CAJ | 학술논문

基于词项逻辑的逻辑常项即词项联结词A、E、I、O的逻辑性质如对称性、周延性（范围和方向）,可以建立三段论的新方法———替换中项法,来同时解决三段论的判定问题、直接的推理或者直接的证明问题,最后形成包括24个经典有效式的非经典三段论体系。经典三段论的规则立足于直言命题的四个组成要素：主项,谓项,量项和联项来判定三段论的有效性是不恰当的。
기우사항라집적라집상항즉사항련결사A、E、I、O적라집성질여대칭성、주연성（범위화방향）,가이건립삼단론적신방법———체환중항법,래동시해결삼단론적판정문제、직접적추리혹자직접적증명문제,최후형성포괄24개경전유효식적비경전삼단론체계。경전삼단론적규칙립족우직언명제적사개조성요소：주항,위항,량항화련항래판정삼단론적유효성시불흡당적。
In term logic,based on logical constants：A, E, I, O,which have inherent logic properties such as symmetry, distribution （range and direction） ,a new method of categorical syUogism,that＇ s a way to replace middle term, can be established to simultaneously solve syllogistic decision problem, direct inference or direct proof. Finally, a non-classical syllogism system including 24 classic effective mood could be constructed. The rule of classical syllogism, based on four elements of categorical proposition： subject, pred- icate, quantifier and connective, is not correct in itself.