j ≠ 0 ⊦ (i * j) / j = i
i ^ j0 = 0, 0 ≤ i0 + j0, 0 ≤ i0, 0 ≤ j0 ⊦ i ^ i0 = (i ^ i0 * i ^ j0) / i ^ j0, i = 0
Used terms: i ^ j0, i ^ i0