Abstract

The liar analyzes in detail the genealogy of the paradox expressed by Epimenides when he claimed that all Cretans were liars. As he himself was a native of Crete, this expression was paradoxical since he expressed a truth by lying. Epimenides showed that it is possible to construct perfectly correct sentences according to grammatical and semantic rules, but that they in turn express a contradiction insofar as it is true and false indistinctly. Since the beginning of Western thought, the liar's paradox has been resolved from dissimilar points of view. The book will analyze the different proposals developed in order to deactivate their pernicious consequences for any theory of truth. Thus, Aristotle proposed that the liar should be considered a fallacy, so he attempted to dissolve the presumed validity of his argument through insightful distinctions around the secundum quid et simpliciter fallacy. Subsequently, solutions were tested within the framework of discursive, dialectical and hypothetical models. In the book those propositions that change their truth value over time are analyzed, those called in the metapiptonta tradition. In medieval times the liar was assumed to be insolubious. Special attention was given to the discussion around the transcasus. Kant approached the liar from the point of view of the white lies generated by the antinomies of reason. In modern times, special care was taken to translate the liar into new expressive forms in order to pose it from a merely formal point of view. For this reason the study of him focused on showing and describing his circular, self-referential and reflective character. This work emphasizes the study of the liar within the framework of occasional expressions. The self-reference of the liar's paradox is derived from referential expressions that result from the information expressed circumstantially within the framework of a surrounding context. For this reason we propose a systematic study of the occasional in order to dissolve the liar. Our proposal proposes to characterize the surrounding expressions that determine the liar's referential meaning.