Lehs's user avatar
Lehs's user avatar
Lehs's user avatar
Lehs
  • Member for 9 years, 8 months
  • Last seen this week
  • Stockholm, Sweden
26 votes

Is there a domain "larger" than (i.e., a supserset of) the complex number domain?

17 votes

An example of a problem which is difficult but is made easier when a diagram is drawn

12 votes

Unusual mathematical terms

12 votes

Mathematical ideas that took long to define rigorously

9 votes
Accepted

Calculating Euler's totient function values.

9 votes

Does $1.0000000000\cdots 1$ with an infinite number of $0$ in it exist?

8 votes

What is category theory useful for?

7 votes

The myth of no prime formula?

6 votes

Chicken Problem from Terry Tao's blog (system of Diophantine equations)

6 votes

Why $A=\{1,2\}$ is different of $B=\{\{1,2\}\}$?

6 votes

Why not both true and false?

6 votes

Examples of open problems solved through short proof

6 votes

Past open problems with sudden and easy-to-understand solutions

5 votes

Why do we first introduce the open set definition for continuity instead of the neighborhood definition?

5 votes

Mathematical breakthroughs

4 votes

What can $\delta$ depend on and not on in $\delta-\epsilon$ formulation of limit?

4 votes

Very *mathematical* general physics book

4 votes

What’s the difference between analytical and numerical approaches to problems?

4 votes

What is the importance of $\sinh(x)$?

4 votes

Bad at computations... but not math?

4 votes

A conjecture concerning primes and algebra

4 votes

Does a mathematician study more, or research more?

4 votes

How to make a "function"?

4 votes

Why is mathematical induction a valid proof technique?

4 votes

A conjecture inspired by the abc-conjecture

4 votes

Why are structures interesting?

4 votes

Why are the domains for $\ln x^2$ and $2\ln x$ different?

3 votes

Submodule example

3 votes

Book for field and galois theory.

3 votes

Is the sum of the first $n$ primes a prime infinitely many times?

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