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Proof step 10 from proof validref-put-norefval-equiv (previous step)

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

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ validref(str, r, ty, st) ↔ r = jvmref ∨ st[r -- _type] .type ≤ ty ∧ ¬ junkref(str, r, st)
Proof step 9:
okval(st[r1 -- mkfs(class, ty0, fieldvar) '], ty0), r1 -- mkfs(class, ty0, fieldvar) ' ∈ st, okval(val, ty0), r1 ∈ st, r = jvmref ∨ (st[r1 -- mkfs(class, ty0, fieldvar) ', val][r -- _type]) .type ≤ ty ∧ ¬ junkref(str, r, st[r1 -- mkfs(class, ty0, fieldvar) ', val]) ⊦ mkfs(class, ty0, fieldvar) ' = _length, ty0 = void_type, is_referencevalue(val), validref(str, r, ty, st)

Rule argument

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

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st[r1 -- mkfs(class, ty0, fieldvar) ', val], ty, r, str)]]