Mathematicinduction is used to validate the existence of nature of the Up-side Down Triangle and its testification is given in the paper.
应用数学归纳法验证了“倒三角形”一些性质的存在性,并给出这些性质的证明。
2
Mathematicinduction is a typical syllogism, it is not complete induction, its base is the property of natural sequence, but not logic axioms.
数学归纳法推理是典型的三段论,而不是完全归纳法,其基础是自然数列的性质,而不是逻辑公理。
3
Based on analysis of a typical case in teaching course of recursion, the thesis explains recursion through mathematicinduction, the new way of teaching produces a good effect.