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The purpose of this thread is to help focus the attention of the community on posts that may require exceptional handling. This includes requests for reopen and undeletion votes. A request should be posted as an answer below.

Please do not use this thread to engage in debates on contentious matters (e.g. reasons for closure). That should be done in a separate linked thread. The goal is to keep this meta thread free of tension, so that everyone feels comfortable posting here. Please be polite, and respect the many different viewpoints in our diverse community.

To inform readers of the current (and past) states of the targeted post, please append tags such [REOPENED,RECLOSED] or [UNDELETED] at the start of the answer.

Beware that "short" requests such as "request reopening of <link>" may be automatically converted to comments by the SE software, so you may need to write more (e.g. why you think that the question should be reopened or undeleted).

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  • $\begingroup$ For reopen requests that are run-of-the-mill (e.g. aren't meant to debate reasons for closure), do you think it would make sense to have a generic reopen-request thread, so that we don't end up with hundreds or thousands of questions on such. Then each request would simply be an answer in the reopen thread, and it being bumped would get the same exposure as a new question. Thoughts? Unless I hear any objections I will create such a thread. $\endgroup$ – Bill Dubuque Oct 24 '12 at 17:11
  • $\begingroup$ @Bill: Yes. This crossed my mind after posting this. I agree that it would be a good idea. $\endgroup$ – Asaf Karagila Oct 24 '12 at 17:37
  • $\begingroup$ I didn't expect that you would edit this specific question into the general question (I was writing another). But since it is done, we may as well go with it. $\endgroup$ – Bill Dubuque Oct 24 '12 at 18:28
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    $\begingroup$ @Bill: I saw no reason to wait with that idea. There was no actual discussion in this thread anyway. $\endgroup$ – Asaf Karagila Oct 24 '12 at 18:34
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    $\begingroup$ @Gerry: The solution would be to add a few words, I suppose. For example why it should be reopened. $\endgroup$ – Asaf Karagila Nov 9 '12 at 12:16
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    $\begingroup$ @Asaf, I opted for cursing the darkness rather than lighting a candle. Anyway, the question has been reopened. $\endgroup$ – Gerry Myerson Nov 9 '12 at 21:54
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    $\begingroup$ @Gerry: Darkness is just the light's way of proving the empty set exists. $\endgroup$ – Asaf Karagila Nov 9 '12 at 21:55
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    $\begingroup$ @Willie: I think that we should delete old reopening requests and perhaps have one post/additional thread for indexing them. I should also think that any request older than $n$ days for some reasonable $n$ should be deleted. If something has not been reopened and the initial votes expired... well, it makes sense to conclude that there aren't that many people interested in reopening. $\endgroup$ – Asaf Karagila Nov 30 '12 at 9:49
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    $\begingroup$ @Willie It's probably useful to have some nontrivial history remain so that folks $\rm < 10K$ can gain some idea about what types of questions do get reopened, and what types don't. By quickly scanning the requests it might help to convey some idea of the community consensus on marginal topics. To keep the unopened requests at the top of the active sort, they could easily be bumped if there is still interest. $\endgroup$ – Bill Dubuque Dec 1 '12 at 1:44
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    $\begingroup$ @Belgi: This is why I prefer to browse Meta with answers sorted by activity. $\endgroup$ – user856 Jan 5 '13 at 21:38
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    $\begingroup$ @Belgi Sorting by activity solves the problem. I just bumped the only active discussion to the top with an edit. There are two requests dated by November 2012, which I guess are no longer ongoing conversations (but anyone so inclined can bump them; it's a CW). $\endgroup$ – user53153 Jan 5 '13 at 22:07
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    $\begingroup$ Thanks for the workaround, I still think theres no reasons for this to log all reopen request that were/will be made $\endgroup$ – Belgi Jan 5 '13 at 22:10
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    $\begingroup$ Per the (short) discussion in this deleted meta post, I have edited this thread to support requests for votes to undelete as well as votes to reopen. $\endgroup$ – Alexander Gruber Jul 13 '14 at 14:59
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    $\begingroup$ The question got protected again; I'd assume, but cannot check, since it fulfills criteria for autoprotection The simplest way out would be to restart a question of this form. IMO this would be desirable regardless the protection issue. $\endgroup$ – quid Oct 17 '14 at 13:58
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    $\begingroup$ @quid: Yes, yes, I see that protection triggering every time I remove it. But I gave it some more thought, and for now it seems harmless after all. $\endgroup$ – Asaf Karagila Oct 17 '14 at 14:06

213 Answers 213

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[REOPENED]

I think the following question should be re-opened.

