The book covers almost the whole range of semiotics: the conceptions of meaning, the appearance of meaning units in semiosis, the dichotomy analyticity/syntheticity, the formal condition of good translation, the metaphorical change in fine arts, the figurativeness in modern literary theories, the metaphor in computer translation, the conditionals with egocentric predicates, the evolution of the notion of cause, the temporal relation in conditionals, the structure of passive voice, the semantics of to think, the reasoning and rationality, the non-formalized reasoning, the operation of acceptance, the principle of non-contradiction, the relation semiotics/logic/philosophy, the interdisciplinarity and exactness, the notion of imprecision, the interpretation of some semiotic notions (i.a. semantic field of terms) in terms of mathematics, the description of categorial grammars in terms of model theory, the human knowledge as moral problem, the conceptualization of the development of knowledge by means of the notion of meme, the cultural relations between some European countries, the typology of scientists, the semiotic studies of some Spanish, Irish, Czech, Polish and Norwegian works of literature, the semiotic aspects of music, television and the whole sphere of artifacts, the history of semiotics (Plato, Gonsung Long, Descartes, Fu Yen, Peirce, Brwal, Lotman, Langer).

This book presents Kazimierz Ajdukiewicz's philosophy. Ajdukiewicz was one of the most distinguished and important philosophers of the contemporary Poland. He produced important ideas in logic, epistemology, philosophy of language, and ontology. He influenced Polish analytic philosophy very much. The collection gives a general account of Ajdukiewicz philosophy and it is the only full presentation of his ideas available in Western languages. The volume is of interest for everybody working in analytic philosophy.