{motive : Lean.Elab.Tactic.BVDecide.Frontend.Normalize.Op → Sort u} →
  ((w : Lean.Expr) → motive (Lean.Elab.Tactic.BVDecide.Frontend.Normalize.Op.mul w)) →
    (t : Lean.Elab.Tactic.BVDecide.Frontend.Normalize.Op) → motive t