Section 3.3 Due May 9

1. Everything was familiar until the bottom of page 72 when it started talking about a homomorphism of rings. Then I was totally lost. I didn't understand what theorem 3.12 was or the proof of it was talking about. Also it seems like it will be pretty hard to find an isomorphism or homomorphism between to rings.
2. I learned most of this in my linear algebra class, but with vector spaces, not rings. As of right now I'm having a hard time seeing a real world application for this section, interesting as it is. I guess we do create bijections all the time when we pair things up and correlate things.