A Study of Constructing a General Framework for the Analysis of the Structure of Actions and Events

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The main result obtained by WARAGAI is concerned with a construction of a logical framework for the Analysis of events. In his research, he payed a special heed to the problem of logical possibility of 'individual events'. The main problem was, in other words stated, this: Is the notion of 'individual event' (a) logically acceptable one? This led him to the construction of a language in which we may treat '(a) is -an -instance-of (b)' relation as a logical relation. One should notice the fact that this relation is completely alien to the standard logical framework taken today as a standard logical tool, i.e. Fragean first-order language. WARAGAI [1990] wa quite successful in the aimed construction. Almost all the other results on the list are based on the result of this work [1990]. He proved in his [1993] that the logic innate in natural language in equipped with a natural device by means of which it becomes meaningful to distinguish individuals from generals at the level of events. This result provides us with the logical ground of discussing about individual events.The Central Theme of KUWAKO's study is to investigate how it is possible to construct a theory of human action. He tried to answer this question by considering Aristotelian notion of action, desire, belief, pleasure, etc. But one of the conclusion is that they are not sufficient tools for the kind of theory that we need. It is impossible to explain the nature of human action without taking into consideration the situation where actions are performed. Here we must recognize the importance of the notion of situation and its related notions in the thought of Chu Hsi.