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Proof step 6 from proof projection-VN-unchanged-01 (previous step)

proj(tr, Cview(viewvar)) = [] ⊦ proj(tr, VNview(viewvar)) = tr

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ proj(tr, Cview(viewvar)) = [] ↔ (∀ ev. ev ∈ tr → viewvar(ev) ≠ C)

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: projection-C-empty antecedent: succedent: proj(tr, Cview(viewvar)) = [] ↔ (∀ ev. ev ∈ tr → viewvar(ev) ≠ C) substlist: [viewvar, tr] → [viewvar, tr] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((0, 0, 0)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (viewvar, tr)]]