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Proof step 7 from proof delta-write-same (previous step)

⊦ sum-of-differences(ecs(wlar[n, wl-entry(wlar[n].ec, stat)]).max, ecs(wlar[n, wl-entry(wlar[n].ec, stat)])) = sum-of-differences(ecs(wlar).max, ecs(wlar)), n < # wlar

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 8:
# wlar ≤ n ⊦ sum-of-differences(ecs(wlar[n, wl-entry(wlar[n].ec, stat)]).max, ecs(wlar[n, wl-entry(wlar[n].ec, stat)])) = sum-of-differences(ecs(wlar).max, ecs(wlar))

Rule argument

Additional information

Used simplifier rules: ⊦ m < n ↔ ¬ n ≤ m; (ss)