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Proof step 3 from proof junkrefs-newref-04 (conclusion)

⊦ newref(r, st) → (¬ junkrefs(str, r ', ty, st) ↔ false)

User applied rule insert lemma

And obtained the following new goals

Proof step 1:
⊦ newref(r, st) → junkref(str, r, st)
Proof step 2:
⊦ newref(r, st) → junkrefs(str, r ', ty, st)

Rule argument

[LEMMAARG : junkref-newref, [r, st, str] → [r, st, str]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (r, st, str)]]