基于均匀概率空间的无穷乘积,在n值Lukasiewicz逻辑系统中引入命题的α-真度理论.给出了一般真度推理规则;利用命题的α-真度定义了命题间的α-相似度,进而导出命题集上的一种伪距离,使得在n值命题逻辑系统中展开近似推理成为可能。
By means of the infinite product of evenly distributed probability spaces,this paper introduces me meory of α-truth degrees in n-valued Lukasiewicz logical system,also,general reference rules endowed with -truth degrees are obtained.Moreover,a pseudo-metric on the set of propositions is defined by means of the concept of truth degrees of propositions and this make it possible to develop approximate reasoning in n-valued propositional logic.