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Proof step 26 from proof exists-twonew (conclusion)

⊦ ∃ r, r0. r ≠ r0 ∧ newref(r, st) ∧ newref(r0, st)

User applied rule insert spec-lemma

And obtained the following new goals

Proof step 1:
⊦ ∀ r. ∃ r0. r < r0
Proof step 25:
∀ r. ∃ r0. r < r0 ⊦ ∃ r, r0. r ≠ r0 ∧ newref(r, st) ∧ newref(r0, st)

Rule argument

[speclemmaarg: ,∀ r. ∃ r0. r < r0,[] → [],F,reference,,no-maximum]

Additional information

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