5.4 through 5.4.1, due November 24

This section was really interesting and I almost just kept reading. The only part that I didn't quite understand was example 5.4.3, it didn't seem like it was really explained. It's cool to see an area where number theory is applied because there is so much of the class that is purely abstract in my mind and I sometimes can't think of a context where it might be used.