37 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 ...
11 votes

MO answers that are Google top hits

infinite chess (6th place) ZFC independence (4th place) continuum hypothesis solution (1st place) definable numbers (4th place) premium white chalk (1st place) common false beliefs (4th place) Turing ...
11 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 ...
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 ...
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:...
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 <...
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 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 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.
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).
2 votes

MO answers that are Google top hits

The search minimal hausdorff gives a top hit.
2 votes

Are searches by tag broken?

After performing a search, select "newest" tab (or in the reverse order) - this will work. Thats what you'll get if you'll search in this way for questions tagged with filters and then (or before) ...
  • 101
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

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 ...
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

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 ...
  • 8,593
1 vote

Are my comments searchable?

Yes, but with Google, not with the search box here on SE.
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 ...
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 (...
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 $K(\mathbb{Z},3)$: ...

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