{"title":"On dp-minimal expansions of the integers","authors":"Eran Alouf","doi":"10.1016/j.apal.2024.103551","DOIUrl":null,"url":null,"abstract":"<div><div>We show that if <span><math><mi>Z</mi></math></span> is a dp-minimal expansion of <span><math><mo>(</mo><mi>Z</mi><mo>,</mo><mo>+</mo><mo>,</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>)</mo></math></span> that defines an infinite subset of <span><math><mi>N</mi></math></span>, then <span><math><mi>Z</mi></math></span> is interdefinable with <span><math><mo>(</mo><mi>Z</mi><mo>,</mo><mo>+</mo><mo>,</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>,</mo><mo><</mo><mo>)</mo></math></span>. As a corollary, we show the same for dp-minimal expansions of <span><math><mo>(</mo><mi>Z</mi><mo>,</mo><mo>+</mo><mo>,</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>)</mo></math></span> which do not eliminate <span><math><msup><mrow><mo>∃</mo></mrow><mrow><mo>∞</mo></mrow></msup></math></span>.</div></div>","PeriodicalId":50762,"journal":{"name":"Annals of Pure and Applied Logic","volume":"176 4","pages":"Article 103551"},"PeriodicalIF":0.6000,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Pure and Applied Logic","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168007224001556","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"LOGIC","Score":null,"Total":0}
引用次数: 0
Abstract
We show that if is a dp-minimal expansion of that defines an infinite subset of , then is interdefinable with . As a corollary, we show the same for dp-minimal expansions of which do not eliminate .
期刊介绍:
The journal Annals of Pure and Applied Logic publishes high quality papers in all areas of mathematical logic as well as applications of logic in mathematics, in theoretical computer science and in other related disciplines. All submissions to the journal should be mathematically correct, well written (preferably in English)and contain relevant new results that are of significant interest to a substantial number of logicians. The journal also considers submissions that are somewhat too long to be published by other journals while being too short to form a separate memoir provided that they are of particular outstanding quality and broad interest. In addition, Annals of Pure and Applied Logic occasionally publishes special issues of selected papers from well-chosen conferences in pure and applied logic.