fact: Definition diagonal_functor' : Functor C (D -> C) := diagonal_functor o ExponentialLaws.Law1.Functors.inverse _.
imports: Category.Core Functor.Core NaturalTransformation.Core Functor.Composition.Core ExponentialLaws.Law1.Functors FunctorCategory.Core KanExtensions.Core InitialTerminalCategory.Core NatCategory Functor.Paths