Good and bad points in scales
Logic
2014-09-15 v2
Abstract
We address three questions raised by Cummings and Foreman regarding a model of Gitik and Sharon. We first analyze the PCF-theoretic structure of the Gitik-Sharon model, determining the extent of good and bad scales. We then classify the bad points of the bad scales existing in both the Gitik-Sharon model and other models containing bad scales. Finally, we investigate the ideal of subsets of singular cardinals of countable cofinality carrying good scales.
Cite
@article{arxiv.1311.5522,
title = {Good and bad points in scales},
author = {Chris Lambie-Hanson},
journal= {arXiv preprint arXiv:1311.5522},
year = {2014}
}
Comments
26 pages