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Proof step 7 from proof junkref-put-statfield (previous step)

junkrefs(str, r ' + refs0, st[r -- _type] .type, st) ⊦ r = jvmref, junkref(str, r, st[jvmref -- sk, val])

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ junkref(str, r, st) ↔ (∃ refs. refs ≠ [] ∧ refs .first = r ∧ junkrefs(str, refs, st[r -- _type] .type, st))
Proof step 6:
junkrefs(str, r ' + refs0, st[r -- _type] .type, st) ⊦ r = jvmref, ∃ refs. refs ≠ [] ∧ refs .first = r ∧ junkrefs(str, refs, (st[jvmref -- sk, val][r -- _type]) .type, st[jvmref -- sk, val])

Rule argument

[crewrite-arg: junkref-def , F , [st, r, str] → [st[jvmref -- sk, val], r, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st[jvmref -- sk, val], r, str)]]