| ⊦ ¬ 32768 ≤ b2i(by1) + b2i(by2), b2i(by1) + b2i(by2) = s2i(i2s(b2i(by1) + b2i(by2))) |
32768 ≤ b2i(by1) + b2i(by2), 0 < b2i(by1) + b2i(by2), 0 ≤ b2i(by1) + b2i(by2) ⊦ b2i(by1) + b2i(by2) = s2i(i2s(b2i(by1) + b2i(by2)))
Used simplifier rules: ⊦ i ≤ j ∧ 0 < i → 0 < j; (forward)% ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward)% ⊦ i + j = j + i;