Yes Introduction to Algebra introduces the basic concepts and tools of abstract algebra in detail, including sets and operation symbols, equality and inequality, natural numbers, coprime integers and greatest common divisor, completion of rational number fields, polynomials, groups and subgroups, fixed points of Lagrange and Levi's theorems, basic knowledge of permutation groups, generalized functions, * * yoke problems, infinite groups and so on, which can be used as teaching materials.