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Proof step 3 from proof newrefs-one-01 (previous step)

newref_list(1, st) = newref(st) ' + newref_list(0, st[newref(st) -- 0 ', noval]), newref(st) ∈ newref_list(1, st) ⊦ newref_list(1, st) = newref(st) '

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ newref_list(0, st) = []

Rule argument

[crewrite-arg: newrefs-zero, F, [st] → [st[newref(st) -- 0 ', noval]]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refs + [] = refs], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1])], [EXTRATERMS : (st[newref(st) -- 0 ', noval])]]