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Theorem refine-get-volume-size

abs(avol, bleb, wbuf, avol0, rofs), bleb0 = bleb, adr = adr0, m = m0, plog = plog0, lpt = lpt0, ns = ns0, rofs0 ↔ rofs, awbuf-inv(avol, bleb0), # lpt = # avol, wbuf-cons(bleb, wbuf, avol0, rofs), m1 = EB_PAGE_SIZE, ebm-vol-inv(avol0), # lpt0 = # avol0 ⊦ ⟪wbuf_get_volume_size#(adr0, m0, plog0, avol0, lpt0, ns0; ; n)⟫ ⟨awbuf_get_volume_size#(adr, m, plog, avol, lpt, ns, bleb0, rofs0; ; n0)⟩ ((abs(avol, bleb, wbuf, avol0, rofs) ∧ bleb0 = bleb ∧ adr = adr0 ∧ m = m0 ∧ plog = plog0 ∧ lpt = lpt0 ∧ ns = ns0 ∧ (rofs0 ↔ rofs)) ∧ n = n0)

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