The three-paragraph theory refers to the premise of judging by two contained and one common nature. A new nature is derived to judge the deductive reasoning of the result. Deductive inference refers to the reasoning that the premise of ordinaryity puts forward the conclusion of particularity.
According to the above definition, which of the following options belongs to the three-paragraph theory?
All sparrows have feathers, all pigeons have feathers, so all birds have feathers