Helsingfors, 1941. 8vo. Orig. wrappers. Back worn at top and bottom, otherwise a near mint copy. 258 pp.
First edition of Wright's Ph.D. thesis, which is also his first publication. Wright was a famous Finnish philosopher, who succeeded Wittgensten as professor at the University of Cambridge. He played a very important role in the rise of formal logic, and his early works played an important part in analytic philosophy and philosophical logic. He is considered a leader of modern Finnish philosophy as well as an authority on Wittgenstein, the late works of whom he edited. His contribution to Anglo-American philosophy cannot be overlooked.