Interpretations of Presburger Arithmetic in Itself

Autor: Alexander Zapryagaev, Fedor Pakhomov
Rok vydání: 2017
Předmět:
Zdroj: Logical Foundations of Computer Science ISBN: 9783319720555
LFCS
DOI: 10.1007/978-3-319-72056-2_22
Popis: Presburger arithmetic \(\mathop {\mathbf {PrA}}\nolimits \) is the true theory of natural numbers with addition. We study interpretations of \(\mathop {\mathbf {PrA}}\nolimits \) in itself. We prove that all one-dimensional self-interpretations are definably isomorphic to the identity self-interpretation. In order to prove the results we show that all linear orders that are interpretable in \((\mathbb {N},+)\) are scattered orders with the finite Hausdorff rank and that the ranks are bounded in terms of the dimension of the respective interpretations. From our result about self-interpretations of \(\mathop {\mathbf {PrA}}\nolimits \) it follows that \(\mathop {\mathbf {PrA}}\nolimits \) isn’t one-dimensionally interpretable in any of its finite subtheories. We note that the latter was conjectured by A. Visser.
Databáze: OpenAIRE