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On the available partial respects in which an axiomatization for real valued arithmetic can recognize its consistency

Published online by Cambridge University Press:  12 March 2014

Dan E. Willard*
Affiliation:
Departments of Computer Science and Mathematics, University of Albany, Albany, NY 12222, USA, E-mail: dew@cs.albany.edu, URL: http://www.cs.albany.edu/~dew

Abstract

Gödel's Second Incompleteness Theorem states axiom systems of sufficient strength are unable to verify their own consistency. We will show that axiomatizations for a computer's floating point arithmetic can recognize their cut-free consistency in a stronger respect than is feasible under integer arithmetics. This paper will include both new generalizations of the Second Incompleteness Theorem and techniques for evading it.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 2006

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References

REFERENCES

[1]Adamowicz, Z., Herbrand consistency and bounded arithmetic, Fundamenta Mathematicae, vol. 171 (2002), pp. 279292.CrossRefGoogle Scholar
[2]Adamowicz, Z. and Zbierski, P., On Herbrand consistency in weak theories, Archive for Mathematical Logic, vol. 40 (2001), pp. 399413.CrossRefGoogle Scholar
[3]Atkinson, K., Elementary numerical analysis, Wiley Press, 1993.Google Scholar
[4]Bennett, J., On spectra, Ph.D. thesis, Princeton University, 1962.Google Scholar
[5]Bezboruah, A. and Shepherdson, J. C., Gödel's second incompleteness theorem for Q, this Journal, vol. 41 (1976), pp. 503512.Google Scholar
[6]Burden, R. and Faires, J., Numerical methods, Brookes-Cole, 2003.Google Scholar
[7]Gödel, K., Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme, Monatshefte für Mathematik und Physik, vol. 38 (1931), pp. 173198.CrossRefGoogle Scholar
[8]Hájek, P. and Pudlák, P., Metamathematics of first order arithmetic, Springer Verlag, 1991.Google Scholar
[9]Kleene, S. C., On the notation of ordinal numbers, this Journal, vol. 3 (1938), pp. 150156.Google Scholar
[10]Nelson, E., Predicative arithmetic, Princeton Math Notes Press, 1986.CrossRefGoogle Scholar
[11]Paris, J. B. and Dimitracopoulos, C., Truth definitions for Δ0 formulae, Logic and algorithmic, Monographic de L'Enseignement Mathematique, vol. 30, 1982, pp. 317329.Google Scholar
[12]Paris, J. B. and Dimitracopoulos, C., A note on the undefinability of cuts, this Journal, vol. 48 (1983), pp. 564569.Google Scholar
[13]Pudlák, P., Cuts, consistency statements and interpretations, this Journal, vol. 50(1985), pp. 423442.Google Scholar
[14]Pudlák, P., On the lengths of proofs of consistency, Collegium Logicum: Annals of the Kurt Goedel Society, vol. 2 (1996), pp. 6586, Springer-Wien.CrossRefGoogle Scholar
[15]Solovay, R. M., Several telephone conversations (during 1994) discussing how to modify Theorem 2.3 from Pudlák's article [13] with the methods of Nelson, and Wilki-Paris [10, 16]. (The Appendix A of [17] offers a 4-page interpretation of the underlying idea behind Solovay's unpublished observation.).Google Scholar
[16]Wilkie, A. J. and Paris, J. B., On the scheme of induction for bounded arithmetic, Annals on Pure and Applied Logic, vol. 35 (1987), pp. 261302.CrossRefGoogle Scholar
[17]Willard, D., Self-verifying systems, the incompleteness theorem and the tangibility reflection principle, this Journal, vol. 66 (2001), pp. 536596.Google Scholar
[18]Willard, D., How to extend the semantic tableaux and cut-free versions of the second incompleteness theorem almost to Robinson's arithmetic Q, this Journal, vol. 67 (2002), pp. 465496.Google Scholar
[19]Willard, D., A version of the second incompleteness theorem for axiom systems that recognize addition as a total function, First order logic revisited (Hendricks, V.et.al., editor), Logos Verlag, 2004, pp. 337368.Google Scholar
[20]Willard, D., An exploration of the partial respects in which an axiom system recognizing solely addition as a total function can verify its own consistency, this Journal, vol. 70 (2005), pp. 11711209.Google Scholar
[21]Willard, D., A new variant of Hilbert styled generalization of the second incompleteness theorem and some exceptions to it, Annals on Pure and Applied Logic, vol. 141 (2006), pp. 472496.CrossRefGoogle Scholar
[22]Wrathall, C., Rudimentary predicates and relative computation, Siam Journal on Computing, vol. 7 (1978), pp. 194209.CrossRefGoogle Scholar