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Theorem refine-move-buf

bleb = buffered(m) ∨ (bleb = nobuffer ∨ is-aligned(# avol[bleb.leb].data, EB_PAGE_SIZE)) ∧ m < # avol ∧ avol[m].mapped? ∧ m0 = # avol[m].data, abs(avol, bleb0, wbuf, avol0, rofs), bleb = bleb0, adr = adr0, m1 = m2, plog = plog0, lpt = lpt0, ns = ns0, rofs0 ↔ rofs, awbuf-inv(avol, bleb), # lpt = # avol, wbuf-cons(bleb0, wbuf, avol0, rofs), m3 = EB_PAGE_SIZE, ebm-vol-inv(avol0), # lpt0 = # avol0 ⊦ ⟪wbuf_move_buf#(m, m0, rofs, avol0; bleb0, wbuf; err)⟫ ⟨awbuf_move_buf#(m, m0, adr, m1, plog, avol, lpt, ns, rofs0; bleb; err0)⟩ ( (abs(avol, bleb0, wbuf, avol0, rofs) ∧ bleb = bleb0 ∧ adr = adr0 ∧ m1 = m2 ∧ plog = plog0 ∧ lpt = lpt0 ∧ ns = ns0 ∧ (rofs0 ↔ rofs)) ∧ err = err0)

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