proposition: Lemma iso_stable_under_transportf {C : category} {x y z : C} {f : C⟦x,y⟧} (pf : y=z) (Hf : is_z_isomorphism f) : is_z_isomorphism (transportf _ pf f).
proof: Proof. induction pf. use Hf. Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.whiskering UniMath.CategoryTheory.Monoidal.WhiskeredBifunctors UniMath.CategoryTheory.Monoidal.Categories UniMath.CategoryTheory.Monoidal.Structure.Symmetric