#17053: Add function for disjoint union and ordinal sum of posets
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-wishlist
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/add_function_for_direct_sum_of_posets|
4b35a5413d0d18e075783484ff8079034e828d51
Dependencies: | Stopgaps:
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Comment (by jmantysalo):
1-3a: Done `egrep '.{80}'` and `egrep ' $'`, corrected.
3b, 5-6) I did as you suggested. I'll unite style when doing The Grand
Poset Documentation Polishing.
4) I don't understand. If you input lattices to ordinal sum, you get
lattices.
7) Which one is logical for A.ordinal_sum(B): to have "A up and B down" or
"B up"? I don't know.
8) I'm quite sure about that. But how?
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Ticket URL: <http://trac.sagemath.org/ticket/17053#comment:26>
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