big sry. this function was defined by the tutorial guys 2009/6/15 Chaddaï Fouché :

On Mon, Jun 15, 2009 at 6:46 PM, Nico Rolle wrote:

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Hi there

I'm trying to compile a code snipped that i've go from a tutorial which uses the function "force". But when I'm trying to compile it ghc reports an error that it couldn't find the defenition of force. my ghc verion is 6.10.3 Did they moved force out of Prelude in one of the latest updates?

As far as I know there never was a "force" function in the Prelude of Haskell98, this is probably a function specific to your tutorial, we could help more if we had the code snippet or at least the tutorial name.

By the way, while it's absolutely not inappropriate to post this question here, there is a haskell-beginner mailing list more suited to this kind of thing (you could also get very fast and friendly help from the #haskell channel on irc.freenode.net).

-- Jedaï