Content of the book "Group Theory Seminar Lectures:1960-1961"

The question is asking about the contents of a specific book. I cannot find anything on the internet about what is in this book, and it is not in my uni's library. I fail to see how this question can possible be "too broad". Presumably it contains some papers, so the titles of these papers would be a sufficient answer. A more vague answer, for example saying "finite $p$-groups" would also be clearly acceptable.

If you do not think that this question should be re-opened, then I would be interested to know how you would suggest the OP found out this information, without having to buy this book?

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  • $\begingroup$ The question as posed is too broad, and lacks context. You have now gotten some useful comments on it, but for the future, you could have 1. explained why you are interested in it, 2. explained that you have been unable to find any information about what it contains, 3. explained that you were looking for very general information rather than all the theorems and proofs contained in the book. $\endgroup$ – dfeuer Jan 16 '14 at 6:18
  • $\begingroup$ @dfeuer I was the one who provided the useful comments, not the OP. .. (Also, from the context, I believe that (3) was clear.) $\endgroup$ – user1729 Jan 16 '14 at 10:57
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[REOPENED]

Please Reopen Aleph and omega - were these deliberately chosen to represent infinities because of the connection between God (the alpha and the omega) and infinity?

It is a reasonable reference request on whether Cantor's (well documented) views on religion influenced his choice of notation. I think there are common misconceptions here, and this question can be a good place to at least start addressing them.

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  • $\begingroup$ While possibly interesting, I fail to see how it is a question about mathematics. $\endgroup$ – mrf Jan 21 '14 at 9:30
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[REOPENED]

This question was unilaterally put on hold by a moderator, as missing context and details. The question has since been edited to include the thoughts and efforts of the asker, and so should be reopened.

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Please reopen https://math.stackexchange.com/q/679700/85079.

My question is long but I put my questions in the gray shaded boxes. Questions are numbered too and spaced. Ergo it should not be 'unclear what you're asking.' None of the closers commented?

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  • $\begingroup$ Did you see where it said, "Beware that "short" requests such as "request reopening of <link>" may be automatically converted to comments by the SE software, so you will need to say more, such as why you think that the question should be reopened. "Please do not use this thread to engage in debates on contentious matters (e.g. reasons for closure)." $\endgroup$ – Gerry Myerson Mar 1 '14 at 23:21
  • $\begingroup$ @GerryMyerson: thanks. did the website convert this to a comment? i didn't know. i wrote about the numbering too. is it enough now? i don't want to essay too much. $\endgroup$ – NNOX Apps Mar 2 '14 at 6:10
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Please reopen https://math.stackexchange.com/q/678715/85079 please.

My question is long but I put my questions in the gray shaded boxes. Questions are numbered too and spaced. Ergo it should not be 'unclear what you're asking.' None of the closers commented?

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    $\begingroup$ Did you see where it said, "Beware that "short" requests such as "request reopening of <link>" may be automatically converted to comments by the SE software, so you will need to say more, such as why you think that the question should be reopened. "Please do not use this thread to engage in debates on contentious matters (e.g. reasons for closure)." $\endgroup$ – Gerry Myerson Mar 1 '14 at 23:20
  • $\begingroup$ The question has since been automatically deleted by the Community user. $\endgroup$ – user61527 Mar 16 '14 at 19:01
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    $\begingroup$ @T.Bongers And, worse, 10K users cannot vote to undelete since a Community bot deletion counts as moderation deletions. Bots should not be considered smarter than users regarding such. $\endgroup$ – Bill Dubuque Mar 17 '14 at 3:58
  • $\begingroup$ @BillDubuque: Dear Bill, A revised version of the question has since been posted (by the same OP), but in a Catch-22-like situation, has been closed essentially for being a duplicate of this (now deleted) question. I have voted to reopen the new question; maybe you would like to as well, since the old question seems irretrievable? Regards, $\endgroup$ – Matt E May 5 '14 at 11:21
  • $\begingroup$ @MattE Thanks for the notice. I too voted to reopen the newer version. I find it very disturbing that some users are not only voting to close these questions, but also to delete them (e.g. this newer one). These questions show genuine concern about understanding the essence of proofs. Yet questions that don't, but merely have random content injected in order to meet the "show effort" constraint remain opened and rewarded by the same users. What a sad state of affairs. $\endgroup$ – Bill Dubuque May 5 '14 at 14:11
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[REOPENED]

The question Unions and the axiom of choice. was edited and some context was given. I'd like to see it reopened so I can post an answer.

