| 0 ≤ 8 ∧ 0 ≤ i0, # int2bits(i) / 8 = i→n(i0), 1 + (i→n(8) * i→n(i0) - 1) < # int2bits(i), i < 2 ^ (n→i(n) * 8 - 1), n→i(n) ≤ i0, i→n(8) * i→n(i0) ≤ i→n(i0) * 8, 0 < i0, # int2bits(i) ≤ 1 + i→n(i0) * 8, 0 < i ⊦ n = 0, i0 = 0, i = 0, # int2bits(i) % 8 = 0 |
# int2bits(i) / 8 = i→n(i0), 1 + (i→n(i0) * 8 - 1) < # int2bits(i), 0 < i, # int2bits(i) ≤ 1 + i→n(i0) * 8, 0 < i0, n→i(n) ≤ i0, i < 2 ^ (n→i(n) * 8 - 1), i→n(i0) * 8 - 1 < i→n(i0) * 8 ⊦ # int2bits(i) % 8 = 0, i = 0, i0 = 0, n = 0
Used simplifier rules: ⊦ m + n = n + m;% ⊦ (m + n0) + n1 = m + n0 + n1;% ⊦ m + n < m + n0 ↔ n < n0;% ⊦ m < n ∧ n ≤ n0 → m < n0; (forward)% ⊦ m * n = n * m;% ⊦ m0 * m * n = (m0 * m) * n;% ⊦ i ≤ i;% ⊦ 0 < j → abs(j) = j;% ⊦ i→n(i) ≤ i→n(j) ↔ abs(i) ≤ abs(j);%0 ≠ m ⊦ (* m) * n ≤ m * n0 ↔ n ≤ n0;% ⊦ i ≠ j → (i ≤ j ↔ i < j);