The category of types with binary relations as morphisms.

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def CategoryTheory.RelCat : Type (u+1)

A type synonym for Type, which carries the category instance for which morphisms are binary relations.

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• CategoryTheory.RelCat = Type u

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instance CategoryTheory.RelCat.inhabited : Inhabited CategoryTheory.RelCat

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• CategoryTheory.RelCat.inhabited = id inferInstance

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instance CategoryTheory.rel : CategoryTheory.LargeCategory CategoryTheory.RelCat

The category of types with binary relations as morphisms.

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• CategoryTheory.rel = CategoryTheory.Category.mk