[Haskell-cafe] Why purely in haskell?

Yu-Teh Shen shenyute at gmail.com
Wed Jan 9 09:40:55 EST 2008

I got question about why haskell insist to be a purely FL. I mean is
there any feature which is only support by pure?
I mean maybe the program is much easier to prove? Or maybe we can
cache some value for laziness.
Could anyone give me some more information about why haskell needs to be  pure.

Thanks a lot.

Shen, Yu-Teh

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