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Recent seminar announcements
 Katrin Tent: Ample geometries of finite Morley rank Israeli Logic Talks
 Dana Bartosova: When can we act freely? Toronto Set Theory Seminar
 Jarosław Swaczyna: Haarsmall sets Wrocław University of Technology
 Victoria Gitman: A model of secondorder arithmetic with the choice scheme in which $\Pi^1_2$dependent choice fails Kurt Godel Research Center
 Nick Ramsey: Definability in the absolute Galois group of a PAC field Israeli Logic Talks
 Stefan Hoffelner: $\text{NS}_{\omega_1}$ saturated and a $\Sigma^{1}_{4}$definable wellorder on the reals Kurt Godel Research Center
 Andrey Morozov: Infinite time BlumShubSmale machines for computability in analysis Bonn Logic Seminar
 Grigory Mashevitzky: Action of endomorphism semigroups on definable sets Israeli Logic Talks
 Joanna Jureczko: Some remarks on Kuratowski partitions, new results Wrocław University of Technology
 Chris LambieHanson: Constructions from square and diamond, with an application to superSouslin trees Bonn Logic Seminar
Upcoming conferences
 May 29: Borel Reducibility of Equivalence Relations, Lausanne, May 29, 2017
 July 3: 6th European Set Theory Conference, Budapest, July 3–7, 2017
 July 10: 10th Young Set Theory Workshop, Edinburgh, July 10–14, 2017
 July 10: The 15th Asian Logic Conference, Korea, July 10–14, 2017
 July 14: Classification problems in ergodic theory, Irvine, July 14–25, 2017
 July 31: Applications of model theory to operator algebras, Houston, July 31 – August 4
 August 2: A conference on the occasion of Jensen’s 80th birthday, Münster, Aug 02–04, 2017
 August 14: Logic Colloquium 2017, August 1420, 2017
 August 20: Frontiers of Selection Principles, Warsaw, Aug 20 – Sep 1, 2017
 September 7: Set theoretic & Topological methods in Model Theory, Tezpur, September 7–12, 2017
 September 15: Simon Thomas: the first 60 years, Rutgers, September 1517, 2017

Talks by venue
 Barcelona Set Theory Seminar (RSS)
 Boise Set Theory Seminar (RSS)
 Bonn Logic Seminar (RSS)
 Bristol Logic Seminar (RSS)
 Carnegie Mellon Logic Seminar (RSS)
 Dartmouth Logic Seminar (RSS)
 Israeli Logic Talks (RSS)
 Kurt Godel Research Center (RSS)
 Michigan Logic Seminar (RSS)
 Morelia Topology and Set Theory Seminar (RSS)
 New York Logic Seminars (RSS)
 NUS logic seminar (RSS)
 Prague Forcing Seminar (RSS)
 Prague Set Theory Seminar (RSS)
 Rutgers Logic Seminar (RSS)
 Toronto Set Theory Seminar (RSS)
 UC Irvine Set Theory Seminar (RSS)
 Wroclaw Set Theory Seminar (RSS)
 Wrocław University of Technology (RSS)
Talks by speaker
Alan Dow Alekos Kechris Aleksander Cieślak Aleksandra Kwiatkowska Alessandro Vignati Alex Usvyatsov Alexei Kolesnikov Andre Nies Andreas Blass Andrés Caicedo Andrés Villaveces Andrew BrookeTaylor Andrew Marks Andy Zucker Antonio Avilés Anush Tserunyan Ari Brodsky Arnie Miller Arthur Apter Asaf Karagila Asger Tornquist Ashutosh Kumar Assaf Hasson Assaf Rinot Barnabas Farkas Benjamin Miller Bill Chen Bill Mitchell Boban Velickovic Borisa Kuzeljevic Brent Cody Burak Kaya Carlos Di Prisco Carlos MartinezRanero Charles Morgan Chris LambieHanson Christina Brech Clinton Conley Daisuke Ikegami Dana Bartošová Daniel Rodriguez Daniel Soukup David Aspero David Chodounsky David Fernández Bretón David J. Fernández Bretón David Marker David Milovich Diana Ojeda Diego Alejandro Mejia Dikran Dikranjan Dilip Raghavan Dima Sinapova Dimitrios Vlitas Egbert Thümmel Erez Shochat Erin Carmody Farmer Schlutzenberg François Dorais Frank Stephan Franklin Tall Gregory Cherlin Grigor Sargsyan Grzegorz Plebanek Gunter Fuchs Heike Mildenberger Hiroshi Sakai Hugh Woodin Ilijas Farah Ioannis Souldatos Isaac Goldbring István Juhász Itay Neeman James Cummings Jan Grebík Jan van Mill Jay Williams Jean Larson Jindra