Question

Some doubt about minimal antichain cover of poset.

score 144 · Answer 1 · 2026-04-29 12:08:09

144

Views

Some doubt about minimal antichain cover of poset.

Published on 29 Apr 2026 - 12:08

score 415 · Answer 2 · 2026-05-02 18:30:18

415

Views

Partially ordered sets that has maximal element but no last element

Published on 02 May 2026 - 18:30

score 73 · Answer 3 · 2026-04-29 12:08:04

73

Views

Ordered set and minimal element

Published on 29 Apr 2026 - 12:08

score 46 · Answer 4 · 2026-04-30 02:48:26

46

Views

Order relation proof ...

Published on 30 Apr 2026 - 2:48

score 225 · Answer 5 · 2026-05-07 20:18:20

225

Views

Lexicographical covering of boolean poset

Published on 07 May 2026 - 20:18

score 190 · Answer 6 · 2026-04-29 12:08:03

190

Views

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

Published on 29 Apr 2026 - 12:08

score 84 · Answer 7 · 2026-05-06 02:43:19

84

Views

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

Published on 06 May 2026 - 2:43

score 362 · Answer 8 · 2026-05-02 18:44:19

362

Views

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

Published on 02 May 2026 - 18:44

score 98 · Answer 9 · 2026-04-29 12:08:09

98

Views

Comparing orders induced by euclidean function and divisibility in euclidean domain

Published on 29 Apr 2026 - 12:08

score 270 · Answer 10 · 2026-05-07 08:40:49

270

Views

Embedding from Rational Numbers to Ordered Field is Order Preserving

Published on 07 May 2026 - 8:40

score 113 · Answer 11 · 2026-05-07 16:54:00

113

Views

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

Published on 07 May 2026 - 16:54

score 77 · Answer 12 · 2026-05-10 12:28:58

77

Views

Isomorphic sets

Published on 10 May 2026 - 12:28

score 213 · Answer 13 · 2026-05-10 12:32:51

213

Views

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

Published on 10 May 2026 - 12:32

score 149 · Answer 14 · 2026-04-29 12:09:54

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

score 779 · Answer 15 · 2026-05-10 12:34:19

779

Views

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 10 May 2026 - 12:34

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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