#18942: Weird bug in roots of a polynomial in relative number field extension
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Reporter: robharron | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.8
Component: number fields | Resolution:
Keywords: Relative number field, roots | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by pbruin):
In fact, in the above example we have
{{{
sage: K == L
True
}}}
which causes a cache lookup in `PolynomialRing` to return `K['x']` when
given `L` as input.
We should probably make number fields satisfy `K == L` if and only if `K
is L`, i.e. make them inherit from `WithEqualityById`. Doing this in the
most naive way unfortunately leads to a number of doctest failures.
--
Ticket URL: <http://trac.sagemath.org/ticket/18942#comment:2>
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