Re: [Haskell-cafe] State monad is missing Applicative instance

Peter Verswyvelen schrieb:

ouch, I was confusing the mtl and transformers package...

so basically transformers is a better replacement for mtl?

or does mtl offer things transformers does not?

transformers and monad-fd are cleanly separated, transformers is Haskell 98 and monad-fd uses functional dependencies.