fact: Definition MPMor (MP1 MP2 : MorphismPair) : UU := ∑ MPM : MPMorMors MP1 MP2, MPMorComms MPM.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.MoreFoundations.Notations UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.Limits.Zero UniMath.CategoryTheory.Limits.Opp