『논어(論語)』에 적용된 체용논리(體用論理)와 음양론(陰陽論) = CheYong logic and EumYang Theory Applied to the Analects of Confucius

다국어 초록 (Multilingual Abstract)

Some say that there is no logic in the East so western logic has to be adopted, while others argue that the correct-naming principle(正名論) is eastern logic. However people from the east had been used appearance-hiddenness principle(顯微論) and root-branches principle(體用論) as their logic. Therefore this paper tries to prove the existence of CheYong logic(體用論理學), which was the logic from the east.
Appearance-hiddenness principle is that the core-being(=微) is in the outward appearance(顯), and is also the cause of it. Root-branches principle is that the core-being from appearance-hiddenness principle become root(=體) which changes and grows to become branches(=用) while maintaining its nature. As such, appearance-hiddenness principle and root-branches principle are interconnected, collectively known as CheYong theory(體用理論). CheYong theory is both a natural law and people's principle of conduct. Eastern people believe that it is logical and reasonable to think and act on this basis. This kind of thinking and reasoning is CheYong logic.
Inductive method is a method of making conclusion by collecting same cases based on the principle of identity, but appearance-hiddenness principle is the principle that there is core-being which penetrates conflicting phenomena. Deductive method is a method of drawing conclusions from the major premise, but the root-branches principle is the principle that the root(=體) change and grow in contrast to each other. This contrast is EumYang. CheYong theory and EumYang theory are systematically fused. In the text, the examples used in the Analects of Confucius were analyzed in detail by applying CheYong theory and EumYang theory.
In the past, CheYong logic was widely used among scholars as well as in everyday life, but recently it has been greatly reduced as we have become accustomed to Western formal logic. In the future, if formal logic and CheYong logic are used together, the disadvantages will be complemented and the advantages will be magnified and greatly useful.