Bedeutungskategorien and the type theory that Russell had introduced to fend off foundational problems in set theory, proposed a mode of grammatical analysis in which every element of the vocabulary of a language belongs to one or more categories, and each category is either basic or defined in terms of simpler categories in a way which fixes the combinatorial properties of complex categories." /> Introduction - Oehrle Richard T.; Bach Emmon; Wheeler Deirdre | sdvig press