#11350: Fraction fields should know whether they are finite or not.
-------------------------------+--------------------------------------------
Reporter: SimonKing | Owner: AlexGhitza
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.7.1
Component: algebra | Keywords: fraction field, is_finite
Work_issues: | Upstream: N/A
Reviewer: Robert Bradshaw | Author: Simon King
Merged: | Dependencies:
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Old description:
> If I am not mistaken, a fraction field of an integral domain R is finite
> if and only if R is finite. Hence, we should not have a
> `NotImplementedError` but the following:
> {{{
> sage: Frac(QQ['a','b','c']).is_finite()
> False
> }}}
New description:
If I am not mistaken, a fraction field of an integral domain R is finite
if and only if R is finite. Hence, we should not have a
`NotImplementedError` but the following:
{{{
sage: Frac(QQ['a','b','c']).is_finite()
False
}}}
Apply:
[attachment:trac11350_fractionfield_is_finite.patch]
[attachment:trac11350_docfix.patch]
--
Comment(by SimonKing):
I merged Jeroens example into my patch. So:
Apply trac11350_fractionfield_is_finite.patch trac11350_docfix.patch
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11350#comment:15>
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