Mathematics
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Paul
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All Questions Answers
Score Newest
question
71
How to write a good mathematical paper?
Aug 11, 2012
question
64
How to prove every closed interval in R is compact?
Apr 21, 2013
answer
33
How to show that the product of two irrational numbers may be irrational?
Oct 24, 2014
question
17
How to construct a Bernstein set and what are their applications?
Jul 12, 2012
answer
17
Can someone explain how $\frac{\tan x}{\sec x}=\sin x$?
Oct 3, 2014
answer
14
Let $Y$ be an ordered set in the order topology with $f,g:X\rightarrow Y$ continuous, show that $\{x:f(x)\leq g(x)\}$ is closed in $X$
Jul 2, 2012
question
13
I want to know why $\omega \neq \omega+1$. [closed]
Jan 12, 2012
answer
12
Show $1/(1+ x^2)$ is uniformly continuous on $\Bbb R$.
Oct 30, 2014
answer
11
How to find the limit of a function at infinity
Oct 24, 2014
question
10
Do we have always $f(A \cap B) = f(A) \cap f(B)$? [closed]
Jul 14, 2012
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11
How to get big \{ and \} braces for an equation
5
Is there a Hausdorff weakly Lindelof space which is not DCCC?
5
A regular first countable space of cellularity at most $2^\omega$

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