Three forms of the Erdős–Dushnik–Miller theorem

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Authors: Paul Howard, Eleftherios Tachtsis
Cited by: 0

Abstract

We continue the study of the Erdős–Dushnik–Miller theorem (A graph with an uncountable set of vertices has either an infinite independent set or an uncountable clique) in set theory without the axiom of choice. We show that there are three inequivalent versions of this theorem and we give some results about the positions of these versions in the deductive hierarchy of weak choice principles. Furthermore, we settle some open problems from Tachtsis [Monatsh. Math. 203 (2024), 677–693] and from Banerjee and Gopaulsingh [Bull. Polish Acad. Sci. Math. 71 (2023), 1–21].

Fields of Study & Subjects

Advanced Topology and Set Theory Limits and Structures in Graph Theory Advanced Combinatorial Mathematics

Publication details

Journal / source
Fundamenta Mathematicae
Publication date
14 January 2026
Language
EN