From ℵ2 to infinity May 15 to May 19, 2023 American Institute of Mathematics, San Jose, CA Organizers: James Cummings, Itay Neeman, and Dima Sinapova Description: This workshop, sponsored by AIM and the NSF, is devoted to combinatorial problems about infinite cardinals, including successors of regular cardinals and successors of singular cardinals. Deadline: January 31, 2023 Details: http://aimath.org/workshops/upcoming/alephtwo