∀ {C₁ : Type u_3} {C₂ : Type u_4} [inst : CategoryTheory.Category.{u_1, u_3} C₁]
  [inst_1 : CategoryTheory.Category.{u_2, u_4} C₂] (W₁ : CategoryTheory.MorphismProperty C₁)
  (W₂ : CategoryTheory.MorphismProperty C₂), (W₁.prod W₂).IsInvertedBy (W₁.Q.prod W₂.Q)