Ernesto Laclau. Philosophical roots of discourse theory

Analytical philosophy: the later Wittgenstein.

Phenomenology: the existential analytic of Heidegger

Structuralism and post-structuralist. Critique of the sign: Barthes, Derrida, Lacan.

Barthes’ criticism of the strict separation between connotation and denotation, as it takes place in his later work, especially in S/Z, Derrida’s notion of écriture and the critique of the logic of supplementarity accompanying it, and Lacan’s logic of the signifier, which radically questions the relation between signifier and signified and conceives the bar separating them not only as a link making possible signification but as an obstacle to it.