proposition: Proposition catiso_catiso_inv_mor {y₁ y₂ : D} (f : y₁ --> y₂) : #F (catiso_inv_mor f) = idtoiso (catiso_catiso_inv_ob y₁) · f · idtoiso (!(catiso_catiso_inv_ob y₂)).
proof: Proof. apply functor_on_fully_faithful_inv_hom. Qed.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.Foundations.UnivalenceAxiom UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Setcategories UniMath.CategoryTheory.whiskering UniMath.CategoryTheory.Adjunctions.Core UniMath.CategoryTheory.Equivalences.Core UniMath.CategoryTheory.Equivalences.FullyFaithful