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Proof step 2 from proof lf-valid-wl-not-erroneous (previous step)

apebs[n] = mkpeb(aehdr, avhdr, buf, m, boolvar), wlar[n] = wl-entry(m0, stat), boolvar, n < # wlar, valid-wl(apebs, wlar) ⊦ stat = erroneous

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
apebs[n] = mkpeb(aehdr, avhdr, buf, m, true), wlar[n] = wl-entry(m0, stat), n < # wlar, valid-wl(apebs, wlar) ⊦ stat = erroneous

Rule argument

Additional information

Used simplifier rules: ⊦ m < n → n ≠ 0; (s)%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic