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Mathematics
X-Rui's user avatar
X-Rui's user avatar
X-Rui's user avatar
X-Rui
  • Member for 7 months
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A master's candidate in maths at Cambridge. Mostly deal with algebra but I can help on other topics whenever I can!

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39
Why can't we extend any field by simply adding a new symbol to it?
Jan 9
16
Can a discontinuous function have a continuous derivative?
Jan 30
13
A curious property of the fractional part
Dec 19, 2023
13
"Are there any simple groups that appear as zeros of the zeta function?" by Peter Freyd; why is this consternating to mathematicians?
Jun 28
8
With some conditions on $f$, resolve the claim $|f(x)-f(y)|\le|x-y|$ for all $x,y\in[0,1]$.
Dec 19, 2023
3
Small confusing regarding the elements of powersets?
Dec 14, 2023
3
Distribution of the fractional parts of $n/1, n/2,\ldots, n/n$ as $n$ tends to infinity
Dec 22, 2023
3
Number of polynomial functions in $\mathbb Z/2\mathbb Z[x_1, \, \ldots, \, x_n]$?
Jun 9
2
Relationship between the integral of $\sin(x)$ and the integral of $\ln(\sin(x))$.
Dec 30, 2023
2
Construction: Given two intersecting lines, find the point where their distance is $P$
Jan 7