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### MathJax basic tutorial and quick reference

(Deutsch: MathJax: LaTeX Basic Tutorial und Referenz) To see how any formula was written in any question or answer, including this one, right-click on the expression it and choose "Show Math As > TeX ...
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### How to ask a good question.

How to ask a good question. This thread has advice on the following aspects of writing a good question on this site. Each item in this list links to an answer below about that specific aspect of ...
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### List of Generalizations of Common Questions

Bill Dubuque raised an excellent point here: Coping with *abstract* duplicate questions. I suggest we use this question as a list of the generalized questions we create. I suggest we categorize ...
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### Coping with abstract duplicate questions.

Any longtime reader cannot help but notice that we get many abstract duplicate questions, e.g. this recent question on partial fraction computation, which is not essentially different from many other ...
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### Vote early, vote often

I would like to echo a post that Scott Morrison made on Tex.SE. I think this is definitely something we are experiencing here on Math.SE. A link to the post here, and the text of the post: "I'm a ...
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### What is the purpose of this site?

What is (and what should be) the purpose of math.SE? As far as I can say, various users have different views on this question. Some users view it as a repository of knowledge. Some users approach it ...
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### Do we want tag warnings, and for which tags?

(Inspired by this meta.academia.SE discussion) A new feature has been introduced this summer, tag warnings. These warnings are meant to provide users with just-in-time information to help them ...
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### Under what circumstances is it appropriate to delete a question that has received a good answer?

I would like to have a discussion about the following question: When is it appropriate to delete a question which has been closed as "missing context or details," but which has generated ...
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### Is it appropriate to downvote answers for the sake of deleting a question?

I have noticed that sometimes answers are downvoted in order to cause the automatic deletion of a question by the community user. In particular, there are closed questions with $1$-point answers - ...
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### Would a tag for “check-my-proof” questions be useful?

I am aware that it is probably better not to have too many meta-tags such as homework, soft-question, big-list or reference-request. Despite of this I'd like to ask other MSE users, whether they would ...
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### Announcing a third-party search engine for Math StackExchange.

Approach0 is a math-aware search engine. “Math-aware” means you can add math expression(s) as some of your keywords to have search engine help you find similar expressions. Check out here: https://...
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### Are we too trigger-happy about deleting (relatively) new posts?

I was directed just now to a post with the following abbreviated time-line: Question was posted 21 hours ago Question was closed as "unclear what you are asking" 19 hours ago Question was deleted by ...
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### Downvoting new user's questions

Quite recently I saw a few posts of new users of this site (which were just joining MSE) which were on a very basic level and indeed contained some mistakes or even basic mathematical ...
Sometimes, proof-verification questions ask for verification of a valid and overall solid proof (some examples: What is the $\dim L(X,Y)$?, Prove \$(\overline{A \cap B}) \subseteq \overline{A} \cap \...