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Proof step 5 from proof validsubset-predefined (previous step)

is_predefined_class(class), newref(r, st) ⊦ r = jvmref, valid⊆(str, st, addobj(r, class, [], st))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ valid⊆(str, st, st0) ↔ (∀ r, ty. validref(str, r, ty, st) → validref(str, r, ty, st0)) ∧ (∀ r. ¬ r ∈ st ∧ r ∈ st0 → ¬ junkref(str, r, st0))
Proof step 4:
is_predefined_class(class), newref(r, st) ⊦ r = jvmref, (∀ r0, ty. validref(str, r0, ty, st) → validref(str, r0, ty, addobj(r, class, [], st))) ∧ (∀ r0. ¬ r0 ∈ st ∧ r0 ∈ addobj(r, class, [], st) → ¬ junkref(str, r0, addobj(r, class, [], st)))

Rule argument

[crewrite-arg: validsubset-def , F , [st0, st, str] → [addobj(r, class, [], st), st, str] ]

Additional information

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