#10667: Morphisms and Objects of Categories
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Reporter: SimonKing | Owner: nthiery
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.0
Component: categories | Keywords: objects
morphisms containment
Work_issues: Cope with non-unique number fields | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: #9138,
#11115, #11780
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Comment(by nthiery):
Hi Simon,
Replying to [comment:55 SimonKing]:
> Aha! I understand!
:-)
> I guess, until number fields are truly unique parents, I should add an
`__eq__` to number field hom sets, in order to not have it inherited from
`UniqueRepresentation`.
I am not very keen on having a class inherit (indirectly) from
UniqueRepresentation, and then hacking it's way around to actually not
have to implement the unique representation protocole. I'd rather only
inherit explicitly from UniqueRepresentation when I mean it.
Cheers,
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10667#comment:58>
Sage <http://www.sagemath.org>
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