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Proof step 4 from proof validref-ac (previous step)

⊦ validref(str, r, ty, st[jvmref -- mkfs(class, void_type, `initstate' .field) ', initval(done)]) ↔ validref(str, r, ty, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ rk1 .ref = jvmref ∧ r ≠ jvmref → (validref(str, r, ty1, st[rk1, val]) ↔ validref(str, r, ty1, st))
Proof step 3:
⊦ validref(str, jvmref, ty, st)

Rule argument

[crewrite-arg: validref-put-statfield , F , [val, rk1, st, ty1, r, str] → [initval(done), jvmref -- mkfs(class, void_type, `initstate' .field) ', st, ty, r, str] ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (r -- sk) .ref = r])], [EXTRATERMS : (initval(done), jvmref -- mkfs(class, void_type, `initstate' .field) ', st, ty, r, str)]]