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Proof step 5 from proof validref-put-byteval (previous step)

is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']), st[r0 -- _type] .type ≤ ty, junkref(str, r0, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)]) ⊦ mkfs(class, byte_type, fieldvar) ' = _length, r = jvmref, r0 = jvmref, junkref(str, r0, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ ¬ is_referencevalue(val) ∧ ¬ junkref(str, r, st) ∧ is_fskey(sk) ∧ oktype(val, sk .fs .type, st) ∧ sk .fs .type ≠ void_type ∧ sk ≠ _length → ¬ junkref(str, r, st[r1 -- sk, val])

Rule argument

[crewrite-arg: junkref-put-norefval , F , [val, sk, r1, st, r, str] → [byteval(by), mkfs(class, byte_type, fieldvar) ', r, st, r0, str] ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ is_referencevalue(byteval(by))], [CSIMPSEQ : ⊦ is_fskey(fs ')], [CSIMPSEQ : ⊦ fs ' .fs = fs], [CSIMPSEQ : ⊦ mkfs(class, ty, fieldvar) .type = ty], [CSIMPSEQ : ⊦ oktype(val, byte_type, st) ↔ is_bytevalue(val)], [CSIMPSEQ : ⊦ is_bytevalue(byteval(by))], [CSIMPSEQ : ⊦ byte_type ≠ void_type])], [EXTRATERMS : (byteval(by), mkfs(class, byte_type, fieldvar) ', r, st, r0, str)]]