# Category:Examples of Relations

This category contains examples of Relation.

Let $S \times T$ be the cartesian product of two sets or classes $S$ and $T$.

A relation on $S \times T$ is an ordered triple:

$\mathcal R = \tuple {S, T, R}$

where $R \subseteq S \times T$ is a subset.

## Subcategories

This category has the following 2 subcategories, out of 2 total.