#20261: Coercion of 0 in cyclotomic field fails
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Reporter: fstromberg | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.2
Component: coercion | Resolution:
Keywords: cyclotomic | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by vdelecroix):
You might also want to fix more general conversions
{{{
sage: K6(K12.one())
1
sage: K6(K12.gen()**2)
zeta6
sage: K6(K12.one() + K12.gen()**2)
# BOOM
}}}
When there is an embedding `K1 -> K2` the conversions from `K2` to `K1` is
unambiguous.
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Ticket URL: <http://trac.sagemath.org/ticket/20261#comment:3>
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