不确定性在推理过程中传播的行为特征

Propagation of Uncertainties in Fuzzy Reasoning

在布尔算子模糊逻辑中，证明了前提的不确定性在推理过程向结论传播时，恒真水平呈递增趋势，而恒假水平保持不变的特性．从而在定性的意义上说明了随着推理过程的深入，结论的不确定性将会越来越分明，但其可靠性不可能有根本性的提高．

Based on the boolean operator Fuzzy Logic, It is proved that the true levels ofpropositions keep nondecreasing in reasoning and meanwhile the false levels remain unvaried.This provides a qualitative explanition to the fact that the uncertainty description of conclusion can be more and more precise but the conclusion itself can not become moe dependablethan the premiss.