The Theory of Membership Degree of Γ-Conclusion in Several n-Valued Logic Systems

Based on the analysis of the properties of Γ-conclusion by means of deduction theorems, completeness theorems and the theory of truth degree of formulas, the present papers introduces the concept of the membership degree of formulas A is a consequence of Γ (or Γ-conclusion) in Lukasiewicz n-valued propositional logic systems, Godel n-valued propositional logic system and the R0 n-valued propositional logic systems. The condition and related calculations of formulas A being Γ-conclusion were discussed by extent method. At the same time, some properties of membership degree of formulas A is a Γ-conclusion were given. We provide its algorithm of the membership degree of formulas A is a Γ-conclusion by the constructions of theory root.

Theory of truth degrees of formulas in Lukasiewicz n-valued propositional logic and a limit theorem

The concept of truth degrees of formulas in Lukasiewicz n-valued propositional logic Ln is proposed. A limit theorem is obtained, which says that the truth function τ-n induced by truth degrees converges to the integrated truth function τ when n converges to infinite. Hence this limit theorem builds a bridge between the discrete valued Lukasiewicz logic and the continuous valued Lukasiewicz logic. Moreover, the results obtained in the present paper is a natural generalization of the corresponding results obtained in two-valued propositional logic.

G?del n值命题逻辑系统的真度理论

首先在G?del n值命题逻辑系统中添加了新的连接词Δ,～,给出了G?del n值命题逻辑系统中命题公式间的真度、相似度和伪距离的定义;讨论了在该系统下它们的一些相关性质,并给出了相应的证明。

增加Δ算子的G?del n值命题逻辑系统理论的平均真度

在添加了Δ算子G?deln值命题逻辑系统中,给出了G?del n值命题逻辑系统中有限理论的平均真度的定义,给出了该系统下的一些重要结论并给予证明,验证了在该系统下平均真度的一些基本性质,为进一步在该系统下研究平均真度奠定了基础。

n值Gdel命题逻辑系统中的F度累积理论

在n值Gdel命题逻辑系统中指出概率逻辑学基本定理成立,并提出了与真度相对应的F度,证明了F度累积定理。并比较了概率逻辑学基本定理与F度累积定理的异同。

G?del n值命题逻辑系统中的Δ真度

在G?del n值命题逻辑系统中添加了Δ算子,给出了G?del n值命题逻辑系统的Δ真度的定义及等价形式,讨论了在该系统下Δ真度的一些基本性质,论证了Δ真度的推理规则。