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充要条件假言命题也可作二难推理的前提
引用本文:李贤军. 充要条件假言命题也可作二难推理的前提[J]. 贵州大学学报(自然科学版), 2002, 19(2): 161-163
作者姓名:李贤军
作者单位:贵州民族学院,贵州,贵阳,550025
摘    要:现行普通逻辑理论把二难推理的假言前提局限于充分条件假言判断和必要条件假言判断,而把充要条件假言判断排除在外,从而遗漏了一部分有效式,本文在这方面作一定的探讨,并总结出了二难推理的全部有效式。

关 键 词:充要条件假言命题 二难推理 有效式 逻辑学
文章编号:1000-5269(2002)02-0161-03

Hypothetical Judgment Under Sufficient and Necessary Conditions Can Also be the Premise of the Dilemma
Li Xianjun. Hypothetical Judgment Under Sufficient and Necessary Conditions Can Also be the Premise of the Dilemma[J]. Journal of Guizhou University(Natural Science), 2002, 19(2): 161-163
Authors:Li Xianjun
Abstract:According to present Universal logic theories,the hypothetical judgment premise of the dilemma is confined to hypothetical judgment under adequate conditions and hypothetical judgment under necessary conditions.Hypothetical judgment under sufficient and necessary conditions has not been taken into consideration.As a result,some tautological forms of inference are left out.In this essay.I explores the aspect mentioned above and summarizes all the tautological forms of inference of the dilemma.
Keywords:hypothetical judgment under sufficient and necessary conditions  dilemma  premise.
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