第二部分：详细分析了两种主要的关于名称的指称理论：以罗素为代表的摹状词理论和以克里·普克的历史因果的指称理论。
The second part analyzes two important reference theory concerning name: Description theory represented by Russell and Historical Casual theory of reference represented by Kripke.
克里·普克、普特南是因果历史理论的代表，他们认为：专名是严格指示词，在每个可能世界都指称同一个对象。
Kripke and Putnam who has presented the theory of the historic causality consider that proper name is the rigid designator, and always refers to the same object in every possible world.
指称在因果描述理论和直接指称的因果链条中是同样模糊的。
This suggest indirectly that reference of proper names in the causal description theory and the casual chain of direct reference are equally vague.
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