Intersection of Sets

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Intersection of Sets

the set of elements belonging simultaneously to all sets under consideration. The intersection of the sets A and B is denoted by A∩ B, or AB; the intersection of a finite or infinite number of sets A_k is denoted by

An intersection can be empty, that is, entirely without elements.

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