Tait's conservative extension theorem revisited

Ryota Akiyoshi

Research output: Contribution to journal › Article

Abstract

This paper aims to give a correct proof of Tait's conservative extension theorem. Tait's own proof is flawed in the sense that there are some invalid steps in his argument, and there is a counterexample to the main theorem from which the conservative extension theorem is supposed to follow. However, an analysis of Tait's basic idea suggests a correct proof of the conservative extension theorem and a corrected version of the main theorem.

Original languageEnglish
Pages (from-to)155-167
Number of pages13
JournalJournal of Symbolic Logic
Volume75
Issue number1
DOIs
Publication statusPublished - 2010 Mar
Externally publishedYes

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Extension Theorem
Theorem
Counterexample
Conservative Extension

ASJC Scopus subject areas

  • Logic

Cite this

Tait's conservative extension theorem revisited. / Akiyoshi, Ryota.

In: Journal of Symbolic Logic, Vol. 75, No. 1, 03.2010, p. 155-167.

Research output: Contribution to journal › Article

Akiyoshi, R 2010, 'Tait's conservative extension theorem revisited', Journal of Symbolic Logic, vol. 75, no. 1, pp. 155-167. https://doi.org/10.2178/jsl/1264433913
Akiyoshi R. Tait's conservative extension theorem revisited. Journal of Symbolic Logic. 2010 Mar;75(1):155-167. https://doi.org/10.2178/jsl/1264433913
Akiyoshi, Ryota. / Tait's conservative extension theorem revisited. In: Journal of Symbolic Logic. 2010 ; Vol. 75, No. 1. pp. 155-167.
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