| n ≤ # apebs ⊦ valid-sqns(v, m, apebs, n) = ∅, ∃ n0. n0 < n ∧ valid-peb(v, m, apebs[n0]) ∧ apebs[n0].vidhdr.sqn = valid-sqns(v, m, apebs, n).max |
n ≤ # apebs ⊦ valid-sqns(v, m, apebs, n) = ∅, ∃ n0. n0 < n ∧ valid-peb(v, m, apebs[n0]) ∧ apebs[n0].vidhdr.sqn = valid-sqns(v, m, apebs, n).max