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Proof step 5 from proof validref-addobj (previous step)

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

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ ¬ junkref(str, r, st) ∧ newref(r0, st) → ¬ junkref(str, r, addobj(r0, class, fis, st))

Rule argument

[crewrite-arg: junkref-addobj , F , [st, fis, class, r0, r, str] → [st, fis, class, r1, r, str] ]

Additional information

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