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Proof step 1 from proof valid-eraseq-stronger-next-append-lref (conclusion)

m < # apebs ⊦ valid-eraseq-stronger(subarray(apebs, 0, m), q) → ( valid-eraseq-stronger(subarray(apebs, 0, m + 1), q + eq-entry(m, v × n) ') ↔ valid-peb(v, n, apebs[m]) ∧ apebs[m].vidhdr.sqn ≠ valid-sqns(v, n, apebs, m + 1).max)

System applied rule normalize

And obtained the following new goals

Proof step 2:
m < # apebs, valid-eraseq-stronger(subarray(apebs, 0, m), q) ⊦ valid-eraseq-stronger(subarray(apebs, 0, m + 1), q + eq-entry(m, v × n) ') ↔ valid-peb(v, n, apebs[m]) ∧ apebs[m].vidhdr.sqn ≠ valid-sqns(v, n, apebs, m + 1).max

Proof step 1 from proof valid-eraseq-stronger-next-append-lref (conclusion)

System applied rule normalize

And obtained the following new goals

Rule argument

Additional information