English

Local reflections of choice

Logic 2025-03-13 v3

Abstract

Under the assumption of small violations of choice with seed SS (SVC(S)\mathsf{SVC}(S)), the failure of many choice principles reflect to to local properties of SS, which can be a helpful characterisation for preservation proofs. We demonstrate the reflections of DC\mathsf{DC}, ACλ\mathsf{AC}_\lambda, PP\mathsf{PP}, and other important forms of choice. As a consequence, we show that if SS is infinite then SS can be partitioned into ω\omega many non-empty subsets.

Cite

@article{arxiv.2412.13785,
  title  = {Local reflections of choice},
  author = {Calliope Ryan-Smith},
  journal= {arXiv preprint arXiv:2412.13785},
  year   = {2025}
}

Comments

11 pages; accepted version

R2 v1 2026-06-28T20:40:22.985Z