Axiomatic Characterization of Synonymy and Antonymy

This work is a con t inua t ion o f research repor ted in the paper Mathematical Models o f S ~ n o n ~ , which was presented a t the 1965 I n t e r n a t i o n a l Conference on Computational L i n g u i s t i c s . That paper p resen ted a h i s t o r i c a l summary of the concepts of synonymy and antonyms. I t was noted t h a t s ince the f i r s t book on Engl ish synoD S , which appeared in the second h a l f of the l a t h cen tury , d i c t i o n a r i e s of synonyms and antonyms have va r i ed according t o the p a r t i c u l a r e x p l i c i t d e f i n i t i o n s o f "synonym" and "antonym" t h a t were used. The r o l e s of p a r t o f s p e e c h , contex t of a word, and s u b s t i t u t a b i l i t y in the same context were d iscussed .