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arXiv 1709.07341math.LO
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Presburger算术的自解

Interpretations of Presburger Arithmetic in Itself

Alexander Zapryagaev, Fedor Pakhomov

摘要:

Presburger算术PrA是自然数的加法理论。我们研究的解释PrA本身。我们证明了所有的一维自我解释是可定义同构的身份自我解释。为了证明结果,我们表明,所有的线性订单,是可解释的(N,+)是分散的订单与有限的Hausdorff秩和排名有界的维度方面的各自的解释。从我们关于PrA的自我解释的结果可以看出,PrA在其任何有限的子理论中都不是一维可解释的。我们注意到,后者是由A。维瑟

英文摘要:

Presburger arithmetic PrA is the true theory of natural numbers with addition. We study interpretations of PrA 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 (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 PrA it follows that PrA isn't one-dimensionally interpretable in any of its finite subtheories. We note that the latter was conjectured by A. Visser.

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