Tagging - 2014-09-12

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Martin Sleziak

6:30 AM

Wouldn't completing-square a better name for a tag than complete-square?

I have noticed cosets tag among the new tags.

It seems that this tag had already been created in the past and then it was removed.

Now there is a new question having this tag: math.stackexchange.com/questions/927593/…

I did not find whether this tag was discussed on meta or in chat.

1 hour later…

Martin Sleziak

7:49 AM

I don't think that the tag sub-sequences is really needed.

At the moment it contains only one question:

Q: A question from the proof of : Every sequence has a monotone subsequence

Lemma: Every sequence $\{ x_n \}$ in R has a monotone subsequence. Proof: Let us call a positive integer $n$ a "peak of the sequence" if $m > n \implies x_n > x_m$ i.e., if $x_n$ is greater than every subsequent term in the sequence. Suppose first that the sequence has infinitely many peaks,...