Union (set theory)

Operation denoted by symbol “∪” applied on two sets; the set of all distinct elements in the collection

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Union (set theory)

Operation denoted by symbol “∪” applied on two sets; the set of all distinct elements in the collection

In set theory, the union (denoted by ∪) of a collection of sets is the set of all elements in the collection. It is one of the fundamental operations through which sets can be combined and related to each other.

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From Wikipedia

In set theory, the union (denoted by ∪) of a collection of sets is the set of all elements in the collection. It is one of the fundamental operations through which sets can be combined and related to each other. A nullary union refers to a union of zero (⁠ 0 {\displaystyle 0} ⁠) sets and it is by definition equal to the empty set. For explanation of the symbols used in this article, refer to the table of mathematical symbols.

Text: Wikipédia, CC BY-SA 4.0. · Image: Wikimedia Commons (Public domain) ·

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