According to the fact that some objects of a kind of things have certain properties, it is concluded that all objects of this kind of things have this property, which is called inductive reasoning (induction for short). Induction is a process from special to general, which belongs to reasonable reasoning.

Deductive reasoning is the process of drawing specific statements or individual conclusions from general premises through deduction. The logical form of deductive reasoning is of great significance to rationality because it plays an irreplaceable role in correcting the rigor and consistency of human thinking.