| n < nused, m + nused ≤ # zbrar, zbrar[m + n].key = key, sorted(zbrar, m, nused) ⊦ payload(zbrar[m + n, mkzentry(key, adr)], m, nused) = payload(zbrar, m, nused)[key, adr] |
zbrar[m + n].key = key, n < nused, sorted(zbrar, m, nused), m + nused ≤ # zbrar ⊦ payload(zbrar[m + n, mkzentry(key, adr)], m, nused) = payload(zbrar, m, nused)[key, adr]