What logic did you learn?

Logic is the law of thinking, also known as principle, reasoning and inference, and it is a philosophical study of effective inference. The essence of logic is to find the relative relationship between things and infer the unknown from the known. Logic is a theory about the laws of thinking.

Logic can be divided into broad sense and narrow sense. Logic in a narrow sense refers to the science of reasoning, that is, the science that only studies how to draw conclusions from premises. Logic in a broad sense refers to the science of studying thinking forms, laws and logical methods. The research scope of generalized logic is relatively large, which is a traditional understanding and has a lot to do with philosophical research. The whole system of logic discipline is very large and complex, such as: traditional, modern and dialectical, deductive, inductive and analogical, classic and non-classic, and so on. But no matter how complicated it is, there are similarities, such as: the method of constructing judgment; Carry out inevitable reasoning; Identify with logical truth or law, etc.

The development of logic and logic has gone through two stages: traditional logic (formal logic) and dialectical logic, and dialectical logic has two stages: contradictory logic and symmetrical logic. Symmetric logic is the latest achievement of logic development, the advanced stage of dialectical logic and the highest stage of logic development. Symmetric logic is the concept, category and category system of symmetric logic, which was founded by Chen Shiqing, a famous scholar in China.