This article intends to situate the Lacanian psychoanalysis in relation to structuralism. The authors describe the appropriation made by Lacan of the derivative concepts from linguistic and anthropologic structuralism and also the subversion movement produced by him. The subject of the unconscious is the nuclear operator that allows the evaluation of the particular statute from the structural line of Lacan's thought. If the language structure, in a given moment of this author's theory, is the epistemic area that defines the specificity of the psychoanalytical device, this structure, however, places in a position of external inclusion, a strange existence: the subject.
Structuralism; psychoanalysis; language; subject of the unconscious; modern science