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Proof step 4 from proof inv-is-readonly (previous step)

# buf = EB_PAGE_SIZE, bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m, m0), avol[bleb.leb], rofs) ⊦ ⟪wbuf_is_readonly#(rofs; ; rofs0)⟫ true

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 5:
# buf = EB_PAGE_SIZE, rofs0 ↔ rofs, bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m, m0), avol[bleb.leb], rofs) ⊦ ⟪rofs := rofs0⟫ true

Rule argument

pos: right 1

Additional information

Used simplifier rules: is-readonly: ⊦ ;