摘要
用集合论的观点对古典的数学归纳法给出严格的证明，并对数学归纳法的基本形式加以推广，从而使数学归纳法有了理论根据，扩大了其应用范围。
From the viewpoit of Set Theory, the article strictly proved the mathematical induction and spreaded the basic forms of mathe-to apply mathematical induction and enlarged its scope of application.
关键词
数学归纳法
良序集
Set Theory Mathematical Induction.
