文章摘要
主次条件句中的多余条件问题
The Problem of Redundant Conditions in Conditionals with Primary-condition and Secondary-condition
  
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中文关键词: 主次条件句逻辑  多余条件  极小条件句逻辑
英文关键词: logic of conditionals with primary-condition and secondary-condition  redundant condition  Logic of the smallest conditionals
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中文摘要:
      刘壮虎、李小五在文献[1]中建立了一种有两个条件的主次条件句逻辑C2Lm。以此为基础,讨论主次条件句中的多余条件问题,证明了文献[1]中提出的一种扩充是不成立的。另外建立了C2Lm的一个刻画某种多余条件的扩充系统C1,证明了它的一些语法及语义性质。
英文摘要:
      A logic of conditionals with primary-condition and secondary-condition C2Lm is constructed in Liu Zhuang-hu and Li Xiao-wu(See Bibliography[1]).This paper studies the problem concerning redundant conditions in logic of conditionals with primary-condition and secondary-condition on the basis of that system.It proves C2Lm cannot be extended in one of the ways suggested by See Bibliography[1].Then,this paper constructs system C1 characterizing some redundant condition and proves its syntactic and semantic properties.
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