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Proof step 42 from proof prepost-read-lebs (previous step)

# buf = (n2 + n1) * LEB_SIZE, avol[n3 + n1] = unmapped, subarray(buf, 0, n1 * LEB_SIZE) = lebs(avol, n3, n1), n3 + n1 < # avol, ebm-vol-inv(avol), n3 + n2 + n1 ≤ # avol, n1 * LEB_SIZE + LEB_SIZE ≤ # buf, ∀ n0. n3 ≤ n0 ∧ n0 < n3 + n2 + n1 ∧ n0 < # avol → avol[n0].mapped? ∧ # avol[n0].data = LEB_SIZE ⊦ n2 = 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 43:
# buf = (n2 + n1) * LEB_SIZE, avol[n3 + n1] = unmapped, subarray(buf, 0, n1 * LEB_SIZE) = lebs(avol, n3, n1), n3 + n1 < # avol, ebm-vol-inv(avol), n1 * LEB_SIZE + LEB_SIZE ≤ # buf, n3 + n2 + n1 ≤ # avol, ∀ n0. n3 ≤ n0 ∧ n0 < n3 + n2 + n1 ∧ n0 < # avol → avol[n0].mapped? ∧ # avol[n0].data = LEB_SIZE ⊦ n2 = 0

Proof step 42 from proof prepost-read-lebs (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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