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Proof step 17 from proof validstatfield-put-array-norefval (previous step)

okval(val, st[r1 -- _type] .type .type), mkfs(class, ty, fieldvar) ' ∈ statfields(class), tdname∃(str, class), initdone(class, st), validfield(str, jvmref, mkfs(class, ty, fieldvar) ', st) ⊦ is_referencevalue(val), validfield(str, jvmref, mkfs(class, ty, fieldvar) ', st[r1 -- i ', val])

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ validfield(str, r, sk, st) ↔ goodfieldandtype(r, sk, st) ∧ type∃(str, sk .fs .type) ∧ sk .fs .type ≠ void_type ∧ (is_reftype(sk .fs .type) → validrefval(str, st[r -- sk], sk .fs .type, st))
Proof step 16:
okval(val, st[r1 -- _type] .type .type), mkfs(class, ty, fieldvar) ' ∈ statfields(class), tdname∃(str, class), initdone(class, st), validfield(str, jvmref, mkfs(class, ty, fieldvar) ', st) ⊦ is_referencevalue(val), goodfieldandtype(jvmref, mkfs(class, ty, fieldvar) ', st[r1 -- i ', val]) ∧ type∃(str, mkfs(class, ty, fieldvar) ' .fs .type) ∧ mkfs(class, ty, fieldvar) ' .fs .type ≠ void_type ∧ ( is_reftype(mkfs(class, ty, fieldvar) ' .fs .type) → validrefval(str, st[r1 -- i ', val][jvmref -- mkfs(class, ty, fieldvar) '], mkfs(class, ty, fieldvar) ' .fs .type, st[r1 -- i ', val]))

Rule argument

[crewrite-arg: validfield-def , F , [st, sk, r, str] → [st[r1 -- i ', val], mkfs(class, ty, fieldvar) ', jvmref, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st[r1 -- i ', val], mkfs(class, ty, fieldvar) ', jvmref, str)]]