proposition: Lemma isasetRoofEqclass (x y : ob C) : isaset (RoofEqclass x y).
proof: Proof. apply isaset_total2. - apply isasethsubtype. - intros x0. apply isasetaprop. apply isapropiseqclass. Defined.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors