| ⊦ m0 < m ∧ m1 < m ∧ m ≤ # zbrar ∧ sorted(zbrar, 0, m) ∧ zbrar[m0] = mkzentry(key, adr0) → (zbrar[m1] = mkzentry(key, adr1) ↔ m0 = m1 ∧ adr0 = adr1) |
zbrar[m0] = mkzentry(key, adr0), m0 < m, m1 < m, sorted(zbrar, 0, m), m ≤ # zbrar ⊦ zbrar[m1] = mkzentry(key, adr1) ↔ m0 = m1 ∧ adr0 = adr1