"Copulative" is a what kind of book

"Copulative" is the fourth version of the existing "yi", it summed up in general"The I ching"'s sense of honor, is "yi" version of the seven kinds of ideological level of the highest."Copulative" thought, the zhouyi is a book about the way of saint, the way of the so-called sage has four kinds: one is found, the second is watching, is three, four is accounted for."Copulative" to explain the meaning of the hexagrams and Numbers hexagram, used methods have take righteousness, as said, hexagram said;Die also discussed the process of divination, and use mathematical method to explain the zhouyi divinatory method; and trigrams to produce and forming.