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Proof step 3 from proof unchNorec-isobj-02 (previous step)

unchangedNorec(r, st, st0), is_obj(str, r, st0) ⊦ is_obj(str, r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ unchangedNorec(r, st, st0) ↔ unchangedNorec(r, st0, st)
Proof step 2:
⊦ unchangedNorec(r, st, st0) ∧ is_obj(str, r, st) → (¬ is_obj(str, r, st0) ↔ false)

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: unchNorec-sym antecedent: succedent: unchangedNorec(r, st, st0) ↔ unchangedNorec(r, st0, st) substlist: [st0, st, r] → [st0, st, r] 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 : (st0, st, r)]]