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 Definition The set of elements which are in at least one of a given family of sets. [d] [e]
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Need disambiguation?

I think we might need a disambiguation page for "Union"; this page could be "Union (mathematics)", but there are also labo(u)r unions, trade(s) unions, "Union" as a type of state (e.g. "U.S.S.R." or "Union of South Africa"), "Union" as a synonym for the United States, especially during the Civil War, etc. Bruce M.Tindall 21:53, 4 November 2008 (UTC)

I would support a move of this article to Union (mathematics) or Union (set theory). Richard Pinch 22:10, 4 November 2008 (UTC)