Mathematics
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UnsinkableSam's user avatar
UnsinkableSam
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Just a cat that learns maths as a hobby.

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All Questions Answers
Score Newest
question
8
Ideal class group of number fields, can every cyclic group arise as an ideal class group in some way?
Jun 20, 2021
question
7
Infinite Abelian subgroup of infinite non Abelian group example
Apr 4, 2019
question
6
The intuition behind the idea of 'embedding' in rings
Mar 24, 2020
question
5
Can we show a sum of symmetrical cosine values is zero by using roots of unity?
May 21, 2019
question
5
How can I prove this sequence converges to 1?
Jun 17, 2019
answer
4
Prove that $\left(1-\frac{a}{b}\right)^{b-a}\ge e^{-a}$
Sep 30
question
4
Use binomial expansion to show the following inequality [duplicate]
Feb 25, 2020
question
4
Proving $\{a\}$ is a also set given that $a$ is a set. Introduction to Set Theory.
Jan 18, 2021
question
4
Could someone explain why $\sum_{\substack{a_1,\ldots,a_n\in\mathbb{N}_0\\a_1+\cdots+a_n=n}}\frac{n!}{a_1!\cdots a_n!}=n^n$?
Oct 23, 2021
question
3
Does there exist a ring with $5$ elements with ${\rm Char}(R)=2$?
Mar 26, 2020

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