# Unary Set Relation

A Unary Set Relation is a Set Relation that is a Unary Relation.

**AKA:**One Set Relation, Single Set Relation.**Context:**- It can be a Total Unary Set Relation, that is defined for every Set Member.

**Example(s):**- the Empty Set Relation.

**Counter-Example(s):**- a Binary Set Relation, such as the Subset Relation.
- a N-ary Set Relation, such as the Disjoint Set Relation.
- a Unary Set Function, such as the Set Cardinality Function.

**See:**Unary String Relation.