Haskell lists difference

Posted by user559354 on Stack Overflow See other posts from Stack Overflow or by user559354
Published on 2011-01-01T09:38:35Z Indexed on 2011/01/01 9:54 UTC
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haskell

I'm trying make a lists difference. Found directly prelude operator \\\\ that makes lists difference. But errors Not in scope: '\\\\' occurs. Here is my simple from command line interpreter:

Prelude>  ([1,2,3] ++ [5,6])   -- works like expected
[1,2,3,4,5,6]

prelude>  ([1,2,3] \\\\ [1,2])   -- erros occurs
<interactive>:1:11: Not in scope: "\\\\"

Thanks for explanation where I make a mistake.

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Haskell lists difference

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