《Science in China,Ser.A》2002年09期 加入收藏    获取最新 
 Theory of truth degrees of propositions in two-valued logic
 王国俊 ,傅丽 ,宋建社
   <正>By means of infinite product of evenly distributed probabilistic spaces of cardinal 2 this paper introduces the concepts of truth degrees of formulas and similarity degrees among formulas, and a pseudo-metric on the set of formulas is derived therefrom, this offers a possible framework for developing an approximate reasoning theory of propositions in two-valued logic.
【基金】:This work was supported by the National Natural Science Foundation of China (Grant Nos. 19831040 and 69831040).
【分类号】:O141
【DOI】:cnki:ISSN:1006-9283.0.2002-09-002
【正文快照】:
  In multiple-valued prepositional logic, the theory of Z'-(a-tautologies) in revised Kleene system has been proposed in ref. [1] where E is a subset of the valuation set Si, a ?(0,1], and a proposition A (also called formula) is a Z'-(a-tautology) if v(A) ^ a holds for every v & S. In continuous valued prepositional logic, the theory of integral truth degrees of formulas is proposed in refs.[2, 3] by means of integrations. Formulas with larger tautology degrees or integral truth degrees are …
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 Theory of truth degrees of propositions in two-valued logic
 WANG Guojun FU Li & SONG JiansheResearch Center for Science;Xi'an Jiaotong University;Xi'an 710049;China;Institute of Mathematics;Shaanxi Normal University;Xi'an 710062;China;Qinghai Nationality College;Xining 810000;China;Xi'a
  By means of infinite product of evenly distributed probabilistic spaces of cardinal 2 this paper introduces the concepts of truth degrees of formulas and similarity degrees among formulas, and a pseudo-metric on the set of formulas is derived therefrom, this offers a possible framework for developing an approximate reasoning theory of propositions in two-valued logic.
【Keyword】:measurized mapping, truth degree, similarity degree, theorem with error, divergence degree, deviation.
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