What was the most difficult part of the material for you?
I had a hard time understanding why the crossing of two denumerable sets is also denumerable. It seems like that's kind of like taking infinity times infinity. But after looking at the proof it makes more sense.
What was the most interesting part of the material for you?
I think it's way cool that we can look at numerical equivalence for sets that are infinite. It kind of reminds me of using l'Hospital's Rule to simplify limits with infinity on top and bottom. It seems like you're sort of comparing the "size" of the top and bottom of the limit.
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