8 ≤ j, 0 ≤ i, 0 < j, 0 ≤ j ⊦ i >> j = i / 256 >> (j - 8)
Used simplifier rules: ⊦ i ≤ j ∧ 0 < i → 0 < j; (forward)% ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward)