Alexis Read wrote: > For those that are having trouble with arrows formalisms > http://www.haskell.org/arrows/ > http://www.haskell.org/arrows/biblio.html#Hug00 > Additionally if you follow the links off this you should find a GUI > toolkit based on arrows. Thanks for the links. But, could somebody please explain if the arrow formalism from the category theory actually have anything to do with the Arrow basis for Tunes?