Martin Sleziak's room

Miscellaneous (not suitable elsewhere)
3d ago – Martin Sleziak
114

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Starred posts

Aug 19, 2020 01:17
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Q: Guidlines for context edits and rewrites

Alexander GruberSuppose you come across a question that has been closed for lack of context, has high quality answers, and on its way to being deleted. Can you save the post by editing it to include more context? Here is the deciding question: Can the question be salvaged without changing the author's intent? ...

Jul 25, 2020 17:36
At least some response from a SE developer.
Jul 15, 2020 17:24
Wow. I am constantly amazed by your ability to figure things like this out (and to do so quickly).
Aug 31, 2017 12:10
For example, posting basically the same thing over and over to various places, asking things you have already asked several times before and repeating claims which you have been told you to be untrue or completely irrelevant could lead quite naturally to suspicion of trolling.
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Aug 31, 2017 12:04
@MathematicsAminPhysics You don't think that? Do you really find it hard to believe that people who see your behavior could think that it's just trolling rather than genuine questions?
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May 9, 2020 06:56
If you post a message which contains nothing but a link to a post on some site, it is oneboxed. There is also some other content which is oneboxed: meta.stackexchange.com/tags/onebox/info
Mar 24, 2020 05:40
@MartinSleziak How does the close vote queue prioritize questions for review?
Feb 8, 2020 18:45
@MartinSleziak Moderators can undelete comments which were deleted by themselves. They can't undelete a comment deleted by the user. See here. (Not a very good reference, but it has that information there.)
Feb 8, 2020 02:58
Perhaps I could have mentioned also this: Are there some tools to follow deletions on this site?
Jan 12, 2020 08:17
This should make a bit more space in the post. (But probably - if we add many various misspellings - we'll eventually run into the character limit again.)
Jan 12, 2020 08:16
@Isabellatrix I have removed most of SEDE queries from the post - I left the ones which search for exactly the given word (and not things containing the word) and also those ones which search for multiple strings.
Jan 12, 2020 08:16
I suppose that people who want to use SEDE can simply take the link and change the parameter.
Jan 6, 2020 14:13
@MartinSleziak: Hi! I don't want to prolong the conversation in the other room. I just want to say that in case it seems I was unhappy with your edit of the junk post, it's not the case. I was merely puzzled, because as you know in my opinion it was a waste of effort. And I do know that you have indeed rarely cast delete-votes or undelete-votes, consistent with your statement that you prefer to let others decide.
Jan 4, 2020 14:47
@MartinSleziak Oh. My point is that the only two names used in publications by Jakob are either Jakob Kellner or J. Kellner.
Jan 4, 2020 06:22
But there is a workaroud - if you pin your message and then click on "unpin" it will remain starred. (IIRC you can do this only once, so if you do that by mistake, you need another RO to pin the message.)
Dec 15, 2019 23:52
It turns out that I wanted to add more links on your answer but it's not possible anymore because it exceeds the limit of 30000 characters.
Dec 15, 2019 09:13
So if a "newbie room" is indeed created and if we want the new users to be able to get some help there, that would automatically need increased workload for moderators.
Dec 15, 2019 09:06
@MartinSleziak In another thread in MSE Sara Chipps stated that members of the staff have been largely told not to participate in MSE discussion "for their own emotional well-being". This is quite alarming, if you ask me.
Dec 7, 2019 09:32
@user Since you have asked a few times where are the discussions on meta related to the issues raised recently in GENTLE and Math Meta Chat, I have collected at least some links.
user12692
Dec 5, 2019 00:35
Hi @MartinSleziak
TYG
Dec 3, 2019 06:58
For "If x is a sequence such that for any generalized limit we get the same value L". Do we need to use the result in part (1)?
Another question, if I consider the Banach sequence which is defined by a generalized limit with shift-invariant. Is B(\{a_n\})=LIM(1/n \sum_{j=1}^n x_{j}) a Banach limit?
Here is my proof:
Dec 2, 2019 01:42
We can take that $f$ is positive as the third condition.
Dec 2, 2019 01:42
It seems to me that one of the reasons that sometimes you and me did not understand what the other person is talking about is that you never clearly stated what you consider as your definition of a generalized limit.
Dec 2, 2019 01:41
2. $f$ extends the usual limit.
Dec 2, 2019 01:41
3. An additional third condition which can be formulated in several equivalent ways.
Dec 2, 2019 01:41
We can take $\|f\|=1$ and the third condition.
Dec 2, 2019 01:41
We can take $f(x)\le\limsup x$ as the third condition.
Dec 2, 2019 01:40
I will just repeat that for me, this is definition of a generalized limit.
Dec 2, 2019 01:40
1. $f$ is a linear continuous functional.
Dec 2, 2019 01:18
There are many generalized limits. I only claim that for a convergent sequence $x$ each of them gives the same value, namely the usual limit $\lim x$.
Dec 2, 2019 01:13
@TYG Well, if you take $\LIM|_c=\lim$ as a part of the definition of generalized limit, this immediately tells you that for the every convergent sequence you have $\LIM(x)=\lim x$. So for convergent sequences there is the only possible value.
Dec 2, 2019 00:53
Clearly $2$ is bigger than $\limsup x$
Dec 2, 2019 00:52
In one of the answers you have a functional $f_1$ which maps $(1,-1,1,-1,\dots)$ to $2$.
Dec 2, 2019 00:52
There is also another functional which $f_2$ which maps this sequence to $-2$.
Dec 2, 2019 00:52
And both $f_1$ and $f_2$ extend limit.
Jun 23, 2019 19:47
For instructions how to render MathJax(TeX) in chat see this post on meta or go directly to robjohn's website.
Jun 12, 2019 18:17
The pictures are cool :-) What do you use for making them? (I usually stick with Asymptote for most of my drawings but I'm curious what the preferences of other people are in this respect)
May 16, 2019 02:03
@MartinSleziak Thanks for noticing. Do you think the migrated question should be closed as a duplicate of Find all polynomials $P$ such that $P(x^2+1)=P(x)^2+1$?
May 1, 2019 13:38
Thanks for your help with finding the statistics. Last question: where can I learn to use SEDE?
May 1, 2019 13:02
Personally, when is it appropriate to crosspost a question to MO?
Dec 15, 2018 05:46
How can I link to a stuff in chat?
Dec 14, 2018 14:24
In case it helps - this is example of a pinned message. Look on the right in the starboard. (It will also be listed in the stars tab.)
user131753
Dec 11, 2018 16:11
Rodríguez-Consuegra, F., Russell, Gödel and logicism , Philosophy of Mathematics, Proceedings of the 15th International Wittgenstein Symposium, Part 1, 1993, (Reprinted in Irvine, A. (ed.), Bertrand Russell: Critical Assessments, Volume II: Logic and Mathematics, pp. 320–329,) pp. 233–242.
Mar 13, 2015 09:12
Thanks for your constant efforts to keep the rooms active. I hope soon they will start being used properly :)
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Oct 20, 2018 08:33
You are too lazy to write the equation in latex and expect someone to help you? — 0x90 6 mins ago
Aug 13, 2018 15:26
Wikipedia: Rick Durrett