For the last 25 years, since publication of his Logical Studies, Professor Von Wright has steadily explored the field of philosophical logic. The concept of negation, logical paradoxes, the puzzles connected with evidence and probability in confirmation theory, the interrelatedness of the ideas of time and change, and the clarification of the structure of temporal and spatial orderings are among the many areas he has profitably investigated.
The late G. H. von Wright, who succeeded Wittgenstein in the Faculty of Philosophy at the University of Cambridge and served as one of three executors of the Wittgenstein estate, was a visiting professor at Cornell University from 1965 to 1977 and finished his career at the University of Helsinki. His many books include The Varieties of Goodness, Norm and Action, The Logic of Preference, and Freedom and Determination.