liftM2 (/) sum length. Anyway, the closest you can get in Haskell is
something like this, using the infix expressions of Ken Shan and Dylan
Thurston<http://www.haskell.org/pipermail/haskell-cafe/2002-July/003215.html>
Hmm.. that might be decent if you added rules to pretty-print them in
lhs2tex. The src code would be slightly messy but the formatted code would
be very clean. And it opens the doors for other binop decorators.
Interesting idea.
I finally get my lhs2tex set up and put together a better example
of what I was talking about:
http://www.thenewsh.com/%7Enewsham/Hats.pdf
Though I don't know if you can coax lhs2tex into accepting something like
%format -:liftM2 (+):- = "\widehat{+}"
Tim Newsham
http://www.thenewsh.com/~newsham/
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