#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: doctests | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: #9138, #11115
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Comment(by SimonKing):
Replying to [comment:21 nthiery]:
> Yes it is plain wrong. We had discussed this early this Spring, and we
even both have patches fixing this (using a different syntax) :-) See
#10668.
Ouch! I completely forgot about that other ticket!
> This property only holds for full subcategories, and last time we
discussed that we were looking for a syntax specifying when a category is
a full subcategory of another one.
OK. Then I wonder what I should do here.
The purpose of this ticket is to provide containers for the morphisms and
objects of a category, and to provide an acceptable speed. It is ''not''
the purpose to refactor hom categories - because that is to be done in
#10668.
Hence, for now, I suggest that I will restrict myself on getting the tests
pass. I guess it will be possible in a couple of days, and may require to
change `HomCategory.super_categories` in the way I suggested above. But
apart from that, I will not aim at refactoring everything.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10667#comment:22>
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