缺省逻辑及其在言语交际中的应用

Default Logic and Its Application in Verbal Communication

在日常言语交际中,人们使用的推理往往具有不确定性、相对性等特点,而这些特点是经典逻辑无法刻画的,于是可以对信息缺失或不完整的情况进行刻画的缺省逻辑步入了学者们的研究视野。目前,缺省逻辑以其自身优势已然成为研究言语交际中如语境、一般会话含义、回指现象等问题的重要工具。

We often employ common-sense reasoning in daily verbal communications,which have uncertainty,relativity and other characteristics.These characteristics cannot depicted by classical logic.Thereupon,an important form of reasoning of non-monotonic logic,namely default reasoning has aroused the attention of scholars.Because of default logic has many advantages;it has become an important approach for study of verbal communication（such as context,the generalized conversational implication,etc.）.