Compare: Partitions of a 5-element set I, the copyright holder of this work, hereby publish it under the following licenses: This file is licensed under...
4.0 Quelle = Set partitions 5; circles.svg , Autor = Benutzer Watchduck auf Commons, Lizenz = CC-by-sa 3.0 Quelle = Set partitions 4; Hasse; circles.svg...
