Peirce, Lacan e a quest？o do signo indicial

the relationship between lacan and peirce has not been given much consideration in the psychoanalytical bibliography. however, the reference to peirce is a constant in lacan's teachings from the sixties. on the other hand, the analysis of this reference permits us to situate an important theoretical discontinuity in his teachings. this discontinuity concerns an important modification in the theory of the signifier based on the introduction of the concept of sign. the article aims to explicit the theoretical differences between peirce and lacan and their particular use of some concepts coming from pragmatism.