1, the detective has the appearance of some things to do gradual reasoning, which must be a logical exercise. China also has such courses, such as the Judicial School. It is said that learning mathematics to exercise thinking is only the purpose, because you can't learn science and engineering without learning mathematics. 2. Who told you that the ancients didn't study mathematics? Excuse me, who was the first to achieve pi 3. 14? It's from China. China's achievements in mathematics were brilliant in ancient times, but at that time he paid more attention to literature, which did not mean that the ancients did not learn mathematics. It is said that mathematics only exercises logical ability, not produces logical ability like giving birth to a child. Don't confuse concepts. 3. To judge whether a person is smart, do you take logical ability as the standard? You also said that you were relaxing, not that you didn't study. Universities in western countries did much better research than China. 4. It is not only people in China who say that mathematics can exercise logic. You can go to the website to find information yourself.