[Haskell-beginners] why is this type wrong

[Kim-Ee Yeoh]

On Tue, May 12, 2015 at 1:42 PM, Roelof Wobben <r.wobben at home.nl> wrote:

-- | The main entry point.
> last' :: [a] -> a
> last' [x] = x
> last' (x:xs) = last xs


Notice that the last line does no recursion: it invokes the Prelude's
definition of last.

-- Kim-Ee
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