在多值命题逻辑系统中提出了公式的真度概念。基于此,提出了公式问的相似度与伪度量,研究了所得的逻辑度量空问的基本性质,提出并研究了逻辑理论的发散度与相容度概念,给出了三种近似推理的模式,初步建立了计量逻辑学理论。
The concept of truth degree of formulas in diverse propositional logic systems is proposed, and the concepts of similarity degree and pseudo-metric among formulas are introduced therefrom, Basic properties of the induced logic metric space are investigated, of which theories of divergency degree and consistency degree of a logic theory are developed, and three types of approximate reasoning models are proposed as well, and an elementary quantitative logic theory is hence established.