#
Homotopy Type Theory
relation > history (changes)

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~~## Definition

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

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

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

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~~## See also

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Last revised on June 16, 2022 at 02:36:24.
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