| abs(i) * abs(j) ≤ 2147483647 * 2147483647, 0 < i * j, j ≤ 2147483647, ~2147483648 ≤ j, i ≤ 2147483647, ~2147483648 ≤ i, 9223372036854775807 < i * j ⊦ |
0 < i * j, j ≤ 2147483647, ~2147483648 ≤ j, i ≤ 2147483647, ~2147483648 ≤ i, 9223372036854775807 < i * j, abs(i) * abs(j) ≤ 4611686014132420609 ⊦