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Proof step 15 from proof exists-twonew (previous step)

jvmref < r, r < r0, jvmref < r0, ∀ r. ∃ r0. r < r0, ∀ r0. r0 ∈ st → r0 < r ⊦ r = r0, r0 = jvmref, newref(r, st) ∧ (r0 -- sk ∈ st → r1 ≠ r0)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ newref(r, st) ↔ r ≠ jvmref ∧ (∀ rk. rk ∈ st → rk .ref ≠ r)
Proof step 14:
jvmref < r, r < r0, jvmref < r0, ∀ r. ∃ r0. r < r0, ∀ r0. r0 ∈ st → r0 < r ⊦ r = r0, r0 = jvmref, r ≠ jvmref ∧ (∀ rk. rk ∈ st → rk .ref ≠ r) ∧ (r0 -- sk ∈ st → r1 ≠ r0)

Rule argument

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

Additional information

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