i < ~1, i < 0 ⊦ # int2bits(~(i + 1)) < m ↔ ¬ i + 2 ^ (n→i(m) - 2) < 0
Used simplifier rules: ⊦ ¬ m < n ↔ n ≤ m;% ⊦ ~ i - j = ~(i + j);