Questions tagged [exact-duplicates]

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

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1answer
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Duplicate flag was replaced by comment in my name

Yesterday I flagged this question: restriction diagonalizable operator is diagonalizable as a duplicate of this other question: Diagonalizable transformation restricted to an invariant subspace is ...
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2answers
488 views

Proof-verification and duplicates.

When someone posts a question, which asks for verification of their proof of something, the mathematical content of that question will often be a duplicate of another question. Now, in order to help ...
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1answer
237 views

Is it against the rules to ask about a different proof for a proposition which has already been asked?

Edit: if downvote is negative answer, then does 12 downvotes mean 12 negative answers i.e. it isn't against the rules? interesting My question was marked as a duplicate by Did. I was trying to use a ...
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1answer
173 views

Question closed after 4 years

I was surprised to see this The multiplicative groups $\mathbb{Q}^\ast$ and $\mathbb{R}^\ast$ are not isomorphic question of mine, which is over 4 years old, closed today. I was alerted earlier today ...
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A possible solution to reduce answering of duplicate questions

The whole point of people answering duplicate questions which are duplicates without checking if similar queries exist before are because they will get points if they do so. So, the reason why people ...
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0answers
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How should we flag duplicates? [duplicate]

There are some questions which have similar concept to solve (in the standard way) but different 'variables' like numbers. For example consider these set of algebra problems: Solve for x: $$ x+3 = 1$$ ...
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1answer
308 views

Advice on closing questions as duplicates

In a very recent question the OP had made considerable amount of progress in proving an inequality. The OP was only left to prove the inequality $x^2y+y^2z+z^2x\le \frac{4}{27}$. Myself knowing that ...
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462 views

How to quickly find duplicate questions which are not exact duplicates.

Some moderators are able to find duplicate posts which are not exact duplicates. That is to say even in the case where the question is posed completely differently but the solution uses similar ...
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1answer
186 views

How to flag a question that asks multiple duplicated questions?

How can I close Suggestions for a good statistics book and a calculus book? as duplications both What are the recommended textbooks for introductory calculus? and Recommend a statistics fundamentals ...
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1answer
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Why do high rep, long time users answer duplicate or too similar questions on book recommendations?

Way too many duplicates to Selecting the Real Analysis Textbooks, Recommend a statistics fundamentals book, What is the best book to learn probability?! I feel that too many book recommendations ...
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1answer
111 views

Merge request of two almost-identical answers

The answers https://math.stackexchange.com/a/831870/290189 and https://math.stackexchange.com/a/831830/290189 contain the same math equations with the same variables. The logic is the same, only the ...
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0answers
384 views

Should duplicate PSQs be closed as duplicates?

Usually once or twice a day in the close queue, I find a question that is a PSQ (Problem Statement Question) and also a duplicate. Sometimes another reviewer explicitly links to the dupe, other times ...
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1answer
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Question closed as a duplicate, link points to question closed as a duplicate

This question about an isomorphism between a localization and a quotient of a polynomial ring was properly closed as a duplicate. However, the question identified as the duplicate is this, which was ...
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2answers
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How to search for duplicate of this classic complex analysis question?

Aim A quick search for duplicates. Question If $|f(z) |\leq 1 + |z|$, show that $f(z) = az + b$ is a recently-posted question. I tried to search for its duplicates on Approach0 but I didn't manage to ...
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1answer
272 views

People behavior in math.stackexchange [duplicate]

I was struggling with a math problem and just went to send it to math.stackexchange in order to check my answer. but I see tsunami of condescension and arrogance. some people targeting the question ...
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1answer
292 views

Should I comment an old question or create a new one?

I have some questions about a Probability problem, which has already been asked and has a quite comprehensive answer. I am not arriving at the same result and I can not find out where my reasoning ...
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2answers
498 views

Should we have a canonical question on transitive / symmetric / reflexive relations?

It seems that we fairly regularly get elementary questions of the form: "Does a relation that is [A] and [B] have to be [C]?" where [A], [B] and [C] are some permutation of "...
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0answers
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Merging questions with multiple duplicates (not a duplicate)

21 days ago from August 15, I asked my first question which looked like $ a_1=1 ,\space a_{n+1}=a_n+\dfrac{1}{a_n} $ The question was marked as a duplicate by me undisputedly. But as being observant ...
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0answers
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Can someone add a Differential Equations section to the List of Generalizations of Common Questions?

I was surprised that there isn't already a section on the List of Generalizations of Common Questions for differential equation questions. I'm especially thinking of those cookbook type "How do ...
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1answer
206 views

Why aren't duplicates deleted?

Let's say a question is closed as duplicate and someone provided the link of the original question: Wouldn't it be better that duplicates are deleted off of the site? Or deleting them would be a ...
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1answer
362 views

What to do with duplicates of deleted questions?

