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Proof step 16 from proof validrefkeynotnull-put-byteval (previous step)

validrefvalnotnull(str, st[rk], ty, st), rk ∈ st, is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']) ⊦ r = jvmref, mkfs(class, byte_type, fieldvar) ' = _length, is_referencevalue(st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk]) ∧ validrefnotnull (str, (st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk]) .refval, ty, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)])

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 5:
⊦ validrefvalnotnull(str, val, ty, st) ↔ is_referencevalue(val) ∧ validrefnotnull(str, val .refval, ty, st)
Proof step 15:
is_referencevalue(st[rk]) ∧ validrefnotnull(str, st[rk] .refval, ty, st), rk ∈ st, is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']) ⊦ r = jvmref, mkfs(class, byte_type, fieldvar) ' = _length, is_referencevalue(st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk]) ∧ validrefnotnull (str, (st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk]) .refval, ty, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)])

Rule argument

[crewrite-arg: validrefvalnotnull-def , F , [st, ty, val, str] → [st, ty, st[rk], str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, ty, st[rk], str)]]