256 ≤ band(i, 255), 0 < band(i, 255), 0 ≤ band(i, 255) ⊦
Used simplifier rules: ⊦ i ≤ j ∧ 0 < i → 0 < j; (forward)% ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward)