fact: Definition LocSqr1 (SOM : SubsetsOfMors) {x y z : ob C} (s : x --> y) (e1 : SOM x y s) (f : x --> z) : UU := ∑ D : (∑ (w : ob C), C⟦y, w⟧ × C⟦z, w⟧), (SOM z (pr1 D) (dirprod_pr2 (pr2 D))) × (s · (dirprod_pr1 (pr2 D)) = f · (dirprod_pr2 (pr2 D))).
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors