{"title":"列表的无量纲归纳法","authors":"Stefan Hetzl, Jannik Vierling","doi":"10.1007/s00153-024-00923-8","DOIUrl":null,"url":null,"abstract":"<div><p>We investigate quantifier-free induction for Lisp-like lists constructed inductively from the empty list <span>\\( nil \\)</span> and the operation <span>\\({\\textit{cons}}\\)</span>, that adds an element to the front of a list. First we show that, for <span>\\(m \\ge 1\\)</span>, quantifier-free <span>\\(m\\)</span>-step induction does not simulate quantifier-free <span>\\((m + 1)\\)</span>-step induction. Secondly, we show that for all <span>\\(m \\ge 1\\)</span>, quantifier-free <span>\\(m\\)</span>-step induction does not prove the right cancellation property of the concatenation operation on lists defined by left-recursion.\n</p></div>","PeriodicalId":48853,"journal":{"name":"Archive for Mathematical Logic","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2024-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00153-024-00923-8.pdf","citationCount":"0","resultStr":"{\"title\":\"Quantifier-free induction for lists\",\"authors\":\"Stefan Hetzl, Jannik Vierling\",\"doi\":\"10.1007/s00153-024-00923-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We investigate quantifier-free induction for Lisp-like lists constructed inductively from the empty list <span>\\\\( nil \\\\)</span> and the operation <span>\\\\({\\\\textit{cons}}\\\\)</span>, that adds an element to the front of a list. First we show that, for <span>\\\\(m \\\\ge 1\\\\)</span>, quantifier-free <span>\\\\(m\\\\)</span>-step induction does not simulate quantifier-free <span>\\\\((m + 1)\\\\)</span>-step induction. Secondly, we show that for all <span>\\\\(m \\\\ge 1\\\\)</span>, quantifier-free <span>\\\\(m\\\\)</span>-step induction does not prove the right cancellation property of the concatenation operation on lists defined by left-recursion.\\n</p></div>\",\"PeriodicalId\":48853,\"journal\":{\"name\":\"Archive for Mathematical Logic\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.3000,\"publicationDate\":\"2024-04-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s00153-024-00923-8.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Archive for Mathematical Logic\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00153-024-00923-8\",\"RegionNum\":4,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Arts and Humanities\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archive for Mathematical Logic","FirstCategoryId":"100","ListUrlMain":"https://link.springer.com/article/10.1007/s00153-024-00923-8","RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Arts and Humanities","Score":null,"Total":0}
We investigate quantifier-free induction for Lisp-like lists constructed inductively from the empty list \( nil \) and the operation \({\textit{cons}}\), that adds an element to the front of a list. First we show that, for \(m \ge 1\), quantifier-free \(m\)-step induction does not simulate quantifier-free \((m + 1)\)-step induction. Secondly, we show that for all \(m \ge 1\), quantifier-free \(m\)-step induction does not prove the right cancellation property of the concatenation operation on lists defined by left-recursion.
期刊介绍:
The journal publishes research papers and occasionally surveys or expositions on mathematical logic. Contributions are also welcomed from other related areas, such as theoretical computer science or philosophy, as long as the methods of mathematical logic play a significant role. The journal therefore addresses logicians and mathematicians, computer scientists, and philosophers who are interested in the applications of mathematical logic in their own field, as well as its interactions with other areas of research.