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Proof step 9 from proof validstatfield-put-array-norefval (previous step)

st[jvmref -- mkfs(class, ty, fieldvar) '] = refval(r), jvmref -- mkfs(class, ty, fieldvar) ' ∈ st, initdone(class, st), tdname∃(str, class), mkfs(class, ty, fieldvar) ' ∈ statfields(class), okval(val, st[r1 -- _type] .type .type), is_reftype(ty), type∃(str, ty), jvmref ∈ st, validref(str, r, ty, st) ⊦ ty = void_type, validref(str, r, ty, st[r1 -- i ', val]), is_referencevalue(val)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 8:
⊦ ¬ is_referencevalue(val) ∧ validref(str, r, ty, st) ∧ okval(val, st[r1 -- _type] .type .type) → validref(str, r, ty, st[r1 -- i ', val])

Rule argument

[crewrite-arg: validref-put-array-norefval , F , [val, i, r1, st, ty, r, str] → [val, i, r1, st, ty, r, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (val, i, r1, st, ty, r, str)]]