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I asked this question yesterday and it quickly received downvotes for being "opinionated." I then changed it to have the wording "Mental Math Tricks" in the title and "What are some interesting mental math tricks that you know?" as the question. After this change, a fifth vote was cast to put the question on hold as "primarily opinion-based" on the basis that "answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise."

Please note that I specifically urged posters to provide justification for their tricks, and that I did not intend (as I clarified in the comments) to select a single "best trick" as the answer - hence my tagging the question under "soft-question" and "big-list".

I also queried "For those of you who downvoted, do you still consider the question opinion based? Is there anything I could do to make it better?" but got no response. I'm fairly new to this forum and I don't actually know what "putting on hold" technically means, but I would be very grateful if this question could be re-opened for contributions. Please note also that it was given 4 upvotes and 2 favorites (the third was my own), suggesting my feelings are shared by at least some members of the community.

Can this be reversed? If the five members who put the post on hold propose to sustain their objections, how do they justify the claim that this question qualifies for "primarily opinion-based"? Also, please indicate if there is a standard process for dealing with this of which I am unaware. I have flagged the question to no avail.

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[REOPENED. Thank you.]

Will you please to reopen Infer distance from a point to a line, from the distance from a point to a plane [Stewart P793 12.4.44]?

My question is tendered at the bottom of my question and there are no comments on why it is avowedly "unclear." I've made an ancillary edit that should only clarify the OP.

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  • $\begingroup$ I gave some spacing between the [REOPENED] part to the text, so it'll be clearer that it's been reopened. $\endgroup$ – Asaf Karagila Apr 21 '14 at 22:59
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[REOPENED] for the 2nd time

This question was put on hold because it shows no effort. I edited the question to show my effort. I hope it will be reopened.

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    $\begingroup$ I am voting to reopen; the current closure reason no longer applies to the question: There is now sufficient context and details. Although I would strongly prefer that in the future the question be self-contained (e.g. the proof to be discussed / analyzed is provided in the question, rather than in an answer added later), I don't think this is reason for closure. $\endgroup$ – user61527 Apr 21 '14 at 18:45
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    $\begingroup$ I agree with @T.Bongers and have voted to reopen (and will post an answer if reopened). $\endgroup$ – Asaf Karagila Apr 21 '14 at 20:48
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Please reopen https://math.stackexchange.com/q/690129/85079 please.

The closers didn't comment on what 'missing context or other details' they were vexed about. I wrote 'thoughts on the problem and any attempts you have made to solve it'?

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    $\begingroup$ Indeed, the close reason seems strange. That one is "unclear what you are asking" just like the other two you have asked about here. $\endgroup$ – Tobias Kildetoft Feb 26 '14 at 13:11
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[REOPENED]

My query Applications of Countable Infinite Sets and Power Sets was put on-hold as it was not clear. I have edited it and hope it is a little better now. I am new to this forum and so if it still not fine then I would be glad if anyone could suggest how to make it fit. Otherwise, I would request that it is kindly re-opened so that I may get some answers.

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[REOPENED; RECLOSED]

Please consider reopening this question. Although the question itself may be naive, it does seem clear enough.

