#
Homotopy Type Theory
relation > history (Rev #7)

## Definition

A **relation** over a type family $A$ indexed by a type $I$ is a predicate $R$ over the dependent product? type

$\prod_{i:I} A(i)$

A **binary relation** over types $A$ and $B$ is a predicate $\mapsto$ over the product type $A \times B$.

## See also

Revision on June 15, 2022 at 22:59:10 by
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