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  • 17 votes cast
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
Oct
29
comment A large set of low dimensional vectors in $\mathbb{F}_2^L$, which sums of any small subset do not cancel.
@Servaes Sorry, I want to say that $L \le c\cdot \log n$ for some fixed $c$.
Oct
29
revised A large set of low dimensional vectors in $\mathbb{F}_2^L$, which sums of any small subset do not cancel.
added 7 characters in body; edited tags; edited title
Oct
29
comment A large set of low dimensional vectors in $\mathbb{F}_2^L$, which sums of any small subset do not cancel.
@JyrkiLahtonen Thank you. I change it to $\mathbb{F}_2^L$ now.
Oct
29
comment A large set of low dimensional vectors in $\mathbb{F}_2^L$, which sums of any small subset do not cancel.
@Servaes Thank you. I tried to fix my mistake.
Oct
29
revised A large set of low dimensional vectors in $\mathbb{F}_2^L$, which sums of any small subset do not cancel.
added 7 characters in body; edited tags; edited title
Oct
29
asked A large set of low dimensional vectors in $\mathbb{F}_2^L$, which sums of any small subset do not cancel.