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  • $\begingroup$ Needs 2 reopen votes. $\endgroup$ – Bill Dubuque Jun 2 '14 at 1:29
  • $\begingroup$ @BillDubuque - It seems that the question got reopened and then closed again, because the OP doesn't provide attempts to solve the "problem". Do you have any idea why this question is controversial, but this one, which doesn't per se provide "work shown" or attempts to solve, is wildly popular? I visit this site only very sporadically, and I am rather unclear on the current standards being applied to questions. $\endgroup$ – John M Jun 2 '14 at 13:51
  • $\begingroup$ No, I strongky disagree with such closures. This is one of many bad side-effects of the extremely poor design of the SE platform. $\endgroup$ – Bill Dubuque Jun 2 '14 at 13:58
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    $\begingroup$ @Bill Dubuque: I think the solution here is to avoid re-opening these questions before the OP edits them. Although I have not voted to close, I pointed out before the question was re-opened that it would still be a candidate for closure. $\endgroup$ – Carl Mummert Jun 2 '14 at 14:03
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    $\begingroup$ @John M: I speculate that the difference is some combination of: (1) the level of the question (2) the fact that one is on standard facts, while the other is open, and (3) different people see different questions. It would be ideal for Sawarnik's question ( math.stackexchange.com/q/791378/630 ) to include something else, perhaps an explanation of where the problem was encountered. $\endgroup$ – Carl Mummert Jun 2 '14 at 14:06
  • $\begingroup$ @CarlMummert I disagree. Rather, I think the solution it to avoid closing them in the first place. Instead, users that are biased against any particular class of questions should lobby SE to give them better ways to filter questions. Forcing such bias globally onto the entire community is a recipe for failure. $\endgroup$ – Bill Dubuque Jun 2 '14 at 14:12
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    $\begingroup$ @Bill Dubuque: This issue has been discussed at length on meta, as you are well aware. For example, see meta.math.stackexchange.com/questions/9201/… , which has 65 upvotes (+87/-19) at this moment. Moreover, there would not be a "lacking context" reason in the closure menu if community support for it was not patently clear. Therefore, nobody is "forcing such bias" onto the community. The community simply has a bias against such questions, for reasons of which I am certain you are already aware. $\endgroup$ – Carl Mummert Jun 2 '14 at 14:26
  • $\begingroup$ @Carl As I said, the SE platform is extremely poorly designed. It makes no sense to expect "majority" opinions to be wise on topics (like teaching) where the majority (students) have little to no experience. And if you think that you should have the right to choose for others what questions they are allowed to value/answer then we have such widely disparate views on how such a general level math forum should function that there is little point in continuing. $\endgroup$ – Bill Dubuque Jun 2 '14 at 14:39
  • $\begingroup$ @Carl In any case, as I wrote when I created this thread, this is not supposed to be a place for such discussion. $\endgroup$ – Bill Dubuque Jun 2 '14 at 14:42
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    $\begingroup$ @Bill Dubuque: this thread was created by John M, not by you. I think that the thread for each question for which re-opening is requested is a reasonable place to discuss the merits of that question. What I would not find reasonable would be to claim that it is somehow surprising that the question here was closed - the question is an obvious candidate for closure in its present form. That ship has sailed. But there is an ongoing need to help users understand the community consensus on these matters (which, I want to emphasize, was shaped by teachers concerned with low quality questions!). $\endgroup$ – Carl Mummert Jun 2 '14 at 14:49
  • $\begingroup$ @Carl - Thanks very much! I think I get the gist of the issues involved. $\endgroup$ – John M Jun 2 '14 at 14:51
  • $\begingroup$ @Bill - Thank very much! I think I now get the gist of the issues involved. $\endgroup$ – John M Jun 2 '14 at 14:52
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    $\begingroup$ @Carl The "thread" refers to this entire thread, i.e. the reopen request thread (which was proposed and designed by me, even though Asaf morphed his question into it before I had a chance to discuss and post it - see the comments to the question). As the question says, this thread is not intended for extensive discussion. $\endgroup$ – Bill Dubuque Jun 2 '14 at 14:54
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[REOPENED]

I'd like to request that this post be reopened. The OP has clarified what the question is and in fact answered it himself yesterday. Therefore the reasons of lack of clarity or lack of effort are not valid for leaving it closed.

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[REOPENED]

This question was closed as a duplicate of a previous question. However, the previous question has a rather incomplete answer while the new one (the duplicate) received a very detailed answer. The new question should be reopened since it's more "canonical".

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[REOPENED]

This question seems crystal-clear despite the fact that the poster's command of English is weak.

Ordered field with nested intervals axiom without Archimedean axiom

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[REOPENED]

This question was closed for lacking context. It has now been improved, and should be reopened.

