#13649: Implement sigma.domain() and sigma.codomain() for sigma a permutation
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Reporter: nthiery | Owner: joyner
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.6
Component: group theory | Resolution:
Keywords: beginner, aggregation | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Andrea Lazzarotto | Merged in:
Dependencies: | Stopgaps:
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Comment (by kini):
Replying to [comment:2 vbraun]:
> codomain = range of a map.
Well, in the case of elements of a symmetric group, yes, because they're
bijections, but surely this isn't true in general. In general, the range
is only a subset of the codomain, and is not necessarily equal to it. Or
am I missing something?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13649#comment:7>
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