Questions tagged [exact-duplicates]

This tag is referring to the process of identifying and closing questions that are exact duplicates of another question.

50 questions with no upvoted or accepted answers
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32
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0answers
340 views

Improving the search system

When recognizing some questions as duplicates, sometimes it is difficult to find the original question one remembers. For instance, I recently saw a question asking to prove that $$\forall x\in(-1,1),\...
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0answers
1k views

Help me find an original for questions like “Why $(-1)^{ab} \ne [(-1)^a]^b$ when $a, b, \in \Bbb R$?”

There are many questions that boil down to "why is it not true that $(-1)^{ab} = [(-1)^a]^b$ (or $z^{ab} = (z^a)^b$) for $z \in \Bbb C$ and $a, b \in \Bbb R$ (or $\Bbb C$)?" and, respectively, "...
22
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0answers
361 views

questions asked over 100 times

I just saw another question with the limit of $(1 + 1/n)^n.$ A few months ago, somebody asked some other multiple repeat question, I wrote to check any of the last 137 times it had been asked. he ...
22
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2answers
428 views

Should we close questions asking for hints as duplicates?

This question was inspired by this question Relationship between $\operatorname{ord}(ab), \operatorname{ord}(a)$, and $\operatorname{ord}(b)$, which I first came across while reviewing close votes. ...
17
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1answer
331 views

Meta-Meta question: Duplicate for previous question without actual real answer

So I was perusing the meta site, and I came across this closed link: https://math.meta.stackexchange.com/questions/20285/why-do-we-have-a-tag-called-stochastic-analysis The reason it was closed was ...
14
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0answers
245 views

Should a closed question be reopened if it gets a duplicate?

This question How do you prove that $n^2-1$ is composite when $n>2$? was closed as a duplicate. That was the right outcome, as opposed to, you know, "off-topic." But the question it's a duplicate ...
14
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0answers
99 views

Request: When closing a question as duplicate, to show all the linked questions

When people post "This question is a duplicate of XXX", would it be possible for the selections shown when we decide to close a question as duplicate, to also show XXX? This could be easily done by ...
13
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0answers
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Marking questions as the originals for duplicates

When a question is closed as a duplicate, the ideal result is presumably that the questioner, potential answerers and future visitors will head off to the linked question and that any new answers will ...
11
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0answers
336 views

Questions that show no effort to find existing similar questions a.k.a. abstract duplicates

EDIT: After amWhy brought the term "abstract duplicates" to my attention in the comments below, I thought some tidying-up was in order. The original body of the question is mostly intact below; I have ...
11
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0answers
131 views

Closing as duplicates for migrated questions.

This is mostly an announcement in case anyone wondered what happened to these two questions: https://math.stackexchange.com/questions/98121 https://math.stackexchange.com/questions/98162 Question 2 ...
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0answers
493 views

I think I made a bit of a mess, how to solve it

In a short time I asked three questions about more or less about the same subject: which surfaces have (for a large area) a constant negative curvature? "Hyperboloid like surface" as ...
9
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0answers
227 views

Database of abstract duplicates displayed when asking question/clicking on tag

The following question came up today: Prove $5a^2 ≠ 3b^2$ for all non-zero rational numbers $a$ and $b$ This is surely an abstract duplicate if not an actual duplicate. Yet as I intended to indicate ...
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0answers
107 views

“Math Processing Errors” in the Close as Duplicate Preview

I see plenty of "Math Processing Errors" in the close as duplicate preview:
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83 views

Duplicate shows as “on hold” in favourite list

Today, I favourited this question on my phone in order to hunt for a duplicate later. After the question was closed as a duplicate, I saw the following in my favourites list: As you can see, it is ...
8
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0answers
300 views

On reposting a good answer from a duplicate question

I'm talking about this question. This question is closed as a duplicate. An user commented, under an answer, that they think this answer is the best solution and want the author to repost the answer ...
8
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0answers
285 views

Duplicate question with a not satisfying answer

What should I do if I have a question that's been already asked and answered years ago but I don't get the answer? Should I ask a new question and link the old one?
7
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0answers
98 views

Plenty of [Math Processing Error]s before and after selecting duplicate in review queues

Since this is already more than six months this has been reported inside the Mathematics new site theme is live topic, and yet still not fixed, I've decided to put this one separately. This happens ...
7
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0answers
101 views

How can I benefit from my question being marked as a duplicate?

My question got recently marked as duplicate, and I agree on it. I understand marking a question as duplicate as useful in the following sense: It keeps Math SE clean. It provides me with a kind of ...
7
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0answers
117 views

Appropriate way to place sound arguments when reopening a duplicate marked question

The possibility to reopen a duplicate marked question is a nice feature. This action is usually based (at least I do hope so) upon sound arguments. Is there a way to attach or combine these ...
6
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0answers
218 views

Editing the list of abstract duplicates

I'd like to add some content to the meta post List of Generalizations of Common Questions. The entry will be under Probability and is going to be titled something ...
6
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0answers
122 views

LaTeX a jumbled mess when flagging as a duplicated

Is it normal for the LaTeX to be a jumbled mess when flagging as a duplicate? In case it isn't all systems, I am on a Linux system with Firefox 34.0.
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0answers
58 views

Redundant overlapping expressions in review queues when closing as duplicates

Since this is already more than six months this has been reported inside the Mathematics new site theme is live topic, and yet still not fixed, I've decided to put this one separately. If you go to ...
4
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0answers
81 views

How to find duplicates?

I am facing a basic problem: I do not know whether I am being silly or not, but often when I look at some questions, I feel that I have seen that before (if they have special structures like this one) ...
4
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0answers
93 views

Moderators: please straighten out loop in “duplicate of” graph

Recently a user asked Is "applying similar operations from left to right" a convention or a rule that forces us to mark one answer wrong? , which is a duplicate of 6/2*(1+2) is 1 or 9?; they ...
4
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0answers
229 views

Why these questions are not duplicates?

