40
votes
Question about $i$ versus $-i$
This question relates directly to issues that are often discussed in the philosophy of mathematics.
According to one of the standard accounts of structuralism, what mathematical objects are at bottom ...
- 236k
22
votes
Accepted
Does anyone remember seeing this answer/comment? (A famous result known earlier than believed)
You are thinking of the question Two-colouring the two-sphere, where a certain problem seemingly in discrete geometry was explained to be related to quantum mechanics.
- 24.2k
12
votes
Accepted
Is it possible to search for posts/questions of an user $X$ commented on/answered by the user $Y$?
You can find several suitable queries in data explorer or create your own query. (Even for users who do not know much about SQL, it's not that difficult to look up basic info on the database schema ...
- 4,713
8
votes
How to find highly upvoted comments?
This seems like something where SEDE could be used as a suitable tool. Using the SQL syntax you can find top comments in the Comments table - and you can add ...
- 4,713
7
votes
Accepted
Searching for comments
The built-in search only searches in posts (questions and answers), so you will not find comments using that.
One method which is reasonable is using Google with restricting to this site. For example:...
- 4,713
7
votes
Accepted
Is there any third party search engine for MathOverflow?
I am the creator of Approach0 (https://approach0.xyz), a math-aware search engine.
Approach0 is currently only indexing Math StackExchange data, however, I am considering to add MathOverflow to ...
- 161
7
votes
Keyword Search of the User's own (my own) questions or answers
You can find various search modifiers in the help center. Or simply by clicking on "Advanced Search Tips" after you search for something.
Specifically, to find posts by a specific user you can user <...
- 4,713
7
votes
Accepted
Question preview MathJax error
StackExchange highlights your search term by putting it in bold (using <b>...</b> tags). In your case, that means the answer contains ...
- 101
5
votes
Accepted
Why is this? (searching by filter)
From https://mathoverflow.net/help/searching :
OR operator
To combine results from multiple tags, separate the tag names (enclosed in square brackets) with the word "or": ...
- 35.5k
5
votes
I can not find one question I have already asked
I suppose that the question you're looking is this one: One dimensional foliation of surfaces with prescribed graph of foliation.
The question is deleted. You should be able to see it from the above ...
- 4,713
4
votes
Help finding question
It is kind of easy to add suggestions how to search post fact, after Todd Trimble already found that the question is this one: Random rings linked into one component?.
Still, I'm tempted to add a ...
- 4,713
4
votes
Keyword Search of the User's own (my own) questions or answers
Here is how I do it.
I click on my own little user icon at the top of the page
and this puts my own userid into the search field
where I can then add keywords I want to search for.
- 41.1k
3
votes
Accepted
How to know if an old post is deleted, when I cannot find it
Try this perhaps, and linearity of expectation will be the second answer (at 70 votes currently).
- 24.2k
2
votes
How to know if an old post is deleted, when I cannot find it
As far as searching deleted questions is concerned, the site only enables you somewhat limited ability to search for your own deleted posts. I think it is quite well summarized in the answer here: Can ...
- 4,713
2
votes
Is there any third party search engine for MathOverflow?
It seems that uniquation searches both on MathOverflow and Mathematics Stackexchange (and also other sites).
Among example queries, there is search for $F_{n+1}=F_n+F_{n-1}$. You can see that among ...
2
votes
Is there any third party search engine for MathOverflow?
A few years ago we developed the search engine SearchOnMath, in order to search for mathematical formulas. Recently our tool has indexed both: Mathematics and MathOverflow.
Currently, SearchOnMath is ...
2
votes
Question about $i$ versus $-i$
Could this be the question you mean? It's not exactly about $i$ versus $-i$, but it mentions it as a motivating example.
"Co-ordinate-free" mathematics for general structures?
Even if it ...
- 12.9k
1
vote
1
vote
Question about $i$ versus $-i$
The discussion following Mike Shulman's 2013 post From Set Theory to Type Theory was useful to me to see what to say about this situation type-theoretically while writing section 3.4.3 of my book ...
- 5,094
1
vote
Feature request: displaying all answers of a given user
This isn't exactly about the feature you asked for, but let me leave here a brief comment. (Hopefully, some of the information here might be useful.)
One possibility to get list of all your answers (...
- 4,713
1
vote
Is there any third party search engine for MathOverflow?
Here are some further test cases. Some of them return nothing of interest from MSE. This may be because there really isn't anything relevant there.
The Eilenberg-MacLane space $K(\mathbb{Z},3)$: ...
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Only top scored, non community-wiki answers of a minimum length are eligible