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Burgess’ PV is Robinson’s Q

Published online by Cambridge University Press:  12 March 2014

Mihai Ganea*
Affiliation:
Department of Philosophy, University of Illinois at Chicago, Chicago, Illinois 60607-7114, USA, E-mail: mig@uic.edu

Abstract

In [2] John Burgess describes predicative versions of Frege's logic and poses the problem of finding their exact arithmetical strength. I prove here that PV, the simplest such theory, is equivalent to Robinson's arithmetical theory Q.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 2007

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References

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