∀ {C : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} C] {α : Type u_1} {Z : α → C}
  [inst_1 : CategoryTheory.Limits.HasCoproduct Z] (i : α) {Z_1 : Cᵒᵖ} (h : Opposite.op (Z i) ⟶ Z_1),
  CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.opCoproductIsoProduct Z).hom
      (CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.Pi.π (fun x => Opposite.op (Z x)) i) h) =
    CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.Sigma.ι Z i).op h