∀ (B : Type u_5) [inst : CategoryTheory.Bicategory B] (C : Type u_6) [inst_1 : CategoryTheory.Bicategory C]
  {a b c d : CategoryTheory.OplaxFunctor B C} {f f' : a ⟶ b} (η : f ⟶ f') (g : b ⟶ c) (h : c ⟶ d),
  CategoryTheory.Oplax.OplaxTrans.whiskerRight η (CategoryTheory.CategoryStruct.comp g h) =
    CategoryTheory.CategoryStruct.comp (CategoryTheory.Oplax.OplaxTrans.associator f g h).inv
      (CategoryTheory.CategoryStruct.comp
        (CategoryTheory.Oplax.OplaxTrans.whiskerRight (CategoryTheory.Oplax.OplaxTrans.whiskerRight η g) h)
        (CategoryTheory.Oplax.OplaxTrans.associator f' g h).hom)