Zapletal Joan Bagaria Joel David Hamkins John Baldwin John Clemens John Krueger John Steel Jonathan Verner Jordi LopezAbad Jörg Brendle Jose Iovino Jouko Väänänen Julien Melleray Juliette Kennedy Juris Steprans Justin Moore K. P. Hart Katharina Dupont Konstantinos Tyros Lajos Soukup Laura Fontanella Liljana Babinkostova Liuzhen Wu Luca Motto Ros Luz María García Ávila Lynn Scow Lyubomyr Zdomskyy Marcin Michalski Marcin Sabok Marion Scheepers Martin Goldstern Martin Zeman Martino Lupini Maryanthe Malliaris Masaru Kada Mati Rubin Matteo Viale Matthew D. Foreman Melvin Fitting Menachem Kojman Menachem Magidor Merlin Carl Michael Hrusak Michal Doucha Miguel Angel Mota Mike Pawliuk Mikhail Tkachenko Miodrag Sokic Mirna Džamonja Miyamoto Tadatoshi Monroe Eskew Moti Gitik Nadav Meir Nam Trang Natasha Dobrinen Norman Perlmutter Omer Ben Neria Omer Mermelstein Osvaldo Guzmán González Paul Larson Paul McKenney Peng Yinhe Peter Burton Peter Holy Peter Koellner Peter Koepke Peter Komjath Peter Krautzberger Petr Simon Philip Welch Philipp Lücke Philipp Schlicht Pierre Simon Piotr BorodulinNadzieja Piotr Koszmider Ralf Schindler Randall Holmes Rick Statman Robert Ralowski Robin TuckerDrob Rodrigo R. Dias Roman Kossak Saharon Shelah Sakaé Fuchino Samuel Coskey Sandra Uhlenbrock Scott Cramer Scott Schneider Sean Cox Sebastien Vasey Sergei Artemov Shehzad Ahmed Sheila Miller Simon Thomas Slawomir Solecki Spencer Breiner Spencer Unger Stefan Geschke Stevo Todorcevic Su Gao Sy David Friedman Szymon Zeberski Teruyuki Yorioka Thilo Weinert Timothy Trujillo Todd Eisworth Todor Tsankov Tomek Bartoszynski Toshimichi Usuba Trevor Wilson Uri Abraham Vera Fischer Victor Torres Perez Victoria Gitman Wieslaw Kubis Will Boney Wojciech Stadnicki Wolfgang Wohofsky Xianghui Shi Yair Hayut Yizheng Zhu Yurii KhomskiiCategories
Recent discussions
 10th Young Set Theory Workshop, Edinburgh, July 1014, 2017  Set Theory Talks on 6th Young Set Theory Workshop, June 1014, 2013
 10th Young Set Theory Workshop, Edinburgh, July 1014, 2017  Set Theory Talks on 9th Young Set Theory Workshop, Copenhagen, June 1317, 2016
 10th Young Set Theory Workshop, Edinburgh, July 1014, 2017  Set Theory Talks on 8th Young Set Theory Workshop, Jerusalem, October 2530, 2015
 1st Irvine Conference on Descriptive Inner Model Theory and HOD Mice, July 1829 2016  Set Theory Talks on Inner Model Theory events in California, June, 2014
 saf on Assaf Rinot: The strength of the generalized Souslin hypothesis
 10th Young Set Theory Workshop, Edinburgh, July 1014, 2017  Set Theory Talks on 6th Young Set Theory Workshop, June 1014, 2013
Seminar organizer’s toolbox
Joel David Hamkins conducts research in mathematical logic, particularly set theory, with a focus on the mathematics and philosophy of the infinite.
He has explored the interaction of forcing and large cardinals and recently initiated the research topics known as settheoretic geology, which studies how the settheoretic universe relates to all its various ground models, and the modal logic of forcing, which explores how it relates to all its various forcing extensions.
His philosophical work on the multiverse perspective participates in the emerging debate on pluralism in the philosophy of set theory.
In addition, Hamkins has undertaken work in infinitary computability, in group theory and on the hierarchy of equivalence relations on the natural numbers under computable reducibility.
His most recent theorem is that every countable model of set theory is isomorphic to a submodel of its own constructible universe.
Professor Hamkins earned his Ph.D at the University of California at Berkeley in 1994, and holds a permanent position as Professor at The City University of New York, at the Graduate Center of CUNY and at the College of Staten Island of CUNY.
