紧致性是模糊逻辑的一个重要性质,Godel命题逻辑、NMG命题逻辑和L^*命题逻辑都是紧致的。利用滤子理论证明了一类基于左连续t-模的命题逻辑鼠的紧致性,为模糊逻辑紧致性的证明提供了新方法,同时给出了Godel命题逻辑、NMG命题逻辑和L^*命题逻辑紧致性定理的新的统一证明。
Compactness is an important property of fuzzy logic. It is well known that Godel proposition logic, NMG proposition logic and L^* proposition logic are all compact. By using filter theory, the compactness theorem of a type of left-continuous t-norm based logic, Ho, is proved in this paper, which provides a new method for proving compactness in fuzzy logics. Meanwhile, the above results also provide a uniform proof of compactness theorem of Godel proposition logic, NMG proposition logic and L^* proposition logic.