I think that Sage documentation should contain a phrase "height of poset"
somewhere.
If P is a poset, it can be computed with P.rank()+1. (Or, maybe, P.rank()
--- which one is definition of height?)
Should there be a .height() function? Nathann Cohen said that probably,
but I should ask about it on this list. Travis Scrimshaw said "I wouldn't
think of using rank for a non-ranked poset".
So, to make a new small function or to add a note to documentation?
--
Jori Mäntysalo
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