1. The hardest part for me was keeping the elements of the group distinct in my mind from the elements of the quotient group. It's mostly a lot of notation to keep track of. Also, I don't really understand the example about Q/Z. It's hard for me to figure out just what those cosets look like.
2. It's interesting to me to see just how quickly we are learning about groups compared to rings. I guess it makes sense because it's later in the semester, but it feels like there is a lot more packed into each section than there was in the first few chapters.
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