Intersection of sets

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One of the basic operations on sets. Suppose one has a finite or infinite collection of sets $\{A_\alpha\}$ (the subscript $\alpha$ serves to distinguish the elements of the given collection). Then the set of those elements that are contained in all these sets (the set of elements common to all $A_\alpha$) is called the intersection of these sets.

The intersection of these sets is denoted by $\bigcap A_\alpha$.

How to Cite This Entry:
Intersection of sets. Encyclopedia of Mathematics. URL:
This article was adapted from an original article by M.I. Voitsekhovskii (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article