== Description == A monad transformer library, inspired by the paper /Functional Programming with Overloading and Higher-Order Polymorphism/, by Mark P Jones. == Hackage URL == http://hackage.haskell.org/cgi-bin/hackage-scripts/package/mtl == History == || HP Version || Shipped with || || 2009.2.0 || mtl 1.1.0.2 || || 2009.2.0.1 || mtl 1.1.0.2 || == Latest version == 1.1.0.2 == Version shipped with GHC 6.10.2 == 1.1.0.2 == Discussion ==