⊦ ∃ by, bytes. ¬ 0 ≤ b2i(by) ∧ 2 ^ ((n→i(# bytes) + 1) * 8 - 1) = bytes2int(i2b(0) ' + by ' + bytes)
Used simplifier rules: ⊦ ¬ i < j ↔ j ≤ i;