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Proof step 4 from proof valid-recs-sqns-update (previous step)

apebs[m0] = mkpeb(aehdr, avhdr, buf, m2, boolvar), ∀ ladr. ladr ∈ recs → recs[ladr].pnum < # apebs ∧ apebs[recs[ladr].pnum].vidhdr.sqn = recs[ladr].sqn ⊦ (∀ ladr. ladr ∈ recs[v × m, recovery-entry(m0, m1)] → recs[v × m, recovery-entry(m0, m1)][ladr].pnum < # apebs ∧ apebs[recs[v × m, recovery-entry(m0, m1)][ladr].pnum].vidhdr.sqn = recs[v × m, recovery-entry(m0, m1)][ladr].sqn) ↔ m0 < # apebs ∧ avhdr.sqn = m1

User applied rule case distinction

And obtained the following new goals

Rule argument

pos: right 1

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