{C₁ : Type u₁} →
  {C₂ : Type u₂} →
    [inst : CategoryTheory.Category.{v₁, u₁} C₁] →
      [inst_1 : CategoryTheory.Category.{v₂, u₂} C₂] →
        {W₁ : CategoryTheory.MorphismProperty C₁} →
          {W₂ : CategoryTheory.MorphismProperty C₂} →
            CategoryTheory.LocalizerMorphism W₁ W₂ → CategoryTheory.LocalizerMorphism W₁.arrow W₂.arrow