[Haskell-cafe] interval arithmetic for integers?

[Donald Bruce Stewart]

nicolas.frisby:
> I'm looking to not reinvent the wheel.
> 
> Is there an existing package that supports interval arithmetic on
> integers (or more)? A possible complication is that I'm hoping to
> include open intervals such as (GreaterEqThan 3).
> 
> If there's not a package to go with, any pointers on the appopriate
> rules for this stuff? I started coding up multiplication and decided
> it was harder than I first thought...

Anything here?
    http://haskell.org/haskellwiki/Libraries_and_tools/Mathematics

-- Don