本文沿语义学进路考察了柏拉图中期对话《斐多篇》的存有论的内在结构,为西方学界争论已久的“第三人论证”所包含的“自谓述”假设提供了理论支持,揭示了柏拉图理念论中蕴含的描述与命名、意义与指称和专名与通名的混淆,澄清了Being概念中“同一性”、“有”和“谓述系词”的内在意义关联与主从关系。 This essay examines the internal structure of existentialism of Plato ’s Midodiscourse Dialogues along the semantics route, which is the hypothesis of “self - assertion ” contained in the “Third Party Argument ” which has long been debated by western scholars. Provided theoretical support, revealed the confusion between description and naming, meaning and allegation, and proper name and generic name implied in Platonic theory, and clarified the concepts of “identity”, “” and “ Descriptor ”the intrinsic meaning of the relationship and the relationship between the main.