#19191: LatticePoset: add is_planar()
-------------------------------------+-------------------------------------
       Reporter:  jmantysalo         |        Owner:
           Type:  enhancement        |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.9
      Component:  combinatorics      |   Resolution:
       Keywords:                     |    Merged in:
        Authors:  Jori Mäntysalo     |    Reviewers:
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  u/jmantysalo/latticeposet__add_is_planar__|  
c669ecbf2476518175f0719ba25e76cdc05f1521
   Dependencies:  #19193             |     Stopgaps:
-------------------------------------+-------------------------------------

Comment (by jmantysalo):

 Replying to [comment:3 ncohen]:
 > You should work on a copy of the integer-labelled hasse diagram. Skip
 labels whenever you can.

 True. Corrected. Thanks!

 I left this technically as needs_review, because this should be OK after
 #19193.

--
Ticket URL: <http://trac.sagemath.org/ticket/19191#comment:5>
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