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Recent seminar announcements
 Chris Scambler – On Ineffable Liars Kurt Godel Research Center
 Vincenzo Dimonte – Rankintorank axioms and forcing Kurt Godel Research Center
 Ana Njegomir: A forcing characterization of lambdaineffable cardinals Bonn Logic Seminar
 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
Upcoming conferences
 June 20: Symposium of the Set Theoretic Pluralism network, Bristol, June 2025
 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 Andreas Blass Andrés Caicedo Andrés Villaveces Andrew BrookeTaylor Andrew Marks Andrew Toms 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 Boris Zilber Borisa Kuzeljevic Brent Cody Burak Kaya Carlos Di Prisco Carlos MartinezRanero 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 Janusz Pawlikowski 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 Kaethe Minden Katharina Dupont Konstantinos Tyros Lajos Soukup Laura Fontanella 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 Matteo Viale Matthew D. Foreman Melvin Fitting Menachem Kojman Menachem Magidor Merlin Carl Michael Hrusak Michal Doucha Miguel Angel Mota Miha Habic Mikhail Tkachenko Miodrag Sokic Mirna Džamonja Miyamoto Tadatoshi Monroe Eskew Moti Gitik Nadav Meir Nam Trang Natasha Dobrinen Norman Perlmutter Omer Ben Neria 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 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 Taras Banakh Teruyuki Yorioka Thilo Weinert Timothy Trujillo Todd Eisworth Todor Tsankov Tomek Bartoszynski Toshimichi Usuba Trevor Wilson Tristan Bice Uri Abraham Vera Fischer Victor Torres Perez Victoria Gitman Vincenzo Dimonte Wieslaw Kubis Will Boney Wojciech Stadnicki Wolfgang Wohofsky 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
Recent and upcoming talks by Chris LambieHanson
Chris LambieHanson: Constructions from square and diamond, with an application to superSouslin trees
Monday, May 8, 2017, 16.30
Seminar room 0.011, Mathematical Institute, University of Bonn
Speaker: Chris LambieHanson (BarIlan)
Title: Constructions from square and diamond, with an application to superSouslin trees
Abstract. In 1982, Shelah and Stanley proved that, if $\kappa$ is a regular, infinite cardinal, $2^\kappa = \kappa^+$, and there is a $(\kappa^+, 1)$morass, then there is a $\kappa^{++}$superSouslin tree, which is a type of normal $\kappa^{++}$tree that necessarily has a $\kappa^{++}$Souslin subtree and continues to do so in any outer model in which $\kappa^{++}$ is preserved and no new subsets of $\kappa$ are present. continue reading…
Chris LambieHanson: Partition relations and generalized scattered orders
BIU seminar in Set Theory
On 30/03/2017, 1012, Building 604, Room 103
Speaker: Chris LambieHanson
Title: Partition relations and generalized scattered orders
Abstract: The class of scattered linear orders, isolated by Hausdorff, plays a prominent role in the study of general linear orders. continue reading…
Chris LambieHanson: Trees with ascent paths
HUJI Logic Seminar
The next meeting of the Logic Seminar will be in Wednesday, 22/03/17, 16:00 – 18:00, Ross buiding.
Speaker: Chris LambieHanson
Title: Reflections on the coloring and chromatic numbers
Abstract: The notion of an ascent path through a tree, isolated by Laver, is a generalization of the notion of a cofinal branch and, in many cases, the existence of an ascent path through a tree provides a concrete obstruction to the tree being special. continue reading…
Chris LambieHanson: Reflections on the coloring and chromatic numbers
HUJI Logic Seminar
The next meeting of the Logic Seminar will be in Wednesday, 18/01, 16:00 – 18:00, Ross 70.
Speaker: Chris LambieHanson
Title: Reflections on the coloring and chromatic numbers
Abstract: Compactness phenomena play a central role in modern set theory, and the investigation of compactness and incompactness for the coloring and chromatic numbers of graphs has been a thriving area of research since the mid20th century,when De Bruijn and Erdős published their compactness theorem for finite chromatic numbers. continue reading…
2016 Graduate summer school in set theory, Irvine, July 25 – August 5 2016
A graduate summer school in set theory will be held July 25 – August 5 2016 at the University of California Irvine.
The subject of the summer school will be singular cardinal combinatorics, with a focus on PCF theory. continue reading…
Posted in Conferences, Logic In Southern California
Tagged Chris LambieHanson, James Cummings
Chris LambieHanson: Coloring classes and the Hanf number for amalgamation.
Set Theory and Topology seminar (BGU)
Notice the onetime change in place to +201.
Time: Tuesday, March 24, 12:1513:40.
Place: Seminar room +201, Math building 58.
Speaker: Chris LambieHanson (HUJI).
Title: Coloring classes and the Hanf number for amalgamation. continue reading…
Chris LambieHanson: Bounded Stationary Reflection
Students Set Theory Seminar (HUJI)
We shall meet Wednesday (December 10) in the Hebrew University (in Ross 70), 14:4516:00.
Speaker: Chris LambieHanson
Title: Bounded Stationary Reflection
Abstract: Eisworth, motivated in part by his work on squarebracket partition relations, asked whether it must be the case that if mu is a singular cardinal and every stationary subset of mu^+ reflects, then every stationary subset of mu^+ reflects at an ordinal of arbitrarily high cofinality below mu. continue reading…
Chris LambieHanson: Wellcolorings and the Hanf number for amalgamation
Infinite Combinatorics Seminar (BIU)
9/November/2014, 1012,
Room 201, Building 216, BarIlan University
Speaker: Chris LambieHanson (HUJI)
Title: Wellcolorings and the Hanf number for amalgamation
Abstract: The amalgamation property is a topic of fundamental interest in model theory and is still imperfectly understood. continue reading…
Winter School, Jan 31 – Feb 7, 2015
We are pleased to announce that the registration for the Winter School in Abstract Analysis, section Set Theory & Topology is now open. The conference will take place between Jan 31st and Feb 7th 2015 in Hejnice, Czech Republic. continue reading…
Chris LambieHanson: Jónsson cardinals, partition relations, and stationary reflection, Part III
Speaker: Chris LambieHanson
Title: Jónsson cardinals, partition relations, and stationary reflection, Part III
Abstract: I will present a proof that, relative to large cardinal assumptions, it is consistent that there is a singular cardinal
mu such that every stationary subset of mu^+ reflects but that there is a stationary subset of mu^+ that does not reflect at
ordinals of arbitrarily high cofinality. continue reading…