(motive : Lean.Level.PP.Result → Lean.Level.PP.Result → Sort u_1) →
  (x x_1 : Lean.Level.PP.Result) →
    ((f : Lean.Level.PP.Result) → (Fs : List Lean.Level.PP.Result) → motive f (Lean.Level.PP.Result.maxNode Fs)) →
      ((f₁ f₂ : Lean.Level.PP.Result) → motive f₁ f₂) → motive x x_1