fact: Definition LocSqr2 (SOM : SubsetsOfMors) {y z w : ob C} (s : y --> w) (e1 : SOM y w s) (f : z --> w) : UU := ∑ D : (∑ (x : ob C), C⟦x, y⟧ × C⟦x, z⟧), (SOM (pr1 D) z (dirprod_pr2 (pr2 D))) × ((dirprod_pr1 (pr2 D)) · s = (dirprod_pr2 (pr2 D)) · f).
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors