集合是现代数学的重要分支之一，也是现代数学的理论基础，它主要是由德国数学家康托
尔创立的。发展至今，已成为了一门比较完善的学科，它贯穿于中学数学的整个体系。从集合论的观点看，集合论高度的概括了中学数学的内容，因此能更好的从总体上把握中学数学的研究对象。用集合论的语言来表述有关概念，使其更为简洁，明了。同时，集合论的思想对解题也具有指导作用。
Collection is an important branch of modern mathematics, and is also the theoretical basis of modern mathematics, it is mainly by the German mathematician Cantor

Seoul created. Development so far, has become a more perfect discipline, which runs through the entire system of mathematics in secondary schools. From the point of view of set theory, set theory of summary of the high content of secondary school mathematics, so they can better grasp the overall study of mathematics in secondary schools. Set the language used to express the concept, make it more concise and clear. At the same time, the idea of set theory on the problem-solving also has a guiding role.