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Proof step 2 from proof validref-addobj-this (
previous step
)
⊦ newref(r, st) ∧ class+∃(str, class) ∧ fis .keys = instfields(class) ∧ validfieldinits(fis, st) ∧ ¬ is_abstract(class) ∧ (∀ sk, r1. sk × refval(r1) ∈ fis → ¬ junkref(str, r1, st)) → ¬ junkref(str, r, addobj(r, class, fis, st))
Lemma
junkref-addobj-01