rckrd

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Undergrad Math Student

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18 Questions

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6	When an ideal is a prime ideal
5	Can we distinguish $\aleph_0$ from $\aleph_1$ in Nature?
4	Nonexistence of a strongly multiplicative increasing function with $f(2)=3$
3	Chance of getting a good grade
3	Show $\mathbb{Q}[\sqrt[3]{2}]$ is a field by rationalizing

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604 Reputation

+5	Nonexistence of a strongly multiplicative increasing function with $f(2)=3$
+20	Showing that a group of order 21 is cyclic
+10	Can we distinguish $\aleph_0$ from $\aleph_1$ in Nature?
+5	Chance of getting a good grade

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13 Answers

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6	Showing that a group of order 21 is cyclic
4	Finding all groups with given property
4	Perimeter of a triangle
3	Suppose $R$ is a division ring and $b$ is a nonzero element of $R$. Prove that if $bb = b$, then $b = 1_R$
1	Counterexample?

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34 Tags

12 group-theory × 10	2 homework × 9
10 abstract-algebra × 6	1 finite-groups × 3
6 cyclic-groups	1 number-theory × 2
4 geometry × 2	1 reference-request × 2
4 triangle × 2	1 examples-counterexamples

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$Mathematics Stack Exchange$	Mathematics	604 rep	116
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	Super User	101 rep

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75 Votes Cast

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