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Alph:Type, L:Alph*, n:. (Ln) = if n=0 nil else L @ (Ln-1) fi

By: UnivCD

Generated subgoal:

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


About:
alluniverselistequalifthenelsenatural_numbernilsubtract