Abstract

How synthetic a priori judgments possible problem is that Kant's "Critique of Pure Reason," the basic problem. Possibility of a priori truth is the problem, and integrated synthetic a priori judgments is to answer the key question of truth. This comprehensive concept of Kant's four-fold meaning of the study, which is a comprehensive concept of logic, epistemology, the concept of an integrated, comprehensive concept of methodology, the comprehensive concept of ontology. In this paper, the analysis related to the concept of a joint examination, but also pointed out that the concept of comprehensive and clues throughout the cornerstone of criticism lies. How the sythetic judgements a priori are possible is the basic problem of kant's critic of pure reason. The question of the possibility is also the question of transendental truth, and to answer it, the concept of synthesis is the pivot. The fourfold meaning of the concept of synthesis is investigated in this article, which is the sythesis of the logic, the epistemology, the methodology, and the ontology. The related concept of analysis is also investigated jointly, but it is emphasized that the concept of synthesis is the footstone and clue of the whole critic.