A model with Suslin trees but no minimal uncountable linear orders other than $\omega_1$ and $-\omega_1$

Autor: Soukup, Dániel T.
Rok vydání: 2018
Předmět:
Druh dokumentu: Working Paper
Popis: We show that the existence of a Suslin tree does not necessarily imply that there are uncountable minimal linear orders other than $\omega_1$ and $-\omega_1$, answering a question of J. Baumgartner. This is done by a Jensen-type iteration, proving that one can force CH together with a restricted form of ladder system uniformization on trees, all while preserving a rigid Suslin tree.
Comment: 19 pages, 4 figures, first public version. Comments are very welcome. +minor corrections
Databáze: arXiv