Question

Cardinality of un-symmetric subsets of $\mathbb{R}^2$

score 51 · Answer 1 · 2026-04-10 16:37:55

51

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Cardinality of un-symmetric subsets of $\mathbb{R}^2$

Published on 10 Apr 2026 - 16:37

score 481 · Answer 2 · 2026-04-17 15:58:01

481

Views

Prove $2^N$ is uncountable or $2^N$ is equinumerous to power set of $N$.

Published on 17 Apr 2026 - 15:58

score 407 · Answer 3 · 2026-04-11 02:55:50

407

Views

Justifying the difference between countable and uncountable

Published on 11 Apr 2026 - 2:55

score 111 · Answer 4 · 2026-04-16 06:27:32

111

Views

Correct set notation with an indexed range

Published on 16 Apr 2026 - 6:27

score 457 · Answer 5 · 2026-04-14 06:29:36

457

Views

Infinite cartesian product of singletons

Published on 14 Apr 2026 - 6:29

score 79 · Answer 6 · 2026-04-12 11:41:24

79

Views

Proof of lemma about power set and one question.

Published on 12 Apr 2026 - 11:41

score 914 · Answer 7 · 2026-04-17 11:38:09

914

Views

Is the set $\{(x,y)| x^2+y^2 = \frac{1}{n^2}, n \in \Bbb{N}, x\in \Bbb{Q}$ or $y \in \Bbb{Q}\}$ countable?

Published on 17 Apr 2026 - 11:38

score 106 · Answer 8 · 2026-04-16 15:19:37

106

Views

Question about notation on the subject of Vector Spaces

Published on 16 Apr 2026 - 15:19

score 123 · Answer 9 · 2026-04-14 20:52:00

123

Views

Notation for a matrix populated with a Cartesian product of sets

Published on 14 Apr 2026 - 20:52

score 56 · Answer 10 · 2026-04-12 18:02:21

56

Views

What's the limit of a recursive superset operation called?

Published on 12 Apr 2026 - 18:02

score 286 · Answer 11 · 2026-04-16 06:15:02

286

Views

Center of interval belongs to interval

Published on 16 Apr 2026 - 6:15

score 76 · Answer 12 · 2026-04-15 22:34:09

76

Views

The special role of certain Sets in the theory of sets

Published on 15 Apr 2026 - 22:34

score 6.6k · Answer 13 · 2026-04-09 21:15:55

6.6k

Views

What is the difference between Relation and Cartesian product?

Published on 09 Apr 2026 - 21:15

score 533 · Answer 14 · 2026-04-11 18:11:10

533

Views

Why ordered n-tuple can be defined as a surjective function?

Published on 11 Apr 2026 - 18:11

score 56 · Answer 15 · 2026-04-11 07:05:18

56

Views

How to prove Countably infinite set.

Published on 11 Apr 2026 - 7:05

List Question

Cardinality of un-symmetric subsets of $\mathbb{R}^2$

Prove $2^N$ is uncountable or $2^N$ is equinumerous to power set of $N$.

Justifying the difference between countable and uncountable

Correct set notation with an indexed range

Infinite cartesian product of singletons

Proof of lemma about power set and one question.

Is the set $\{(x,y)| x^2+y^2 = \frac{1}{n^2}, n \in \Bbb{N}, x\in \Bbb{Q}$ or $y \in \Bbb{Q}\}$ countable?

Question about notation on the subject of Vector Spaces

Notation for a matrix populated with a Cartesian product of sets

What's the limit of a recursive superset operation called?

Center of interval belongs to interval

The special role of certain Sets in the theory of sets

What is the difference between Relation and Cartesian product?

Why ordered n-tuple can be defined as a surjective function?

How to prove Countably infinite set.

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