| ⊦ b2i(by1) = 0, i % b2i(by1) = b2i(i2b(i % b2i(by1))), ¬ i % b2i(by1) < ~128 ∧ ¬ 127 < i % b2i(by1) |
i < 0 ⊦ b2i(by1) = 0, i % b2i(by1) = b2i(i2b(i % b2i(by1))), ¬ i % b2i(by1) < ~128 ∧ ¬ 127 < i % b2i(by1)
⊦ i < 0, b2i(by1) = 0, i % b2i(by1) = b2i(i2b(i % b2i(by1))), ¬ i % b2i(by1) < ~128 ∧ ¬ 127 < i % b2i(by1)
Used formulas: i < 0