#10963: Axioms and more functorial constructions
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Reporter: nthiery | Owner: stumpc5
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.2
Component: categories | Resolution:
Keywords: days54 | Merged in:
Authors: Nicolas M. Thiéry | Reviewers: Simon King, Frédéric
Report Upstream: N/A | Chapoton
Branch: | Work issues: To be merged
public/ticket/10963-doc- | simultaneously with #15801
distributive | Commit:
Dependencies: #11224, #8327, | 96fa89eaefdbb020d748e42ab23b9a7545621a14
#10193, #12895, #14516, #14722, | Stopgaps:
#13589, #14471, #15069, #15094, |
#11688, #13394, #15150, #15506, |
#15757, #15759, #16244 |
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Comment (by SimonKing):
I find some comments in `category_with_axiom.py` hard to understand.
{{{
else:
# The following fails with Modules(QQ), as the later returns
# VectorSpaces(QQ) which is not an instance of the
# base_category_class of ModulesWithBasis
# return cls(base_category_class(*args, **options))
return base_category_class(*args,
**options)._with_axiom(axiom)
}}}
What is the relation with `Modules`? After all, neither `Modules` nor
`VectorSpaces` are subclasses of `CategoryWithAxiom`.
--
Ticket URL: <http://trac.sagemath.org/ticket/10963#comment:740>
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