Timeline for Inclusion-preserving bijection between subsets of cardinality k and n-k

5 events

when toggle format	what		by	license	comment
Dec 25, 2014 at 17:35	vote	accept	Alex
Dec 25, 2014 at 17:35
Nov 28, 2014 at 17:06	history	edited	Emil Jeřábek	CC BY-SA 3.0	+explicit description
Nov 28, 2014 at 16:13	comment	added	Ira Gessel		See also Curtis Greene and Daniel J. Kleitman. Strong versions of Sperner’s theorem. J. Combinatorial Theory Ser. A, 20(1):80–88, 1976. For similar decompositions of other posets, search for "symmetric chain decomposition".
Nov 28, 2014 at 15:28	history	edited	Emil Jeřábek	CC BY-SA 3.0	+references
Nov 28, 2014 at 12:34	history	answered	Emil Jeřábek	CC BY-SA 3.0