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[REOPENED]

Please consider reopening Find parameters of short geometric series. In its original form the Question was a slightly puzzling query-by-example, but it has now been clarified. I think it has the makings of good content.

Although the problem is upon analysis like the old chestnut of finding compound interest rate parameters, the User's application is different. The User hopes to solve such problems "by algebra" and may well learn that, apart from mere trial-and-error, such polynomial root finding needs a touch more math.

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[REOPENED, RECLOSED, REOPENED]

I believe that this question should be reopened. It is asking why $i\times 0=0$, but has been closed as "unclear what you are asking". I do not see why this is unclear: it is very clear! Moreover, $i\times0=0$ is a theorem, but the OP thinks it is assumed - this is a chance to help someone! Why waste the chance by closing the question...?

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  • $\begingroup$ "i×0=0 is a theorem" Hmmmm... :-) $\endgroup$ – Did Jul 30 '14 at 10:50
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    $\begingroup$ @Did Well, it isn't an axiom! :-) $\endgroup$ – user1729 Jul 30 '14 at 10:53
  • $\begingroup$ @user1729: So it's just a conjecture? :-) $\endgroup$ – Asaf Karagila Aug 6 '14 at 6:52
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[REOPENED; RECLOSED (AS A DUPLICATE)]

I would like to reopen this question, so that it may be reclosed as an appropriate duplicate.

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[Undeleted]

Please vote for undelete this question.

It asks for an important property of Castelnuovo-Mumford regularity, and the answer I've posted there could be useful for future readers.

Thanks.

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  • $\begingroup$ Voted to undelete. Wonder what prompted the OP to delete in the first place? $\endgroup$ – Jyrki Lahtonen Aug 9 '14 at 17:06
  • $\begingroup$ @JyrkiLahtonen Thanks. I think the OP has considered the question trivial (although he asked for the wrong inequality). $\endgroup$ – user26857 Aug 9 '14 at 17:11
  • $\begingroup$ FYI, @user26857, it's undeleted now. $\endgroup$ – Daniel Fischer Aug 9 '14 at 17:16
  • $\begingroup$ @DanielFischer Thank you all. $\endgroup$ – user26857 Aug 9 '14 at 17:17
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[REOPENED]

I believe that this question should be reopened. It was closed as "unclear", but it is clear (and further clarity can be found in the comments below the question).

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  • $\begingroup$ Would the downvoter care to comment? Are you saying it is unclear? $\endgroup$ – user1729 Aug 7 '14 at 14:55
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[RE-OPENED]

I edited this question to make it clearer. OP has commented that my edit is acceptable. I would like to encourage re-opening of the question.

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  • $\begingroup$ Can you perhaps edit the title as well? I voted to close in its original form (although the edit history implies otherwise!). After a cursory glance, it looks much improved. However, the title just looks like a random collection of words! If you improve it so that I have an idea of what the post is about without having to read it all (it is rather long!) then I will vote to reopen. $\endgroup$ – user1729 Sep 3 '14 at 8:32
  • $\begingroup$ @user, I will edit the title. Meanwhile, in reading the body, you can skip all the way down to where it says EDIT. $\endgroup$ – Gerry Myerson Sep 3 '14 at 9:03
  • $\begingroup$ Gotcha! Isn't the required algorithm simply "division" though? I'll comment on the main question... $\endgroup$ – user1729 Sep 3 '14 at 9:09
  • $\begingroup$ @user, I don't think it's just division. If you look at the example, where you want to make 10 from 3s and 2s, dividing 10 by 3 gives 3, but you can't use 3 3s since you don't have any 1s. You have to use 2 3s and 2 2s. $\endgroup$ – Gerry Myerson Sep 3 '14 at 9:12
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    $\begingroup$ Do you want to make that a comment to the main question? Better to discuss the actual question there, and the reopening here. (Although I will admit that I haven't actually read the whole post, just your edit!) $\endgroup$ – user1729 Sep 3 '14 at 9:14
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[REOPENED, RECLOSED]

I think that this question should be reopened so that it can be reclosed as "off-topic". It's clear what's being asked, but it's a PSQ with no input whatsoever. I'm asking because of this other question complaining that it was closed with the "unclear" reason.

