| 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))) |
32768 ≤ b2i(by1) + b2i(by2), 0 < b2i(by1) + b2i(by2), 0 ≤ b2i(by1) + b2i(by2) ⊦ 32768 ≤ b2i(by1) + 127, b2i(by1) + b2i(by2) = s2i(i2s(b2i(by1) + b2i(by2)))
Used simplifier rules: byte-nge: i ≥ 128 ⊦ ¬ (* i) ≤ b2i(by);% ⊦ i + j = j + i;% ⊦ (* j) ≤ i0 + (* j0) ↔ j - j0 ≤ i0;% ⊦ i + j + i0 = (i + j) + i0; Used formulas: 32768 ≤ b2i(by1) + 127