#17740: Division of modules by basering elements should not pass to the fraction
field.
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Reporter: robertwb | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.5
Component: coercion | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: u/robertwb | Commit:
/coerce-div | 6a507b79f14c7db4f28ac841996cc2ef3d1ba71d
Dependencies: | Stopgaps:
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Comment (by robertwb):
Note that this behavior is not new
{{{
sage: parent(GF(5)['x']['y'].gen() / 2)
Univariate Polynomial Ring in y over Fraction Field of Univariate
Polynomial Ring in x over Finite Field of size 5
}}}
More generally, given an R-module M and an element in R0 such that R0 ->
R1 -> ... -> Rn -> R, where along this chain should the multiplicative
inverse be calculated? Maybe the first (last?) Ri that is already field?
Starts to feel a bit ad-hoc...
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Ticket URL: <http://trac.sagemath.org/ticket/17740#comment:7>
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