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Proof step 21 from proof del-addobj (previous step)

newref(r, st) ⊦ addobj(r, class, fis, st) -- r = st, r = jvmref

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ st1 = st2 ↔ (∀ rk. (rk ∈ st1 ↔ rk ∈ st2) ∧ st1[rk] = st2[rk])
Proof step 20:
newref(r, st) ⊦ ∀ rk. (rk ∈ addobj(r, class, fis, st) -- r ↔ rk ∈ st) ∧ (addobj(r, class, fis, st) -- r)[rk] = st[rk], r = jvmref

Rule argument

[speclemmaarg: ,st1 = st2 ↔ (∀ rk. (rk ∈ st1 ↔ rk ∈ st2) ∧ st1[rk] = st2[rk]) ,[st2, st1] → [st, addobj(r, class, fis, st) -- r] ,F ,store ,javastore ,Extension ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, addobj(r, class, fis, st) -- r)]]