{motive : Lean.Level → Sort u} →
  (t : Lean.Level) →
    motive Lean.Level.zero →
      ((a a_1 : Lean.Level) → motive (a.max a_1)) →
        ((a : Lean.Level) → motive a.succ) → (Nat.hasNotBit 7 t.ctorIdx → motive t) → motive t