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Proof step 5 from proof classof-05 (conclusion)

⊦ classof(r, class1, st[_mode, val]) ↔ classof(r, class1, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ classof(r, class1, st) ↔ r ≠ jvmref ∧ r -- _type ∈ st ∧ st[r -- _type] = typeval(mkclasstype(class1))
Proof step 4:
⊦ r ≠ jvmref ∧ r -- _type ∈ st[_mode, val] ∧ (st[_mode, val][r -- _type]) = typeval(mkclasstype(class1)) ↔ classof(r, class1, st)

Rule argument

[crewrite-arg: classOf , F , [st, class1, r] → [st[_mode, val], class1, r] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st[_mode, val], class1, r)]]