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Universally defining Z in Q with 10 quantifiers
Journal of the London Mathematical Society ( IF 1.2 ) Pub Date : 2024-01-31 , DOI: 10.1112/jlms.12864
Nicolas Daans 1, 2
Affiliation  

We show that for a global field K $K$ , every ring of S $S$ -integers has a universal first-order definition in K $K$ with 10 quantifiers. We also give a proof that every finite intersection of valuation rings of K $K$ has an existential first-order definition in K $K$ with 3 quantifiers.

中文翻译:

用 10 个量词普遍定义 Q 中的 Z

我们表明,对于全球领域 K $K$ , 每一个环 S $S$ -整数具有通用的一阶定义 K $K$ 有 10 个量词。我们还证明了评估环的每个有限交集 K $K$ 有一个存在的一阶定义 K $K$ 有3个量词。
更新日期:2024-02-01
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