计算机科学 ›› 2016, Vol. 43 ›› Issue (Z11): 97-102.doi: 10.11896/j.issn.1002-137X.2016.11A.021

• 智能计算 • 上一篇    下一篇

Gdel n值命题逻辑系统中命题公式的t真度及近似推理

朱乃调,惠小静,高晓莉   

  1. 延安大学数学与计算机科学学院 延安716000,延安大学数学与计算机科学学院 延安716000,延安大学数学与计算机科学学院 延安716000
  • 出版日期:2018-12-01 发布日期:2018-12-01
  • 基金资助:
    本文受国家自然科学基金(11471007),陕西省自然科学基金(2014JM1020),多专业融合应用型人才培养模式创新实验区项目,延安大学研究生创新基金资助

t Truth Degree of Formulas and Approximate Reasoning in Gdel n-valued Propositional Logic System

ZHU Nai-diao, HUI Xiao-jing and GAO Xiao-li   

  • Online:2018-12-01 Published:2018-12-01

摘要: 通过增加两类算子~和Δ对Gdel n值命题逻辑系统进行公理化扩张Gdel~,Δ,简记为G~,Δ。在Gdel~,Δ中提出了命题公式的t真度的定义(t任取~,Δ),讨论了t真度的MP规则、HS规则、交推理规则、并推理规则以及它的一些相关性质;得到了命题公式间的t相似度和t伪距离的概念以及它们的一些相关性质;最后在t逻辑度量空间中提出了3种不同的近似推理模式,并证明了3种近似推理模式间的等价性。

关键词: t真度,t相似度,t逻辑度量空间,近似推理

Abstract: By adding new operators Δ and ~,axiomatic expansion of Gdel n-valued propositional logic system is introduced,which is denoted as Gdel~,Δ.In this paper,the definition of t truth degree of propositional formula was put forward(t take Δ,~),and the MP rule,HS rule,meet and union inference rules and some related properties of t truth degree were discussed.The concepts of t similarity degree,t pseudo-metric between propositional formulas and their some related properties are obtained.Three different types of approximate reasoning patterns are introduced in logic metric space,and they are proved to be equivalent.

Key words: t truth degree,t similarity degree,t logic metric space,Approximate reasoning

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