Logic is a science that studies thinking, rules and laws of thinking. Learning logic helps people to correctly understand objective things and acquire new knowledge. Learning logic helps people to accurately express their thoughts, strictly demonstrate their thoughts, learn logic, and help people expose and correct fallacies and refute sophistry.

Logic refers to the law of thinking, and logic is a theory about the law of thinking, also known as jurisprudence. Logic is a branch of philosophy. It is the study of the law of thinking. The development of logic and logic has gone through three stages: from concrete logic to abstract logic, and then to symmetrical logic in which concrete logic and abstract logic are unified.

Logic is the study of thinking. All thinking has two aspects: content and form. Thinking content refers to the object and its attributes reflected by thinking. Thinking form refers to different ways of reflecting objects and their attributes, that is, different ways of expressing thinking content. From a logical point of view, the three basic forms of abstract thinking are concept, proposition and reasoning.

Logic, especially formal logic, is the cornerstone of establishing modern natural science. Without the logic of ancient Greece, there would be no modern natural science that began in the west. It's a pity that everyone habitually uses logical rules every day, but they don't feel the importance of logic. It is also a pity that high schools or universities in China ignore this kind of education.