Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

  7. current community

    your communities

    more stack exchange communities

    company blog
Mathematics
Meta User
Network Profile
357
reputation
13

Anonymous

I'm am currently an undergraduate student of mathematics at George Mason University.

6
answers
21
questions
~2k
people reached
  • Fairfax, VA, USA
  • Member for 10 months
  • 54 profile views
  • Last seen yesterday

Communities (2)

Top Network Posts

We respect a laser-like focus on one topic.

Top Tags (33)

Score 4
Posts 12
Posts % 44
Score 4
Posts 3
Score 3
Posts 2
Score 1
Posts 2
Score 0
Posts 6
Score 0
Posts 3
View all tags →

Top Posts (27) All Questions Answers | Votes Newest

7 $(X,d)$ is separable if and only if $X$ does not contain an uncountable closed discrete subset Jul 17 '18
6 Given continuous $f:\{0,1\}^S\to[0,1]$ with S uncountable and $f(\sigma)=1$, show that $f(\tau)=1$ for some $\tau\neq\sigma$ Jul 24 '18
5 Has this topology been studied? Dec 30 '18
4 Cardinality of Subgroup of Permutations Jul 15 '18
3 Show that $A$ or $B$ must be bounded in $\omega_1$ Jul 20 '18
3 Compact operator $L:\ell^2\to\ell^2$ with $\Vert L\Vert=1$ such that $\Vert L(x)\Vert<\Vert x\Vert$ for all $x$ Jan 16
3 Show that a locally compact subspace of a locally compact Hausdorff space is open in its closure Aug 6 '18
3 Show that $A$ or $B$ must be bounded in $\omega_1$ Jul 20 '18
3 How many closed separable subsets does a Hausdorff space have? Jul 13 '18
3 Prove that the elements of X all have the same weight Jul 13 '18
View all questions and answers →

Badges (13)

Gold

—

Silver

—

Bronze

13

Rarest

View all badges →