Superimposing a critical design involving the dogmatic foundations of knowledge ontologies that are necessary to work that involves the seizure of philosophical questions, Kant’s project proposes the end of philosophy as metaphysics construction and the need to assign it an essentially genealogical theoretical task of character and critical in order terminating the legitimacy of rational knowledge by analyzing the colleges that you are linked, as the article points out, that holds the rights of reason whose legitimacy the logic of truth and whose illegitimacy recognizes the logic of appearance betrays, converging to the borders that have the potential construction of scientific knowledge, as, making understanding the universal nature of the legislature and circumscribing the use of categories to the limits of possible experience, proposes the conditions necessary to sling it on judgments synthetic a priori.