Timothy Wagner

Member for 12 years, 10 months
Last seen more than 12 years ago

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abstract-algebra

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Score Activity Newest

88

How to show that every Boolean ring is commutative?

Nov 14, 2010

75

Does $R[x] \cong S[x]$ imply $R \cong S$?

Dec 8, 2010

30

$I+J=1 \Rightarrow I^n+J^n = 1$ for ideals (or elements in GCD domain) [Freshman's Dream Binomial Theorem]

Nov 15, 2010

27

Can $n!$ be a perfect square when $n$ is an integer greater than $1$?

Nov 30, 2010

23

Intuition behind $dx \wedge dy=-dy \wedge dx$

Nov 23, 2010

Questions

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29

When does the distributive law apply to ideals in a commutative ring?

Dec 13, 2010

20

Is a Gödel sentence logically valid?

Dec 9, 2010

18

When do the Freshman's dream product and quotient rules for differentiation hold?

Nov 19, 2010

17

Equilateral polygon in a plane

Nov 23, 2010

14

A vector space over $R$ is not a countable union of proper subspaces

Nov 17, 2010

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abstract-algebra

280

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18

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ring-theory

204

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7

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commutative-algebra

144

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11

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polynomials

94

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4

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idempotents

88

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1

post

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+10

$I+J=1 \Rightarrow I^n+J^n = 1$ for ideals (or elements in GCD domain) [Freshman's Dream Binomial Theorem]

+10

What is the maximum number of primes generated consecutively generated by a polynomial of degree $a$?

+10

Intuition behind $dx \wedge dy=-dy \wedge dx$

+10

Is a Gödel sentence logically valid?

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