The Probable, the Possible and the Virtual Publication date : February 1, 1995
Probability, possibility and virtuality are three modes of what could be defined as non-actuality . Gilles-Gaston Granger, who has been professor of comparative epistemology at the College de France, continues here his reflexion on modern, scientific rationality. Thus, he has chosen to examine the role each of these modes can play in objective thinking. They correspond to essential moments in the knowledge of the empirical world.