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Proof step 61 from proof addobj-addclass-sw (previous step)

⊦ r = jvmref, r0 = r, r0 = jvmref, r0 -- sk ∈ st ↔ r0 -- sk ∈ addclass(class0, fis0, addobj(r, class, fis, st))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 59:
r ≠ jvmref ⊦ r -- sk ∈ addclass(class1, fis, st) ↔ r -- sk ∈ st
Proof step 60:
⊦ r ≠ r0 → (r -- sk ∈ addobj(r0, class1, fis, st) ↔ r -- sk ∈ st)

Rule argument

[crewrite-arg: ac-in-03-02 , F , [st, fis, class1, sk, r] → [addobj(r, class, fis, st), fis0, class0, sk, r0] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (addobj(r, class, fis, st), fis0, class0, sk, r0)]]