∀ {J : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} J] {C : Type u₃} [inst_1 : CategoryTheory.Category.{v₃, u₃} C]
  {F : CategoryTheory.Functor Jᵒᵖ Cᵒᵖ} (c : CategoryTheory.Limits.Cone F.unop),
  (CategoryTheory.Limits.coconeOfConeUnop c).ι = CategoryTheory.NatTrans.removeUnop c.π