#19573: Natural coercion from Integers(p*l) to GF(p) for prime p
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Reporter: switzel | Owner:
Type: PLEASE CHANGE | Status: new
Priority: major | Milestone: sage-6.10
Component: algebra | Keywords: coercion, rings
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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If `p` is a prime divisor of `m` there is currently no natural coercion
morphism from `Integers(m)` to `GF(p)` when `p` is a prime that divides
`m`:
{{{
sage: Integers(9).hom(GF(3))
---------------------------------------------------------------------------
TypeError [...]
}}}
I don't see why there shouldn't be: there is a natural coercion morphism
from `Integers(p)` to `GF(p)` and there is one from `Integers(m)` to
`Integers(p)`.
Also it seems like to change it would just involve changing one line of
code.
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Ticket URL: <http://trac.sagemath.org/ticket/19573>
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