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Proof step 4 from proof valid-eraseq-stronger-one (previous step)

apebs[m] = mkpeb(aehdr, avhdr, buf, m0, boolvar) ⊦ valid-eraseq-stronger(apebs, eq-entry(m, lref) ') ↔ m < # apebs ∧ (lref = none → ¬ valid-peb(mkpeb(aehdr, avhdr, buf, m0, boolvar))) ∧ (lref ≠ none → valid-peb(lref.vol, lref.leb, mkpeb(aehdr, avhdr, buf, m0, boolvar)) ∧ avhdr.sqn ≠ valid-sqns(lref.vol, lref.leb, apebs).max)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 5:
⊦ eqent ' = eqent + []
Proof step 6:
apebs[m] = mkpeb(aehdr, avhdr, buf, m0, boolvar) ⊦ valid-eraseq-stronger(apebs, eq-entry(m, lref) + []) ↔ m < # apebs ∧ (lref = none → ¬ valid-peb(mkpeb(aehdr, avhdr, buf, m0, boolvar))) ∧ (lref ≠ none → valid-peb(lref.vol, lref.leb, mkpeb(aehdr, avhdr, buf, m0, boolvar)) ∧ avhdr.sqn ≠ valid-sqns(lref.vol, lref.leb, apebs).max)

Rule argument

spec: list, inst: erasequeue-base name: One seq: ⊦ eqent ' = eqent + [] subst: [eqent] → [eq-entry(m, lref)] flags: <all paths>

Additional information

Used terms: eq-entry(m, lref)