fact: Definition left_composition_of : (@left_morphism_of _ _ _ _ _ _ _ _ A _ _ A'' ((associator_1 _ _ _) o (T' oR DF) o (associator_2 _ _ _) o (CF' oL T) o (associator_1 _ _ _))) = (associator_2 _ _ _) o (DF' oL left_morphism_of A A' T) o (associator_1 _ _ _) o (left_morphism_of A' A'' T' oR CF) o (associator_2 _ _ _).
imports: Category.Core Functor.Core NaturalTransformation.Core Functor.Identity Functor.Composition.Core NaturalTransformation.Composition.Core NaturalTransformation.Composition.Laws NaturalTransformation.Identity NaturalTransformation.Paths Functor.Dual NaturalTransformation.Dual Adjoint.Core Adjoint.UnitCounit Adjoint.Dual Adjoint.Functorial.Parts HoTT.Tactics Basics.Tactics