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visits member for 2 years, 10 months
seen Aug 4 at 20:30

May
14
revised Is $M=\{(x,y)\in (0,\infty )\times\mathbb{R} : y=\sin(\frac{1}{x}) \}$ a closed set in space $((0,\infty )\times\mathbb{R} ,\rho_{e})$?
added 65 characters in body
May
9
revised Find all limit points of $M=\left \{ \frac{1}{n}+\frac{1}{m}+\frac{1}{k} : m,n,k \in \mathbb{N} \right \}$ in space $(M,\rho_{e})$
added 41 characters in body
May
9
revised Find all limit points of $M=\left \{ \frac{1}{n}+\frac{1}{m}+\frac{1}{k} : m,n,k \in \mathbb{N} \right \}$ in space $(M,\rho_{e})$
added 12 characters in body; edited title
May
7
revised Is my proof for $\sum_{i=1}^{n}x_{i}y_{i}\leq \sqrt{\sum_{i=1}^{n}x_{i}^{2}\sum_{i=1}^{n}y_{i}^{2}}$ correct?
added 150 characters in body
May
7
revised Is my proof for $\sum_{i=1}^{n}x_{i}y_{i}\leq \sqrt{\sum_{i=1}^{n}x_{i}^{2}\sum_{i=1}^{n}y_{i}^{2}}$ correct?
deleted 28 characters in body
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 72 characters in body
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 72 characters in body
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 3 characters in body
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 3 characters in body
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 3 characters in body
May
7
revised Proof by induction of triangle inequality in Hilbert space.
added 576 characters in body
May
6
revised Is $\pi$ periodic in any numeral system?
added 28 characters in body
Apr
11
revised When is this equation true?
added 1 characters in body
Apr
11
revised When is this equation true?
added 53 characters in body
Apr
10
revised Is it equation true - limit
added 21 characters in body
Apr
10
revised Is it equation true - limit
added 1 characters in body
Apr
10
revised Is it equation true - limit
added 42 characters in body