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 It might be outdated or ideologically biased.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 AB, or AB; the intersection of a finite or infinite number of sets Ak is denoted by

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

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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(iii) the finite intersection of sets of the family [k.sup.[tau]] belong to [k.sup.[tau]].
Set of turning machines that conformed to all requests can be found as intersection of sets