On Wed, Mar 25, 2015 at 10:02 AM, Shishir Srivastava < shishir.srivastava@gmail.com> wrote:
Reading about Monoids it seems they derive a lot on the algebraic structures of 'Groups' ?
A monoid is a semigroup with an identity element, and as such inherits much of its behavior from semigroups. For historical reasons, a Haskell Monoid is not based on a notional Haskell Semigroup. There are packages that add semigroups and other algebraic structures, and even alternative Preludes that provide a reasonably complete set of algebraic structures. Every so often you'll see bikeshedding in the Haskell community over whether the default Prelude should provide some or all of these. :) -- brandon s allbery kf8nh sine nomine associates allbery.b@gmail.com ballbery@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net