This volume examines the entire logical and philosophical production of Nicolai A. Vasil'ev
studying his life and activities as a historian and man of letters. Readers will gain a
comprehensive understanding of this influential Russian logician philosopher psychologist
and poet. The author frames Vasil'ev's work within its historical and cultural context. He
takes into consideration both the situation of logic in Russia and the state of logic in
Western Europe from the end of the 19th century to the beginning of the 20th. Following this
the book considers the attempts to develop non-Aristotelian logics or ideas that present
affinities with imaginary logic. It then looks at the contribution of traditional logic in
elaborating non-classical ideas. This logic allows the author to deal with incomplete objects
just as imaginary logic does with contradictory ones. Both logics are objects of interesting
analysis by modern researchers. This volume will appeal to graduate students and scholars
interested not only in Vasil'ev's work but also in the history of non-classical logics.
