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Proof step 2 from proof in-restr-notin-log (previous step)

ax.toSet ⊆ as | n ⊦ ax.toSet ∩ abs-log(nx, gstore).toSet = ∅, n ∈ nx

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
ax.toSet ⊆ as | n ⊦ #(ax.toSet ∩ abs-log(nx, gstore).toSet) = 0, ax.toSet ∩ abs-log(nx, gstore).toSet = ∅, n ∈ nx

Rule argument

Additional information

Used simplifier rules: size-zero: ⊦ # as ≠ 0 → as ≠ ∅; (forward) from specification set-basic[node-store]%size-zero-01: ⊦ as ≠ ∅ → # as ≠ 0; (forward) from specification set-basic[node-store]