Problems for Chapter12 - Monad Laws
Some problems for Chapter 13 - Writer, I hardly know her
Problems for Chapter 13 - Writer, I hardly know her.
Problems for Chapter 13 - Reader, ugh not this joke again
Problems for Chapter 13 - Tasteful State Computations
Problems for Chapter 13 - Error Error on the Wall
Problems for Chapter 13 - Some Useful Monadic Functions
Merge remote-tracking branch 'upstream/master'