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    $\begingroup$ Perhaps it can be reclosed as duplicate. $\endgroup$ – Joel Reyes Noche Sep 29 '14 at 7:53
  • $\begingroup$ How can both questions be off-topic? According to this page, math.stackexchange.com/help/self-answer , you can ask and answer your own question if you know the answer and would like to document the knowledge. Since it wasn't possible to answer the other question, which had been put on hold, I did the only thing possible to document the knowledge and invite other answers. $\endgroup$ – user179549 Sep 29 '14 at 8:38
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    $\begingroup$ @user179549 I actually didn't realize that you had self-answered your question. Closing the other as a duplicate (or merging, since they are literally the same question) seems more appropriate then. Still, I don't think what you did was completely OK, but that's a different discussion that I'm not willing to have now. $\endgroup$ – Najib Idrissi Sep 29 '14 at 8:43
  • $\begingroup$ I don't appreciate that you're telling me what I did wasn't okay, but at the same time, you don't want to say why and don't want to discuss it. $\endgroup$ – user179549 Sep 29 '14 at 8:49
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    $\begingroup$ @user179549 Okay, let me explain then. The other question was in the process of being reopened; once it would have been reopened, you could have answered it. On the other hand, it was of abysmal quality: it was a PSQ with no input at all, never even mind the formatting problems. In fact, it was probably someone trying to make us do his homework. Just for that, it should have been closed as off-topic. If you really wanted to see this question have an answer, improving it (by adding motivation etc) was IMO the best course of action. Then it would have been reopened and would have stayed open. $\endgroup$ – Najib Idrissi Sep 29 '14 at 8:53
  • $\begingroup$ How was I supposed to know it was in the process of being reopened? As far as I could tell when I posted my question, nothing had changed or would change. And I couldn't have edited Abdo's question to provide motivation either, since I didn't know his motivation. Most of your comments seem directed at the OP's perceived lack of effort rather than the real purpose of the site, which is to document knowledge. $\endgroup$ – user179549 Sep 29 '14 at 9:11
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    $\begingroup$ @user179549 I do not mean to be rude, but you're an unregistered user who has been a member for less than a day. I suggest that you familiarize yourself with the website before claiming you know its "real purpose". This argument we're having has been played out dozens of times on meta. This should be a good starting point (and this proposal is of most interest, I think). $\endgroup$ – Najib Idrissi Sep 29 '14 at 9:15
  • $\begingroup$ Najib, I don't see anything there that applies to my asking and answering the question. Could you please clarify whether you're saying that if the question had been closed as you said it should have, it would have been inappropriate for me to ask and answer the question? $\endgroup$ – user179549 Sep 29 '14 at 9:38
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    $\begingroup$ @user179549 Is it appropriate to ask again a question that was already asked and had an answer, regardless of whether it was closed? The answer is no. Either you can ask the new question in a way that makes it fit for the website (ie. with motivation etc), and then you can just edit the old question and it will be reopened, or you can't, in which case you shouldn't ask that question altogether. $\endgroup$ – Najib Idrissi Sep 29 '14 at 11:43
  • $\begingroup$ The two posts have now been merged. $\endgroup$ – Joel Reyes Noche Sep 29 '14 at 13:34
  • $\begingroup$ For reference: meta.math.stackexchange.com/q/16930/18398 $\endgroup$ – Joel Reyes Noche Oct 1 '14 at 1:13
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[UNDELETED]

How to switch to a Laurent series' next convergence ring?

I don't even know for sure how/why it was deleted, though I assume it's an automatism. Not having found any specific information, I ask a meta question

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[UNDELETED]

This question was recently deleted by the Community user. It has 2 answers, both voted better than +5, both with mathematical content I think benefitting the site. Please consider voting to undelete.

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[Undeleted]

This user posted few hours ago a question which I've answered, but he deleted this soon after posting my answer. Because I think that question can be helpful for other users, I'm asking for undelete it.

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[REOPENED]

The question Which of the following abelian groups are cyclic groups? just got closed.

It is not quite clear to me why, since the OP gave some indication of their progress. Indeed, I first voted to close myself but took it back when noticing this. This was even moved from a comment to the body (by me) at 1 or 2 votes only.

Meanwhile the question got also a pretty good answer, which actually explains something while not solving the problem completely.

