fact: Definition coyoneda A : Functor A^op (A -> set_cat) := ExponentialLaws.Law4.Functors.inverse _ _ _ (hom_functor A).
imports: Category.Core Functor.Core NaturalTransformation.Core Category.Dual Functor.Dual Functor.Composition.Core Category.Morphisms FunctorCategory.Morphisms SetCategory Functor.Attributes Functor.Composition.Functorial Functor.Identity HomFunctor FunctorCategory.Core NaturalTransformation.Paths HoTT.Tactics