Hykel Hosni

February 22 MON — 10.30-12.30

Sala "Enzo Paci" — Direzione del Dipartimento (Via Festa del Perdono 7, Milano)

Uncertainty, rationality, probability. And beyond.

Abstract: This seminar presents an informal and rather biased selection of key research topics in the foundations of uncertain reasoning. It consists of four parts. First, I will recall that uncertainty must be taken seriously, and suggest how we might go about making useful distinctions regarding its meaning. Second, I will point out how rationality comes in very handy when we must face "decision-relevant uncertainty". Third, I will illustrate why, under certain conditions, the rational reaction to uncertainty must be probabilistic. In the fourth, and final part, I will discuss why probability is not quite telling us the last word on rational reasoning under uncertainty.