The Oblivion of Beings

What I intend to demonstrate in this paper is that Heidegger pretends immunize his philosophy from any possibility of refutation. The thesis argue precisely because the ontological cannot be corroborated by empirical realm and, on other hand, does not provide a foundation for what he considers priori, German philosopher shields kind reply: beings at same time, it can only reached “leap” (Sprung). question is: priori founded? how establish validity or legitimacy horizon? There seems no answer.