#12269: coercion and conversion for absolute_field
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Reporter: mstreng | Owner: davidloeffler
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.0
Component: number fields | Keywords: coercion conversion
absolute_field number field structure relative absolute
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by mstreng):
Replying to [comment:11 lftabera]:
> Hi, I agree that the error here is that O and P should not be given a
coercion. Note that the code above does not work if P is given another
generator name. On this example I would not expect a canonical isomorphism
from O to P.
This can be fixed by making {{{O == P}}} be False by letting
{{{O.__cmp__(P)}}} compare structure maps.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12269#comment:14>
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