fabioyamate/programming-in-haskell — pull request #7 by fabioyamate (2014-08-06 05:17:00+00:00)
Title: Chapter 7: Higher-order functions

@carlosgaldino and @laurocaetano Finally I finished the chapter 7 exercises.

The exercise 7 took me some time because it wasn't work as I expected. But, once I did the evaluation steps it was easy to fix it.

The exercises 8 and 9, not sure if it was the best solution.