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Proof step 1 from proof nodes-dealloc (conclusion)

⊦ nodes(gstore -- n, ginval ++ n) = nodes(gstore, ginval) \ (dom nodes(gstore, ginval) | n)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: store, inst: node-store name: k-Extension seq: ⊦ fs = fs0 ↔ (∀ adr. (adr ∈ fs ↔ adr ∈ fs0) ∧ (adr ∈ fs → fs[adr] = fs0[adr])) subst: [fs0, fs] → [nodes(gstore, ginval) \ (dom nodes(gstore, ginval) | n), nodes(gstore -- n, ginval ++ n)] flags: <all paths>

Additional information

Used terms: nodes(gstore, ginval) \ (dom nodes(gstore, ginval) | n), nodes(gstore -- n, ginval ++ n)