SomeStrangeUser's user avatar
SomeStrangeUser's user avatar
SomeStrangeUser's user avatar
SomeStrangeUser
  • Member for 10 years, 11 months
  • Last seen this week
24 votes
2 answers
4k views

A riddle with a witch and some gnomes (guessing numbers on hats)

23 votes
0 answers
601 views

Explaining a pattern observed when computing $\binom{2n}{n}$

15 votes
3 answers
589 views

Discover to which batch a coin belongs

13 votes
2 answers
714 views

A Question regarding disjoint dense sets

9 votes
2 answers
262 views

Additional ways of defining real powers.

9 votes
3 answers
892 views

What is the relation between axiomatic set theory and logical quantifiers?

7 votes
1 answer
343 views

Prove a result on the size of the minimal set that generates a finite abelian group

7 votes
1 answer
13k views

Integral of a square compared to the square of an integral

7 votes
2 answers
188 views

A simple way to find $\lim_{n\rightarrow\infty}{\frac{1}{n^2}\sum_{k=1}^n{\sqrt{n^2-k^2}}}$

6 votes
2 answers
767 views

Show that $-3$ is a primitive root modulo $p=2q+1$

6 votes
2 answers
669 views

A formula for bit strings with no $k$ consecutive $1$'s using generating functions

5 votes
4 answers
435 views

Finding a closed form for $\sum\limits_{\substack{0\le n\le N\\0\le m\le M}}\left|nM-Nm\right|$

4 votes
1 answer
102 views

A simpler way of showing $\int_1^n \frac{t-\lfloor{t\rfloor}}{t}dt = \frac{1}{2}\log{n} +O(1)$

4 votes
1 answer
101 views

Showing $\Gamma\left(x+1\right) \ge x^{x/2}$, when $x\ge2$

4 votes
1 answer
191 views

Generalizing the Monotone Subsequence theorem

4 votes
2 answers
2k views

Finding a closed form for a sum involving floor function $\sum\limits_{k=1}^nk\lfloor km/n\rfloor$

3 votes
1 answer
1k views

Under what conditions should a sub-group of a direct sum, itself be a direct sum?

2 votes
1 answer
895 views

What is missing? (Rudin's Principles of Mathematical Analysis - Theorem 2.30)

2 votes
1 answer
189 views

Constructing an example of a infinite set of triangles on the rational line whose union does not contain the interior of a rectangle.

2 votes
3 answers
167 views

Sufficient and necessary condition for a linear map to be a scalar multiplication [duplicate]

2 votes
0 answers
117 views

Unexplanied pattern from increasing rational sequences

1 vote
1 answer
336 views

Greatest Divisor less than root

1 vote
5 answers
156 views

Does $a\neq b$ imply $ka\neq kb$?

1 vote
2 answers
203 views

Show that $G\{m\}$ is finite for all non-zero $m\in \mathbb{Z}$

1 vote
2 answers
96 views

Characterizing elements with square norms in quadratic integer rings

1 vote
1 answer
151 views

Parseval's identity does not hold for constucted basis

1 vote
1 answer
97 views

How do I prove this seemingly obvious property of subgroups

1 vote
1 answer
397 views

Obtaining a bound on the Bernstein approximation of Lipschitz functions

0 votes
0 answers
48 views

Example of the inequality $c_0\neq\bigcup l_p$

0 votes
1 answer
49 views

Implication of vacuous truth on the space of possible statements