fact: Definition is_z_iso_leftwhiskering_z_iso (F : bifunctor) (a : A) {b1 b2 : B} (g : B⟦b1,b2⟧) (g_is_z_iso : is_z_isomorphism g) : is_z_isomorphism (a ⊗^{ F }_{l} g) := pr2 (functor_on_z_iso (leftwhiskering_functor F a) (g,,g_is_z_iso)).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.PrecategoryBinProduct UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Limits.BinCoproducts UniMath.CategoryTheory.Limits.Coproducts UniMath.CategoryTheory.ProductCategory