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Proof step 15 from proof in-used-h (previous step)

wlar[m] = wl-entry(m2, used), wlar[m0] = wl-entry(m3, stat), stat = used, m0 + 1 < # wlar, m0 < m, m < # wlar, m0 < # wlar, m3 ∈ used-ecs(wlar, m) ⊦ # used-ecs(wlar, m) = 0, #(used-ecs(wlar, m) ++ m2) = 0, used-ecs(wlar, m) = ∅, ∃ m1. ¬ m < m1 ∧ wlar[m1].status = used ∧ wlar[m1].ec = m3

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 16:
wlar[m0] = wl-entry(m3, used), wlar[m] = wl-entry(m2, used), m0 < # wlar, m < # wlar, m0 < m, m0 + 1 < # wlar, m3 ∈ used-ecs(wlar, m) ⊦ #(used-ecs(wlar, m) ++ m2) = 0, # used-ecs(wlar, m) = 0, used-ecs(wlar, m) = ∅, ∃ m1. ¬ m < m1 ∧ wlar[m1].status = used ∧ wlar[m1].ec = m3

Proof step 15 from proof in-used-h (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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