# Szymon Żeberski: Applications of Shoenfield Absoluteness Lemma

Tuesday, June 2, 2015, 17:15
Wrocław University of Technology, 215 D-1

Speaker: Szymon Żeberski (Wrocław University of Technology)

Title: Applications of Shoenfield Absoluteness Lemma

Abstract:

We will recall Shoenfield Absoluteness Lemma about $\Sigma^1_2$ sentences. We will show applications of this theorem connected to topological and algebraic structure of Polish spaces in publications co-authored by the speaker.