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Proof step 5 from proof validrefvalnotnull-addobj (previous step)

newref(r1, st), validrefvalnotnull(str, val, ty1, st) ⊦ r1 = jvmref, validrefvalnotnull(str, val, ty1, addobj(r1, class, fis, st))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ validrefvalnotnull(str, val, ty, st) ↔ is_referencevalue(val) ∧ validrefnotnull(str, val .refval, ty, st)
Proof step 4:
newref(r1, st), validrefvalnotnull(str, val, ty1, st) ⊦ r1 = jvmref, is_referencevalue(val) ∧ validrefnotnull(str, val .refval, ty1, addobj(r1, class, fis, st))

Rule argument

[crewrite-arg: validrefvalnotnull-def , F , [st, ty, val, str] → [addobj(r1, class, fis, st), ty1, val, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (addobj(r1, class, fis, st), ty1, val, str)]]