proposition: Lemma iso_stable_under_equalitytransportf {C : category} {x y z : C} {f : C⟦x,y⟧} {g : C⟦x,z⟧} {pf : y = z} (qg : g = transportf _ pf f) (Hf : is_z_isomorphism f) : is_z_isomorphism g.
proof: Proof. use (iso_stable_under_equality qg). use (iso_stable_under_transportf). exact 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