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dtldarek
  • Member for 10 years, 3 months
  • Last seen more than a month ago
174 votes
Accepted

Do two right triangles with the same length hypotenuse have the same area?

118 votes
Accepted

Four color theorem disproof?

107 votes

How to convince a math teacher of this simple and obvious fact?

74 votes

Can two integer polynomials touch in an irrational point?

72 votes

Proving :$\arctan(1)+\arctan(2)+ \arctan(3)=\pi$

62 votes
Accepted

How do I motivate myself to do math again?

36 votes

How important is programming for mathematicians?

34 votes
Accepted

Does "This is a lie" prove the insufficiency of binary logic?

31 votes

How much Math do you REALLY do in your job?

30 votes

Notation for "is divisible by"

30 votes
Accepted

A example of closed and bounded does not imply compactnesss in metric Space

30 votes

Why we use the word 'compact' for compact spaces?

28 votes

Can't argue with success? Looking for "bad math" that "gets away with it"

27 votes

Fractions in binary?

27 votes

Proving that the maximum of two convex functions is also convex

24 votes

Do De Morgan's laws hold in propositional intuitionistic logic?

24 votes

Why Peirce's law implies law of excluded middle?

23 votes

Markov process vs. markov chain vs. random process vs. stochastic process vs. collection of random variables

22 votes
Accepted

Difference : subsequences and substrings

19 votes

Is it possible to put an equilateral triangle onto a square grid so that all the vertices are in corners?

18 votes

Motivation for spectral graph theory.

18 votes

Is there a mathematical symbol for "For every element"?

18 votes
Accepted

What is this property called for a function? $f(f(x))=f(x)$

17 votes

How many real roots does $(x-a)^3+(x-b)^3+(x-c)^3$ have?

17 votes
Accepted

Total unimodularity of matrix with consecutive ones property

17 votes
Accepted

Find the maximum possible area of a certain right triangle

16 votes

Intuitive definitions of the Orbit and the Stabilizer

16 votes
Accepted

Prove $\sqrt{a} + \sqrt{b} + \sqrt{c} \ge ab + bc + ca$

16 votes
Accepted

Intersection of two deterministic finite automata?

16 votes

What is a false premise?

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