#19435: Poset documentation polishing: New posets from old ones
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-7.2
Component: documentation | Resolution:
Keywords: | Merged in:
Authors: Jori Mäntysalo | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/poset_documentation_polishing__new_posets_from_old_ones|
41e3a4b15d9e38f74cf865afd04a3b79d1fa38ce
Dependencies: | Stopgaps:
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Comment (by kdilks):
* Potential issue with the example in {{{connected_components()}}} giving
the covering relations of the first connected component, since
{{{cover_relations()}}} returns an ordered list, but strictly speaking is
an unordered set. Not really an issue, since I imagine the code will
always return it in the order given, but it's something to think about.
* When talking about dual/ordinal sum of a lattice (resp join-/meet-
semilattices), the documentation appears to use 'lattice' etc. as
adjectives (ie, 'the dual of a lattice is lattice'). All of those should
be like 'the dual of a lattice is a lattice'.
* I'm not happy about the definition of Dedekind-Macneille completion
being vague about the concept of 'smallest' and not being explicit about
the original poset being an induced subposet of the lattice, but I suppose
it matches what Wikipedia has, and does link to the full Wikipedia
article.
--
Ticket URL: <http://trac.sagemath.org/ticket/19435#comment:3>
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