#11900: Serious regression caused by #9138
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Reporter: SimonKing | Owner: tbd
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.7.3
Component: performance | Keywords: categories regression
Work_issues: fix doctests | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: #9138 #11911
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Comment(by nthiery):
Replying to [comment:56 SimonKing]:
> One question: Would you agree that a category with a base ring (such
that modules over the integers, having the integers as base ring) can
never be a super-category of a category without a base (such as the
category of commutative rings)?
Roughly speaking yes; in any cases, that's currently true AFAIK. However,
we might want to someday model the fact that any ring is a ZZ-module (or
maybe not).
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11900#comment:57>
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