In set theory, the union of a collection of sets is the set of all the elements of all the sets of the collection. It is denoted as A \cup B.

Formal DefinitionEdit

Let A be a set.

Let B be a set.

Then, the union of A and B is defined as: A \cup B = \{ x | x \in A \lor x \in B \}

See AlsoEdit

External LinksEdit

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