| ⊦ band(i, 31) ≤ 0, b2i(by) i>> band(i, 31) = b2i(i2b(b2i(by) i>> band(i, 31))), ¬ b2i(by) < 0 ∧ ¬ band(i, 31) ≤ 0 |
0 < band(i, 31), b2i(by) < 0 ⊦ b2i(by) i>> band(i, 31) = b2i(i2b(b2i(by) i>> band(i, 31)))
Used simplifier rules: ⊦ i < j ∧ 0 ≤ i → 0 < j; (forward)% ⊦ j < i ∧ i ≤ 0 → j < 0; (forward)% ⊦ i < j → (¬ ¬ j ≤ i ↔ false);% ⊦ band(i, j) = band(j, i);% ⊦ ¬ i ≤ j ↔ j < i;