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Proof step 1 from proof down-appended-less (conclusion)

n < # avol0, # buf0 < EB_PAGE_SIZE ⊦ avol0[n] = mapped(buf) ∧ is-aligned(# buf, EB_PAGE_SIZE) → (avol1 ↓ avol0[n, mapped(buf + buf0)] ↔ avol1 ↓ avol0)

System applied rule normalize

And obtained the following new goals

Proof step 2:
avol0[n] = mapped(buf), # buf0 < EB_PAGE_SIZE, n < # avol0, is-aligned(# buf, EB_PAGE_SIZE) ⊦ avol1 ↓ avol0[n, mapped(buf + buf0)] ↔ avol1 ↓ avol0

Proof step 1 from proof down-appended-less (conclusion)

System applied rule normalize

And obtained the following new goals

Rule argument

Additional information