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Proof step 9 from proof isobj-put-04 (previous step)

st[r0 -- _type] .type = mkclasstype(class), r0 ∈ st, r0 -- _type ∈ st, is_typevalue(st[r0 -- _type]), is_obj(r0, st) ⊦ r0 = jvmref, r = r0, is_obj(r0, class, st)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 8:
⊦ ¬ is_obj(r, class, st) ∧ st[r -- _type] = typeval(mkclasstype(class)) → ¬ is_obj(r, st)

Rule argument

[speclemmaarg: ,is_typevalue(val) → (ty = val .type ↔ val = typeval(ty)) ,[val, ty] → [st[r0 -- _type], ty] ,T ,javavalue , ,elim-10 ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ is_typevalue(val) → ( ty = val .type ↔ val = typeval(ty))])], [EXTRATERMS : (st[r0 -- _type], ty)]]