In set theory, there are two different possibilities to create set partitions. In the following, assume that we have the set $X$ given. What are the ways to partition it?
| | | | created: 2019-09-08 11:35:57 | modified: 2019-09-08 11:44:07 | by: bookofproofs | references: 
 Flachsmeyer, Jürgen: “Kombinatorik”, VEB Deutscher Verlag der Wissenschaften, 1972, Dritte Auflage