紧致性是模糊逻辑的一个重要性质.现已经证明Lukasiewicz命题逻辑、Godel命题逻辑、乘积命题逻辑和形式系统L^*都是紧的.通过刻画逻辑系统NMG中的极大相容理论和证明NMG的满足性,进而证明了NMG也是紧的.
Compactness is an important property of fuzzy logic systems. It was proved that Lukasiewicz propositional logic, Godel propositional logic, Product propositional logic and the formal deductive system L^* are all compact. The aim of the present paper is to prove the compactness of the fuzzy logic system NMG by characterizing maximally consistent theories and by proving the satisfiability of consistent theories over NMG.