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Proof step 21 from proof projection-VN-unchanged (conclusion)

⊦ (∀ ev. ev ∈ tr → viewvar(ev) = V ∨ viewvar(ev) = N) → proj(tr, VNview(viewvar)) = tr

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 20:
∀ ev. ev ∈ tr → viewvar(ev) = V ∨ viewvar(ev) = N ⊦ proj(tr, VNview(viewvar)) = tr

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]