28 Nov
2017
28 Nov
'17
7:34 p.m.
+1 On Tue, Nov 28, 2017 at 2:22 PM, M Farkas-Dyck <m.farkasdyck@gmail.com> wrote:
On 28/11/2017, Andrew Martin <andrew.thaddeus@gmail.com> wrote:
instance (Applicative m, Monoid a) => Monoid (ReaderT r m a)
I believe there is good reason to prefer the first instance over the other two.
+1
This is also how the `Monoid` instance of `(->)` is defined. _______________________________________________ Libraries mailing list Libraries@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/libraries