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Proof step 2 from proof validref-put-norefval-01 (previous step)

okval(val, ty0), validref(str, r, ty, st) ⊦ ty0 = void_type, mkfs(class, ty0, fieldvar) ' = _length, is_referencevalue(val), validref(str, r, ty, st[r1 -- mkfs(class, ty0, fieldvar) ', val])

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ ¬ is_referencevalue(val) ∧ validref(str, r, ty, st) ∧ is_fskey(sk) ∧ oktype(val, sk .fs .type, st) ∧ sk .fs .type ≠ void_type ∧ sk ≠ _length → validref(str, r, ty, st[r1 -- sk, val])

Rule argument

[crewrite-arg: validref-put-norefval , F , [val, sk, r1, st, ty, r, str] → [val, mkfs(class, ty0, fieldvar) ', r1, st, ty, r, str] ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_fskey(fs ')], [CSIMPSEQ : ⊦ fs ' .fs = fs], [CSIMPSEQ : ⊦ mkfs(class, ty, fieldvar) .type = ty], [CSIMPSEQ : ⊦ oktype(val, ty, st) ↔ okval(val, ty)])], [EXTRATERMS : (val, mkfs(class, ty0, fieldvar) ', r1, st, ty, r, str)]]