#18776: From poset to lattice: Do not copy Hasse Diagram
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-wishlist
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by jmantysalo):
Sorry, but I do not understand. What is "required fixed linear
extensions"?
For example there is three possible linear extension for the pentagon
poset. If I do `relabel(lambda i: chr(ord('a')+i))` to it, why I can not
use exactly same Hasse diagram, and so exactly same linear extension? Or
to say it by code, what will following break?
{{{
P=Posets.PentagonPoset()
P._elements=('a','b','c','d','e')
P._element_to_vertex_dict={'a': 0, 'b': 1, 'c': 2, 'd': 3, 'e': 4}
P._list=('a','b','c','d','e')
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/18776#comment:7>
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