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Proof step 2 from proof newreflist-null-01 (previous step)

newref_list(n, st) = r ' + refs, jvmref ∈ refs, r ∈ newref_list(n, st) ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ jvmref ∈ refs → newref_list(n, st) ≠ refs

Rule argument

[crewrite-arg: newreflist-null , F , [refs, st, n] → [r ' + refs, st, n] ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ r ∈ r0 ' + refs ↔ r ≠ r0 ∧ ¬ r ∈ refs], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1])], [EXTRATERMS : (r ' + refs, st, n)]]