| n < n2 + n1, n2 ≤ m0 ⊦ (max(# ar1, n1 + m0) ≤ n ⊃ zero;splice(ar0, n0, ar1, n1, m0)[n]) = splice(ar0, n0, ar1, n1, n2)[n], m0 = 0, n2 = 0 |
n < n2 + n1, n2 ≤ m0 ⊦ (max(# ar1, n1 + m0) ≤ n ⊃ zero;splice(ar0, n0, ar1, n1, m0)[n]) = splice(ar0, n0, ar1, n1, n2)[n], m0 = 0, n2 = 0