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siegehalver's user avatar
siegehalver
  • Member for 8 years, 6 months
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13 votes

Proving $\pi^3 \gt 31$

10 votes

If I ask $1000$ people to choose a random number between $0$ and $999$, what is the probability that no one will choose a specific number?

6 votes

In simple English, what does it mean to be transcendental in math?

5 votes
Accepted

GRE Algebra answer is wrong

4 votes

Writing empty set as union of basis elements for a topology.

3 votes
Accepted

If $f$ is Lipschitz of order $\alpha > 1$ over $[a,b]$, prove $f$ is constant

3 votes

Proving a sequence is Cauchy, given that $|x_n − x_m|< 1/\min\{n, m\}$

3 votes

word problems questions

3 votes
Accepted

Is there a subset which is bounded for one metric but not for the other?

3 votes
Accepted

Is it true that $p<q \Longrightarrow \ell^p \subset \ell^q$

2 votes
Accepted

Find $\lim g(x_n)$ with $x_n = 3+\frac{1}{n}$

2 votes
Accepted

A Form of the Reflection Principle in Complex Analysis

2 votes

Find the number of ways: Permutation and combination

2 votes
Accepted

Integral inequality with $L^p$ norm

2 votes

$f(\frac{1}{n})=a_n$ for which sequence holomorphic?

2 votes

Combinatorics: problem with sets

2 votes

Prove that $6^{n+1} + 4$ is divisible by 4

2 votes

Prove that $\lim_{n\rightarrow \infty}nx^n = 0$ for $|x| < 1$.

2 votes

Let $a,b$, and $c$ be real numbers. Suppose for every $c$ with $b < c$, we have $a\leq c$. Prove that $a \leq b$.

2 votes

Does there exists this kind of real sequence?

1 vote
Accepted

prove $f(x)=x^2$ for any $x \in I$

1 vote

The polynomial of minimal degree with root $\alpha$ is unique.

1 vote
Accepted

Bounded set is contained in a neighbourhood of $0$

1 vote
Accepted

methods to solve $(13+x)^{1/4}+(4-x)^{1/4}=3$.

1 vote

Is it true that if $E[X]>0$ then $P(X>0)\ge E[X^2]/(E[X])^2$

1 vote

Why is $\lim_\limits{x\to 0}\frac{\sin(6x)}{\sin(2x)} = \frac{6}{2}=3$?

1 vote

The $n$th prime number is $85489307341$. How to find $n$?

1 vote

Under what conditions can we move the limit symbol through the logarithm symbol?

1 vote

Example of maximum modulus principle

1 vote
Accepted

Prove $\mathbb Q (\sqrt2 + \sqrt3 ) = \mathbb Q (\sqrt2 , \sqrt3 )$