Non-determinism, backtracking and Monads

[Iavor Diatchki]

hello,

you might also want to take a look at the "new monad library" i am working
on. it is based on the old one, but does some things slightly different. 
one of the differences is the "nondeterminism transformer"
whose implementation is inbetween lists and continuations.  it also
resembles resumptions quite a bit.  i came up with this particular
implementation but i would not be surprised if people already know about
it.  it is also quite simillar to the "term implementation" of the
backtracking transformer described by ralf heinze in his "deriving monad
transformers" paper.  i would also be interested in general comments on
the library.  it is in the haskell cvs repository in
fptools/libraries/monads  (you need to check out fpconfig frist).

bye
iavor