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Proof step 6 from proof nodes-remove-refsize0 (previous step)

dom remove-refsize0(gstore) ∩ ginval = ∅ ⊦ (adr ∈ remove-refsize0(gstore) ↔ adr ∈ nodes(gstore, ginval) \ refsize0-addresses(gstore \ ginval)) ∧ (adr ∈ remove-refsize0(gstore) → nodes(remove-refsize0(gstore), ∅)[adr] = (nodes(gstore, ginval) \ refsize0-addresses(gstore \ ginval))[adr])

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: store+set, inst: node-store name: Diff-ext seq: ⊦ adr ∈ fs \ as ↔ adr ∈ fs ∧ ¬ adr ∈ as subst: [as, fs, adr] → [refsize0-addresses(gstore \ ginval), nodes(gstore, ginval), adr] flags: <all paths>

Additional information

Used terms: refsize0-addresses(gstore \ ginval), nodes(gstore, ginval), adr