论文部分内容阅读
人民教育出版社高中数学A版《必修1》第13页阅读与思考:《集合中元素的个数》最后提出了一个问题,现原话引用如下:“有限集合中元素的个数,我们可以一一数出来,而对于元素个数无限的集合,如A={1,2,3,4,
People’s Education Press High School Mathematics A ”Compulsory 1“ Page 13 Reading and Thinking: ”The number of elements in a collection“ finally raised a question, the original quote is as follows: ”the number of elements in a finite set, we Can be counted out one by one, but for the infinite number of elements set, such as A = {1,2,3,4,