2018
Jul
11

# Logic Seminar - Assaf Shani - "Borel equivalence relations and symmetric models"

11:00am to 1:00pm

## Location:

Ross 70A

We develop a correspondence between the study of Borel equivalence relations induced by closed subgroups of $S_\infty$, and the study of symmetric models of set theory without choice, and apply it to prove a conjecture of Hjorth-Kechris-Louveau (1998).