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Proof step 1 from proof prepost-read-lebs (conclusion)

ebm-vol-inv(avol), n + m ≤ # avol, mapped-full?(avol, n, m) ⊦ ⟪persistence_io_read_lebs#(n, m, LEB_SIZE, avol; ; buf, err)⟫ ((err = ESUCCESS ∨ ⌊err⌋ ) ∧ (err = ESUCCESS → buf = lebs(avol, n, m)))

System applied rule normalize

And obtained the following new goals

Proof step 2:
ebm-vol-inv(avol), mapped-full?(avol, n, m), n + m ≤ # avol ⊦ ⟪persistence_io_read_lebs#(n, m, LEB_SIZE, avol; ; buf, err)⟫ ((err = ESUCCESS ∨ ⌊err⌋ ) ∧ (err = ESUCCESS → buf = lebs(avol, n, m)))

Proof step 1 from proof prepost-read-lebs (conclusion)

System applied rule normalize

And obtained the following new goals

Rule argument

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