Mathematics
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grayQuant
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University student studying math and economics.

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All Questions Answers
Score Newest
question
25
Is Lewis Carroll's reasoning correct?
Mar 17, 2014
question
11
What are the prerequisites for taking introductory abstract algebra? [closed]
Dec 13, 2012
question
6
If there is a bijection $f: X\rightarrow Y$, prove that there exists an isomorphism $\phi :S_X\rightarrow S_Y$
Feb 20, 2015
question
5
Proving that $ f: [a,b] \to \Bbb{R} $ is Riemann-integrable using an $ \epsilon $-$ \delta $ definition.
Apr 28, 2015
question
5
For which fields is $\left\{\begin{pmatrix} a & -b \\ b & a \end{pmatrix} \,\middle |\, a, b \in F\right\} \subset M_2(F)$ a field?
Sep 10, 2015
question
5
Infinite intersection of compact, path connected, nested sets is path connected?
Mar 4, 2016
question
5
Find all Pythagorean triples $a<b<c$, where $c=65$.
Feb 16, 2014
question
5
Necessary and sufficient conditions for an abelian group to be a vector space over $\mathbb{Q}$
Nov 29, 2015
question
4
Prove properties of exponential function using a limit definition
Mar 19, 2015
question
4
Prove that if $0\leq a,b$ and $a+b=1$ then $x^ay^b\leq ax+by$ for $x, y >0$
Apr 7, 2015
Top Meta posts
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What is the policy on archiving old questions?
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42
Why did Greeks and Romans dilute their wine?
19
Storing food without refrigerator during the winter
13
Song school vs. Han school of Confucian thought in the Qing dynasty
10
What was the social status of a man who failed the civil service exams in Imperial China ( 1200 - 1800 AD )?
10
How can we explain the decline of Buddhism in India around the 12th century?

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