∀ {J : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} J] {C : Type u} [inst_1 : CategoryTheory.Category.{v, u} C]
  {F : CategoryTheory.Functor J C} [inst_2 : CategoryTheory.Limits.HasLimit F] (t : CategoryTheory.Limits.LimitCone F)
  (j : J),
  CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.limit.isoLimitCone t).inv
      (CategoryTheory.Limits.limit.π F j) =
    t.cone.π.app j