Question

Anti-ideals in $\Bbb{Z}$ form a matroid, so all maximal anti-ideals are in bijection?

score 32 · Answer 1 · 2026-03-25 03:03:43

32

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Anti-ideals in $\Bbb{Z}$ form a matroid, so all maximal anti-ideals are in bijection?

Published on 25 Mar 2026 - 3:03

score 41 · Answer 2 · 2026-03-25 03:04:05

41

Views

The collection of anti-ideals of a ring forms a matroid?

Published on 25 Mar 2026 - 3:04

score 114 · Answer 3 · 2018-11-02 15:42:41

114

Views

Prove that, there exist uncountably many multiplicative maps from $\Bbb{Q}^\ast\to\Bbb{Z}$

Published on 02 Nov 2018 - 15:42

score 142 · Answer 4 · 2026-02-23 01:05:10

142

Views

Relation between primeness and co-primeness of integers

Published on 23 Feb 2026 - 1:05

score 300 · Answer 5 · 2018-11-03 03:52:51

300

Views

What is wrong with the followig proof that $\mathbb{Z}$ is isomorphic to $\mathbb{Z} \times \mathbb{Z}$

Published on 03 Nov 2018 - 3:52

score 43 · Answer 6 · 2018-11-04 02:28:59

43

Views

How to define a function so that $a<f(n)<b$?

Published on 04 Nov 2018 - 2:28

score 685 · Answer 7 · 2026-02-23 01:05:33

685

Views

Showing that two binomials are relatively prime for all positive integers (Euclidean ?)

Published on 23 Feb 2026 - 1:05

score 214 · Answer 8 · 2018-11-05 18:17:14

214

Views

For any positive integer $n$, prove the following inequality.

Published on 05 Nov 2018 - 18:17

score 123 · Answer 9 · 2026-03-25 08:10:49

123

Views

If $\frac{x^2}{4}$ is an integer greater than 50, then what is the smallest possible value of $x^2$

Published on 25 Mar 2026 - 8:10

score 144 · Answer 10 · 2026-03-26 19:01:09

144

Views

Proving that the inverse of 2 is not an integer

Published on 26 Mar 2026 - 19:01

score 61 · Answer 11 · 2018-11-07 07:09:30

61

Views

Concerning the product of all unique positive divisors

Published on 07 Nov 2018 - 7:09

score 222 · Answer 12 · 2026-03-26 13:07:39

222

Views

Optimizing a sum function for computing

Published on 26 Mar 2026 - 13:07

score 388 · Answer 13 · 2018-11-07 17:33:28

388

Views

Solutions to homogeneous linear system of equations over the integers.

Published on 07 Nov 2018 - 17:33

score 283 · Answer 14 · 2026-03-25 06:48:09

283

Views

Algorithm to find amount of unique number sequences without repeating numbers?

Published on 25 Mar 2026 - 6:48

score 86 · Answer 15 · 2026-03-26 02:56:22

86

Views

For $s, t \in \{-\lfloor (n-1)/2 \rfloor, \dots, -1, 0, 1, \dots, \lfloor n/2 \rfloor \}$, $n \in \mathbb{Z}_{ > 0}$, show $s-t \neq \ell n$

Published on 26 Mar 2026 - 2:56

List Question

Anti-ideals in $\Bbb{Z}$ form a matroid, so all maximal anti-ideals are in bijection?

The collection of anti-ideals of a ring forms a matroid?

Prove that, there exist uncountably many multiplicative maps from $\Bbb{Q}^\ast\to\Bbb{Z}$

Relation between primeness and co-primeness of integers

What is wrong with the followig proof that $\mathbb{Z}$ is isomorphic to $\mathbb{Z} \times \mathbb{Z}$

How to define a function so that $a<f(n)<b$?

Showing that two binomials are relatively prime for all positive integers (Euclidean ?)

For any positive integer $n$, prove the following inequality.

If $\frac{x^2}{4}$ is an integer greater than 50, then what is the smallest possible value of $x^2$

Proving that the inverse of 2 is not an integer

Concerning the product of all unique positive divisors

Optimizing a sum function for computing

Solutions to homogeneous linear system of equations over the integers.

Algorithm to find amount of unique number sequences without repeating numbers?

For $s, t \in \{-\lfloor (n-1)/2 \rfloor, \dots, -1, 0, 1, \dots, \lfloor n/2 \rfloor \}$, $n \in \mathbb{Z}_{ > 0}$, show $s-t \neq \ell n$

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