《“数学归纳法”释疑》疑未尽青海省刚察县刚察中学马孝芳读了本刊１９９７年第１—２合期上杨会军、郭树芬两位老师的《“数学归纳法”释疑》一文（下称杨文），深感两位老师能将这一重要解题方法中的某些疑虑公开作答实在难得．但读后总觉意犹未尽，还有一些话要说．首... “Mathematical Induction Act,” Doubtfulness, Suspected, Not Extinguished, Justin School, Gangcha County, Qingchao County, Qinghai Province Read the article “Mental Inference” of the two teachers of Yang Huijun and Guo Shufen in the 1st to 2nd period of the 1997 issue of the magazine. (Hereinafter referred to as Yang Wen), deeply feel that the two teachers can publicly answer some of the important questions in this important solution. However, after reading it, I still have a lot to say. There are still some things to say. first...