邏輯有共同性，也有特殊性。主導的推理類型不同，是希臘邏輯、印度因明、中國邏輯三者彼此有別的重要方面。本文認為：推類是中國邏輯的主導推理類型。推類是以類同為依據的推理，有類比推理的邏輯性質，有重內容、輕形式的特徵。推類以及推類成為有國邏輯主導的推理類型，是先秦文化制約的結果。所以，對推類的理解與說明，應是文化的詮釋。

　　　　　Logic is common as well as particular. The significant distinction among Greek logic, Indian logic, and Chinese logic is the difference in the dominant type of reasoning. In this paper, it is assumed that the primary type of reasoning in Chinese logic is inferences, which is grounded in similarity, characterized by the stress on content rather than form, and logically informed by analogy and reasoning. Inference and its dominance in Chinese logic are consequences of the conditioning of the pre-Qin culture. Therefore, the understanding and explanation about inference should be a cultural interpretation.