在简易逻辑的教学中 ,常因为对逻辑联结词的使用不当而导致一些错解 .本文将就一些常见的错解进行分析 ,供读者参考 .例 1　 ｐ :9的平方根是 3.写出非 ｐ并判断真假 .错解　有人认为非 ｐ是“9的平方根不是 3” .并认为“9的平方根不是 3”是一个假命题 ,从而出现ｐ与非 ｐ均 In simple logic teaching, some mistakes are often caused by improper use of logical connectives. This article will analyze some common misconceptions for readers’ reference. Example 1 The square root of p:9 is 3. p and determine the true and false. Some people think that non-p is “9’s square root is not 3’” and that “9’s square root is not 3” is a false proposition, resulting in both p and non-p