fact: Definition ooextendable_homotopy {A B : Type} (C : B -> Type) (f : A -> B) (h k : forall b, C b) : ooExtendableAlong f C -> ooExtendableAlong f (fun b => h b = k b).
imports: HoTT.Basics HoTT.Types Equiv.PathSplit PathAny Cubical.DPath Cubical.DPathSquare Colimits.Coeq Colimits.MappingCylinder