fact: Definition isLocClassSqr1 {SOM : SubsetsOfMors} (H : isLocalizingClass2 SOM) : ∏ (x y z : ob C) (s : x --> y) (e1 : SOM x y s) (f : x --> z), LocSqr1 SOM s e1 f := dirprod_pr1 H.
imports: UniMath.Foundations.PartD UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors