I appear to have stumbled upon an odd question:
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I know Will was using his answer to  for testing, but I still think this is a bit odd:    I tried voting to undelete, but it just gave me the "nice try puny mortal, this was deleted by a mod" error popup.
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I think the picture pretty much explains it all.  Not sure if this is the case for all SE sites, but this is from Stack Overflow.
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I stumbled across this relationship while I was messing around. What's the proof, and how do I understand it intuitively? It doesn't really make sense to me that the sum of odd numbers up to $2x + 1$ should equal $x^2$.
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The title pretty much says it all.  If it helps, I found myself asking this question when reading .
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I got pretty confused at that question... Can anyone help me understand this question better and/or drop some hints please? Thank you!
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I have answered . My answer had links to valuable information in context of the problem, but the conclusion was useless (striked through in my answer). Another user gave correct solution to the problem in question, in the comment to the answer.  I decided to quote his comment, so my answer would be more likely upvoted. (I could say also: to make my answer complete and more informational; but to be honest, in the end it is because of the reputation :) )  Although I quoted it, because of the reputation issue, I'm not sure how ethical it is. On the other hand, reputation is just a mechanism for getting quality answers to clearly stated practical questions, in short for the site to have the qualitiy and valuable practical information.   So, my questions are:   is this action ethical? is this action acceptable? does this action indeed add to the quality of solution of the problem in question (e.g for some unknown (probably, but not neccessary, non SO user) surfer who stumbles upon it searching for the solution)?
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Failed another high quality  (for trying to ).  However, I discovered something interesting. It would be a good idea if the the there was a match between question and answer.
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Looking at the definition of an homeomorphism, this question came to my mind.
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I am interested in theoretical and practical considerations.
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What is the reasoning behind this?
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I was able to see , which has been flagged as not an answer, while going through the review tools. Is this supposed to be possible, or is this a glitch? If it's meant to be possible - what's the point of it? Surely being the OP I'm going to be biased and most likely wish to choose to disagree with the flags...    update:   I've been able to select "flag or disagree" and then say "I disagree"...   So, would there be some gaming involved here, if I was to agree with the flag, then delete my own answer (would I get a helpful flag for that), then undelete it (still leave my answer there)...?  However, as expected, it now appears to have disappeared from the queue as expected (or at least I assume it has, as it hasn't appeared in the 50 from multiple page reloads anyway...)  And here it is in flag history:
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On the , there is some concern regarding the use of a photograph taken of a comic book. The question is located .  I am actually the person who asked the question and took the photo. I considered asking the question without using the image, but felt that the image would help explain the situation better than I could in words. So, I assumed  and uploaded the two panels to imgur.com.  Some clarification about SE's stance on using such images would be appreciated.
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I was reviewing some stuff today, and I came across a rather ridiculous answer (see screenshot). I wanted to see the question and other answers, so I clicked on the link, and found that the answer I was reviewing was in fact deleted. Could someone take a look at it?
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As per the title, what is this new feature?
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Question: Can you provide an example of a claim where the base case holds but there is a subtle flaw in the inductive step that leads to a fake proof of a clearly erroneous result? [Note: Please do not answer with the very common  example.]  Comment: Sometimes inductive arguments can lead to controversial conclusions, such as the ,  and a host of other paradoxes. However, I am interested in examples of a more mathematical nature (as opposed to linguistic) where the inductive argument is subtly flawed and leads to erroneous conclusions.   Note: If you provide an answer, please do so in a way similar to how current answers are displayed (gray out the flaw so people can be challenged to discover it).
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It seems like maybe cancelled downvote might be less...weird?
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According to WolframAlpha,  but I don't know how I can prove it.