[Haskell-cafe] State monad is missing Applicative instance

Henning Thielemann schlepptop at henning-thielemann.de
Sun Mar 15 19:57:22 EDT 2009

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.

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