Question

Showing that the class of finitely chromatic graphs is not closed under elementary equivalence without ultraproducts

score 171 · Answer 1 · 2026-04-16 21:03:31

171

Views

Showing that the class of finitely chromatic graphs is not closed under elementary equivalence without ultraproducts

Published on 16 Apr 2026 - 21:03

score 626 · Answer 2 · 2026-04-14 10:37:19

626

Views

Elementary proof of "irreducible polynomials remain irreducible over transcendental extension"?

Published on 14 Apr 2026 - 10:37

score 965 · Answer 3 · 2026-04-16 15:40:55

965

Views

Number of non-isomorphic models of the structure

Published on 16 Apr 2026 - 15:40

score 514 · Answer 4 · 2026-04-29 12:45:56

514

Views

Non-standard integers?

Published on 29 Apr 2026 - 12:45

score 133 · Answer 5 · 2026-04-18 16:05:07

133

Views

For an infinite group $G$, is the collection of all transitive $G$-sets first order elementary?

Published on 18 Apr 2026 - 16:05

score 54 · Answer 6 · 2026-04-13 02:00:18

If $M,N$ are structures of some first order language , $N$ is finite and $h: N \to M$ is an elementary embedding, then is $h$ an isomorphism?

score 411 · Answer 7 · 2026-04-11 19:12:36

411

Views

A topology on the set of all complete theories of a first order language

Published on 11 Apr 2026 - 19:12

score 633 · Answer 8 · 2026-04-14 20:36:07

633

Views

Using model theory to prove a Real Nullstellensatz?

Published on 14 Apr 2026 - 20:36

score 81 · Answer 9 · 2026-04-14 02:40:53

81

Views

Completeness and model completeness of the first order theory of faithful $G$-sets for a fixed infinite group $G$

Published on 14 Apr 2026 - 2:40

score 63 · Answer 10 · 2026-05-10 12:47:12

63

Views

Completeness and model completeness of the first order theory of Valuation rings

Published on 10 May 2026 - 12:47

score 63 · Answer 11 · 2026-05-11 01:36:50

63

Views

Logical expressivity and model classes

Published on 11 May 2026 - 1:36

score 173 · Answer 12 · 2026-05-10 16:13:40

173

Views

Since model theory must be founded in set theory, do you get different model theoretic results depending on your choice of set theory?

Published on 10 May 2026 - 16:13

score 82 · Answer 13 · 2026-05-10 23:32:05

82

Views

Does $L_\alpha\prec L_{\kappa^+}$?

Published on 10 May 2026 - 23:32

score 78 · Answer 14 · 2026-04-15 17:01:06

78

Views

Models in $L$ are models in $V$?

Published on 15 Apr 2026 - 17:01

score 41 · Answer 15 · 2026-05-10 13:51:38

41

Views

Help with fixing proof that transcendental extension of $\mathbb{Q}$ is dense in transcendental extension of $\mathbb{Q}_{p}$

Published on 10 May 2026 - 13:51

List Question

Showing that the class of finitely chromatic graphs is not closed under elementary equivalence without ultraproducts

Elementary proof of "irreducible polynomials remain irreducible over transcendental extension"?

Number of non-isomorphic models of the structure

Non-standard integers?

For an infinite group $G$, is the collection of all transitive $G$-sets first order elementary?

If $M,N$ are structures of some first order language , $N$ is finite and $h: N \to M$ is an elementary embedding, then is $h$ an isomorphism?

A topology on the set of all complete theories of a first order language

Using model theory to prove a Real Nullstellensatz?

Completeness and model completeness of the first order theory of faithful $G$-sets for a fixed infinite group $G$

Completeness and model completeness of the first order theory of Valuation rings

Logical expressivity and model classes

Since model theory must be founded in set theory, do you get different model theoretic results depending on your choice of set theory?

Does $L_\alpha\prec L_{\kappa^+}$?

Models in $L$ are models in $V$?

Help with fixing proof that transcendental extension of $\mathbb{Q}$ is dense in transcendental extension of $\mathbb{Q}_{p}$

Trending Questions

Popular # Hahtags

Popular Questions