[Haskell] same type multiply implementing a class

Daniel Mahler dmahler at gmail.com
Wed Mar 14 22:23:45 EDT 2007

Is there any way for the same type to implement a typeclass multiple ways.
The particular situation I  have in mind is composing
two monad trasformers of the same type, say reader monad.
In pure theory one reader can lift through another,
but in an implementation one gets a name clash.


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