∀ {C : Type u₁} {inst : CategoryTheory.Category.{v₁, u₁} C} {V : Type u₂} {inst_1 : CategoryTheory.Category.{v₂, u₂} V}
  {inst_2 : CategoryTheory.MonoidalCategory C} {inst_3 : CategoryTheory.MonoidalCategory V} {D : Type u₃}
  {inst_4 : CategoryTheory.Category.{v₃, u₃} D} {inst_5 : CategoryTheory.MonoidalCategoryStruct D}
  [self : CategoryTheory.MonoidalCategory.LawfulDayConvolutionMonoidalCategoryStruct C V D],
  (CategoryTheory.MonoidalCategory.LawfulDayConvolutionMonoidalCategoryStruct.ι C V D).Faithful