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51
True or false? $x^2\ne x\implies x\ne 1$
math.stackexchange.com

34
“How long 'til we get there?” Road trip puzzle
math.stackexchange.com

32
Does Pascal's Wager contain any logical flaws or fallacies?
philosophy.stackexchange.com

23
Identity for convolution of central binomial coefficients
math.stackexchange.com

22
How can I sum the infinite series $\frac{1}{5} - \frac{1\cdot4}{5\cdot10} + \frac{1\cdot4\cdot7}{5\cdot10\cdot15} - \cdots\qquad$
math.stackexchange.com

22
The Mathematics of Tetris
math.stackexchange.com

21
Is “Lebensraum” a taboo word in German because of an association with Hitler and the Nazis?
german.stackexchange.com

20
Should I use the old spelling rules?
german.stackexchange.com

19
How to distinguish between a female friend and a girlfriend?
german.stackexchange.com

19
“Schlaf mir nicht ein” - warum “mir”?
german.stackexchange.com

18
Eifersucht vs. Neid
german.stackexchange.com

17
How to study math to really understand it and have a healthy lifestyle with free time?
math.stackexchange.com

15
Is $\pi$ more transcendent than $e$?
math.stackexchange.com

15
“Food” in German
german.stackexchange.com

14
Intuitive use of logarithms
math.stackexchange.com

14
Are there any generic thinking approaches for providing mathematical proofs to a given theorem
math.stackexchange.com

13
Solve $f(f(n))=n!$
math.stackexchange.com

13
Do Latin loanwords conserve their gender?
german.stackexchange.com

13
How separate are “durchfallen” and “der Durchfall”?
german.stackexchange.com

13
Does the German language have a Shakespeare?
german.stackexchange.com

13
Is “dümpeln” also used and understood in southern German speaking regions?
german.stackexchange.com

12
Counting trails in a triangular grid
math.stackexchange.com

12
Is learning (theoretical) physics useful/important for a mathematician?
math.stackexchange.com

12
Computing: $\lim\limits_{n\to\infty}\left(\prod\limits_{k=1}^{n} \binom{n}{k}\right)^\frac{1}{n}$
math.stackexchange.com

11
Mathematicians whose names are commonly mispronounced
math.stackexchange.com

11
What is the largest order of any element in $U_{900}$?
math.stackexchange.com

11
Was bedeutet: “Das geht sich nicht aus”?
german.stackexchange.com

11
Herkunft von “Versuch nicht, uns ein X für ein U vorzumachen”
german.stackexchange.com

11
Schlussformel für Beschwerdebrief?
german.stackexchange.com

11
What food to take on a 3-4 day long hiking trip?
travel.stackexchange.com

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