# Contents

## Definition

### In rings and algebras

For $A$ a ring or associative algebra, the anti-commutator of two elements $x,y \in A$ is the element

$\{x,y\} \coloneqq x y + y x \,.$

Last revised on August 1, 2018 at 08:10:03. See the history of this page for a list of all contributions to it.