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From Encyclopedia of Mathematics
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of three elements $a,b,c$ of a ring $R$

The element equal to

$$(ab)c-a(bc).$$

It is denoted by $(a,b,c)$.

How to Cite This Entry:
Associator. Encyclopedia of Mathematics. URL: http://www.encyclopediaofmath.org/index.php?title=Associator&oldid=31482
This article was adapted from an original article by K.A. Zhevlakov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article