∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] {f g : CategoryTheory.Arrow C}
  [inst_1 : ∀ (n : ℕ), CategoryTheory.Limits.HasWidePushout f.left (fun x => f.right) fun x => f.hom]
  [inst_2 : ∀ (n : ℕ), CategoryTheory.Limits.HasWidePushout g.left (fun x => g.right) fun x => g.hom] (F : f ⟶ g),
  (CategoryTheory.Arrow.mapAugmentedCechConerve F).right = CategoryTheory.Arrow.mapCechConerve F