Activity for Snoopyâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Comment | Post #290576 |
https://en.wikipedia.org/wiki/Whitney_extension_theorem (more) |
— | 3 months ago |
| Comment | Post #290515 |
It is interesting to know the categorical perspective of the problem. (more) |
— | 4 months ago |
| Comment | Post #287849 |
@#53398 Thank you for your comments. I have edited the post by adding the reference. The sketchy proof in the post is intended as a summary of the standard textbook proof. For the sake of clarity, I add the complete argument explicitly.
For the last part of your comment, I think I'm using the def... (more) |
— | about 1 year ago |
| Comment | Post #287846 |
Yes, thanks for that. I will edit it into the post. (more) |
— | about 1 year ago |
| Comment | Post #287667 |
Yes. Adding more text will push the mentioned expression down to the next line. If I change the expression to $f(x,0)$, then the scroll bar disappears. (more) |
— | over 1 year ago |
| Comment | Post #287664 |
That is the answer to the second question mark in the quoted excerpt. (more) |
— | over 1 year ago |
| Comment | Post #287625 |
The answer to your second bullet point is NO already. (See my answer below.) You don't need to write 3 and 4, which are all based on a wrong interpretation of the phrase in 2. (more) |
— | over 1 year ago |
| Comment | Post #287003 |
Thank you for your answer! I see from your proof that the crucial step is the fact that for prime $p$, one has: $p\mid rs$ if and only if $p\mid r$ or $p\mid s$. (more) |
— | over 1 year ago |
| Comment | Post #286985 |
Corrected. Thanks. (more) |
— | over 1 year ago |
| Comment | Post #286957 |
Thank you! Do you have a reference for the result in the second paragraph? (more) |
— | over 1 year ago |
| Comment | Post #285036 |
Here is a meta complain by a former Math SE mod: https://math.meta.stackexchange.com/q/28168. (more) |
— | over 1 year ago |
| Comment | Post #285036 |
@#8046 That's a long story. Basically, on Math SE, there is a small group of people who dominate the "deletion queue" of the site in a chat room. They have a very strong opinions on what kind of questions should *not* be allowed. Whenever they think the posts are not "good questions" using *their* st... (more) |
— | over 1 year ago |
| Comment | Post #285036 |
"What draws newcomers in?" Many good contributors suffer from (a lot of) their valuable highly upvoted answers being deleted frequently by a clique in Math Stack Exchange. Some of them have stopped doing any further contributions on that site. Those are some potential users of codidact. (more) |
— | over 1 year ago |