Difference between revisions of "Union (mathematics)"
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| − | In [[math]]ematics, a '''union''' of sets is a [[set]] of elements that belong only to the sets. The union of sets A and B is denoted A ∪ B and is formally defined as A ∪ B = {x|xϵA OR xϵB}. | + | In [[math]]ematics, a '''union''' of sets is a [[set]] of elements that belong only to at least one of the sets. The union of sets A and B is denoted A ∪ B and is formally defined as A ∪ B = {x|xϵA OR xϵB}. |
[[Category:Mathematics]] | [[Category:Mathematics]] | ||
Revision as of 21:27, September 2, 2008
In mathematics, a union of sets is a set of elements that belong only to at least one of the sets. The union of sets A and B is denoted A ∪ B and is formally defined as A ∪ B = {x|xϵA OR xϵB}.