b. 1936
Krister Segerberg is a Swedish logician and philosopher best known for his foundational work in modal logic and the logic of action. He has made significant contributions to dynamic logic, deontic logic, and the formal analysis of belief revision and agency.
Pioneered the development of dynamic logic and the logic of action
Authored influential work on the modal logic of belief revision
Developed formal frameworks for deontic logic and normative reasoning
Served as professor at Uppsala University and shaped Scandinavian analytic philosophy
Contributed foundational results to the semantics of tense and modal operators