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  • $\begingroup$ I wonder if the reopen queue would have taken care of this one, assuming you voted to reopen. $\endgroup$ – Jonas Meyer Dec 12 '14 at 15:06
  • $\begingroup$ Obviously, I did vote to reopen. However, I thought I'd give this explanation, since nothing on the post changed relative to the version that was closed (excepting the first one or two votes). Thus, there was no good reason to believe that without explanation the decision would change. $\endgroup$ – quid Dec 12 '14 at 15:13
  • $\begingroup$ (It seems obvious, but doesn't always happen that those with 3K+ who express displeasure with a question's closing vote to reopen.) I would be optimistic; it wouldn't just be the same people reviewing. All 3 reopen votes that didn't come from you or me came through the reopen review queue. Maybe those three also saw this post, so I'm not sure of the significance of that. $\endgroup$ – Jonas Meyer Dec 12 '14 at 15:25
  • $\begingroup$ It is likely true that I could have waited for a while, before posting here. However, in principle, I would also have been open to the option that somebody explains why they think it should still stay closed here; while I am quite versed in the mechanics of the site, I might not fully understand the nuances of some views around "PSQ." Furthermore, this question seemed like good showcase of certain type of unfolding of events; so I meant to record it. Indeed, I even thought about posting a question proper, but then decided for posting here as a middle ground. $\endgroup$ – quid Dec 12 '14 at 16:07
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$\begingroup$

[UNDELETED, then DELETED again by Community, UNDELETED]

Please vote for undelete this question.

I've posted an answer and a mathematical comment there which I think can be useful to other users.

Moreover, this should be considered as a kind of warning to that user (who posted his first question on M.SE today) that this is not the way M.SE is working: posting a question, get an answer, then delete the question.

Thanks.

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    $\begingroup$ The number of drive-by shooters is on the increase. I've seen too many lately, too. Such encounters always make me feel ill. One more reason to vote in favor of obligatory registration. $\endgroup$ – Jyrki Lahtonen Dec 1 '14 at 17:00
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    $\begingroup$ @JyrkiLahtonen In this case happened something I've never seen: the user deleted the question, but also deleted his account! $\endgroup$ – user26857 Dec 1 '14 at 17:40
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    $\begingroup$ I'm afraid I've seen that before, too. $\endgroup$ – Jyrki Lahtonen Dec 1 '14 at 17:41
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    $\begingroup$ @JyrkiLahtonen In this case, registering the account was necessary to have the ability to delete the question. Unregistered users cannot delete. $\endgroup$ – Daniel Fischer Dec 1 '14 at 18:40
  • $\begingroup$ @Jyrki: All the more reason to heed to Pete L. Clark's call to "Vote early, vote often" from way back. $\endgroup$ – Asaf Karagila Dec 2 '14 at 7:06
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    $\begingroup$ I support that spirit, @Asaf. But when the question looks like a copy/pasted HW problem I want to engage the asker first. The last time I did that it backfired. I gave a hint, then started typing in my welcoming speech, explaining what was problematic about the question. After the first such comment, the OP thanked for the comments, deleted the question and the account. I was like "WTF?". I'm sure we've all seen worse. Many of them won't post that thank you comment :-/ $\endgroup$ – Jyrki Lahtonen Dec 2 '14 at 7:51
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[(DELETED, UNDELETED)^2, DELETED]

https://math.stackexchange.com/questions/1022883/let-xn-be-a-bounded-but-not-convergent-sequence-prove-that-xn-has-two-subse was recently deleted.

The original question suffered from a lack of context. The poster supplied context before the question was closed (unfortunately, in the form of an answer, rather than as an edit), but the final vote(s) to close were cast anyway. Then people started voting down the (good) answers that had been posted, presumably to make it easier to delete the question, so the content of the answers is gone now, as well.

I'd like to see the question undeleted.

I'd also like to see people stop voting down good answers, but it seems that is asking for too much.

