[Haskell-cafe] permutations and performance

[John D. Ramsdell]

On Sat, Aug 16, 2008 at 5:28 PM, Henning Thielemann
<schlepptop at henning-thielemann.de> wrote:

> There is _one_ permutation with no elements, namely [], thus it must be
>        | n == 0 = [[]]

I see.

John