In this paper I try to show how transcendental logic can be interpreted in light of the distinctionbetween apophantics and formal ontology. Despite the non-Kantian origin of these concepts, my contention isthat they can reveal the scope of Kant’s argument regarding the distinction between formal and transcendentallogic and the thesis that transcendental logic has a pure a priori content. While common approaches interpret thisa priori content of transcendental logic as the content pure forms of aesthetics give, we stress that this content isthe a priori concepts of object which are embedded in the logical form of judgments.