Abstract
This article aims to demonstrate that Jacques Lacan’s assertion that modern science was the condition of possibility of the emergence of psychoanalysis derives a set of propositions: to modern science; psychoanalysis could only arise in the modernity of thought; and between psychoanalysis and science there is a logic of compatibility. To do so, from an epistemological point of view, the article aims to define the status of a world affected by modern scientific activity as opposed to the ancient world. This led research to the axiomatic, in a broader scope, from Descartes’ works and mathematical physics, which proposes a caesura that affects all existing discourses. With the mathematization of thought, the qualities of the existent were abolished, thereby providing the propitious ground for the emergence of the subject of the unconscious, which Lacan will allocate between signifiers, promoting an essentially modern theory of the subject.
Keywords:
psychoanalysis; science; subject; signifier