[Haskell-cafe] IO is not a monad

<troll> Prelude> let f .! g = ((.) $! f) $! g Prelude> let f = undefined :: Int -> IO Int Prelude> f `seq` 42 *** Exception: Prelude.undefined Prelude> ((>>= f) . return) `seq` 42 42 Prelude> ((>>= f) .! return) `seq` 42 42 </troll> Regards, Yitz