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Proof step 5 from proof jnlhd-in-gstore (previous step)

∀ n. n ∈ elems nx → n ∈ dom gstore ⊦ nx = [], nx.last ∈ gstore

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
∀ n. n ∈ nx → n ∈ gstore ⊦ nx = [], nx.last ∈ gstore

Rule argument

Additional information

Used simplifier rules: ⊦ n ∈ dom gstore ↔ n ∈ gstore; (s)% ⊦ n ∈ elems nx ↔ n ∈ nx; (s)