∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] {J : Type w} [inst_1 : LinearOrder J] [inst_2 : SuccOrder J]
  {j : J} (F : CategoryTheory.Functor (↑(Set.Iic j)) C) (i : J) (hi : i < j),
  CategoryTheory.SmallObject.SuccStruct.arrowSucc F i hi =
    CategoryTheory.SmallObject.SuccStruct.arrowMap F i (Order.succ i) ⋯ ⋯