There are 109 questions that are closed as duplicates of deleted posts. This SEDE query lists all such posts. Can we do something about these posts? One question is on its way to be Roomba'd and some ...
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1answer
186 views

My question got closed though it was not completely identical. [closed]

I recently asked this question: "Find the number of ordered pairs of integers $(x,y)$ such that $x^2+y^2-xy=37$" on the Math SE. My question got closed as a duplicate of this question: "...
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0answers
61 views

Is context significant in determining if a question is a duplicate?

I was looking at a pair of questions: Sum of random numbers and e constant And Expected number of (0,1) distributed continuous random variables required to sum upto 1 The rules of Math ...
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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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2answers
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Closing a poor question as off-topic or as a duplicate?

Few times I've faced the following dilemma: To vote for closing a poor question as off-topic or as a duplicate of another one (sometimes equally poor)? The last example is this: https://math....
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2answers
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Flagged duplicate “Does this answer your question?” text is misleading

Here's at least the second instance in which I have flagged a question as a duplicate, and the canned comment text "Does this answer your question?" elicits from the author of the duplicate question a ...
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0answers
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Unanswered Questions and chances of Decreasing Unanswered

Hello fellow stack members I have been trying to decrease the unanswered questions for this website, and even map out duplicates in the math that I know. You could look at my recent answered questions....
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1answer
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Link to duplicate target does not show up

I voted to close this post as a duplicate of this other post recently, and the OP agreed with the close vote about an hour ago. Unfortunately, for some reason, the duplicate target header just reads "...
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0answers
519 views

Encouraging duplicate hunters

There are more and more duplicates on this site, but sometimes it is time consuming to find an earlier source. Now, there is a variety of moderation badges for editing, voting, reviewing, raising ...
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1answer
75 views

How to link a duplicate post to two different posts where there are answers?

Recently I've asked this question on MSE which has in fact two questions on it: Describe all $R$-modules of low order (up to isomorphism) Later, I realized that in two different posts there were ...
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1answer
83 views

What does “ask a new one” mean?

In this question it it written that: This question already has answers here: Sets. Classes. …? (4 answers) Your post has been associated with a similar question. If this question doesn’t ...
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0answers
493 views

Asking a question which is pretty much a dupe

I want to ask a question, but it is basically a duplicate of a (5 year old) question already asked here and that question doesn't have an answer. Morally, any good answer to that question would be an ...
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3answers
725 views
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1answer
158 views

How do I make sure my question is not a duplicate? [duplicate]

A couple of questions that I have asked on this site have been marked duplicates and I have seen people attach the link of the previously asked question quickly (not just on mine, but on all other ...
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0answers
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Duplicate tag on my question [duplicate]

(Sorry I don't know whether it is called a tag or something else so) Recently I posted this which soon was marked as duplicate though questions to which it is compared as duplicate neither satisfy ...
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1answer
100 views

I don't believe my question is a duplicate

I asked a question here which was closed for being a duplicate, and though I have edited the question to clarify why it was not it has not been reopened. To restate: the question I am asking is a ...
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1answer
254 views

We have three question pairs closed as the dupes of each other

Digging in the SEDE, I've found 3 question pairs being each other's dupe. Namely: this and this, this and this, and this and this. Today we can't close a question as a dupe, if it would create such ...
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0answers
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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 ...
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1answer
364 views

Why community in SE deleted my comment related to the below duplicate question?

Really am sorry for the behavior of community of stackexchange math, I am the first who has marked this question as a duplicate question and I have got some up vote for this comment After sometimes,...
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10answers
9k views

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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0answers
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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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3answers
403 views

There needs to be a clean way of dealing with abstract duplicates.

(Edited) I found that these four question are very similar: (One) (Two) (Three) (Four), and are abstract duplicates in my opinion. However each question is "slightly" different then the next, ...
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4answers
764 views

downvoting because of duplication?

This question has five downvotes, and was closed as a duplicate of a question with 25 up-votes. Should one down-vote a question merely because of duplication? There's no mention of anything wrong ...
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7answers
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The duplicate thread

This thread is intended to help with closure of duplicates. The main use case are situations where a first attempt at duplicate closure was not successful.1 The creation of this thread was decided ...
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0answers
289 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?
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1answer
350 views

On the correct procedure after answering a quadruplicate question

Okay, so I just answered this question, and after answering read the "related" section and noticed that the answer had already been asked several times: 1, 2, 3, 4. Now I am not sure what to do, ...
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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 ...
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0answers
82 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 ...
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0answers
197 views

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 ...
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1answer
158 views

Strange link text in a possible duplicate

I've just flagged the question Indefinite integration $\int\frac{(2x^2)}{2xcos(2x)+(x^2-1)(sin(2x))}$ as a possible duplicate of another question posted by the same user. In the link text, a strange ...

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