(motive : Unit × Bool × Lean.Meta.Grind.AC.PropagateEqMap → Sort u_1) →
  (x : Unit × Bool × Lean.Meta.Grind.AC.PropagateEqMap) →
    ((fst : Unit) → (propagated : Bool) → (snd : Lean.Meta.Grind.AC.PropagateEqMap) → motive (fst, propagated, snd)) →
      motive x