Show transcribed image text 1. Prove that a complete subset of a metric space must be closed. 2. Prove that any sequence of R has a monotonic subsequence. Hint you might break this into two cases: first when there exists some subsequence which has no minimum element, and second when this condition does not hold]
1. Prove that a complete subset of a metric space must be closed. 2. Prove that any sequence of R has a monotonic subsequence. Hint you might break this into two cases: first when there exists some subsequence which has no minimum element, and second when this condition does not hold]