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    $\begingroup$ Voted to reopen the current version. I didn't downvote those answers, but if they arrived when the question was very bad I understand the reason. That is the only way to try and pass the message. $\endgroup$ – Jyrki Lahtonen Dec 1 '14 at 17:07
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    $\begingroup$ If it is opened it can be linked to a couple of duplicates provided in the comments. $\endgroup$ – Jonas Meyer Dec 1 '14 at 17:12
  • $\begingroup$ Oops! I had missed those. Thanks for pointing them out, @Jonas. Can close it as a dup instead :-/ $\endgroup$ – Jyrki Lahtonen Dec 1 '14 at 18:10
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    $\begingroup$ I've just cast the final vote for undeletion; it's better to leave duplicates undeleted (yet linked) for searching. $\endgroup$ – apnorton Dec 24 '14 at 4:56
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    $\begingroup$ @anorton Not when the texts of the questions are identical. That's just duplication of content. $\endgroup$ – Najib Idrissi Dec 24 '14 at 8:13
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    $\begingroup$ (Especially when the only existing answer is an extremely cryptic hint -- there is still much work to do after using that hint) $\endgroup$ – Najib Idrissi Dec 24 '14 at 8:22
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    $\begingroup$ @Najib, there are four answers to that question, but three of them were subject to downvoting attacks and deleted. Would you be OK with keeping the question undeleted, if the three deleted answers were undeleted as well? $\endgroup$ – Gerry Myerson Dec 24 '14 at 20:13
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    $\begingroup$ There are already two questions, one of them with the exact same text for the question (so the "google" argument doesn't hold). The other questions already mention Bolzano-Weierstrass in the question text. They both have upvoted, undeleted answers. Meanwhile this question only had one undeleted answer, heavily downvoted. If it's undeleted it should be closed as a dup anyway. What do you want, exactly? Or better, why do you want this question undeleted so bad? $\endgroup$ – Najib Idrissi Dec 25 '14 at 9:14
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    $\begingroup$ What I want is for the question to be undeleted, reopened, closed as a duplicate, and its answers undeleted and merged into the other question, with the malicious downvotes reversed, and the malicious downvoters suspended. That's not asking much, is it? $\endgroup$ – Gerry Myerson Dec 25 '14 at 17:40
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    $\begingroup$ The first part of your request seems reasonable; the reversion of the down-votes, however, not so much, and the request for suspension is definitely not reasonable. $\endgroup$ – quid Dec 26 '14 at 12:22
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    $\begingroup$ "A moderator has deleted this post and it cannot be undeleted" $\endgroup$ – Martin Sleziak Dec 26 '14 at 15:05
  • $\begingroup$ @Gerry Re: "malicious downvoters suspended" Hear, hear! I'd expand that to malicious deleters too. $\endgroup$ – Bill Dubuque Dec 26 '14 at 18:25
  • $\begingroup$ @Martin, thanks. I suppose that what one moderator has deleted, another moderator can undelete? $\endgroup$ – Gerry Myerson Dec 26 '14 at 18:32
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    $\begingroup$ Please, see this.. Regards, $\endgroup$ – Pedro Tamaroff Dec 27 '14 at 12:02
  • $\begingroup$ @Pedro It would help to be more informative, e.g. "Please see this meta thread which explains why I unilaterally deleted this question" vs. "please see this". $\endgroup$ – Bill Dubuque Dec 27 '14 at 16:39
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$\begingroup$

[Undeleted]

Consider undeleting this question for the reason that the OP deleted out of frustration (check the comments) and it's a perfectly good question with the exception of the missing quantifiers, but this is something which the OP is lacking in knowledge and can easily be addressed.

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    $\begingroup$ math.stackexchange.com/q/1081845 $\endgroup$ – Did Dec 27 '14 at 2:30
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    $\begingroup$ There aren't even downvotes on the post, I don't know why he deleted it... $\endgroup$ – Najib Idrissi Dec 27 '14 at 9:02
  • $\begingroup$ @Najib: I think there was one downvote when I looked earlier (after seeing this post). I don't know how it was possible for the downvote to go away. $\endgroup$ – Jonas Meyer Dec 27 '14 at 9:11
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    $\begingroup$ @Jonas Um, in this case I guess maybe a serial downvoter? And indeed, some serial downvoting was reversed today. $\endgroup$ – Najib Idrissi Dec 27 '14 at 9:12
  • $\begingroup$ @NajibIdrissi There was a down vote before. $\endgroup$ – Git Gud Dec 27 '14 at 11:36
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    $\begingroup$ Thank you everyone for the undeletion. $\endgroup$ – Git Gud Dec 27 '14 at 11:38
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