Destructionis destructio. Heidegger, Foucault and medieval thought

After three years devoted to the invention of the modern subject (2013-2014), through an archaeology of the subject of will and action (2014-2015), then of the subject of passion (2015-2016), a new three-year cycle has begun, ultimately devoted to the deconstruction of the Heideggerian deconstruction of the history of metaphysics and, more immediately, to a double deconstruction or rather a redoubled deconstruction: firstly, of Heidegger's and Foucault's relationship to medieval thought - thus also, and firstly, of Foucault's relationship to Heidegger; secondly, but in the medium term, of the impact of their respective "narratives" on medieval studies in France and the place of the Middle Ages in the history of philosophy. Conducted over fourteen one-hour lessons, the lecture began by comparing Heidegger's history of Being(Sein) and/or Estre(Seyn) with Foucault's history of truth, analysing in detail Foucault's Heideggerian readings during his student years, tracing the stages and presenting the players involved in Heidegger's first reception in France (1930-1950), examined the different phases of Heidegger's conception of essence, subject and the locus of truth, following the thread of his work on the medieval theory of truth-correspondence, and set out the elements necessary for a three-way confrontation between Heidegger, Foucault and medieval thought on the question of the relationship between existence and truth.