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
960
reputation
6
8

btilly

I'm tilly on Perlmonks, btilly on Hacker News, and am active in many forums. I know Perl and math pretty well, but dabble in lots of things.

63
answers
0
questions
~11k
people reached
  • Santa Ana, CA
  • bentilly.blogspot.com
  • Member for 8 years, 4 months
  • 147 profile views
  • Last seen Mar 26 at 20:02

Communities (15)

Top network posts

Top tags (79)

Score 13
Posts 12
Posts % 19
Score 9
Posts 6
Score 7
Posts 4
Score 6
Posts 5
Score 5
Posts 6
Score 4
Posts 10
View all tags →

Top posts (63) All Questions Answers | Votes Newest

4 If $b \cdot a = c\cdot a$ for equal-sized non-zero vectors $a, b, c$, does it follow that $c = b$? Mar 1 '17
4 Is A a proper set of its power set? Mar 21 '17
3 $F \subset \mathbb{R}$ is closed. Prove there exists a countable $E \subset F$, where $\bar{E} = F$. Sep 25 '18
3 How much of calculus can we formalize without infinity? Feb 15 '17
2 Disproving sequential compactness Feb 15 '17
2 Proof that: 1+1≠0 Mar 1 '17
2 Rate of convergence of summable sequence Mar 30 '16
2 The Lebesgue Fundamental Theorem of Calculus Apr 5 '16
2 Taylor of second order for System of Differential Equations May 18 '16
2 Arithmetic sequence whose any five consecutive elements contain a prime May 20 '16
View all questions and answers →

Badges (14)

Gold

—

Silver

6

Rarest

Bronze

8

Rarest

View all badges →