{motive : Lean.Expr → Sort u} →
  (t : Lean.Expr) →
    ((fn arg : Lean.Expr) → motive (fn.app arg)) →
      ((binderName : Lean.Name) →
          (binderType body : Lean.Expr) →
            (binderInfo : Lean.BinderInfo) → motive (Lean.Expr.forallE binderName binderType body binderInfo)) →
        (Nat.hasNotBit 160 t.ctorIdx → motive t) → motive t