#10065: removed bug and new methods in Poset
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Reporter: stumpc5 | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: minor | Milestone:
Component: combinatorics | Keywords: poset
Author: Christian Stump | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by chapoton):
The procedure '''is_isomorphic''' has two problems :
* one doctest is failing (see the report of the build bot). This is
related to a deprecated use of size instead of cardinality, somewhere.
Maybe we should correct this deprecated use first.
* it fails on Lattices
{{{
P=Posets.PentagonPoset()
P.is_isomorphic(P)
ValueError: The input is not a finite poset.
}}}
Maybe this can be corrected by having a method '''is_isomorphic''' for
Lattices which is inherited from Posets.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10065#comment:2>
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