That should gave been state is a type that takes a state and returns a state tupled with a value. The chapter in yaht is 9.3 On 24 May 2011 08:50, "Benjamin Edwards" wrote: I highly recommend reading some of the tutorials that show how to derive the state monad. The type of state is really a function that takes a parameter and returns a state tupled with a value. Yet another haskell tutorial has quite a good chapter on this.

On 24 May 2011 08:40, "Sean Perry" wrote:

I am trying to understand ...