<div>Hi Haskell-cafe.</div>
<div>I'm trying to use Haskell to program with Categories, but I didn't have seeing some works in this area nor references about this. Does someone can help me ins this subject?</div>
<div>Thanks in advance,</div>
<div>Vieira<br clear="all"><br>-- <br>"Para saber quantos amigos você tem, dê uma festa. <br>'Para saber a qualidade deles, fique doente!"<br></div>