∀ {α : Type u_1} {motive : (a : Batteries.RBNode α) → (a_1 : Batteries.RBColor) → (a_2 : ℕ) → a.Balanced a_1 a_2 → Prop}
  {x : Batteries.RBNode α} {c₁ : Batteries.RBColor} {n : ℕ} {y : Batteries.RBNode α} {c₂ : Batteries.RBColor} {v : α}
  (a : x.Balanced c₁ n) (a_1 : y.Balanced c₂ n),
  Batteries.RBNode.Balanced.below a →
    motive x c₁ n a → Batteries.RBNode.Balanced.below a_1 → motive y c₂ n a_1 → Batteries.RBNode.Balanced.below ⋯