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Proof step 1 from proof rangeeq-emptyleb-datasize (conclusion)

⊦ # buf = n0 + n1 ∧ range=(buf, n0, emptyleb, 0, n1) ∧ n ≤ # buf → (n0 < datasize(buf, n) ↔ false)

System applied rule normalize

And obtained the following new goals

Proof step 2:
# buf = n0 + n1, range=(buf, n0, emptyleb, 0, n1), n ≤ # buf ⊦ n0 < datasize(buf, n) ↔ false

Rule argument

Additional information