
• work on Simon two-descent
• incorporated changes suggested by dcoudert
• incorporated changes following pycodestyle-minimal
• fix doctest (adding ...)
• Aligned documentation to columns 80 and other minor modifications
• incorporated suggested changes
• removed white space
• rectified parenthesis in documention for tutte_symmetric_function
• NotImplementedError when pow() called with modulus
• minor documentation rectifications
• fix issue 38713
• provide monomial_coefficients for polynomials and allow single argument for MPolynomialRing_base.monomial
• Improve wrapping sig_on()/sig_off(), add doctest
• src/sage_docbuild/builders.py: Actually test feature presence in '.. only'
• src/sage/rings/function_field/element.pyx: Update # needs
• sage.categories: Update # needs
• src/sage/categories/semigroups.py: Fix # needs
• src/sage/categories/triangular_kac_moody_algebras.py: Add # needs
• fix thinko
• activate linter check of E275 and clean one file
• one more little fix
• move power series to Parent
• fixing also multi power series and adding gens methods
• Expose Coxeter number and dual Coxeter number
• remove empty line + add typing annotation
• various pep8 fixes in modular folder
• suggested details
• allow ETuples as well
• add line for linter
• use cimport
• Fix build.yml
• provide monomial_coefficients for all kinds of polynomials
• Add dummy spkg-configure.m4 for _bootstrap
• Added two missing difference sets, updated URLs
• Address Highly confusing behavior of RootSystem related objects (lattices and ambient space) sagemath/sage#15325 Exhibit A
• Update src/sage/combinat/root_system/root_system.py
• Update src/sage/combinat/root_system/root_system.py
• Update src/sage/combinat/root_system/root_system.py
• Update src/sage/combinat/root_system/root_system.py
• Move SEE ALSO before EXAMPLES
• Update src/sage/combinat/root_system/root_space.py
• Update src/sage/combinat/root_system/root_space.py
• Update src/sage/combinat/root_system/ambient_space.py
• Update src/sage/combinat/root_system/root_space.py
• Update src/sage/combinat/root_system/root_space.py
• Update src/sage/combinat/root_system/ambient_space.py
• Delete trailing whitespace (W291)
• Flop the order of presentation of AmbientSpaceElement.inner_product
• src/sage/sets/image_set.py: Modularization fix (import)
• src/sage/sets/disjoint_set.pyx: Use LazyImport
• build/pkgs/sagetex/dependencies: add $(PYTHON_TOOLCHAIN)
• Fixed a space to improve appearance in docs
• src/sage/symbolic/integration: make libgiac integration optional
• fix bug in acyclic_orientations, see issue 38758
• make dict an alias of monomial_coefficients, thoroughly
• use StructureDescrption() in tests
• Deleted :
• fix syntax
• Add pdf()
• use a(b), not b.NormalSubgroups()
• use a(b), not b.NormalSubgroups()
• Fix time limitation in magma_free docstring
• Fixed a doctest to reflect the new (144,66,30)-difference family.
• Added group information to the comments about the new non-cyclic difference sets
• Added group information to the comments about the new non-cyclic difference sets
• polynomials are an algebra with basis
• PEP8
• Don't suppress FLINT abort exception
• Fix crystals latex
• Update src/sage/interfaces/magma_free.py
• Update src/sage/interfaces/magma_free.py
• make dict an alias to avoid duplicating docstrings
• replace iteritems with items in modified files
• Add a doctest
• Update changes accordingly
• Do not allow Pari 2.17 or later: see external Pari 2.17 does not work (yet)  sagemath/sage#38769.
• rpy2 (standard) cannot depend on r (optional)
• It is a TeX box
• Set explicit install name path on macOS
• src/sage/functions/orthogonal_polys.py: avoid global state in doctests
• src/sage/libs/mpmath/ext_main.pyx: disable pretty printing for a test
• src/sage/libs/mpmath/ext_main.pyx: handle ugly mpmath output
• src/sage/libs/mpmath/ext_main.pyx: fix two repr tests with clone()
• Check R in rpy2
• allow supplying a value of q for special_supersingular_curve()
• Remove r from rpy2 dependencies list
• add method orient to Graph
• add missing description of input G
• Update src/sage/interfaces/magma_free.py
• Update src/sage/interfaces/magma_free.py
• removed factorial, corrected edge_iterator
• slightly enhanced convolution of piecewise functions
• fix doc formatting
• fix typo
• using ruff to fix more E713
• activate ruff check for E713
• avoid some type comparisons in combinat
• fix docstring, fix whitespace around = and ,
• switch to nauty for generating posets
• more tests
• fix for linter
• details
• move import
• add switch for n > 16
• avoid copy of graph
• Updated SageMath version to 10.5.beta7
• Introduce negated optional tag

📝 Checklist

• The title is concise and informative.
• The description explains in detail what this PR is about.
• I have linked a relevant issue or discussion.
• I have created tests covering the changes.
• I have updated the documentation and checked the documentation preview.

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