普通逻辑教学中的周延性问题──欧拉图解判定法

Problems concerning rules of distribution for lexical items while giving lectrues in general logic

本文针对学生对普通逻辑教学中词项的周延性问题的疑惑，利用欧拉图的判定方法，通过直观的形式，并从是否具有必然性的角度分析了性质判断中主谓项的周延性情况。本文认为此种方法具有很强的说服力，可为广大的师生所采纳。

In view of strdents' puzzles about the rules of distribution for lexical items while given lectures in general lope, this paper introduces a teaching mething method in which, with the help of the direct-vision method and from the angle of whether there exists necssity, the judging criterion for Euler's diagram is used to analyze the distribution between subject and predicate in a property judment. The teaching method is considered hide effective and worthy of recommendation.