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mavavilj
  • Member for 8 years, 10 months
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24 votes
4 answers
31k views

"Every function can be represented as a Fourier series"?

22 votes
3 answers
4k views

Can I compare real and complex eigenvalues?

20 votes
3 answers
3k views

What did Whitehead and Russell's "Principia Mathematica" achieve?

15 votes
2 answers
25k views

Quasilinear PDE definition?

11 votes
6 answers
1k views

What's funny about $\forall \forall \exists \exists$?

10 votes
2 answers
1k views

What does Dini continuity mean?

10 votes
1 answer
3k views

What's the relationship between ZFC and Peano axioms? Are they overlapping, complementary or separate?

9 votes
3 answers
2k views

What does "definition is independent of the choice of" mean?

8 votes
1 answer
10k views

What's the definition of a "collection"? [duplicate]

8 votes
4 answers
2k views

What does $f|_A$ mean? [duplicate]

8 votes
2 answers
262 views

Is it possible that "hard mathematical problems" would be easier in some other axiom systems?

6 votes
2 answers
380 views

What's this math concept visualized in this math poster including Euclid?

5 votes
2 answers
5k views

What kind of alternative mathematics systems exist? [closed]

5 votes
1 answer
1k views

How to see that the $p$-Laplacian is elliptic?

5 votes
1 answer
3k views

Why does one count a loop as a double in graph degree?

5 votes
1 answer
11k views

What's the difference between stationary and invariant distribution of Markov chain? [closed]

5 votes
2 answers
5k views

Collection vs. set of subsets vs. set of all subsets vs. family of sets

5 votes
5 answers
4k views

Why is infinite intersection "towards infinity" an empty set?

5 votes
1 answer
100 views

Is $\frac{z-\alpha}{1-\overline{\alpha}z}$ some special function in complex analysis?

5 votes
1 answer
11k views

Relationship between cartesian product and cross product?

5 votes
1 answer
104 views

Intuition of $\int_{-\infty}^{\infty}$?

5 votes
0 answers
647 views

Original proof of Taylor's theorem

5 votes
2 answers
251 views

What does the sum notation $\lim_{n\to\infty} \sum_{j=n}^\infty a_j$ mean?

5 votes
2 answers
107 views

Why is $\lim_{n \rightarrow \infty} \bigg( \bigg| \frac{n^{n^2} (n+2)^{(n+1)^2}}{(n+1)^{2n^2+2n+1}} \bigg| \bigg)=e$? [closed]

5 votes
3 answers
3k views

How to visualize a $120^\circ$ (or $240^\circ$) rotation of a cube about its body diagonal?

5 votes
5 answers
180 views

Evaluate $\int \frac{1}{\sqrt{x^2-1}}dx$ without using trigonometric substitutions

5 votes
2 answers
5k views

Taylor's polynomial uniqueness proof - why are these limits inferable?

4 votes
2 answers
6k views

Radius of Convergence of Binomial Series

4 votes
2 answers
1k views

Why does (finite) $\sigma$-algebra work in powers of 2?

4 votes
3 answers
3k views

Intution: second derivative corresponds to curvature?

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