∀ {C : Type u_2} [inst : CategoryTheory.Category.{u_1, u_2} C] [inst_1 : CategoryTheory.Limits.HasPullbacks C] {Ω : C}
  (h : CategoryTheory.Classifier.SubobjectRepresentableBy Ω) [inst_2 : CategoryTheory.Limits.HasTerminal C],
  CategoryTheory.Mono (CategoryTheory.CategoryStruct.comp h.isoΩ₀.inv h.Ω₀.arrow)