∀ {J : Type v} [inst : CategoryTheory.Category.{u, v} J] {F : CategoryTheory.Functor J MonCat}
  {motive : (a a_1 : MonCat.Colimits.Prequotient F) → MonCat.Colimits.Relation F a a_1 → Prop} (j : J)
  (x y : ↑(F.obj j)), MonCat.Colimits.Relation.below ⋯