[Haskell-cafe] Monoid wants a (++) equivalent

[Edward Kmett]

I'm rather fond of the (<>) suggestion, but would be happy with anything
better than mappend! ;)

-Ed

On Wed, Jul 1, 2009 at 8:56 AM, Brent Yorgey <byorgey at seas.upenn.edu> wrote:

> On Wed, Jul 01, 2009 at 12:00:50AM -0400, ajb at spamcop.net wrote:
> > G'day all.
>
 >
> > On Tue, Jun 30, 2009 at 08:02:48PM -0400, Daniel Peebles wrote:
> >
> >> But we don't want to imply it's commutative either. Having something
> >> "bidirectional" like <> or <+> feels more commutative than associative
> >> to me.
> >
> > Quoting John Meacham <john at repetae.net>:
> >
> >> Not really, think of '++', which doesn't commute but is visually
> >> symmetric, or Data.Sequence.<>, or the common use of <> to mean
> >> concatination in pretty printers.
> >
> > Other good examples are && and ||.
>
> ..wha?  But those ARE commutative.  Unless you mean with respect to
> strictness?
>
> -Brent
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