Seminar
Logic Seminar
The Logic seminar is held on Wednesdays, usually at 12-14. During the spring 2025 we will have both on-site and online talks, and we try to keep the page updated on when we have which kind.
The permanent Zoom room for the seminar is: https://helsinki.zoom.us/j/62891400777?pwd=UldCeThTaTJVQjUzUFo4S2ErcndNQT09 (Meeting ID: 628 9140 0777, Passcode: 164195)
PLEASE NOTE: Due to the prevalence of zoom talks given by scholars based in various time zones, the times that the seminar meets will occasionally change from the usual 12-14 slot. Also, if not separately specified, the talks always start at a quarter past.
The seminar is led by prof. Juha Kontinen and Ulla Karhumäki.
Schedule of the spring term 2025
Wed 15.01.2025 12 -14, C124
No seminar
Wed 22.01.2025 12 -14, C124
Jouko Väänänen: The extended logic paradigm in inner model theory
Abstract: I consider inner models arising from extended logics, as in my joint paper with Kennedy and Magidor and in my previous talk 9.10.2024. I introduce a new inner model of this kind, denoted C2(omega), based on the second order logic in which second order variables
range over countable subsets of the domain. I give some results about large cardinals in C2(omega) and also about its relationship with C(aa). I also discuss the inner model HOD1 arising from existential second order logic. This is joint work with Menachem Magidor.
Wed 29.01.2025 12 -14, C124
Reijo Jaakkola: TBA
Wed 05.02.2025 12 -14, C124
TBA
Wed 12.02.2025 12 -14, C124
Sandra Mueller: TBA
Wed 19.02.2025 12 -14, C124
Ulla Karhumäki: TBA
Wed 26.02.2025 12 -14, C124
Andres Villaveces: TBA
Wed 05.03.2025, Exam week (no seminar)
Wed 12.03.2025 12 -14, C124
Nadja Hempel: TBA
Wed 19.03.2025 12 -14, C124
Melissa Antonelli: TBA
Wed 26.03.2025 12 -14, C124
Rosario Mennuni: TBA
Wed 02.04.2025 12 -14, C124
TBA
Wed 09.04.2025, 12-14, C124
TBA
Wed 16.04.2025, 12-14, C124
TBA
Wed 23.04.2025, Easter break (no seminar)
Wed 30.04.2025 12 -14, C124
TBA
Talks of the spring term 2023
Talks of the fall term 2022
Talks of the spring term 2022
Talks of the fall term 2021
Talks of the spring term 2021
Talks of the fall term 2020
Talks of the spring term 2020
Talks of the fall term 2019
Talks of the spring term 2019
Talks of the fall term 2018Seminar talks fall 2018
Talks of the spring term 2018Seminar talks spring 2018
Talks of the fall term 2017Seminar talks fall 2017
Talks of the spring term 2017Seminar talks spring 2017
Talks of the fall term 2016Seminar talks fall 2016
Talks of the spring term 2016Seminar talks spring 2016
Talks of the fall term 2015Seminar talks fall 2015
Talks of the spring term 2015Seminar talks spring 2015
Talks of the fall term 2014Seminar talks fall 2014
Talks of the spring term 2014Seminar talks spring 2014
Talks of the fall term 2013Seminar talks fall 2013
Talks of the spring term 2013Seminar talks spring 2013
Talks of the fall term 2012Seminar talks fall 2012
Older talks (2011-2012)