Mathematics
YuiTo Cheng
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Wir müssen wissen, wir werden wissen

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26
Can a nowhere continuous function have a connected graph?
Jun 26 '19
25
Numbers of distinct values obtained by inserting $+ - \times \div ()$ in $\underbrace{2\quad2 \quad2 \quad2\quad...\quad 2}_{n \text{ times}}$
Feb 20 '19
22
How well-studied is origami field theory?
Feb 18 '19
16
Is there a group $G$ and subgroup $H$, such that there exists $g\in G$ with $gHg^{-1} \subset H$ and $|H:gHg^{-1}|$ is infinite?
Feb 21 '19
16
Theorems in the form of "if and only if" such that the proof of one direction is extremely EASY to prove and the other one is extremely HARD [closed]
Jan 11 '19
14
A more natural solution to finding the general terms of a recurrence relation in $2$ variables
Feb 19 '19
12
Does $\triangle ABC$ exist such that $\triangle ABC \sim \triangle DEF$, with $D, E, F$ being the incentre, centroid, orthocentre of $\triangle ABC$?
Feb 15 '19
11
Packing regular tetrahedra of edge length 1 with a vertex at the origin in a unit sphere
Jan 4 '19
10
A list of Rudin-style textbooks
Dec 20 '18
10
Let $S=\{p(x) \in \mathbb Z[X] :|p(x)| \leq 2^x, \forall x\in \mathbb N\}$. Prove $|S| < \infty$
Feb 22 '19
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Will a LQ post review end if a person retracts his flag?
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TIME(n) versus TIME(nlogn)
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Is the statement "The deactivation sensor sends a signal to disarm the bomb" frame-independent in the train-tunnel paradox?

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