bits2uint(bits) < 2 ^ n→i(# bits), # bits ≤ n, 2 ^ n→i(n) ≤ bits2uint(bits), 2 ^ n→i(n) < 2 ^ n→i(# bits) ⊦
Used simplifier rules: ⊦ i ≤ j ∧ j < j0 → i < j0; (forward)