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Proof step 7 from proof junkrefs-put-norefval-01 (previous step)

is_obj(str, r, st), junkrefs(str, r ' + acc, ty, st[r1 -- mkfs(class, ty0, fieldvar) ', val]), okval(val, ty0), st[r -- _type] .type ≤ ty, ∀ val, ty0, str, ty, st, r1, class, fieldvar. okval(val, ty0) ∧ junkrefs(str, acc, ty, st[r1 -- mkfs(class, ty0, fieldvar) ', val]) → ty0 = void_type ∨ mkfs(class, ty0, fieldvar) ' = _length ∨ is_referencevalue(val) ∨ junkrefs(str, acc, ty, st) ⊦ r = jvmref, mkfs(class, ty0, fieldvar) ' = _length, ty0 = void_type, junkrefs(str, r ' + acc, ty, st), is_referencevalue(val), is_obj(str, r, st[r1 -- mkfs(class, ty0, fieldvar) ', val])

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: , is_obj(str, r, st) ∧ oktype(val, ty, st) ∧ ty ≠ void_type → is_obj(str, r, st[r1 -- mkfs(class, ty, fieldvar) ', val]) ,[val, fieldvar, ty, class, r1, st, r, str] → [val, fieldvar, ty0, class, r1, st, r, str] ,F ,addfuns , ,is_obj-put ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ oktype(val, ty, st) ↔ okval(val, ty)])], [EXTRATERMS : (val, fieldvar, ty0, class, r1, st, r, str)]]