Lipschitz and Wadge binary games in second order arithmetic

IF 0.6 2区数学 Q2 LOGIC

Annals of Pure and Applied Logic Pub Date : 2023-10-01 DOI:10.1016/j.apal.2023.103301

Andrés Cordón-Franco , F. Félix Lara-Martín , Manuel J.S. Loureiro

引用次数: 1

Abstract

We present a detailed formalization of Lipschitz and Wadge games in the context of second order arithmetic and we investigate the logical strength of Lipschitz and Wadge determinacy, and the tightly related Semi-Linear Ordering principle, for the first levels of the Hausdorff difference hierarchy in the Cantor space. As a result, we obtain characterizations of ${WKL}_{0}$ and ${ACA}_{0}$ in terms of these determinacy principles.

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二阶算术的Lipschitz和Wadge二进制对策

在二阶算术的背景下，我们给出了Lipschitz和Wadge对策的详细形式化，并研究了Cantor空间中Hausdorff差分层次的一阶的Lipschitz-Wadge确定性的逻辑强度，以及紧密相关的半线性排序原理。结果，我们根据这些确定性原理得到了WKL0和ACA0的特征。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annals of Pure and Applied Logic 数学-数学

CiteScore

1.40

自引率

12.50%

发文量

审稿时长

200 days

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.