On 2009 Mar 12, at 22:54, Mark Spezzano wrote:
I was wondering what the best way to implement Natural number would be. Is there a package which already does this?

type-level on Hackage.

2.  Use the type
data Natural = Zero | Succ !Natural

One of the reasons people use type-level naturals is to get laziness; you've made this strict.  Is there a reason?

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brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery@kf8nh.com
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electrical and computer engineering, carnegie mellon university    KF8NH