基于条件概率的思想,在二值经典命题逻辑中引入条件真度的概念。在二值逻辑系统中初步给出了在信息Σ下的近似推理理论。
In this paper,The conditional truth degreeof formulas in classical propositional logic is proposed on the ideaof conditional probability. Then the author gives out the theory ofapproximate reasoning under certain information-∑ inpropositional logic.