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Proof step 21 from proof prepost-restore-log (previous step)

inv(gstore2 \ ginval), n ∈ gstore2, n ∈ ginval, ∀ n0. n0 ∈ elems(nx0 + n ' + nx2) ∩ ginval ↔ n0 ∈ ∅ ⊦ # ginval = 0, ginval = ∅

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 22:
inv(gstore2 \ ginval), n ∈ ginval, n ∈ gstore2, ∀ n0. ¬ n0 ∈ elems(nx0 + n ' + nx2) ∩ ginval ⊦ # ginval = 0, ginval = ∅

Rule argument

Additional information

Used simplifier rules: ⊦ ¬ n ∈ ∅; (s)