La siguiente escritura trata de resaltar la importancia del principio de no contradicción en la clínica psicoanalítica, especialmente en la lógica que Lacan transmitió. Palabras clave Aristóteles - Imposible - Real - Inconsciente ABSTRACT THE REALITY OF A LINK MUST BE ADMITTED, BUT ABOVE ALL FROM A DISTANCE The following writing tries to highlight the importance of the principle of non-contradiction in the psychoanalytic clinic, especially in the logic that Lacan had been transmitted. Keywords Aristotle - Impossible - Real - Unconscious