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On Sperner families satisfying an additional condition. (English) Zbl 0328.05002

05A05 Permutations, words, matrices
05A99 Enumerative combinatorics
Full Text: DOI
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[2] Katona, G.O.H, A theorem of finite sets, (), 187-207 · Zbl 0878.05079
[3] Kruskal, J.B, The number of simplicies in a complex, (), 251-278
[4] Lubell, D, A short proof of Sperner’s lemma, J. combinatorial theory, 1, 299, (1966) · Zbl 0151.01503
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[6] Sperner, E, Ein satz über untermengen einer endlichen menge, Math. Z., 27, 544-548, (1928) · JFM 54.0090.06
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