**Aim:**

The purpose of the conference is to bring together researchers and individuals interested in all areas of set theory, to discuss the latest developments and findings in their areas, take stock of what remains to be done and explore different visions for setting the direction for future work.

**Organizers:**

Mohammad Golshani (IPM, Iran)

Massoud Pourmahdian (IPM, Iran)

**Important Dates:**

Registration Deadline: September 13, 2019 (Shahrivar 22, 1398)

Deadline for Application for Accommodations : September 13, 2019 (Shahrivar 22, 1398)

**Venue:** IPM Niavaran Building, Niavaran Square, Tehran, Iran

Péter Komjáth (Eötvös Lorán University)

Lectures 1 and 2: Introduction to Combinatorial Set Theory

Lecture 3: The coloring number of graphs

Lectures 1 and 2: Introduction to Combinatorial Set Theory

Lecture 3: The coloring number of graphs

Rahman Mohammadpour (Université Paris Diderot)

1st Talk: What is a virtual model?

2nd Talk: Some Combinatorial Principles Concerning Guessing Models

1st Talk: What is a virtual model?

2nd Talk: Some Combinatorial Principles Concerning Guessing Models

1- a non-special Aronszajn tree.

2- the covering number of the Lebesgue measure zero ideal equal to $\aleph_1$.

3- an n-entangled set of reals (n is an integer not smaller than 2)

YPFA is one of weak fragments of PFA, introduced by Chodounsky-Zapletal. By use of side condition method, it is shown that YPFA implies Moor's Mapping Reflection Principle. A part of my talk is a joint work with Tadatoshi Miyamoto (Nanzan University).

To register for the seminar, please fill out the Registration Form. Your request will be considered by the organizing committee.

**Registration fee for the seminar:**

1) Registration fee for Iranian participants:

You can get more information about the registration fee here.

2) Registration fee for international participants:

The registration fee is 250 Euro for faculties and 150 Euro for postdocs and students. The registration fee for international participants will be due in cash at the time of registration on the first day of the meeting. Please note that standard credit cards; e.g., Visa, Master or AmEXP, cannot be used in Iran.

Registration fee includes: Participation in the conference, documentation package, lunches, coffee breaks and accommodation in the shared room during the conference (October 4-11).

1) Registration fee for Iranian participants:

You can get more information about the registration fee here.

2) Registration fee for international participants:

The registration fee is 250 Euro for faculties and 150 Euro for postdocs and students. The registration fee for international participants will be due in cash at the time of registration on the first day of the meeting. Please note that standard credit cards; e.g., Visa, Master or AmEXP, cannot be used in Iran.

Registration fee includes: Participation in the conference, documentation package, lunches, coffee breaks and accommodation in the shared room during the conference (October 4-11).