<div dir="ltr">This led me to look up <a href="http://hackage.haskell.org/package/base-4.10.0.0/docs/src/Data.Function.html#on">the definition of on</a> and discover that punctuation can be used as a variable name for an operator!</div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Dec 4, 2017 at 11:51 AM, Baa <span dir="ltr"><<a href="mailto:aquagnu@gmail.com" target="_blank">aquagnu@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Oh, yes! Exactly, thanks to all!!<br>
<div class="HOEnZb"><div class="h5"><br>
> Hi!<br>
><br>
> I think you're looking for Data.Function.on:<br>
> <a href="http://hackage.haskell.org/package/base-4.10.0.0/docs/Data-Function.html#v:on" rel="noreferrer" target="_blank">http://hackage.haskell.org/<wbr>package/base-4.10.0.0/docs/<wbr>Data-Function.html#v:on</a><br>
><br>
> On 04/12/2017, Baa <<a href="mailto:aquagnu@gmail.com">aquagnu@gmail.com</a>> wrote:<br>
> > Hello, All!<br>
> ><br>
> > Does Haskell have some "short-form" for such call: `f (g x) (g x)`,<br>
> > for example:<br>
> ><br>
> >   compare (snd x) (snd x)<br>
> ><br>
> > Looks like combinatory logic or `ap` but not exactly...<br>
> ><br>
> > ===<br>
> > Best regards, Paul<br>
> > ______________________________<wbr>_________________<br>
> > Beginners mailing list<br>
> > <a href="mailto:Beginners@haskell.org">Beginners@haskell.org</a><br>
> > <a href="http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners" rel="noreferrer" target="_blank">http://mail.haskell.org/cgi-<wbr>bin/mailman/listinfo/beginners</a><br>
> ><br>
> ______________________________<wbr>_________________<br>
> Beginners mailing list<br>
> <a href="mailto:Beginners@haskell.org">Beginners@haskell.org</a><br>
> <a href="http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners" rel="noreferrer" target="_blank">http://mail.haskell.org/cgi-<wbr>bin/mailman/listinfo/beginners</a><br>
<br>
______________________________<wbr>_________________<br>
Beginners mailing list<br>
<a href="mailto:Beginners@haskell.org">Beginners@haskell.org</a><br>
<a href="http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners" rel="noreferrer" target="_blank">http://mail.haskell.org/cgi-<wbr>bin/mailman/listinfo/beginners</a><br>
</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>Jeff Brown | Jeffrey Benjamin Brown</div><div dir="ltr"><a href="https://msu.edu/~brown202/" style="font-size:12.8px" target="_blank">Website</a>   |   <a href="https://www.facebook.com/mejeff.younotjeff" style="font-size:12.8px" target="_blank">Facebook</a>   |   <a href="https://www.linkedin.com/in/jeffreybenjaminbrown" style="font-size:12.8px" target="_blank">LinkedIn</a><span style="font-size:12.8px">(spammy, so I often miss messages here)   </span><span style="font-size:12.8px">|</span><span style="font-size:12.8px">   </span><a href="https://github.com/jeffreybenjaminbrown" style="font-size:12.8px" target="_blank">Github</a><span style="font-size:12.8px">   </span></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
</div>