How did the Book of Changes "Nine for Lao Yang and Six for Laoyin" come from?

Useful changes don't need to be positive, instead of seven, seven is a positive number and nine is a positive variable. Obviously, the meaning of nine characters is based on the study of meaning, which directly expresses the significance of extreme changes in the Yi-ology. Count nine (ten to one), and it is easy to become poor. One-to-one correspondence between the two forms the ultimate relationship of image numbers, and one-to-one correspondence between name and reality is also the principle of image numbers, just like one-to-one correspondence between image numbers. Therefore, the production of nine characters, like the shape of the end (change is the most wronged), has a sense of regression of image number, because nine is the extreme number. Call it "Lao Yang"

Yin becomes six, and the so-called six is the old yin, so the text changes. Contrary to Jiuyang, it is called "Laoyin".

"Easy to dry chisel" says: "Those who mourn the emperor and offer sacrifices." Accordingly, all articles are based on divination. Naturally, Confucianism comes first. However, Yang is called "nine" and Yin is called "six". There are two sayings: one is that Gan Shen has three paintings, and the other is that Kun Shen has six paintings, so the number is nine, and Yin can't be both Yang and Yin, so it is six. Lao Yang is nine, Lao Yin is six, both Lao Yin and Lao Yang have changed, and Zhouyi is dominated by changers. Therefore, Du Yuankai's Notes on Nine Years and Zheng Kangcheng's Notes on Changes both called Zhouyi the change of owners, so it was called Jiu Liu. So count to nine, count to six, and the number of slaps is the number of slaps. In nine cases, you will get Lao Yang, and in six cases, you will get Laoyin. Its shaoyang is called seven and shaoyin is called eight. This is also a fact. Zhang thinks that the number of yang is 79 and the number of yin is 86, but seven is shaoyang and eight is shaoyin, which is the essence of human body. Nine is the old yin, and six is the old yin, so the text changes, so it is an alias for Xian. And seven is a Yang, whose paintings are always very long. Today, there are nine, which can't be painted as yang, so we value money and avoid seven numbers of yang, so we call it nine. Eight is to draw the yin for the number of yin, and now six is the old yin, so you can't draw the yin. Therefore, paying money, avoid eight and call it six.

Above, I hope to help you.