Question

Need to fix this proof: Open linear subspace is equal to its normed superspace.

score 86 · Answer 1 · 2026-03-26 16:57:02

86

Views

Need to fix this proof: Open linear subspace is equal to its normed superspace.

Published on 26 Mar 2026 - 16:57

score 111 · Answer 2 · 2018-02-15 21:41:29

111

Views

Proof for : if $((a \mid b),$ & $(a \nmid c))$, then $b\nmid c.$

Published on 15 Feb 2018 - 21:41

score 41 · Answer 3 · 2018-02-16 05:28:26

41

Views

Proving an inequality by rearranging it

Published on 16 Feb 2018 - 5:28

score 238 · Answer 4 · 2018-02-16 11:51:01

238

Views

Which of the following cannot be possible value for the number of elements of $G?$

Published on 16 Feb 2018 - 11:51

score 102 · Answer 5 · 2026-03-25 06:12:54

102

Views

Property of homomorphism of groups

Published on 25 Mar 2026 - 6:12

score 174 · Answer 6 · 2026-03-25 04:40:39

174

Views

Rudin's PMA, theorem 4.20. A continuous function which is not uniformly continuous on a set which is not closed

Published on 25 Mar 2026 - 4:40

score 265 · Answer 7 · 2018-02-16 17:25:16

265

Views

Prove that prove that $\sum_{n=1}^{\infty} \frac{\log(1 + \frac{x}{n})}{n}$ is not uniformly convergent on $\mathbb{R}$ by contradiction

Published on 16 Feb 2018 - 17:25

score 168 · Answer 8 · 2026-03-25 16:03:06

168

Views

Solving $a_1+...+a_n=2011$ , $a_1\leq |a_2-a_3|, \ldots a_n\leq|a_1-a_2|$ with non-negative integers

Published on 25 Mar 2026 - 16:03

score 49 · Answer 9 · 2018-02-16 21:26:59

49

Views

Surjectivity of $T$ is not a necessary condition for $\operatorname{range}ST = \operatorname{range}S$

Published on 16 Feb 2018 - 21:26

score 150 · Answer 10 · 2026-03-25 14:18:30

150

Views

Does my $\pi$ algorithm work?

Published on 25 Mar 2026 - 14:18

score 140 · Answer 11 · 2018-02-17 00:01:10

140

Views

Complex Analysis Limit Proof

Published on 17 Feb 2018 - 0:01

score 41 · Answer 12 · 2018-02-17 00:27:46

41

Views

Is this the correct equation for "the probability that an event occur at least $x$ times"?

Published on 17 Feb 2018 - 0:27

score 1.4k · Answer 13 · 2018-02-17 01:14:54

1.4k

Views

Prove that there are $2n$ distinct symmetries of the regular $n$-gon.

Published on 17 Feb 2018 - 1:14

score 650 · Answer 14 · 2026-03-25 06:05:12

650

Views

Formal argument for maximization of a sum of convex functions

Published on 25 Mar 2026 - 6:05

score 173 · Answer 15 · 2018-02-17 03:31:29

173

Views

Is the $2\times 2$ matrix a group?

Published on 17 Feb 2018 - 3:31

List Question

Need to fix this proof: Open linear subspace is equal to its normed superspace.

Proof for : if $((a \mid b),$ & $(a \nmid c))$, then $b\nmid c.$

Proving an inequality by rearranging it

Which of the following cannot be possible value for the number of elements of $G?$

Property of homomorphism of groups

Rudin's PMA, theorem 4.20. A continuous function which is not uniformly continuous on a set which is not closed

Prove that prove that $\sum_{n=1}^{\infty} \frac{\log(1 + \frac{x}{n})}{n}$ is not uniformly convergent on $\mathbb{R}$ by contradiction

Solving $a_1+...+a_n=2011$ , $a_1\leq |a_2-a_3|, \ldots a_n\leq|a_1-a_2|$ with non-negative integers

Surjectivity of $T$ is not a necessary condition for $\operatorname{range}ST = \operatorname{range}S$

Does my $\pi$ algorithm work?

Complex Analysis Limit Proof

Is this the correct equation for "the probability that an event occur at least $x$ times"?

Prove that there are $2n$ distinct symmetries of the regular $n$-gon.

Formal argument for maximization of a sum of convex functions

Is the $2\times 2$ matrix a group?

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