Revista Integración, temas de matemáticas.
Vol. 29 No. 2 (2011): Revista Integración, temas de matemáticas
Research and Innovation Articles

Recursion, induction and well-founded orders

Carlos Parra-Londoño
Universidad Nacional de Colombia
Bio
Diego Mejía-Guzmán
Kobe University
Bio

Published 2011-11-23

Keywords

  • recursion,
  • induction,
  • well-founded order

How to Cite

Parra-Londoño, C., & Mejía-Guzmán, D. (2011). Recursion, induction and well-founded orders. Revista Integración, Temas De matemáticas, 29(2), 143–150. Retrieved from https://revistas.uis.edu.co/index.php/revistaintegracion/article/view/2555

Abstract

Based on the characterization of the set of natural numbers by the recursion property, developed in [2], we prove in a general setting that the properties of recursion, induction and well-foundedness are equivalent for a given set. This result is extended to classes and is used to give another proof of the characterization of the set of natural numbers by recursion.

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References

[1] Kunen K., Set Theory. An Introduction to Independence Proofs, North-Holland, Amsterdam, 1980.

[2] Lawvere F.W., “An elementary theory of the category of sets (long version) with commentary”, Repr. Theory Appl. Categ. 11 (2005), 1-35.

[3] Levy A., Basic Set Theory, Dover, New York, 2002.