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).

In the past thirty years, two fundamental issues have emerged in the philosophy of science. One concerns the appropriate attitude we should take towards scientific theories--whether we should regard them as true or merely empirically adequate, for example. The other concerns the nature of scientific theories and models and how these might best be represented. In this ambitious book, da Costa and French bring these two issues together by arguing that theories and models should be regarded as partially rather than wholly true. They adopt a framework that sheds new light on issues to do with belief, theory acceptance, and the realism-antirealism debate. The new machinery of "partial structures" that they develop offers a new perspective from which to view the nature of scientific models and their heuristic development. Their conclusions will be of wide interest to philosophers and historians of science.