Abstract: 

Abstract elementary classes (AECs) were introduced by Shelah as an axiomatized framework of non-elementary classes including models of infinitary logics. After introducing the basic notions we highlight the distinctions between AECs and elementary classes and test questions that motivate the development of the field. Time permitting I will present some recent work. This talk does not require any prior experience with AECs.

Hybrid: Both in-person (Quan9) and online

 zoom room: 717 463 6082