Reflection principles for ω2 and the semi-stationary reflection principle
キーワード:
stationary reflection principle,
semi-stationary reflection principle,
Fodor-type reflection principle
2016 年 68 巻 3 号 p. 1081-1098
詳細
2016 年 68 巻 3 号 p. 1081-1098
Starting from a model with a weakly compact cardinal, we construct a model in which the weak stationary reflection principle for ω2 holds but the Fodor-type reflection principle for ω2 fails. So the stationary reflection principle for ω2 fails in this model. We also construct a model in which the semi-stationary reflection principle holds but the Fodor-type reflection principle for ω2 fails.
この記事は最新の被引用情報を取得できません。
