| i = 2 * bits2int(bitsand(int2bits(i / 2), int2bits(j / 2))), i % 2 = 1, j % 2 = 1, 1 < i, 0 < bits2int(bitsand(int2bits(i / 2), int2bits(j / 2))), 0 < i, 0 ≤ i, 1 < j, 0 < j, ∀ i0, j. i→n(i0) < i→n(i) → i0 < bits2int(bitsand(int2bits(i0), int2bits(j))) ∧ 0 ≤ i0 → false ⊦ bitsand(int2bits(i / 2), int2bits(j / 2)).first |
Used simplifier rules: ⊦ (i * 2) % 2 = 0;% ⊦ i * j * j0 = (i * j) * j0;% ⊦ i * j = j * i;