[Haskell-cafe] whine and solution about programmers not respecting documentations

[Max Rabkin]

On Tue, Jun 29, 2010 at 11:46 AM, Ketil Malde <ketil at malde.org> wrote:
>  deleteBy :: (a -> Bool) -> [a] -> [a]
>
> I don't think there would be any doubt what 'deleteBy (<= 5) [1..10]'
> would do. And I just don't see what the requirement for an equivalence
> relation buys you.

Your deleteBy is (filter . not), isn't it?

--Max