fact: Definition counit_natural_transformation__of__adjunction_unit (A : AdjunctionUnit F G) : NaturalTransformation (F o G) 1.
imports: Category.Core Functor.Core NaturalTransformation.Core Adjoint.UnitCounit Adjoint.Dual Functor.Composition.Core Functor.Identity HoTT.Tactics Basics.Trunc Types.Sigma Basics.Tactics