[Haskell-beginners] order of monad transformers

Michael Mossey mpm at alumni.caltech.edu
Tue Nov 3 21:29:46 EST 2009

How does one consider the best ordering of monad transformers? For example, 
if I'm combining ErrorT, StateT (or State), and WriterT (or Writer)? But 
not just this specific example---what principles can one consult to 
determine ordering?


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