Talk:Family of sets

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who might need it?

Tosha 20:23, 14 Jun 2004 (UTC)

[edit] Merge?

The obvious merge target is hypergraph, which set system currently points to. Can this article be differentiated from that one enough to stand alone, or should they be merged (as Oleg has already hinted)? —David Eppstein 06:33, 26 July 2007 (UTC)

The terms "hypergraph" and "set system" are used in combinatorics, while the term "family of sets" is used in abstract set theory. They're not quite equivalent; a hypergraph should be a collection of subsets of a fixed set, and (at least according to our article) should also be nonempty. Even if they were precisely equivalent, their usages differ since they appear in different branches of mathematics. So I believe that the articles should stay separate, while still referring to one another. —Toby Bartels 22:00, 26 July 2007 (UTC)