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--- math104-s22:s:jonathanwang [2022/02/16 13:47]
jnwang19 [Questions]
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jnwang19 [Homework]
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 ====== Questions  ======
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 . In Cantor's diagonalization argument, is the reason we can't take the sequence straight downwards because there may be repeated elements?
+. When Prof Zhou showed Cantor's diagonalization argument on 2/15, he produced a monotonically decreasing subsequence. However, I thought in general, although each sequence has a monotonic subsequence, it could be either increasing or decreasing. Thus, was the choice of monotonically decreasing just WLOG?

Lecture Notes