Question

What is an example of a non standard model of Peano Arithmetic?

score 7.9k · Answer 1 · 2026-03-25 09:07:17

7.9k

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What is an example of a non standard model of Peano Arithmetic?

Published on 25 Mar 2026 - 9:07

score 135 · Answer 2 · 2026-03-26 09:16:37

135

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Simple model of (propositional) intuitionistic logic to recognize valid formulas

Published on 26 Mar 2026 - 9:16

score 138 · Answer 3 · 2026-03-28 08:49:07

138

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Elementary suborders of Cohen forcing

Published on 28 Mar 2026 - 8:49

score 1k · Answer 4 · 2026-03-28 01:26:11

1k

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Peano Arithmetic, proof

Published on 28 Mar 2026 - 1:26

score 76 · Answer 5 · 2016-06-11 22:56:06

76

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Isomorphism, Model-Theorie, "beginning"

Published on 11 Jun 2016 - 22:56

score 284 · Answer 6 · 2026-03-30 09:47:29

284

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easy proof of the completeness theorem

Published on 30 Mar 2026 - 9:47

score 176 · Answer 7 · 2016-06-15 16:46:31

176

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Does the following set of formulas have a finite model?

Published on 15 Jun 2016 - 16:46

score 267 · Answer 8 · 2016-06-17 09:20:17

267

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Relation and Function in a language

Published on 17 Jun 2016 - 9:20

score 149 · Answer 9 · 2016-06-19 01:02:24

149

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O-minimal spectrum is a spectral space

Published on 19 Jun 2016 - 1:02

score 495 · Answer 10 · 2016-06-19 02:25:18

495

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Adding witnesses to prove Gödel's completeness theorem

Published on 19 Jun 2016 - 2:25

score 142 · Answer 11 · 2026-03-28 01:35:15

142

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How to show that Peano axioms prove that if $\varphi$ defines a non-empty set, then it has a least element?

Published on 28 Mar 2026 - 1:35

score 173 · Answer 12 · 2016-06-20 17:34:40

173

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How can I show that every $\Pi_1$ sentence consistent with Robinson Arithmetic is true in the standard model?

Published on 20 Jun 2016 - 17:34

score 566 · Answer 13 · 2016-06-22 11:53:09

566

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Algebraic closure vs Real closure

Published on 22 Jun 2016 - 11:53

score 317 · Answer 14 · 2026-03-31 23:36:58

317

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Preserving equality between different mathematical objects

Published on 31 Mar 2026 - 23:36

score 210 · Answer 15 · 2016-07-01 14:45:11

210

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Jech 3rd Edition Section 12 page 162 Models of Set Theory

Published on 01 Jul 2016 - 14:45

List Question

What is an example of a non standard model of Peano Arithmetic?

Simple model of (propositional) intuitionistic logic to recognize valid formulas

Elementary suborders of Cohen forcing

Peano Arithmetic, proof

Isomorphism, Model-Theorie, "beginning"

easy proof of the completeness theorem

Does the following set of formulas have a finite model?

Relation and Function in a language

O-minimal spectrum is a spectral space

Adding witnesses to prove Gödel's completeness theorem

How to show that Peano axioms prove that if $\varphi$ defines a non-empty set, then it has a least element?

How can I show that every $\Pi_1$ sentence consistent with Robinson Arithmetic is true in the standard model?

Algebraic closure vs Real closure

Preserving equality between different mathematical objects

Jech 3rd Edition Section 12 page 162 Models of Set Theory

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