So is a congruence class a ring? It seems to have the same properties.
I DO NOT GET THE ADDITION AND MULTIPLICATION TABLE on pg. 43
2) I guess I just don't really understand what makes a ring distinct or different from things that we have learned before because it has the same properties. It sort of seemed like they put a bunch of random stuff that I have learned together in this chapter and I'm still not really sure what a ring is, but hopefully it will make more sense tomorrow in lecture.
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