Who needs Ord for Sets and Maps anyway?

[ajb at spamcop.net]

G'day all.

Quoting Jean-Philippe Bernardy <jeanphilippe.bernardy at gmail.com>:

> It is also much more inline with the
> haskell style. See for example, Num class:
> (+) :: a -> a -> a

A lot of people don't like this type, especially for multiplication.  It
makes implementing types based on vector spaces much more complicated,
for example.

Cheers,
Andrew Bromage