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Proof step 2 from proof is_obj-refval-01 (
previous step
)
mkfs(str2 .class, mkarraytype(ty), str1 .field) ' ∈ instfields(st[r -- _type] .type .class) ⊦ is_obj(str, r, st) → (¬ is_referencevalue(st[r -- mkfs(((* str2)) .class, mkarraytype(ty), ((* str1)) .field) ']) ↔ false)
Lemma
is_obj-no-refval-03