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Proof step 14 from proof unchanged-symmetric (previous step)

⊦ unchanged(str, r, st, st1) ↔ (∀ r0. (path∃(str, r, r0, st1) ↔ path∃(str, r, r0, st)) ∧ (path∃(str, r, r0, st1) → unchangedNorec(r0, st1, st)))

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: unchanged-def antecedent: succedent: unchanged(str, r, st, st0) ↔ (∀ r0. (path∃(str, r, r0, st) ↔ path∃(str, r, r0, st0)) ∧ (path∃(str, r, r0, st) → unchangedNorec(r0, st, st0))) substlist: [st0, st, r, str] → [st1, st, r, str] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((1, 0, 0, 1, 0)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st1, st, r, str)]]