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Proof step 19 from proof junkref-put-badfield (previous step)

_type = fs ', junkrefs(str, r0 ' + refs0, val .type, st[r0 -- _type, val]) ⊦ junkref(str, r0, st), is_typevalue(st[r0 -- _type]) ∧ is_reftype(st[r0 -- _type] .type)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ _type = mkfs(`java.lang.Object' .class, void_type, `type' .field) '
Proof step 18:
mkfs(`java.lang.Object' .class, void_type, `type' .field) ' = fs ', junkrefs(str, r0 ' + refs0, val .type, st[r0 -- mkfs(`java.lang.Object' .class, void_type, `type' .field) ', val]) ⊦ junkref(str, r0, st), is_typevalue(st[r0 -- mkfs(`java.lang.Object' .class, void_type, `type' .field) ']) ∧ is_reftype(st[r0 -- mkfs(`java.lang.Object' .class, void_type, `type' .field) '] .type)

Rule argument

[speclemmaarg: ,_type = mkfs(`java.lang.Object' .class, void_type, `type' .field) ' ,[] → [] ,F ,specialkeys , ,type ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : ()]]