On sigma-entangled linear orders
Logic
2016-09-06 v1 General Topology
Abstract
We investigate sigma-entangled linear orders and narrowness of Boolean algebras. We show existence of sigma-entangled linear orders in many cardinals, and we build Boolean algebras with neither large chains nor large pies. We study the behavior of these notions in ultraproducts.
Cite
@article{arxiv.math/9609216,
title = {On sigma-entangled linear orders},
author = {Saharon Shelah},
journal= {arXiv preprint arXiv:math/9609216},
year = {2016}
}