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Proof step 42 from proof refine-remap (previous step)

# avol0 = # avol1, # lpt0 = # avol1, # buf = EB_PAGE_SIZE, err = err0, m4 < # avol1, abs(avol1, bleb0, mkwbuf(buf, m3, m2), avol0, rofs), awbuf-inv(avol1, bleb0), ebm-vol-inv(avol0), synced(avol1), bleb0 ≠ nobuffer → bleb0.leb < # avol1 ∧ wbuf-cons(mkwbuf(buf, m3, m2), avol0[bleb0.leb], rofs), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪skip or avol0[m4] := unmapped⟫ ⟨awbuf_remap#(m4, adr0, m1, plog0, lpt0, ns0, bleb0, rofs; avol1; err1)⟩ (abs(avol1, bleb0, mkwbuf(buf, m3, m2), avol0, rofs) ∧ err = err1), buffered(m4) = bleb0, err = ESUCCESS

Heuristic conditional right split applied rule or split right

And obtained the following new goals

Rule argument

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