This isn't to say that HR is bad, on the contrary it's quite good. Be prepared to use Google though. How to Prove it is much more self-contained.
It is true that HR covers Polynomials and Corecursion. If I were you, I'd order both and use How to Prove it if you get stuck with The Haskell Road. They're both very inexpensive.
It is true that HR covers Polynomials and Corecursion. If I were you, I'd order both and use How to Prove it if you get stuck with The Haskell Road. They're both very inexpensive.