Question

Some doubt about minimal antichain cover of poset.

score 137 · Answer 1 · 2026-03-21 04:08:11

137

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Some doubt about minimal antichain cover of poset.

Published on 21 Mar 2026 - 4:08

score 408 · Answer 2 · 2026-03-24 16:34:21

408

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Partially ordered sets that has maximal element but no last element

Published on 24 Mar 2026 - 16:34

score 59 · Answer 3 · 2026-03-22 06:03:59

59

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Ordered set and minimal element

Published on 22 Mar 2026 - 6:03

score 36 · Answer 4 · 2026-03-20 15:15:07

36

Views

Order relation proof ...

Published on 20 Mar 2026 - 15:15

score 213 · Answer 5 · 2026-03-22 04:14:49

213

Views

Lexicographical covering of boolean poset

Published on 22 Mar 2026 - 4:14

score 183 · Answer 6 · 2026-03-20 00:27:45

183

Views

Every linearly-ordered real-parametrized family of asymptotic classes is nowhere dense?

Published on 20 Mar 2026 - 0:27

score 71 · Answer 7 · 2026-03-20 04:57:34

71

Views

Is there a name for this property on a binary relation?

Published on 20 Mar 2026 - 4:57

score 353 · Answer 8 · 2026-03-21 01:26:12

353

Views

Is the forgetful functor from $\mathbf{Poset}$ to $\mathbf{Set}$ represented by the object 2?

Published on 21 Mar 2026 - 1:26

score 91 · Answer 9 · 2026-03-22 03:36:43

91

Views

Comparing orders induced by euclidean function and divisibility in euclidean domain

Published on 22 Mar 2026 - 3:36

score 263 · Answer 10 · 2026-03-20 11:42:00

263

Views

Embedding from Rational Numbers to Ordered Field is Order Preserving

Published on 20 Mar 2026 - 11:42

score 104 · Answer 11 · 2026-03-19 22:04:38

104

Views

Riesz space of functions from any set $X$ to $\mathbb{R}$

Published on 19 Mar 2026 - 22:04

score 69 · Answer 12 · 2026-03-22 04:28:48

69

Views

Isomorphic sets

Published on 22 Mar 2026 - 4:28

score 208 · Answer 13 · 2026-03-24 23:44:26

208

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$\mathbb{N}\times\mathbb{Q}$ isomorphic to $\mathbb{Q}\times\mathbb{N}$

Published on 24 Mar 2026 - 23:44

score 145 · Answer 14 · 2026-03-24 23:45:51

$\langle \mathbb{R} \times \mathbb{R}, \le_\text{lex} \rangle$ and $\langle \mathbb{R} \times \mathbb{Q}, \le_\text{lex} \rangle$ are not isomorphic

score 773 · Answer 15 · 2026-03-24 22:08:42

773

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Given two arbitrary Orderings R and S on an arbitrary set X, decide whether a) $R∩S$ b) $R\cup S$ c) $R\circ S$ necessarily be an ordering.

Published on 24 Mar 2026 - 22:08

List Question

Some doubt about minimal antichain cover of poset.

Partially ordered sets that has maximal element but no last element

Ordered set and minimal element

Order relation proof ...

Lexicographical covering of boolean poset

Every linearly-ordered real-parametrized family of asymptotic classes is nowhere dense?

Is there a name for this property on a binary relation?

Is the forgetful functor from $\mathbf{Poset}$ to $\mathbf{Set}$ represented by the object 2?

Comparing orders induced by euclidean function and divisibility in euclidean domain

Embedding from Rational Numbers to Ordered Field is Order Preserving

Riesz space of functions from any set $X$ to $\mathbb{R}$

Isomorphic sets

$\mathbb{N}\times\mathbb{Q}$ isomorphic to $\mathbb{Q}\times\mathbb{N}$

$\langle \mathbb{R} \times \mathbb{R}, \le_\text{lex} \rangle$ and $\langle \mathbb{R} \times \mathbb{Q}, \le_\text{lex} \rangle$ are not isomorphic

Given two arbitrary Orderings R and S on an arbitrary set X, decide whether a) $R∩S$ b) $R\cup S$ c) $R\circ S$ necessarily be an ordering.

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