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Proof step 14 from proof valid-wl-next-free (previous step)

# apebs = # wlar, wlar[n] = wl-entry(m4, stat), apebs[n] = mkpeb(aehdr, avhdr, buf0, m3, boolvar), apebs[m] = mkpeb(aechdr(m0), empty, buf, m1, false), ¬ boolvar, n < m, m < # wlar, n < # wlar, n + 1 < # wlar, ∀ n. n < m → (wlar[n].status = erroneous ↔ apebs[n].bad) ∧ (wlar[n].status = free → apebs[n].vidhdr = empty) ∧ (wlar[n].status ≠ erroneous ∧ wlar[n].status ≠ erasing → apebs[n].echdr = aechdr(wlar[n].ec)) ∧ (wlar[n].status = used → (∃ v, m2. valid-peb(v, m2, apebs[n]) ∧ apebs[n].vidhdr.sqn = valid-sqns(v, m2, apebs, m).max)) ⊦ n = m, stat = erroneous, ¬ boolvar ∧ (stat = free → avhdr = empty) ∧ (stat ≠ erasing → aehdr = aechdr(m4)) ∧ (stat = used → (∃ v, m2. valid-peb(v, m2, mkpeb(aehdr, avhdr, buf0, m3, false)) ∧ avhdr.sqn = valid-sqns(v, m2, apebs, m).max))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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