1. comparison, such as comparing the human brain with a computer; For example, the sentence "For example ..." in the text. 2. The total logical score is 3. The first sentence is the first layer, explaining the research object and foundation of fuzzy mathematics. The second layer explains the characteristics of fuzzy sets from the second sentence to "quantitative analysis". From "therefore" to the end of this paragraph is the third layer, which explains the significance of fuzzy mathematics. 4. Elaborate fuzzy mathematics from three aspects: inevitability, theoretical basis and research object, wide application and development prospect. Fuzzy mathematics will make computers and robots have artificial intelligence.