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ӢժҪGeneric sentences appear to have universal quantifications. They, nevertheless, tolerate exceptions.This is the main feature of generics and also the most puzzling problem to be solved in the researches about them.This feature indicates that generics express something involving intensionality.Based on intensional semantics, this paper uses a formal method to reveal that generic sentences express the intensions of concepts, and shows that what generics are about.Thus, some puzzling phenomena around generics are explained with satisfaction.This discovery relies on several assumptions:Concepts are functions mapping from a set of possible worlds to the power set of a set of intensions;the intension of a concept is the set of all generic consequences derived from the sense of the term that expresses the concept;etc.However,these assumptions are not in accord with the traditional views.To make the results presented here more conclusive, the fundamental properties from the bottom line of the concepts are discussed and analyzed.They are summarized to be seven basic properties of concepts.The positions proposed in this paper are argued for and enforced by exploring the relation between concept and language, as well as the relation between concept and knowledge.These arguments consist of a new theory of concept.
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[1] Mao,Y.,and Zhou,B.An analysis of the meaing of generics[J].Social Sciences in China,Vol.XXIV,No.3,Autumn 2003,126-133.
[2] ܱë.һPڳRĻA߉[J].܌Wо20031-10.
[3] .ʽ߉[M].1979.
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[5] ꐲ.߉WՓ[M].ЇW2003.
[6] .[A].܌Wx[M].·g.̄ӡ^1994.
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