Unification of Dynamic Semantics and Communication Theory

迄今为止，动态语义学的研究几乎是独立于对交际的哲学研究而发展起来的。然而，当我们将动态语义学的框架应用于具体的话语解释时，或者当我们试图扩展动态语义学的框架以描述意图状态时，我们需要一个框架，该框架还可以描述通信如何发展。此外，当我们从会话的语义分析开始时，我们面临着如何描述会话伙伴的心理状态以及如何表达意图状态的内容等问题。因此，信念内容和其他意向状态的内容之间存在着很强的依赖性，这两个主题，即动态语义和沟通，是紧密相连的。在这种情况下，本研究项目的一个目的在于提出一种将动态语义学与交际理论相结合的理论。在本研究项目中，通过以下三个步骤实现了这一目标1。利用Nakayama在1999年提出的自然表示语言框架，描述意向状态的内容，并建立态度归属的语义。将沟通分析为一种联合行动，即一种态度要求的博弈;分析预设、断言和信念之间的关系，以阐明话语与说话人信念状态之间的关系。这一方法的结果在我近三年发表的文章和今年3月发表的本研究项目报告中作了说明。与这些研究活动同时进行的还有信念结构理论、信念结构理论、信念结构理论和信念结构理论等相关问题。研究了基于信仰结构理论的科学哲学、隐喻研究和时间哲学理论，并以文章形式发表。

Hitherto, the research of dynamic semantics has been developed almost independently from philosophical investigations on communication. However, when we apply a framework of dynamic semantics to concrete discourse interpretations or when we try to extend a framework of dynamic semantics in order to describe intentional states, we have need of a framework that can also describe how a communication develops. Moreover, when we start with semantic analysis of conversations, we are faced with problems such as how to describe mental states of conversation partners and how to express contents of intentional states. Thus, there is a strong dependency between belief contents and contents of other intentional states, and the two themes, i.e. dynamic semantics and communication, are strongly connected. In this situation, an aim of this research project lied in proposing a theory that unities dynamic semantics and communication theory. In this research project, this aim has been achieved through the following three steps1. Describing contents of intentional states and developing semantics for attitude ascriptions by using NRL (Natural Representation Language), a framework proposed by Nakayama in 1999,2. Analyzing communication as a joint action, i.e. a game of attitude ascriptions,3. Analyzing relationships among presuppositions, assertions, and beliefs in order to clarify relationships between utterances and belief states of speakers.Results of this approach were explained in my articles published in recent three years and in the report of this research project published in this March.In parallel with these research activities, related problems, such as theory of belief structures, philosophy of science based on theory of belief structures, research on metaphors, and philosophical theory of time, were investigated and published as articles.