| synced(avol), # lpt = # avol, awbuf-inv(avol, bleb), # lpt0 = # avol, synced(avol0), adr = adr0, m = m0, nx = nx0, lpt1 = lpt0, avol0 ↓ avol, ns = ns0 ⊦ ⟨awbuf_commit#(lpt, adr1, m1, avol, bleb; ns1, adr0, m0, nx0, lpt0, ns0, isbuf; err)⟩ (synced(avol0) ∧ adr = adr0 ∧ m = m0 ∧ nx = nx0 ∧ lpt1 = lpt0 ∧ avol0 ↓ avol ∧ ns = ns0) |