Question

The existence of the power set of an infinite set

score 819 · Answer 1 · 2026-04-02 05:59:44

819

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The existence of the power set of an infinite set

Published on 02 Apr 2026 - 5:59

score 146 · Answer 2 · 2026-04-07 20:18:34

146

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Is there a name for affinely extended complex numbers?

Published on 07 Apr 2026 - 20:18

score 182 · Answer 3 · 2026-04-07 21:19:07

182

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Is an infinitely small percentage equal to zero percent?

Published on 07 Apr 2026 - 21:19

score 194 · Answer 4 · 2020-08-26 04:42:19

How many numbers are there between two real numbers n2 and n1? Does't depend on value of |n1−n2|? (Why or why not, and what is most precise notation?)

score 101 · Answer 5 · 2020-08-26 23:28:25

Doesn't $0.1,0.2,\ldots,0.9,0.11,0.12,0.13,\ldots,0.99,0.101,0.102,\ldots$ contain all values between $0.1$ and $1$, making that interval countable?

score 139 · Answer 6 · 2026-04-04 13:47:07

139

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Does the series $\frac{2}{4-1}+\frac{4}{16-1}+\dots+\frac{2k}{4k^2-1}$ have a sum up to $\infty$?

Published on 04 Apr 2026 - 13:47

score 51 · Answer 7 · 2020-08-29 22:23:32

How can I find the value of $ \sum_{n = 1}^{\infty} A \cdot \frac{1 - e^{-Bn}}{(Cn + D)^3} $ in terms of the constants $ A $, $ B $, $ C $ and $ D $?

score 31 · Answer 8 · 2020-08-30 01:59:14

31

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Can I assume that $(D*D)/M≈ 0$ if $M>>D$?

Published on 30 Aug 2020 - 1:59

score 461 · Answer 9 · 2020-09-03 11:43:07

461

Views

Why is the power set of $\mathbb{N}$ uncountable?

Published on 03 Sep 2020 - 11:43

score 182 · Answer 10 · 2026-03-31 12:09:10

182

Views

“Proof” that $\frac{1}{7}$ is irrational

Published on 31 Mar 2026 - 12:09

score 429 · Answer 11 · 2026-03-25 22:06:32

429

Views

What is the dimension of the vector space consisting of all real-valued functions?

Published on 25 Mar 2026 - 22:06

score 125 · Answer 12 · 2020-09-10 05:23:41

125

Views

How to find the value of $e^{-x} x^n$ at x = $\infty$?

Published on 10 Sep 2020 - 5:23

score 160 · Answer 13 · 2026-04-02 12:26:32

160

Views

What is the advantage of using an indexing set?

Published on 02 Apr 2026 - 12:26

score 53 · Answer 14 · 2020-09-18 20:32:21

53

Views

Convergence implies boundness of a sequence but an example confuses me!

Published on 18 Sep 2020 - 20:32

score 559 · Answer 15 · 2026-03-30 10:34:57

559

Views

A programmer’s doubts about countable vs uncountable infinity

Published on 30 Mar 2026 - 10:34

List Question

The existence of the power set of an infinite set

Is there a name for affinely extended complex numbers?

Is an infinitely small percentage equal to zero percent?

How many numbers are there between two real numbers n2 and n1? Does't depend on value of |n1−n2|? (Why or why not, and what is most precise notation?)

Doesn't $0.1,0.2,\ldots,0.9,0.11,0.12,0.13,\ldots,0.99,0.101,0.102,\ldots$ contain all values between $0.1$ and $1$, making that interval countable?

Does the series $\frac{2}{4-1}+\frac{4}{16-1}+\dots+\frac{2k}{4k^2-1}$ have a sum up to $\infty$?

How can I find the value of $ \sum_{n = 1}^{\infty} A \cdot \frac{1 - e^{-Bn}}{(Cn + D)^3} $ in terms of the constants $ A $, $ B $, $ C $ and $ D $?

Can I assume that $(D*D)/M≈ 0$ if $M>>D$?

Why is the power set of $\mathbb{N}$ uncountable?

“Proof” that $\frac{1}{7}$ is irrational

What is the dimension of the vector space consisting of all real-valued functions?

How to find the value of $e^{-x} x^n$ at x = $\infty$?

What is the advantage of using an indexing set?

Convergence implies boundness of a sequence but an example confuses me!

A programmer’s doubts about countable vs uncountable infinity

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