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At: lpower alt 1 2 2 1

1. Alph: Type
2. L: Alph*
3. n:
4. 0 < n
5. (Ln-1) = if n-1=0 nil else L @ (Ln-1-1) fi
6. n = 0

(Ln) = (L @ if n-1=0 nil else (Ln-1-1) @ L fi)

By: SplitOnConclITE

Generated subgoals:

17. n-1 = 0
(Ln) = (L @ nil)
27. n-1 = 0
(Ln) = (L @ (Ln-1-1) @ L)


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equallistifthenelsesubtractnatural_number
niluniverseintless_than