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Proof step 29 from proof inv-read-gblock-nodes (previous step)

# gndx = # lax, # lpt = # avol, # lpt0 = # avol, LEB_SIZE = n0 + # buf1, avol[m5] = mapped(buf1), m5 < # avol, abs-nodes(buf1, gndx, lax, true), awbuf-inv(avol, bleb), buf-ro-rw-mode(isbuf, bleb, lpt0, avol), bufs-log-only(bleb, log0, lpt0), lpt-free-unref(lpt), lpt-leb-size(lpt), lpt-ram-flash(lpt0, lpt, log0), # buf1 ≤ LEB_SIZE ⊦ ∃ gndx2, lax1. abs-nodes(buf1, 0, gndx2, lax1, true)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 30:
⊦ abs-nodes(buf, gndx, lax, weak) ↔ abs-nodes(buf, 0, gndx, lax, weak)

Rule argument

spec: abs-list, inst: encoding-group-node name: abs-nodes seq: ⊦ abs-nodes(buf, gndx, lax, weak) ↔ abs-nodes(buf, 0, gndx, lax, weak) subst: [weak, lax, gndx, buf] → [true, lax, gndx, buf1] flags: <all paths>

Additional information

Used simplifier rules: ⊦ abs-nodes(buf, m, gndx, lax0, true) → (abs-nodes(buf, m, gndx0, lax1, true) ↔ gndx = gndx0 ∧ lax0 = lax1); (s) Used terms: true, lax, gndx, buf1