| 摘要: |
| 文章研究了子句逻辑推演的Petri网模型表示和不动点求解方法.基于四值逻辑和冲突变迁的概念,可用Horn子句的Petri网模型方法来构造非Horn子句的Petri网模型.逻辑推演的基本方法之一就是寻找逻辑赋值的不动点.该文显示了一种基于Petri网模型的子句逻辑不动点求解算法,比现有算法更为有效. |
| 关键词: 逻辑推演,子句,Petri网,不动点,四值逻辑. |
| DOI： |
| 分类号: |
| 基金项目:本文研究得到国家自然科学基金资助. |
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| Logical Inference of Clauses in Petri Net Models Using Fixpoint |
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LIN Chuang,WU Jian-ping
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| Abstract: |
| The Petri net models of the clauses for logical inference using fixpoint are studied and the four-valued logic and the conflict transition concept are introduced. The authors can construct the Petri net models of non-Horn clauses based on the models of Horn clauses. Finding the fixpoint of logical values is one of the fundamental methods for logical inference. In this paper, an algorithm for the fixpoint based on the Petri net models of values is presented, and it is more efficient than the previous ones. |
| Key words: Logical inference, clauses, Petri net, fixpoint, four-valued logic. |
