When we study mathematics, we will not only learn some knowledge and concepts, but also come into contact with some mathematical terms. Mathematical terms are also some languages related to mathematics, such as natural numbers, positive numbers, negative numbers, odd numbers, even numbers, attribution and so on. Are all mathematical terms, so what's the difference between belonging and being included? The difference between belonging to and being included in mainly includes the following aspects: 1, which has different meanings. Belonging to something is an element of a set A, and all elements contained in a set A are elements of another set B. 2. In mathematics, the symbols of the two are different, and the symbol belonging to mathematics is ∈. What symbols are included in mathematics? . 3. The relationship expressed mathematically is different, which belongs to the relationship between elements and sets. Included in the representation set and the relationship between the sets.