The Semantic Understanding on Definiteness of Referential Determiner

Referential determiner includes the article,demonstrative determiner,possessive determiner,and the genitive case.From traditional grammar perspective,all these four classes may be not certain definite determiner,especially.indefinite article a(n),for its expression of number concept,but in fact,it is not like so.All these four classes have definiteness,only if the deduction of the definiteness must be fit for the syntactic identity condition: there must be utterance context.