English

Elementary submodels, coding strategies, and an infinite real number game

Logic 2022-09-07 v1

Abstract

Matthew Baker investigated, in previous work, an elegant, infinite-length game that may be used to study subsets of real numbers. We present two accessible examples of how an important technique from set theory, or a different technique from infinite game theory, may be used to answer Baker's question on whether this game provides a precise characterization for countable subsets of real numbers, and we connect this game to the well-studied Banach-Mazur game from topology.

Keywords

Cite

@article{arxiv.2209.02593,
  title  = {Elementary submodels, coding strategies, and an infinite real number game},
  author = {Will Brian and Steven Clontz},
  journal= {arXiv preprint arXiv:2209.02593},
  year   = {2022}
}
R2 v1 2026-06-28T00:48:53.653Z