Talks
An overview of cardinals without the axiom of choice, Delta_8 Logic Workshop, Zhejiang University, Hangzhou, March 2018.
On the cardinality of infinite symmetric groups in ZF, Fudan Logic Seminar 2018, Fudan University, Shanghai, April 2018.
Factorials of infinite cardinals in ZF, IMS Graduate Summer School in Logic, National University of Singapore, Singapore, June 2018.
Cardinals in ZF, Set Theory Seminar, Beijing Normal University, Beijing, September 2018.
A note on strongly almost disjoint families in ZF, Logic Workshop in Nanjing, Nanjing University, Nanjing, April 2019.
Infinite factorials and finite-to-one functions, Set Theory Workshop, Chinese Academy of Sciences, Beijing, October 2019.
A choice-free cardinal equality, Set Theory Seminar, Chinese Academy of Sciences, Beijing, November 2019.
Powers and factorials of non-well-ordered cardinals, Set Theory Seminar, Chinese Academy of Sciences, Beijing, December 2019.
A choice-free cardinal equality, Chinese Annual Conference on Mathematical Logic 2020, Nankai University, Tianjin, November 2020.
An application of lattice theory to non-well-ordered cardinals, Logic Seminar in NJU, Nanjing University, Nanjing, December 2020.
On the cardinal equality ๐! โ ๐ = ๐!, Delta_15 Logic Workshop, Nanjing University, Nanjing, May 2021.
An application of lattice theory to non-well-ordered cardinals, Tsinghua Logic Salon, Tsinghua University, Beijing, December 2021.
An application of lattice theory to non-well-ordered cardinals, Set Theory Seminar, Sichuan University, Chengdu, May 2022.
A surjection from square onto power, HIT Logic Symposium, Harbin Institute of Technology, Harbin, August 2022.
An application of lattice theory to non-well-ordered cardinals, Chinese Mathematical Society 2022 Annual Conference, Wuhan University of Technology, Wuhan, February 2023.
On cancellation laws in cardinal arithmetic without the axiom of choice, Set Theory Seminar, Chinese Academy of Sciences, Beijing, March 2023.
On permutations with finitely many non-fixed points in ZF, 2023 Sichuan Logic Workshop, Sichuan University, Chengdu, May 2023.
A surjection from square onto power, The 29th Nankai Logic Colloquium, Nankai University, Tianjin, May 2023.
Generalizations of Cantor's theorem in set theory without the axiom of choice, Shiing-Shen Class Academic Forum, Nankai University, Tianjin, May 2023.
A surjection from square onto power, 2023 Fudan Conference on Mathematical Logic, Fudan University, Shanghai, August 2023.
Cantor's theorem may fail for finitary partitions, HIT Logic Symposium, Harbin Institute of Technology, Harbin, August 2023.
A finite-to-one function from the symmetric group of an infinite set A onto A, The 17th Asian Logic Conference, Nankai University, Tianjin, October 2023.
Generalizations of Cantor's theorem in set theory without the axiom of choice, Shuozhi Logic Lecture, Sun Yat-sen University Zhuhai Campus, Zhuhai, November 2023.
Generalizations of Cantor's theorem in set theory without the axiom of choice, HIT Logic Seminar, Harbin Institute of Technology, Harbin, November 2023.
Generalizations of Cantor's theorem in ZF, PKU Logic Seminar, Peking University, Beijing, May 2024.