## equivalence relation

A relation R on a set including elements a, b, c, which is reflexive (a R a), symmetric (a R b => b R a) and transitive (a R b R c => a R c). An equivalence relation defines an equivalence class.

See also partial equivalence relation.

Last updated: 1996-05-13

### Nearby terms:

**equivalence relation** ♦ equivalent isotropically radiated power

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