Equivalence relation

In mathematics, an equivalence relation is a binary relation that is at the same time a reflexive relation, a symmetric relation, and a transitive relation.

As a consequence of these properties an equivalence relation provides a partition of a set into equivalence classes.

See also

• Conjugacy class
• Equipollence (geometry)
• Topological conjugacy
• Up to

External links

• Equivalence relation @ Wikipedia.org