fact: Definition isaset_coalgebra_homo {C : category} (F : functor C C) {X Y : coalgebra F} : isaset (coalgebra_homo F X Y).
imports: UniMath.Foundations.Propositions UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Limits.Terminal