Hi A quick Hoogle for ! : http://haskell.org/hoogle/?hoogle=! Gives the first answer as: http://www.haskell.org/haskellwiki/Keywords#.21 If that isn't clear, someone should expand on it or give further links to useful resources. Thanks Neil 2009/3/25 Harsh Verma :

I have seen ! added in front of many values, is it related to strict evaluation? Please elaborate on it. TIA, gimli

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