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You can reach the person managing the list at beginners-ow...@haskell.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Beginners digest..." Today's Topics: 1. Understanding the function monad ((->) r) (Olumide) 2. Re: Understanding the function monad ((->) r) (Benjamin Edwards) 3. Re: Understanding the function monad ((->) r) (Olumide) ---------------------------------------------------------------------- Message: 1 Date: Tue, 21 Feb 2017 10:15:24 +0000 From: Olumide <50...@web.de> To: The Haskell-Beginners Mailing List - Discussion of primarily beginner-level topics related to Haskell <beginners@haskell.org> Subject: [Haskell-beginners] Understanding the function monad ((->) r) Message-ID: <08dd31b5-01c8-ad20-5d8d-39814b728...@web.de> Content-Type: text/plain; charset=utf-8; format=flowed Hello List, I am having enormous difficulty understanding the definition of the bind operator of ((->) r) as show below and would appreciate help i this regard. instance Monad ((->) r) where return x = \_ -> x h >>= f = \w -> f (h w) w Thanks, - Olumide ------------------------------ Message: 2 Date: Tue, 21 Feb 2017 10:25:02 +0000 From: Benjamin Edwards <edwards.b...@gmail.com> To: The Haskell-Beginners Mailing List - Discussion of primarily beginner-level topics related to Haskell <beginners@haskell.org> Subject: Re: [Haskell-beginners] Understanding the function monad ((->) r) Message-ID: <can6k4njv-h5zgrrbxkmfk0cevhmon6evsszf4vm-ypgkt_4...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" What is it that you are having difficulty with? Is it "why" this is a good definition? Is it that you don't understand how it works? Ben On Tue, 21 Feb 2017 at 10:15 Olumide <50...@web.de> wrote: > Hello List, > > I am having enormous difficulty understanding the definition of the bind > operator of ((->) r) as show below and would appreciate help i this > regard. > > instance Monad ((->) r) where > return x = \_ -> x > h >>= f = \w -> f (h w) w > > Thanks, > > - Olumide > > _______________________________________________ > Beginners mailing list > Beginners@haskell.org > http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.haskell.org/pipermail/beginners/attachments/20170221/ab6588f7/attachment-0001.html> ------------------------------ Message: 3 Date: Tue, 21 Feb 2017 11:34:41 +0000 From: Olumide <50...@web.de> Cc: The Haskell-Beginners Mailing List - Discussion of primarily beginner-level topics related to Haskell <beginners@haskell.org> Subject: Re: [Haskell-beginners] Understanding the function monad ((->) r) Message-ID: <366f7be1-330c-b446-d20d-fe8beee76...@web.de> Content-Type: text/plain; charset=utf-8; format=flowed On 21/02/2017 10:25, Benjamin Edwards wrote: > What is it that you are having difficulty with? Is it "why" this is a > good definition? Is it that you don't understand how it works? I simply can't grok f (h w) w. - Olumide > On Tue, 21 Feb 2017 at 10:15 Olumide <50...@web.de > <mailto:50...@web.de>> wrote: > > Hello List, > > I am having enormous difficulty understanding the definition of the bind > operator of ((->) r) as show below and would appreciate help i this > regard. > > instance Monad ((->) r) where > return x = \_ -> x > h >>= f = \w -> f (h w) w > > Thanks, > > - Olumide > > _______________________________________________ > Beginners mailing list > Beginners@haskell.org <mailto:Beginners@haskell.org> > http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners > > > > _______________________________________________ > Beginners mailing list > Beginners@haskell.org > http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners > ------------------------------ Subject: Digest Footer _______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners ------------------------------ End of Beginners Digest, Vol 104, Issue 11 ******************************************