<div dir="auto">I'm not sure I would label it a bad decision, but the concerns here make sense.</div><br><div class="gmail_quote"><div dir="ltr">On Mon, Nov 12, 2018, 5:16 AM Jon Fairbairn <<a href="mailto:jon.fairbairn@cl.cam.ac.uk">jon.fairbairn@cl.cam.ac.uk</a> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Daniel Cartwright <<a href="mailto:chessai1996@gmail.com" target="_blank" rel="noreferrer">chessai1996@gmail.com</a>> writes:<br>
<br>
> ANum seems to be just Data.Monoid.Ap.<br>
> Also, I can see not wanting to worsen the error messages, though it is<br>
> worth pointing out that we already have a Monoid instance with the same<br>
> semantics, and a similar potential for confusing error messages.<br>
<br>
The existence of a previous bad decision doesn’t seem to me to<br>
be a good reason to make another one.<br>
<br>
-- <br>
Jón Fairbairn <a href="mailto:Jon.Fairbairn@cl.cam.ac.uk" target="_blank" rel="noreferrer">Jon.Fairbairn@cl.cam.ac.uk</a><br>
<a href="http://www.chaos.org.uk/~jf/Stuff-I-dont-want.html" rel="noreferrer noreferrer" target="_blank">http://www.chaos.org.uk/~jf/Stuff-I-dont-want.html</a> (updated 2014-04-05)<br>
<br>
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</blockquote></div>