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Proof step 19 from proof validrefkeynotnull-put-byteval (previous step)

is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']), validrefkeynotnull(str, rk, ty, st) ⊦ mkfs(class, byte_type, fieldvar) ' = _length, r = jvmref, validrefvalnotnull(str, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk], ty, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)])

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ validrefkeynotnull(str, rk, ty, st) ↔ rk ∈ st ∧ validrefvalnotnull(str, st[rk], ty, st)
Proof step 18:
is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']), rk ∈ st ∧ validrefvalnotnull(str, st[rk], ty, st) ⊦ mkfs(class, byte_type, fieldvar) ' = _length, r = jvmref, validrefvalnotnull(str, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk], ty, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)])

Rule argument

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

Additional information

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