There are these two questions: (Theoretical) Multivariable Calculus Textbooks References for the multivariable calculus I was wondering why no one has marked them as duplicate of each other. Or is ...
4
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1answer
163 views

How should duplicate questions with more information be handled?

Suppose there is a question: How do you prove invariance of domain? which is answered in a complete, elementary manner. Now, suppose another question comes along ...
3
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0answers
95 views

What Counts as a duplicate Question?

Imagine somebody who is studying differential equations. He comes to the section on first order linear differential equations. He attempts to do the first problem in the section, but he comes up with ...
3
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0answers
178 views

A few high quality duplicates

Suppose we have a small number of very close duplicates on some particular question. Suppose also that the questions are high quality and have high quality answers - at least, as measured by the ...
2
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0answers
60 views

Should a canonical for common errors be created?

Should MSE create canonical posts for common "non-trivial" errors (as in not arithmetic or typographical-esque errors)? One example is freshman's dream, which is an erroneously calculation of $(a + b)^...
2
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0answers
60 views

Duplicate question notice checks closed duplicate for answers instead of target

In March 2016, Exact duplicate doesn't require answer but claims one exists was implemented, which purported to show a different notice if the duplicate target has had no answers. However, for ...
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0answers
68 views

On duplicate questions

Sometimes I've noticed (specially on older questions), that the duplicate tag often sends a link to a question that indeed is a duplicate, but has no answers or has only suggestions, meanwhile the ...
2
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0answers
77 views

Why does a question marked as duplicate get more views than the original?

As an example case, there's this question, slated to be deleted, which is marked as a duplicate of this question. Even though the latter one is more general and has been around longer, it has ...
2
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0answers
151 views

Answers to obvious duplicates

What to do with answers to questions which are obvious and exact duplicates of existing questions? I'm talking about this review I recently did. The answer was to one of those limit/inequality/...
2
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0answers
85 views

Metrics for questions

Lately I had a case that one of my questions was marked "as an exact duplicate". Projection, rotation and skew-symetry in N-dimensional space Commutativity of projection and rotation But what the ...
2
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0answers
118 views

Several questions, same problem, same user

I have searched Meta for several questions same problem same user. There were (1) quite (2) a few (3) related (4) titles, but these cover slightly different scenarios and do not seem to help here, ...
2
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0answers
71 views

Reopen-reclose request

Long ago, I asked this question. It was never a duplicate of this one, since the question was pretty different, and when the question changed it still had a different viewpoint, yet it was closed as ...
2
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0answers
82 views

Are question pairs of this type duplicates?

I have seen several people do this, and I've always felt awkward about it, but most recently the issue came up with this pair of questions. More generally, suppose we have two questions which are ...
2
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0answers
106 views

Why do you get reputation for asking a duplicate question?

I was wondering why one does get reputation for upvotes on a question that has been marked as duplicate. In my understanding it would be fair not to reward somebody who wasn't able to search for his ...
2
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0answers
161 views

How to tackle “duplicate” problem?

I wanted a post a problem which was very different from my own post Multiple Choice question about a continuous function. But whenever I wanted to post it, it says that this question is an exact ...
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0answers
101 views

More duplicates

I'm wondering if anything should be done about the following 3 questions which seem to me like duplicates (like merge them): is there a converse for the following Theorem? Equivalent systems of ...
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0answers
22 views

Title of linked question messed up when it includes MathJax

I've just flagged a question as duplicate ( it was already deleted) and the link to the original one appears broken - not the link itself but the title: If this helps, the source of the title of the ...
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0answers
55 views

Duplicate question on relation between gradient and Jacobian

I am a newbie to multivariable calculus so I am not sure whether I should be bringing this up on Math Meta or not but are these two questions duplicates and if so why they have not been marked ? ...
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0answers
51 views

Should questions be marked as “duplicate” if answered before, but a possibly better/simpler approach now used?

How to prevent possibly better/simpler approaches to a previously answered question from getting buried as a duplicate question ? Number of ways to arrange identical coins in a ring
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0answers
73 views

Closure as duplicate navigating in a circle

I was reviewing the close votes today when I came across this question , for identification purpose, lets call this $\mathbf{A}$. Someone had given it a close vote, marking it a duplicate of this ...
1
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0answers
93 views

How is a better comparison series is a duplicate of the question asking for the value of series?

Looking for a better comparison series for reciprocal of Fibonacci numbers is marked as duplicate of the question for the value of Fibonacci numbers. I don't see how it is a duplicate where it is ...
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0answers
69 views

Disputing Duplicate Tag

I am terribly disappointed that my question here has been marked as a duplicate. Someone asked for a solution for a popular question that did not use complex arithmetics. Only one solution came ...
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0answers
100 views

What is the {real} meaning of duplicate question?

edit: I want to know the rules of this site. I no longer care about answer and that question. Find the least value of $ \sec^6 x +\csc^6 x + \sec^6 x\csc^6 x$ First I asked this question because my ...
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0answers
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Are these two questions really duplicates?

First, I'd like to appologize if this similar questions were already made. I've tried to look for something similar and the nearest I found was this. I've even looked the two examples given in the ...
0
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0answers
52 views

Drawing attention to a question in another StackExchange site

I asked a question in CrossValidated Stack Exchange site because it deals with probability distributions. But it is a theoretical question (although I think it does not involve high-level maths). I am ...
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0answers
101 views

Canonical answer for “x/0”?

Does a canonical answer exist for the question of $\frac{x}{0}$ that covers all the popular misunderstandings and problems? Can this question be considered the canonical reference?