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Proof step 5 from proof nodes-except-refsize (previous step)

gstore1 =○refsize gstore0 ⊦ ∀ adr. (adr ∈ nodes(gstore1, ginval) ↔ adr ∈ nodes(gstore0, ginval)) ∧ nodes(gstore1, ginval)[adr] = nodes(gstore0, ginval)[adr]

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
gstore1 =○refsize gstore0 ⊦ (¬ adr.lnum ∈ ginval → (adr ∈ gstore1 ↔ adr ∈ gstore0)) ∧ nodes(gstore1, ginval)[adr] = nodes(gstore0, ginval)[adr]

Rule argument

Additional information

Used simplifier rules: nodes-gstore-in: ⊦ adr ∈ nodes(gstore, ginval) ↔ ¬ ¬(adr ∈ gstore ∧ ¬ adr.lnum ∈ ginval);