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Proof step 4 from proof same-used-extract (previous step)

# wlar0 = # wlar1, wlar0[n] = wl-entry(m0, used), wlar1[n] = wl-entry(m, stat), n < # wlar1, ∀ n. n < # wlar1 → (wlar0[n].status = used ↔ wlar1[n].status = used) ⊦ stat = used

User applied rule all left

And closed the goal!

Rule argument

pos: left 5 terms: n abort: F discard: T computed: T

Additional information

Used simplifier rules: ⊦ wl-entry(m, stat).status = stat; (s) Used terms: n