Question

Directed set and partially/totally ordered sets.

score 724 · Answer 1 · 2026-03-25 23:35:21

724

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Directed set and partially/totally ordered sets.

Published on 25 Mar 2026 - 23:35

score 1.7k · Answer 2 · 2026-03-25 15:50:22

1.7k

Views

Boolean Algebra: Demonstrate that the pentagon lattice is non-distributive

Published on 25 Mar 2026 - 15:50

score 178 · Answer 3 · 2026-03-26 21:26:23

178

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How can I compute the 'average rank' of an infinite set?

Published on 26 Mar 2026 - 21:26

score 355 · Answer 4 · 2026-03-25 08:09:41

355

Views

Adjoint of the inclusion functor from Preord to Cat

Published on 25 Mar 2026 - 8:09

score 66 · Answer 5 · 2019-04-25 12:54:01

In an infinite linearly ordered set every initial section is finite. ¿Is it isomorphic to $\langle\mathbb{N}\,,\,\text{<}_{\mathbb{N}}\rangle$?

score 151 · Answer 6 · 2019-04-25 14:22:02

151

Views

How to Compute the Pareto-front of this set?

Published on 25 Apr 2019 - 14:22

score 818 · Answer 7 · 2019-04-25 15:39:09

818

Views

Combinatorics problem, right solution?

Published on 25 Apr 2019 - 15:39

score 391 · Answer 8 · 2019-04-25 19:15:55

391

Views

Determine which pairs of linearly ordered sets are order isomorphic

Published on 25 Apr 2019 - 19:15

score 92 · Answer 9 · 2019-04-27 15:55:47

92

Views

Prove if there is no strictly decreasing sequence of elements in linear order A, then A is well ordered

Published on 27 Apr 2019 - 15:55

score 74 · Answer 10 · 2019-04-27 18:54:31

74

Views

How to understand the proof of the below statement similar to Zorn's lemma?

Published on 27 Apr 2019 - 18:54

score 513 · Answer 11 · 2019-04-28 11:31:47

513

Views

Counterexample: a pair of linearly ordered sets that are isomorphic to subsets of the other, but not isomorphic between them

Published on 28 Apr 2019 - 11:31

score 39 · Answer 12 · 2026-03-26 06:28:22

39

Views

I need to come up with a rule for a set and their relation

Published on 26 Mar 2026 - 6:28

score 42 · Answer 13 · 2019-04-28 17:23:56

42

Views

Is There A Name For This Type Of Partially Ordered Set

Published on 28 Apr 2019 - 17:23

score 77 · Answer 14 · 2019-04-29 17:33:41

77

Views

Natural cut of a cyclically ordered group

Published on 29 Apr 2019 - 17:33

score 689 · Answer 15 · 2019-04-30 09:59:30

689

Views

Why does the set $\{1,3,5,7... ; 2,4,6,8...\}$ qualify as well-ordered? How to explain this notation?

Published on 30 Apr 2019 - 9:59

List Question

Directed set and partially/totally ordered sets.

Boolean Algebra: Demonstrate that the pentagon lattice is non-distributive

How can I compute the 'average rank' of an infinite set?

Adjoint of the inclusion functor from Preord to Cat

In an infinite linearly ordered set every initial section is finite. ¿Is it isomorphic to $\langle\mathbb{N}\,,\,\text{<}_{\mathbb{N}}\rangle$?

How to Compute the Pareto-front of this set?

Combinatorics problem, right solution?

Determine which pairs of linearly ordered sets are order isomorphic

Prove if there is no strictly decreasing sequence of elements in linear order A, then A is well ordered

How to understand the proof of the below statement similar to Zorn's lemma?

Counterexample: a pair of linearly ordered sets that are isomorphic to subsets of the other, but not isomorphic between them

I need to come up with a rule for a set and their relation

Is There A Name For This Type Of Partially Ordered Set

Natural cut of a cyclically ordered group

Why does the set $\{1,3,5,7... ; 2,4,6,8...\}$ qualify as well-ordered? How to explain this notation?

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