proposition: Lemma wfs_closed_pushouts {C : category} (w : wfs C) {x y z : C} {p : x --> y} {f : x --> z} (Po : Pushout f p) : ((wfs_L w _ _) p) -> ((wfs_L w _ _) (PushoutIn1 Po)).
proof: Proof. apply (wfs_closed_pullbacks (opp_wfs _)). Qed.
imports: UniMath.MoreFoundations.All UniMath.MoreFoundations.Tactics UniMath.CategoryTheory.Core.Prelude UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.Limits.Pullbacks UniMath.CategoryTheory.Limits.Pushouts UniMath.CategoryTheory.Limits.Coproducts UniMath.CategoryTheory.Limits.Products UniMath.CategoryTheory.Limits.Graphs.Colimits UniMath.CategoryTheory.Limits.Opp UniMath.CategoryTheory.Chains.Chains UniMath.CategoryTheory.DisplayedCats.Examples.Arrow UniMath.ModelCategories.Retract UniMath.ModelCategories.MorphismClass UniMath.ModelCategories.Lifting