# Tag Info

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Mod-deleted This question has recently been undeleted. I have to admit that I'm stunned. There is nothing good about this Q&A: the questions consist a homework dump from a timed online quiz; they have apparently been copy-pasted here without any effort done to even format them correctly (the sentence "Answer both parts for full credit" is ...

16

If you voted to close a question and if are asked whether or not it should be reopened, there is no reason for you not to reevaluate it. And if it turns out that the flaws that made you vote for closing it remain there, then go ahead: vote that it should not be reopened. There is nothing wrong with that.

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Undeleted I would like this question to be undeleted. It was voluntarily removed by the author although a correct answer was given. Given the OP's history on MSE, it seems the user asks questions, gets answers, and then deletes the questions. I do not think this should be permitted, as some user in the future may have the same question as the OP, but a ...

11

[REOPENED] I would like to request Motivation for the Tensor Product be reopened as I do not think it is a duplicate of and Motivation for Tensor Product. The latter question asks "We already have Direct Product, Semi-direct products, so after all why do we need Tensor Product?", which is a question about why multilinearity is in general useful. The ...

11

Reopened This is on the chopping block again: Is zero a prime number? The question was the subject of this meta discussion: How to prevent the loss of excellent answers to poor questions. which resulted in reopening. (Disclosure, I have a solution on the question. I feel the question and solutions are worth fighting for, in this case.) The reason this ...

10

[UNDELETED] Request for undeletion, or explanation of deletion: https://math.stackexchange.com/a/898051/, a "hint" answer that does substantial work toward solving the differential equation in the question Differential equation $\sin \theta \frac{dr}{d \theta}+r\cos \theta =\tan \theta,0<\theta<\pi/2$. The answer received comments that it should be ...

10

Reclosed Please consider re-closing this question : Is it to the students' advantage to learn the language of infinitesimals? On the one hand, the question is primarily about pedagogy, which would be a better fit for a different SE site. But, more importantly, the question is essentially a request to engage in a discussion about whether there is an "...

10

Reopened, Put on hold, deleted, undeleted, deleted, re-undeleted, re-deleted, undeleted again, deleted again, locked, unlocked and reopened Please consider reopening What digits is the "number" $\infty$ composed of?. This question was closed as "not about mathematics". Obviously, this question is based on some misconceptions of what infinity is, ...

9

[REOPENED] (Also, as pointed out by Asaf in a comment below, this was a duplicate request. My apologies for the inadvertent dupliaction.) The question "If every convergent subsequence converges to a then so does the original sequence" should be reopened (in my opinion). It is a request for clarification/explanation of an argument from a text. It was ...

9

The review queue shows only things that you can act. Since you already voted to reopen, you won't see it. If you have 10k points you can access the global review history, and see if others have acted on this reopening request or not. You can use this link to see what's going on: https://math.stackexchange.com/review/reopen/283217

9

I have had a number of cases where the question was closed because it was badly phrased but I thought I could understand the intent and could provide a good answer. I posted a comment asking that the question be reopened so I could answer and had no success. I suspect that most people do not look at closed questions so accumulating enough votes to reopen ...

8

Yes, in general one should wait. Browsing this list https://math.stackexchange.com/review/reopen/history of reviews (the link will not work for everybody, sorry) one will notice that there are plenty of questions each day that get some reopen vote and of which somebody thus thought they have a case for being reopened. If each of them was posted in that ...

8

Closed, re-opened Solve for $x^2 + 7x +1 = 3n(x^2 + x +1), n \in \Bbb{Z}$ My this question was put on hold as off-topic because it lacks context. It also gives a link to how I can add context. The link gave the following points Include your work My response - I answered that question which I asked. I got a few hints from the comments which helped me. ...

7

[REOPENED] This question was closed as a duplicate, but the question specifically asks not for a proof (which the OP knows) but, instead, for some intuition behind successful strategies for constructing such proofs - something that is not addressed at all in the proposed duplicate. Probably there is a good chance of further helpful answers appearing if it ...

