| n0 + m0 ≤ n1 ∨ n1 + m1 ≤ n0, n + m0 ≤ # ar, n0 + m0 ≤ # ar0 ⊦ range=(ar2, n2, copy(ar, n, ar0, n0, m0), n1, m1) ↔ range=(ar2, n2, ar0, n1, m1) |
n0 + m0 ≤ # ar0, n + m0 ≤ # ar, n0 + m0 ≤ n1 ∨ n1 + m1 ≤ n0 ⊦ range=(ar2, n2, copy(ar, n, ar0, n0, m0), n1, m1) ↔ range=(ar2, n2, ar0, n1, m1)