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 Sep 23 accepted Upper bound for $\sum_{i=2}^{n} 1/(i\log(i))$ Sep 23 asked Upper bound for $\sum_{i=2}^{n} 1/(i\log(i))$ Sep 7 awarded Notable Question Aug 21 accepted How to see that $e^{x(1+x/3)} \le (1+x)^{(1+x)}$ for very small x>0? Aug 21 comment How to see that $e^{x(1+x/3)} \le (1+x)^{(1+x)}$ for very small x>0? I think I see. Does this mean that it should be true even if I replace 3 by any fixed constant more than 2? Aug 21 asked How to see that $e^{x(1+x/3)} \le (1+x)^{(1+x)}$ for very small x>0? May 15 accepted Geometric proof for $|| u ||^2 + || v ||^2 = \frac{1}{2}||u-v||^2 + 2||\frac{u+v}{2}||^2$ May 14 asked Geometric proof for $|| u ||^2 + || v ||^2 = \frac{1}{2}||u-v||^2 + 2||\frac{u+v}{2}||^2$ Mar 20 asked Consequences of Collatz Conjecture being true Dec 16 awarded Caucus Nov 19 revised 5 points on a plane with rational distances added 25 characters in body Nov 19 revised 5 points on a plane with rational distances added 25 characters in body Nov 19 revised 5 points on a plane with rational distances added 60 characters in body; edited title Nov 19 comment 5 points on a plane with rational distances @MarkFischler I am sorry. I do not see why adding another point at a rational fraction between two others always works. For example, if I start with an equilateral triangle, then we cannot just add another point at a halfway between the other two, right? Nov 19 comment 5 points on a plane with rational distances @peterwhy Thank you. I will edit the question to 5 points now. Nov 19 asked 5 points on a plane with rational distances Sep 24 awarded Autobiographer Aug 5 awarded Yearling Jul 2 awarded Curious Mar 9 awarded Popular Question