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Proof step 9 from proof validref-addobj (previous step)

newref(r1, st), st[r -- _type] .type ≤ ty1 ⊦ r1 = jvmref, r = jvmref, junkref(str, r, addobj(r1, class, fis, st)), junkref(str, r, st), (addobj(r1, class, fis, st)[r -- _type]) .type ≤ ty1

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: ,r ≠ r0 → (addobj(r, class1, fis, st)[r0 -- sk]) = st[r0 -- sk] ,[sk, r0, st, fis, class1, r] → [_type, r, st, fis, class, r1] ,F ,addfuns , ,add-ref ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (_type, r, st, fis, class, r1)]]