Re: [Haskell-cafe] fromInteger for Lists

Paul Keir schrieb:

There's nothing better than making a data type an instance of Num. In particular, fromInteger is a joy. But how about lists?

http://www.haskell.org/haskellwiki/Num_instance_for_functions http://www.haskell.org/haskellwiki/Type_classes_are_for_reusability