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