What? On Sat, Aug 8, 2015 at 10:11 PM yi lu wrote:

1

*Prelude> :t (:)* *(:) :: a -> [a] -> [a]*

*xs will at least be a list of list.*

On Sun, Aug 9, 2015 at 12:21 PM, RAJATKUMAR ZALA

...

wrote:

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Hello Friends,

I am totally new to Haskell. I am learning Haskell from a website on my own pace. From that site, I came to know about list in haskell and its type assignment. There is a confusable question on site. I am posting question here....

1. Given that the expression []:xs is well typed, which of the following is not a possible type assignment for xs?

Options:-

1. xs :: [Int] 2. xs :: [[Float]] 3. xs :: [[[Char]]] 4. xs :: [[[[Bool]]]]

If any friend know about it then please clarify me on it.

Thanks in advance

Rajatkumar Zala India _______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners

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