∀ {C : Type u_2} [inst : CategoryTheory.Category.{u_1, u_2} C] {T : CategoryTheory.Monad C} {J : Type u_4}
  [inst_1 : CategoryTheory.Category.{u_3, u_4} J] {D : CategoryTheory.Functor J T.Algebra}
  (c : CategoryTheory.Limits.Cocone (D.comp T.forget)) (t : CategoryTheory.Limits.IsColimit c)
  [inst_2 : CategoryTheory.Limits.PreservesColimit (D.comp T.forget) T.toFunctor],
  CategoryTheory.CategoryStruct.comp (T.η.app c.pt) (CategoryTheory.Monad.ForgetCreatesColimits.lambda c t) =
    CategoryTheory.CategoryStruct.id c.pt