Recent and upcoming talks by Joel David Hamkins
This Week in Logic at CUNY
Computational Logic Seminar
Tuesday, May 7, 2013 2:00 pm Graduate Center, rm. 3209
Speaker: Yoram Moses Israel Institute of Technology – Technion
Title: Knowledge and the Passage of Time
This talk will discuss how knowledge, nested knowledge, and common knowledge are gained in the presence of clocks and time bound information. continue reading…
Posted in Seminars
Tagged Ermek Nurkhaidarov, Joel David Hamkins, Tamar Lando, Thomas Johnstone, Yoram Moses
This Week in Logic at CUNY
Computational Logic Seminar
Tuesday, April 30, 2013 2:00 pm rm. 3209, Graduate Center CUNY
Speaker: Melvin Fitting Lehman College, CUNY Graduate Center
Title: Realization Implemented
Justification logics are connected to modal logics via realization theorems. continue reading…
Posted in Seminars
Tagged Henry Towsner, Joel David Hamkins, Melvin Fitting, Victoria Gitman
25/Mar/2013: Simon Thomas and Joel Hamkins
Rutgers Logic Seminars
Spring 2013
Rooms 423 & 705, Hill Center
Descriptive Set Theory Seminar
Hill 423
Monday Mar 25th, 3:204:40 pm
Simon Thomas, Rutgers
Invariant random subgroups VI
Rutgers Logic Seminar
Hill 705
Monday Mar 25th, 5:006:20 pm
Joel Hamkins, CUNY
Pluralism in mathematics: the multiverse view in set theory
and the question of whether every mathematical statement has
a definite truth value
Abstract: I shall describe the debate on pluralism in the philosophy of set
theory, specifically on the question of whether every mathematical and
settheoretic assertion has a definite truth value. continue reading…
This Week in Logic at CUNY
Computational Logic Seminar
January 29, Time 2:00 – 4:00 PM, Room 3209
Speaker: Sergei Artemov, CUNY Graduate Center
Title: Definitive solutions of strategic games
Abstract: In his dissertation of 1950, Nash based his concept of
solution to a game on the principles that “a rational prediction
should be unique, that the players should be able to deduce and make
use of it.” In this paper, we address the issue of when Nash
expectations of a definitive solution hold and whether the Nash
Equilibrium (NE) solution concept is a match for such definitive
solutions. continue reading…
This Week in Logic at CUNY
November 27, Time 2:00 – 4:00 PM, Room 3309
Speaker: Melvin Fitting, CUNY
Title: Possible world semantics for first order LP
Abstract: Propositional Justification Logics are modallike logics
in which the usual necessity operator is split into a family of more
complex terms called justifications. continue reading…
Posted in Seminars
Tagged Alan D. Taylor, Joel David Hamkins, Kaethe Minden, Melvin Fitting, Whanki Lee
Joel Hamkins: The countable models of set theory are linearly preordered by embeddability
Rutgers Logic Seminars
Fall 2012
Room 705, Hill Center
Rutgers Logic Seminar
Monday Nov 19th, 5:006:20 pm
Joel Hamkins, CUNY
The countable models of set theory are linearly preordered by embeddability
Descriptive Set Theory Seminar
Monday Nov 19th, 3:204:40 pm
No seminar this week continue reading…
This Week in Logic at CUNY
Computational Logic Seminar
Time 2:00 – 4:00 PM, September 11, Room 3309
Can Baskent, IHPST, Université Paris 1 PanthéonSorbonne
Some Logical Approaches to Lakatos’s ‘Proofs and Refutations’
Abstract. Lakatos’s seminal work ‘Proofs and Refutations’ presents a rational analysis of theorem improvement. continue reading…
This Week in Logic at CUNY
Computational Logic Seminar
September 4, Time 2:00 – 4:00 PM, Room 3309.
Speaker: Tudor Protopopescu (Graduate Center)
Title: Discovering Knowability: A Semantic Analysis (a joint work with S.
Artemov, just appeared in Synthese)
Abstract: We provide a semantic analysis of the wellknown knowability
paradox stemming from the ChurchFitch observation that the meaningful
knowability principle all truths are knowable, when expressed as a bimodal
principle
F > <>KF,
yields an unacceptable omniscience property all truths are known. continue reading…
24/Aug/2012: Joel David Hamkins, and Lajos Soukup
11:00–12:00
Fields institute, Room 210
Speaker: Joel David Hamkins (The City University of New York)
Title: Every countable model of set theory embeds into its own constructible universe.
Abstract: I shall give an account of my recent theorem showing that every countable model of set theory $M$, including every wellfounded model, is isomorphic to a submodel of its own constructible universe. continue reading…