TRANSITIVITY, LOWNESS, AND RANKS IN NSOP THEORIES

TRANSITIVITY, LOWNESS, AND RANKS IN NSOP THEORIES
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NSOP 理论中的传递性、低度和等级

DOI:
10.1017/jsl.2023.36
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发表时间:
2023
期刊:
The Journal of Symbolic Logic
影响因子:
--
通讯作者:
RAMSEY, NICHOLAS
RAMSEY, NICHOLAS
中科院分区:
--
文献类型:
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作者:
CHERNIKOV, ARTEM;KIM, BYUNGHAN;RAMSEY, NICHOLAS

文献摘要

相似文献

我们在满足存在性公理的NSOP理论的背景下发展了Kim独立性理论。我们表明,在这样的理论中,Kim独立是传递的,并且-Morley序列见证Kim划分。作为应用,我们表明,存在的假设下,在一个低的NSOP理论,Shelah强类型和Lascar强类型重合,此外,我们引入了一个概念的秩的NSOP理论。
We develop the theory of Kim-independence in the context of NSOPtheories satisfying the existence axiom. We show that, in such theories, Kim-independence is transitive and that-Morley sequences witness Kim-dividing. As applications, we show that, under the assumption of existence, in a low NSOPtheory, Shelah strong types and Lascar strong types coincide and, additionally, we introduce a notion of rank for NSOPtheories.