proposition: Lemma functor_isaset (C C' : precategory_data) (hs : has_homsets C') (hsC' : isaset C') : isaset (functor C C').
proof: Proof. change isaset with (isofhlevel 2). apply isofhleveltotal2. apply (functor_data_isaset C C' hs hsC'). intros x. apply isasetaprop. apply (isaprop_is_functor C C' hs). Qed.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.MoreFoundations.Univalence UniMath.MoreFoundations.Tactics UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.TransportMorphisms UniMath.CategoryTheory.Core.Univalence