Tra «Walten-lassen» e «Sein-lassen». Sull’influenza della Vorlesung heideggeriana del 1929-30 sul pensiero dell’event

The aim of this essay is to highlight the persistent presence of the concepts of “Projection” (Entwurf) and “Letting-prevail” (Walten-lassen) introduced by Heidegger in his 1929-30 university course (The Fundamental Concepts of Metaphysics. World, Finitude, Solitude) in the works in which the author attempts to think the “Event” issue. The first part of the paper shows how within the same course of 1929-30 there is a paradigm shift on Heidegger’s part in his understanding of the topic of the projection; in the second part an attempt is made to show how the conception of Entwurf and Walten-lassen that he arrives at in the final part of the course are the same one that, although in a different theoretical context, he thematizes in the Contributions to Philosophy.