{motive : Lean.Meta.Grind.Arith.CommRing.RingM.Context → Sort u} →
  ((ringId : ℕ) → (checkCoeffDvd : Bool) → motive { ringId := ringId, checkCoeffDvd := checkCoeffDvd }) →
    (t : Lean.Meta.Grind.Arith.CommRing.RingM.Context) → motive t