#10963: More functorial constructions
-------------------------------------+-------------------------------------
Reporter: nthiery | Owner: stumpc5
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.1
Component: categories | Resolution:
Keywords: days54 | Merged in:
Authors: Nicolas M. Thiéry | Reviewers: Simon King, Frédéric
Report Upstream: N/A | Chapoton
Branch: | Work issues:
public/ticket/10963 | Commit:
Dependencies: #11224, #8327, | 478de48553d203516cddb47e0cb89c34ccc210ee
#10193, #12895, #14516, #14722, | Stopgaps:
#13589, #14471, #15069, #15094, |
#11688, #13394, #15150, #15506 |
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Comment (by nthiery):
Replying to [comment:325 darij]:
> Also, I suspect this to be a typo:
> {{{
> + class Unital(CategoryWithAxiom):
> +
> + class SubcategoryMethods:
> +
> + @cached_method
> + def Inverse(self):
> + r"""
> + Returns the full subcategory of the unital objects of ``self``.
> +
> + EXAMPLES::
> +
> + sage: Magmas().Unital().Inverse()
> + Category of inverse unital magmas
> + sage: Monoids().Inverse()
> + Category of groups
> }}}
> Should be the full subcategory of the *inverse*, not the unital, objects
of self.
Thanks for spotting this. Fixed and pushed!
--
Ticket URL: <http://trac.sagemath.org/ticket/10963#comment:334>
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