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Proof step 13 from proof ubi-io-initial-valid-sqns-h (previous step)

n0 < # apebs, ubi-io-peb-inv(apebs[n0]), valid-peb(v, m, apebs[n0]), ¬ apebs[n0].bad → apebs[n0].echdr.valid? ∧ apebs[n0].vidhdr = empty, ∀ apebs, v, m. ubi-io-initial(apebs) ∧ n0 ≤ # apebs → valid-sqns(v, m, apebs, n0) = ∅ ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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