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Proof step 7 from proof lebs-write-below (previous step)

n0 < n, n + m0 < # avol, ∀ n0, n, avol, aleb. n0 < n ∧ n + m0 ≤ # avol → lebs(avol[n0, aleb], n, m0) = lebs(avol, n, m0) ⊦ lebs(avol[n0, aleb], n, m0) = lebs(avol, n, m0)

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

pos: left 3 terms: n0, n, avol, aleb

Additional information

Used simplifier rules: ⊦ m < n → m ≤ n; (s) Used terms: n0, n, avol, aleb