∀ (motive : (a b : Ordinal.{u_1}) → (∃ n, a = ↑n) → (∃ n, b = ↑n) → a < Ordinal.omega0 → b < Ordinal.omega0 → Prop)
  (a b : Ordinal.{u_1}) (x : ∃ n, a = ↑n) (x_1 : ∃ n, b = ↑n) (ha : a < Ordinal.omega0) (hb : b < Ordinal.omega0),
  (∀ (m n : ℕ) (ha : ↑m < Ordinal.omega0) (hb : ↑n < Ordinal.omega0), motive ↑m ↑n ⋯ ⋯ ha hb) → motive a b x x_1 ha hb