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Proof step 2 from proof nodes-append (previous step)

st[n] = mkblock(x, lax, m0), inv(mkblock(x, lax, m0)), n ∈ st ⊦ nodes(st[n, mkblock(x + a ', lax + ladr ', m1)]) = nodes(st)[@(n, ladr.off, ladr.size), a], ladr ∈ lax

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 3:
st[n] = mkblock(x, lax, m0), ladr = @(m, m2), inv(mkblock(x, lax, m0)), n ∈ st ⊦ nodes(st[n, mkblock(x + a ', lax + ladr ', m1)]) = nodes(st)[@(n, m, m2), a], ladr ∈ lax

Rule argument

spec: laddress name: elim seq: ⊦ m = ladr.off ∧ m0 = ladr.size ↔ ladr = @(m, m0) subst: [ladr, m, m0] → [ladr, m, m2]

Additional information

Used simplifier rules: ⊦ m = ladr.off ∧ m0 = ladr.size ↔ ladr = @(m, m0); (elim) Used terms: ladr, m, m2