{motive : Lean.Expr → Sort u} →
  (t : Lean.Expr) →
    ((fn arg : Lean.Expr) → motive (fn.app arg)) →
      ((data : Lean.MData) → (expr : Lean.Expr) → motive (Lean.Expr.mdata data expr)) →
        (Nat.hasNotBit 1056 t.ctorIdx → motive t) → motive t