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Proof step 1 from proof valid-wl-next-free (conclusion)

m < # apebs, # apebs = # wlar ⊦ valid-wl(subarray(apebs, 0, m), subarray(wlar, 0, m)) ∧ apebs[m] = mkpeb(aechdr(m0), empty, buf, m1, false) → valid-wl(subarray(apebs, 0, m + 1), subarray(wlar[m, wl-entry(m0, free)], 0, m + 1))

System applied rule normalize

And obtained the following new goals

Proof step 2:
# apebs = # wlar, apebs[m] = mkpeb(aechdr(m0), empty, buf, m1, false), m < # apebs, valid-wl(subarray(apebs, 0, m), subarray(wlar, 0, m)) ⊦ valid-wl(subarray(apebs, 0, m + 1), subarray(wlar[m, wl-entry(m0, free)], 0, m + 1))

Proof step 1 from proof valid-wl-next-free (conclusion)

System applied rule normalize

And obtained the following new goals

Rule argument

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