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List:       haskell
Subject:    [Haskell] signification of RWS and RWST
From:       Wolfgang Jeltsch <wolfgang () jeltsch ! net>
Date:       2005-05-30 12:57:32
Message-ID: 200505301457.33017.wolfgang () jeltsch ! net
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Hello,

why do we have RWS and RWST in the libaries?  Isn't RWS r w s a isomorphic to 
ReaderT r (StateT s (Writer w a)) and RWST r w s m isomorphic to
ReaderT r (StateT s (WriterT w m a))?

Best wishes,
Wolfgang

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