**Calendar**

**January 10**:
**MOPA**
**1:00pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**Are higher-rank arithmetic groups uniformly bi-interpretable with arithmetic?**

**Arseniy Sheydvasser**
Technion

**Abstract**

**January 24**:
**MOPA**
**1:00pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**Representation of unlimited integers**

**Karel Hrbacek**
CUNY

**Abstract**

**January 31**:
**MOPA**
**1:00pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**Order types of models of arithmetic without induction**

**Lorenzo Galeotti**
Amsterdam University College

**Abstract**

**February 3**:
**Logic Workshop**
**In-person**
**Absolute Undefinability**

**Roman Kossak**
CUNY

**Abstract**

**February 3**:
**Set Theory Seminar**
**12:30pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**Highly connected Ramsey theory**

**Jing Zhang**
University of Toronto

**Abstract**

**February 7**:
**MOPA**
**1:00pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**Effective infinitesimals in R**

**Mikhail Katz**
Bar Ilan University

**Abstract**

**February 10**:
**Logic Workshop**
**Satisfaction and saturation**

**Athar Abdul-Quader**
Purchase College

**Abstract**

**February 10**:
**Set Theory Seminar**
**12:15pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**Strategy and determinacy in infinite Hex**

**Davide Leonessi**
CUNY

**Abstract**

**February 14**:
**MOPA**
**1:00pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**On the significance of parameters in the choice and сomprehension schemata in the 2nd-order Peano arithmetic**

**Vladimir Kanovei**
Institute for Information Transmission Problems

**Abstract**

**February 17**:
**Logic Workshop**
**Computability and the Absolute Galois Group of $\mathbb Q$**

**Russell Miller**
CUNY

**Abstract**

**February 21**:
**MOPA**
**1:00pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**First-order classification and non-standard models**

**Alexei Miasnikov**
Stevens Institute of Technology

**Abstract**

**February 24**:
**Logic Workshop**
**TBA**

**Johanna Franklin**
Hofstra University

**Abstract**

**February 28**:
**MOPA**
**1:00pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**TBA**

**Zuzana Hanikova**
Czech Academy of Sciences

**Abstract**

**March 17**:
**Logic Workshop**
**TBA**

**Filippo Calderoni**
Rutgers University

**Abstract**

**March 17**:
**Set Theory Seminar**
**12:15pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**TBA**

**Jonathan Osinski**
University of Hamburg

**Abstract**

**March 24**:
**Logic Workshop**
**TBA**

**Victoria Gitman**
CUNY

**Abstract**

**April 7**:
**Logic Workshop**
**No seminar (spring break)**

**April 7**:
**Set Theory Seminar**
**12:15pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**TBA**

**Miha Habič**
Bard College at Simon's Rock

**Abstract**

**April 14**:
**Set Theory Seminar**
**12:15pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**TBA**

**Gabriel Goldberg**
University of California, Berkeley

**Abstract**

**April 21**:
**Logic Workshop**
**TBA**

**Alf Dolich**
CUNY

**Abstract**

**April 21**:
**Set Theory Seminar**
**12:15pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**TBA**

**Mohammad Golshani**
Institute for Research in Fundamental Sciences

**Abstract**

**April 28**:
**Set Theory Seminar**
**12:15pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**TBA**

**Will Boney**
Texas State University

**Abstract**

**May 5**:
**Set Theory Seminar**
**12:15pm** NY time

**Virtual** (email Victoria Gitman for meeting id)
**TBA**

**Joel David Hamkins**
Notre Dame University

**Abstract**