| # bits = m * 8 + n0, m < n, # bits / 8 + 1 < n, n0 < 8 ⊦ # bits % 8 = 0, n0 = 0, n * 8 = # bits, bits = [], mklist(i2b(0), n - # bits / 8 + 1) + bits2bytes(bits) = bits2bytes(mklist(false, (n - 1 - m) * 8) + mklist(false, 8 - n0) + bits), bits.first, ((8 - n0) + # bits) % 8 = 0 ∧ (n - 1 - m) * 8 ≠ 0 |
# bits = m * 8 + n0, m < n, (m * 8 + n0) / 8 + 1 < n, n0 < 8 ⊦ (m * 8 + n0) % 8 = 0, n0 = 0, n * 8 = m * 8 + n0, bits = [], mklist(i2b(0), n - (m * 8 + n0) / 8 + 1) + bits2bytes(bits) = bits2bytes(mklist(false, (n - 1 - m) * 8) + mklist(false, 8 - n0) + bits), bits.first, ((8 - n0) + m * 8 + n0) % 8 = 0 ∧ (n - 1 - m) * 8 ≠ 0