7

Reopened Request for reopening: What would change in mathematics if we knew $\pi+e$ is rational? It was closed as unclear last March. I edited it to try to make it clear, and there are comments that (to me) show that the question can be answered reasonably. I voted to reopen, then it went through review and left with 3 selecting "leave closed."

7

Someone could understand it well enough to answer it, so surely someone will be able to make it clear. If it is literally impossible to make the question clear, then it has no place on this site. Otherwise, then the question should be edited first and only then reopened. It makes no sense to reopen it when it is still unclear; that somebody managed to read ...

7

Reopened I edited the question Variable in upper bound of sum when it had 4 votes to close, and I also posted a rather detailed answer (which the OP accepted). It got "put on hold as unclear what you're asking" even though I think it's now quite clear and on-topic. Can the question be re-opened?

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Reopened This meta question has been closed as a duplicate: Can we please STOP closing and deleting old posts with answers? However, it is not a duplicate. The older question is about deleting questions with answers, which is a more general question. (Indeed, it starts with the phrase "A few deays ago I posted an answer...") The newer question is about a ...

7

This is because it is possible that a question can have five reopen votes from users with above 10k reputation even whilst it remains deleted. An old post on the main meta explains some reasons why this is allowed, so it is not a system bug. However, it is not possible to vote to close a question when it has already been deleted. As you have probably ...

6

[REOPENED] Becoming Better at Math was closed on the grounds of being primarily opinion-based. It is community wiki with soft-question and advice tags. Though there are many possible answers (hence the CW), I do not find the question to be opinion based, as it is a call for guidance from experienced mathematics students, who in general do not disagree ...

6

I imagine people voted to close since the question would be seen by many to be off topic, I think that it is certainly borderline. However, I think that it is valid and appropriate for the site. Most questions are related to specific mathematical problems, in the sense of proving things or answering questions, and so people forget that questions about how ...

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Reopened This question was closed as "off topic". It was originally just a statement of a problem, but not the OP has added some more detail and motivation. So I believe that it should be reopened.

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[REOPENED] Linear Transformation on $\mathbb{R}^6$ was closed for missing context (also by me) because the OP showed no work. This was changed in a comment to my answer. I have copied the relevant comment (of the OP) into the question body to salvage it. Maybe someone TeXifies the image? (Can't be bothered right now)

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Reopened Request to reopen this question: If the map induces identity on all homotopic groups then it is homotopic to identity It appears that the question was closed because the closers did not read it carefully: At least the first close vote stemmed from the incorrect assumption that the question was about the proof of Whitehead's theorem. Even in its ...

6

I would call the new thread [current] rather than [new version], and identify the old one as [archive 1]. Then people will get used to looking at the "current" thread for new material. The thread names can be amended at each cycle where a new thread needs to open. The suggestion in @quid's comment is a significant improvement: rather than simply numbering ...

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The question as it was asked did not provide any context whatsoever, and as such can be considered as legitimate target for a vote to close. I also feel that some of the actual context would be valuable for the question. There is however a school of thought (that makes some sense in my opinion) that a question being interesting, and other positive ...

6

If your question got closed, the first edit will put it in the reopen queue, where users will review it and consider whether or not it should be reopened. Note that this is a one-shot chance. After the first edit (by yourself, or someone else), the question is put in the reopen review queue, and if it does not get reopened, it will not be put there again. ...

6

Reopened The question A Proof of the Fundamental Theorem of Arithmetic was rightfully quickly closed as unclear, but the asker has since edited to clarify what they meant and what specific difficulty they had adapting the standard proofs to get what they want. It seems to me to be a perfectly reasonable question which is mostly clear (though a constraint ...

6

Reopened I would like to see the question "What is $\nabla X$ in Riemannian geometry?" re-opened. (I see from the timeline that the reopen queue has finished. In hindsight, I should have edited the title when I made the reopen vote.) It appears it was marked as a duplicate of Gradient of a vector field?, seemingly because the short version of the question (...

Only top voted, non community-wiki answers of a minimum length are eligible