Logisch-Philosophische Abhandlung – Tractatus Logico-Philosophicus
1921 – 2021
A Series of Centennial Lectures

The Joint Research Center in Logic of Tsinghua University and the University of Amsterdam (tsinghualogic.net/JRC) announces a series of ten lectures in commemoration of the fact that in 2021 it is a hundred years ago that Ludwig Wittgenstein’s seminal book Logisch-Philosophische Abhandlung – Tractatus Logico-Philosophicus first appeared. The series is organised by Hao Tang () and Martin Stokhof ().


  • Kevin Cahill, University of Bergen
  • Eli Friedlander, Tel Aviv University
  • Dimitris Gakis, Catholic University Leuven
  • Hans-Johann Glock, Universität Zürich
  • Oskari Kuusela, University of East Anglia
  • Benjamin de Mesel, Catholic University of Leuven
  • Sami Pihlström, University of Helsinki
  • Göran Sundholm, Leiden University
  • Thomas Ricketts, University of Pittsburgh
  • Ben Ware, King’s College, London

Date & time
The lecture series consists of ten lectures given over a five-week period, between May 17 and June 16. There will be two lectures per week, on
Mondays and Wednesdays, except for the second week, when the lectures will take place on Tuesday and Thursday, at the following times:
21.00 – 23.00 China (CST or UTC+8) =
15.00 – 17.00 Europe (CET or UTC+2) =
14.00 – 16.00 UK (GMT or UTC+1) =
09.00 – 11.00 US, Eastern (UTC-4)

The lecture series will take place online, via Zoom. Details about the online meeting location will be made available to registered participants in due course.

Participation & registration
Participation is free and open to all who are interested in Wittgenstein’s early work. Participants are asked to register at the following website: tsinghualogic.net/JRC/?page_id=2364

For more information, contact Jian Ma: