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Reopened, Re-closed (by a mod), and Reopened again with context edit reinstated Please consider reopening Any criteria for a category to have all connected limits?. This is a very natural question about whether there is an analogue of certain well-known basic theorems in category theory in a less well-known context. The context in the original question was ...


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For answers to low-quality questions It is explained in Enforcement of Quality Standards that (and why) users answering low-quality questions should (politely!) be reminded of the policies regarding quality on this site. The following comment template was suggested by Xander Henderson: This question seems not to meet the standards for the site. Instead of ...


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Reopened, reclosed, reopened again, closed once again, and reopened once again Please consider reopening this Question, which was closed for lack of context. Yet the original opening paragraph gives the following context: I have a young group of kids (30) playing soccer and they need to be put into 6 teams of 5 players for each round of matches. All 6 teams ...


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Undeleted (still closed), Deleted, Undeleted, Deleted again, Undeleted again, and yet deleted again, and locked – permanently! – by moderator Xander Henderson The question What are sufficient conditions for a number to be irrational or transcendental? was closed as a duplicate of Proving irrationality and then deleted (along with answers with scores of $+12,+...


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Undeleted I'd like to tentatively nominate A structural view to the power set axiom: Is this axiom really justifiable? for undeletion (admission: I have an answer there). It was a fine question. Re: the "tentatively" above, I'm not actually sure that undeletion is possible/ethical: at a glance it looks like what may have happened is that the OP ...


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Undeleted RKHS of functions vanishing at single point Asker deleted the question soon after receiving an answer. The question is homework-like, but the asker showed a decent effort in my view. I didn't vote to undelete since the answer is mine, and I wanted to see what others think.


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Undeleted https://math.stackexchange.com/a/3980921/43608 This is a deleted new answer to an old question (from february 2019), by a user that has been on MSE for 1 year and 10 months, but does not seem to have questions or answers yet. The deleted answer is short, arguably too short, but would be at least a good hint in the correct direction (it was for me, ...


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DELETED I want to know why the reason for closure of this question has been given as: Questions about choosing a course, academic program, career path, etc. are off-topic. Such questions should be directed to those employed by the institution in question, or other qualified individuals who know your specific circumstances. I do not see any reason for ...


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Undeleted Please undelete Functional Analysis: Finding finite functions over different norms as the question asker self-deleted his/her own question one day after receiving an answer.


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Everyone is so modest that they're giving semi-selfish reasons like: It's for my ego (half joking). I think teaching is fun. It helps me learn. I want to give back to the community that answered my questions. Those are all true, but somebody just needs to say the real reason: it's for the greater good. I post on math.stackexchange because helping people ...


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Reopened Please consider reopening Is there a metrizable topology on tempered distributions for which sequential convergence is pointwise?. This question was originally unclear but the asker has clarified what they meant. The question was also difficult to understand due to (I assume) a language barrier combined with some imprecise phrasing, and I've ...


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Reopened Please consider reopening Looking for a Simple Proof of the Divergence of the Prime Harmonic Series. It is a natural question of wide interest and has a very clear implied context, of a teacher who wishes to present an elementary proof of a famous theorem to calculus-level students. It is not clear to me what additional context the close voters ...


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Reopened I asked a question about an identity involving large uniform random numbers here: Prove that $\lim_{m \to \infty} (\lceil m U \rceil -mU ) \sim U(0,1)$. The question is part of a larger theme of questions around proving a general result about point processes. I intend to write a paper on this topic and want to link these questions in the paper. It ...


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undeleted, reopened Please undelete the following question: Union of closed convex sets The question and (my - to be fair) answer was highly upvoted. The question was closed/deleted for lack of context. I edited the question to include some context: The claim seems to be true in situations one can immediately think of. It is one example of a claim on convex ...


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Undeleted. Requesting to undelete "Trace identity for symmetric matrix". The OP responded to some clarifying comments by me and Ben Grossmann, but after I posted my answer, they deleted their comments as well as the entire question.


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Misused tag problem-solving Do you need to solve a problem? That's what this site is all about, but please, don't use the tag problem-solving to tell us that. Use that tag only if you have a specific type of problem and you are asking for a way of thinking needed to solve those problems in general. Do you need to solve a problem? That's what this site is ...


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Reopened Three days ago, Asymptotic expansion of $\sum_{k=1}^n {n \choose k} (-1)^k \frac 1 {1-x^k} $ received three close votes due to lack of context. Since then, the author added clarification and context. Yesterday, there were two close votes arising from a review, and those closed the question. However, I think that this poster has shown a decent effort ...


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Reopened The author of Generating function of the number of permutations of length n with exactly k fixed points has added the source of the question and the solution for half of the question. I think that the question has an interesting answer and I would like to post it. I would like to see this question reopened.


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Undeleted Please consider undeleting this meta post. I don't have enough reps to see the post now, so I might miss the reason why the OP deletes the post. But the question they ask are quite legit and there are some useful discussion in the comment.


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Reopened Please consider reopening this question Find the range of values of $θ$, such that $θ\in[0,2π]$ for which $(\cosθ,\sinθ)$ lies inside a triangle this question is completely understandable as all the equations are now written in math JAX also it might have happened that people who were unable to solve the question have reported it. This question is ...


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Reopened Please reopen https://math.stackexchange.com/q/4074358. I have also voted for closing the question as a duplicate but retracted the vote after the question was edited. It is clear from the content of the edited question that its issue was a search for an error in the OP solution (and not for a correct way of solving the problem). In this sense it ...


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Undeleted and reopened Please consider undeleting and reopening Is an ideal finitely generated if its radical is finitely generated?. This is a very natural question to which there are no immediately obvious counterexamples, and it has received a couple nice examples in answers. It seems to me that this is exactly the sort of question that this site was ...


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Re-opened. Please reopen: A Basic Limit From Exponentials I believe this is not a duplicate of How does one prove that $e$ exists? which was why it was closed. The question from the first link asks why the limit $\ \displaystyle\lim_{x \to 0} \frac{2^x-1}{x}\ $ exists. Whereas the question from the second link asks to prove that there exists a number $a$ ...


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Undeleted, deleted (by Community user, as "abandoned") Please undelete Group theory question of red and blue blocks as the question asker has self-deleted his/her own question a few hours after receiving an answer from a trusted user.


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Undeleted An answer of mine to Resources, references, or examples for logics with finitely many sentences was deleted via review. May I kindly ask to reconsider this deletion. My answer relates to the observation that finite problems are always trivial in the context of computational complexity (see, e.g., the accepted answer here). The OP requested some ...


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I propose the following word Kindly for inclusion in the HNQ block-list. Please up-vote if you agree with the inclusion. Down-vote if you disagree with the inclusion.


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Closed as duplicate Please close this as a duplicate of this. The close-vote review is completed and still missing one vote.


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This one: https://math.stackexchange.com/review/late-answers/1522462 Angle 30 can be constructed, through drawing an equilateral triangle, constructing angle 120, bisecting it multiple times and getting angle 30. Is it possible to contruct 3 degrees using geometric theorems and how? The solution being reviewed reads essentially "A pentadecagon is ...


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