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Proof step 27 from proof valid-wl-write-valid (previous step)

# apebs = # wlar, avhdr0.sqn = ( (valid-sqns(v, m5, apebs) \ (valid-peb(v, m5, mkpeb(aehdr, avhdr, buf0, m0, boolvar0)) ⊃ {avhdr.sqn} ;∅)) ∪ (valid-peb(v, m5, mkpeb(aehdr, avhdr, buf1, m1, boolvar1)) ⊃ {avhdr.sqn} ;∅) ).max, apebs[n] = mkpeb(aechdr(m4), avhdr0, buf, m3, false), wlar[m] = wl-entry(m2, used), apebs[m] = mkpeb(aehdr, avhdr, buf0, m0, boolvar0), wlar[n] = wl-entry(m4, used), n < # wlar, m < # wlar, valid-peb(mkpeb(aehdr, avhdr, buf1, m1, boolvar1)), valid-peb(mkpeb(aehdr, avhdr, buf0, m0, boolvar0)), valid-peb(v, m5, mkpeb(aechdr(m4), avhdr0, buf, m3, false)) ⊦ avhdr0.sqn = valid-sqns(v, m5, apebs).max, n = m

Heuristic if-then-else split applied rule case distinction

And obtained the following new goals

Rule argument

pos: left 2

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