(motive : ℤ × Lean.Meta.Grind.Arith.Linear.DiseqCnstr → Sort u_1) →
  (x : ℤ × Lean.Meta.Grind.Arith.Linear.DiseqCnstr) →
    ((b : ℤ) → (c₂ : Lean.Meta.Grind.Arith.Linear.DiseqCnstr) → motive (b, c₂)) → motive x