Is there a known deconstruction of the list/backtracking applicative functor (AF)? If I decompose the list type into pieces (Maybe, product, composition), I think I can see where the ZipList AF comes from, but not the list/backtracking AF. Is there some construction simpler than lists (non-recursive) that introduces cross products?
Thanks, - Conal
_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe