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<DIV><SPAN class=547520819-27012006><FONT face=Arial size=2>Dear
Haskellers,</FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial size=2>since this is my
first post, </FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006> <FONT face=Arial
size=2>"Hello all"</FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial size=2>I have a problem
with a function taken from class Arrow.</FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006> <FONT face=Arial
size=2>arr :: (b -> c) -> a b c</FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial size=2>To build my own
arrow, i need to distinguish between different kinds of b or
c.</FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial size=2>For instance, if
b has the form (d,e), i want to construct something different as when
having form (d,e,f).</FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial size=2>Could I get a hint
how to express my needs, please!</FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial size=2>Many thanks in
advance</FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial size=2>Sven
Biedermann</FONT></SPAN></DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=547520819-27012006><FONT face=Arial
size=2></FONT></SPAN> </DIV></BODY></HTML>