Giuseppe Sanfilippo is an Associate Professor of Probability Theory at the Department in Mathematics and Computer Science, University of Palermo. He received his degree in mathematics from University of Catania. He obtained a PhD degree in Applied Mathematics and Computer Science from the University of Napoli “Federico II”, Italy. He had a research grant from the University of Rome “La Sapienza”. He was a visiting researcher at the INRI (Tolouse, France), at the Department of Mathematics and Statistics, Christchurch (New Zealand) and at Universität Salzburg (Austria). He has been coordinator of a trilateral research conferences on “Human rationality: probabilistic points of view” at Villa Vigoni, Italy. He is currently member in the scientific board in Ph.D. program in Mathematics and Computational Science. He is author of several papers in international journals and conference proceedings. His research interests are in subjective probability, probabilistic reasoning under coherence, coherent conditional probability, imprecise probabilities, probabilistic nonmonotonic reasoning, proper scoring rules, sequential forecasting, scoring alternative forecasting distributions, extropy, probabilistic square of opposition, probabilistic semantics for categorical syllogisms, logical operations among conditional events, iterated conditionals, probability and connexive principles.