La estructura de los pensamientos

in his logical and semantic work gottlob frege holds two apparently contradictory theses about the notion of thought as objective content of judgments and truth bearer: (1) two structurally different sentences can express the same thought; (2) there is an exact correspondence between the elements of a thought and the sentence that expresses it. thus, the structure of the sentence is a model of the structure of the thought. this tension has produced a discussion initiated by michael dummett in the interpretation of frege？s philosophy. in this paper we also discuss the articles by david bell and carlo penco. following the latter, we suggest that the theses are related to two different notions of sense achieving different purposes in the work of the german philosopher.