[Haskell-cafe] Why cannot i add the `let` declaration ?

[Andrew Coppin]

Szekeres István wrote:
>
>
> On Sat, Jan 30, 2010 at 8:39 AM, zaxis <z_axis at 163.com 
> <mailto:z_axis at 163.com>> wrote:
>
>     fac n = foldr (*) 1 [1..n]
>
>
> fac n = product [1..n]
>
> ;)

fac n = product [2..n]

:-D