| ⊦ m0 + n0 ≤ m ∧ m + n ≤ # ar ∧ n ≤ # ar0 → copy(copy(ar0, 0, ar, m, n), m0, mkarray(n0), 0, n0) = copy(ar, m0, mkarray(n0), 0, n0) |
m0 + n0 ≤ m, m + n ≤ # ar, n ≤ # ar0 ⊦ copy(copy(ar0, 0, ar, m, n), m0, mkarray(n0), 0, n0) = copy(ar, m0, mkarray(n0), 0, n0)