#18757: Poset catalog: Element type of BooleanLattice, IntegerCompositions and
IntegerPartitions
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Reporter: jmantysalo | Owner:
Type: defect | Status: new
Priority: minor | Milestone: sage-wishlist
Component: combinatorics | Keywords: posets
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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{{{
print type(Posets.IntegerPartitions(3)[1])
print type(Posets.IntegerCompositions(3)[1])
print type(Posets.BooleanLattice(3)[1])
}}}
says
{{{
<type 'tuple'>
<class
'sage.combinat.composition.Compositions_n_with_category.element_class'>
<type 'sage.rings.integer.Integer'>
}}}
This seems unlogical. There is a class for integer partitions just like
integer compositions. Also why don't `BooleanLattice(n)` return poset with
(sub)sets as an elements? Of course there could be parameter like
`elements='integers'` in all three.
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Ticket URL: <http://trac.sagemath.org/ticket/18757>
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