∀ (motive : ℤ → ℕ → Sort u_1) (m n : ℕ) (h_1 : (m n : ℕ) → motive (Int.ofNat m) n)
  (h_2 : (m n : ℕ) → motive (Int.negSucc m) n),
  (match Int.ofNat m, n with
    | Int.ofNat m, n => h_1 m n
    | Int.negSucc m, n => h_2 m n) =
    h_1 m n