What was the most interesting part of the material for you?
I thought the proof at the end of the section was interesting, because I didn't quite see how the writer could see where to go with the proof. At the end, it suddenly made sense, and now I understand how to think about these kinds of proofs.
What was the most difficult part of the material for you?
At first I didn't see why we would ever need to use the Strong Principle of Mathematical Induction. But until now I've only seen exercises where it was simple enough to get from the assumption to the conclusion of the induction step. I didn't realize there would be proofs that would require more assumptions to reach the conclusion.
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