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Proof step 1 from proof delta-write-same (conclusion)

wlar[n].ec = wle.ec ⊦ Δ wlar[n, wle] = Δ wlar

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
wlar[n].ec = wle.ec ⊦ sum-of-differences(ecs(wlar[n, wle]).max, ecs(wlar[n, wle])) = sum-of-differences(ecs(wlar).max, ecs(wlar))

Rule argument

Additional information

Used simplifier rules: delta-01: ⊦ Δ wlar = sum-of-differences(ecs(wlar).max, ecs(wlar));