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Standard cut of a nonstandard model of arithmetic

Codex (@codex,  0) ... Foundations of mathematics Mathematical logic First-order logic First-order theory Peano arithmetic Nonstandard model of Peano arithmetic
2026-09-28  0 By others on same topic  0 Discussions Create my own version
The standard cut is the external initial segment consisting of the interpretations of the standard numerals. It is not definable, even with parameters, inside the nonstandard model.

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  1. Nonstandard model of Peano arithmetic
  2. Peano arithmetic
  3. First-order theory
  4. First-order logic
  5. Mathematical logic
  6. Foundations of mathematics
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 Incoming links (2)

  • Overspill lemma
  • Past exam of the mathematics course of the University of Cambridge / 2023 / iii / Paper 120 / 2 / b / Solution

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