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Proof step 5 from proof newrefs-rec-01 (conclusion)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
⊦ newref_list(n, st) = newref(st) ' + newref_list(n - 1, st[newref(st) -- 0 ', noval]), n = 0

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ 0 < n ↔ n ≠ 0], [CSIMPSEQ : ⊦ r + refs = r ' + refs], [CSIMPSEQ : ⊦ n -1 = n - 1])]]