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Proof step 19 from proof validstatfield-put-norefval (previous step)

st[jvmref -- mkfs(class, ty, fieldvar) '] = refval(r0), jvmref -- mkfs(class, ty, fieldvar) ' ∈ st, initdone(class, st), tdname∃(str, class), mkfs(class, ty, fieldvar) ' ∈ statfields(class), okval(val, ty0), is_reftype(ty), jvmref ∈ st, type∃(str, ty), validref(str, r0, ty, st), jvmref ≠ r ∨ class ≠ class0 ∨ ty ≠ ty0 ∨ fieldvar ≠ fieldvar0 ⊦ ty = void_type, r -- mkfs(class0, ty0, fieldvar0) ' = _uninit, ty0 = void_type, mkfs(class0, ty0, fieldvar0) ' = _length, validref(str, r0, ty, st[r -- mkfs(class0, ty0, fieldvar0) ', val]), is_referencevalue(val)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 18:
⊦ ¬ 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(class0, ty0, fieldvar0) ', r, st, ty, r0, 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(class0, ty0, fieldvar0) ', r, st, ty, r0, str)]]