Question

What are some ways of showing that a structure is not minimal?

score 56 · Answer 1 · 2013-09-12 01:42:57

56

Views

What are some ways of showing that a structure is not minimal?

Published on 12 Sep 2013 - 1:42

score 245 · Answer 2 · 2013-09-12 15:16:44

245

Views

An exercise in stability theory

Published on 12 Sep 2013 - 15:16

score 410 · Answer 3 · 2013-09-15 14:13:49

410

Views

Elementary equivalence of polynomial rings

Published on 15 Sep 2013 - 14:13

score 1.8k · Answer 4 · 2026-03-28 05:00:50

1.8k

Views

Neither Even Nor Odd Natural Numbers

Published on 28 Mar 2026 - 5:00

score 620 · Answer 5 · 2026-03-28 10:04:22

620

Views

Models of real numbers combined with Peano axioms

Published on 28 Mar 2026 - 10:04

score 1.9k · Answer 6 · 2026-04-01 10:44:14

1.9k

Views

Is there a Second-Order Axiomatization of ZF(C) which is categorical?

Published on 01 Apr 2026 - 10:44

score 138 · Answer 7 · 2013-09-22 01:10:34

138

Views

About a sentence in logic theory that I don't understand.

Published on 22 Sep 2013 - 1:10

score 53 · Answer 8 · 2013-09-23 16:00:17

53

Views

Graphs: First Order Characterisation Of A path

Published on 23 Sep 2013 - 16:00

score 101 · Answer 9 · 2013-09-27 17:02:05

101

Views

Question on a Theorem from Chang-Keisler's Model Theory concerning $\Sigma^0_n$ sentences

Published on 27 Sep 2013 - 17:02

score 238 · Answer 10 · 2026-04-01 10:42:36

238

Views

Quantification and logical relations, shorthand notation $\forall/\exists x \in M...$

Published on 01 Apr 2026 - 10:42

score 129 · Answer 11 · 2013-09-28 02:53:47

129

Views

Is there a generic definition of "strongly indistinguishable"?

Published on 28 Sep 2013 - 2:53

score 227 · Answer 12 · 2026-03-31 20:33:16

227

Views

Does the language of group theory need a constant?

Published on 31 Mar 2026 - 20:33

score 1.2k · Answer 13 · 2013-10-03 19:35:02

1.2k

Views

Showing the every consistent set of sentences has a model

Published on 03 Oct 2013 - 19:35

score 834 · Answer 14 · 2013-10-05 06:20:18

834

Views

Find a set of sentences $\Sigma$ such that the set of all models of $\Sigma$ is countably infinite.

Published on 05 Oct 2013 - 6:20

score 381 · Answer 15 · 2013-10-06 09:06:37

381

Views

"Amalgamation" of elementary equivalent structures

Published on 06 Oct 2013 - 9:06

List Question

What are some ways of showing that a structure is not minimal?

An exercise in stability theory

Elementary equivalence of polynomial rings

Neither Even Nor Odd Natural Numbers

Models of real numbers combined with Peano axioms

Is there a Second-Order Axiomatization of ZF(C) which is categorical?

About a sentence in logic theory that I don't understand.

Graphs: First Order Characterisation Of A path

Question on a Theorem from Chang-Keisler's Model Theory concerning $\Sigma^0_n$ sentences

Quantification and logical relations, shorthand notation $\forall/\exists x \in M...$

Is there a generic definition of "strongly indistinguishable"?

Does the language of group theory need a constant?

Showing the every consistent set of sentences has a model

Find a set of sentences $\Sigma$ such that the set of all models of $\Sigma$ is countably infinite.

"Amalgamation" of elementary equivalent structures

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