fact: Definition LocSqr1Comm {SOM : SubsetsOfMors} {x y z : ob C} {s : x --> y} {e1 : SOM x y s} {f : x --> z} (LS1 : LocSqr1 SOM s e1 f) : s · (LocSqr1Mor1 LS1) = f · (LocSqr1Mor2 LS1) := dirprod_pr2 (pr2 LS1).
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors