Synthese

, Volume 148, Issue 3, pp 719–743 | Cite as

Theories and Ordinals in Proof Theory

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Astract

How do ordinals measure the strength and computational power of formal theories? This paper is concerned with the connection between ordinal representation systems and theories established in ordinal analyses. It focusses on results which explain the nature of this connection in terms of semantical and computational notions from model theory, set theory, and generalized recursion theory.

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© Springer 2006

Authors and Affiliations

  1. 1.Department of Pure MathematicsUniversity of LeedsLeedsGreat Britain

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