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Proof step 20 from proof delta-erase-worker-helper (previous step)

ecs(wlar).max = n0 + m1, wlar[n] = wl-entry(m1, stat0), UBI_ERASE_RETRIES < n0, n < # wlar, Δ wlar < n0, m ≤ n0, m ≤ UBI_ERASE_RETRIES + 1 ⊦ n0 + (Δ wlar - n0) = Δ wlar, m = 0

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: ubi-quality-base name: in-delta seq: ⊦ n < # wlar ∧ wlar[n] = wl-entry(n0, stat) ∧ ecs(wlar).max = n0 + n1 → (Δ wlar < n1 ↔ false) subst: [n, n0, stat, n1, wlar] → [n, m1, stat0, n0, wlar] flags: <all paths>

Additional information

Used simplifier rules: c: ⊦ m + n = n + m; from specification nat-basic Used terms: n, m1, stat0, n0, wlar