Question

Details of this definition of an initial segment of a binary structure

score 36 · Answer 1 · 2026-04-17 09:44:03

36

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Details of this definition of an initial segment of a binary structure

Published on 17 Apr 2026 - 9:44

score 32 · Answer 2 · 2026-04-14 01:22:19

32

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Prove that $(A_1 \cup A_2, R)$ is a well-ordered poset

Published on 14 Apr 2026 - 1:22

score 106 · Answer 3 · 2026-04-15 06:42:52

106

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Lattice of chains of a poset?

Published on 15 Apr 2026 - 6:42

score 288 · Answer 4 · 2026-04-12 17:27:53

288

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Does every finite graded poset appear as a graded induced subposet of the power-set poset?

Published on 12 Apr 2026 - 17:27

score 204 · Answer 5 · 2026-04-14 19:50:43

204

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Discrete, dense, and continuous trees

Published on 14 Apr 2026 - 19:50

score 724 · Answer 6 · 2026-04-14 05:16:30

724

Views

The theory of dense linear orderings without endpoints is not $\lambda$ categorical for any uncountable $\lambda$.

Published on 14 Apr 2026 - 5:16

score 123 · Answer 7 · 2026-04-14 02:16:30

123

Views

Terms and notation for the sets of upper and lower bounds of a given set.

Published on 14 Apr 2026 - 2:16

score 91 · Answer 8 · 2026-04-11 08:23:35

91

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Does every finite poset have a rigid endomorphism?

Published on 11 Apr 2026 - 8:23

score 309 · Answer 9 · 2026-03-25 14:28:53

309

Views

What is Arithmetic Continuum

Published on 25 Mar 2026 - 14:28

score 138 · Answer 10 · 2026-04-13 10:37:22

138

Views

Prove that the relation $\subseteq$ over $℘(\mathbb{N})$ is not well-founded.

Published on 13 Apr 2026 - 10:37

score 279 · Answer 11 · 2026-04-12 17:40:09

279

Views

Are these orders isomorphic?

Published on 12 Apr 2026 - 17:40

score 49 · Answer 12 · 2026-04-11 00:51:26

49

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How does Kunen's definitions of chains and antichains relate to more common definitions?

Published on 11 Apr 2026 - 0:51

score 101 · Answer 13 · 2026-04-13 19:38:12

101

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Cycle-tree order relation

Published on 13 Apr 2026 - 19:38

score 294 · Answer 14 · 2026-04-13 05:36:28

294

Views

Show that $P$ is the union of $k$ chains .

Published on 13 Apr 2026 - 5:36

score 247 · Answer 15 · 2026-04-14 10:51:06

247

Views

Prove partial order of all Strings of digits {0,1...9}, by u ⪯ v if and only if u is a prefix of v

Published on 14 Apr 2026 - 10:51

List Question

Details of this definition of an initial segment of a binary structure

Prove that $(A_1 \cup A_2, R)$ is a well-ordered poset

Lattice of chains of a poset?

Does every finite graded poset appear as a graded induced subposet of the power-set poset?

Discrete, dense, and continuous trees

The theory of dense linear orderings without endpoints is not $\lambda$ categorical for any uncountable $\lambda$.

Terms and notation for the sets of upper and lower bounds of a given set.

Does every finite poset have a rigid endomorphism?

What is Arithmetic Continuum

Prove that the relation $\subseteq$ over $℘(\mathbb{N})$ is not well-founded.

Are these orders isomorphic?

How does Kunen's definitions of chains and antichains relate to more common definitions?

Cycle-tree order relation

Show that $P$ is the union of $k$ chains .

Prove partial order of all Strings of digits {0,1...9}, by u ⪯ v if and only if u is a prefix of v

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