Skip to main content
Anguepa's user avatar
Anguepa's user avatar
Anguepa's user avatar
Anguepa
  • Member for 9 years, 6 months
  • Last seen this week
  • Constanza, Alemania
16 votes
2 answers
8k views

Gaussian integral with a shift in the complex plane

15 votes
6 answers
381 views

Is there a property in $\mathbb{N}$ that we know some number must satisfy but don't know which one?

10 votes
0 answers
1k views

Are Dynkin's $\pi-\lambda$ Theorem and the Monotone Class Theorem equivalent?

9 votes
1 answer
725 views

Maximum (or upper bound on the) weight of a topology on a set X.

8 votes
4 answers
333 views

Properties that better "capture" compactness.

8 votes
0 answers
208 views

Can any o-minimal structure be expanded to an o-minimal structure with definable choice?

8 votes
1 answer
671 views

Existence of finitely additive non-trivial measure on $\mathcal{P}(\mathbb{R})$.

7 votes
2 answers
360 views

A two player game on compact topological spaces

7 votes
2 answers
187 views

If a topological space can be partitioned into finitely many second countable subspaces, is it second countable? [Collecting examples]

7 votes
1 answer
473 views

On definable bijections $b:M^n\rightarrow M^m$ in an o-minimal structure $\mathcal{M}$.

7 votes
1 answer
582 views

Can't EF game theory be applied to finite languages WITH function symbols?

6 votes
5 answers
2k views

In how many ways can we pair ourselves?

6 votes
3 answers
351 views

The converse of Vaught's Test

6 votes
1 answer
786 views

Is the countable direct sum of reflexive spaces reflexive?

6 votes
1 answer
125 views

Structures strictly between $\{\mathbb{R},+,<\}$ and $\{\mathbb{R},+,\cdot,<\}$.

5 votes
2 answers
291 views

Let $X\subset \mathbb{R}$ Lebesgue measurable, $|X|<|\mathbb{R}|$, is it true that $X$ is null?

5 votes
1 answer
2k views

The weak-star topology is Completely Hausdorff (in particular Hausdorff).

4 votes
1 answer
421 views

About Mostowski's Collapse, how can you explain the starting set not being transitive?

4 votes
1 answer
139 views

Let $X\subset \mathbb{R}$ be Borel measurable. Can it be that $\aleph_0 <|X|<2^{\aleph_0}$?

4 votes
1 answer
1k views

The Diamond Principle implies the Club Principle.

4 votes
8 answers
537 views

If a property in $\mathbb{N}$ is true up to $10^{47}$ are there reasons to think it is probably true in all $\mathbb{N}$?

3 votes
1 answer
755 views

Understanding types and the proof that every type is realized in an elementary extension.

3 votes
0 answers
91 views

Writing some basic sentences in the language of set theory.

3 votes
0 answers
1k views

Properties maintained by the direct sum of normed spaces.

3 votes
0 answers
382 views

Are not all neighborhoods of $0$ in a locally convex space absorbent?

3 votes
1 answer
92 views

Given the axiom of choice, are cardinals ordinals?

3 votes
2 answers
51 views

In $C_0$, the convergence $\frac{f(x+t)-f(x)}{t}\to f'(x)$ is uniform

3 votes
1 answer
54 views

Understanding the largest closed under homeomorphism class of complete metric spaces

3 votes
1 answer
134 views

Existence of a certain near-metric map on an ordered divisible abelian group

3 votes
1 answer
88 views

Metrics on families of functions