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Proof step 6 from proof crash-neutral-unmap (previous step)

# lpt = # avol, adr = adr0, m = m1, m0 = m2, ns = ns0, nx = nx0, m0 < # avol, m2 < # avol, awbuf-inv(avol, bleb), synced(avol), synced(avol0), avol0 ↓ avol ⊦ buffered(m2) = bleb, avol0 ↓ avol[m0, unmapped]

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 7:
# lpt = # avol, m2 < # avol, awbuf-inv(avol, bleb), synced(avol), synced(avol0), avol0 ↓ avol ⊦ buffered(m2) = bleb, avol0 ↓ avol[m2, unmapped]

Rule argument

Additional information

Used simplifier rules: lf-01: ⊦ m < n ∧ n = n0 → m < n0; (forward) from specification nat-basic