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Proof step 18 from proof newref-02 (previous step)

⊦ r ≠ jvmref ∧ (∀ rk. rk = r0 -- sk ∨ rk ∈ st → rk .ref ≠ r) ↔ r ≠ r0 ∧ newref(r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ newref(r, st) ↔ r ≠ jvmref ∧ (∀ rk. rk ∈ st → rk .ref ≠ r)
Proof step 17:
⊦ r ≠ jvmref ∧ (∀ rk. rk = r0 -- sk ∨ rk ∈ st → rk .ref ≠ r) ↔ r ≠ r0 ∧ r ≠ jvmref ∧ (∀ rk. rk ∈ st → rk .ref ≠ r)

Rule argument

[crewrite-arg: newref, F, [st, r] → [st, r]]

Additional information

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