Fragments of Arithmetic and true sentenc
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Andrés Cordón-Franco; Alejandro Fernández-Margarit; F. Félix Lara-Martín
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Article
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2005
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John Wiley and Sons
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English
⚖ 246 KB
Paris and C. Dimitracopoulos, the class of the Πn+1-sentences true in the standard model is the only (up to deductive equivalence) consistent Πn+1-theory which extends the scheme of induction for parameter free Πn+1-formulas. Motivated by this result, we present a systematic study of extensions of b