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Proof step 3 from proof lf-used-info (previous step)

wlar[n] = wl-entry(m, used), n < # wlar, valid-eraseq(wlar, q), n ∈ q ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ valid-eraseq(wlar, q) ↔ (∀ n. n ∈ q ↔ n < # wlar ∧ wlar[n].status = erasing)
Proof step 5:
wlar[n] = wl-entry(m, used), n < # wlar, n ∈ q, ∀ n. n ∈ q ↔ n < # wlar ∧ wlar[n].status = erasing ⊦

Rule argument

spec: ubi-base name: valid-eraseqw seq: ⊦ valid-eraseq(wlar, q) ↔ (∀ n. n ∈ q ↔ n < # wlar ∧ wlar[n].status = erasing) subst: [q, wlar] → [q, wlar] flags: <all paths>

Additional information

Used terms: q, wlar