From One Turn to the Other

(161) The starting point of psychoanalytic logic is the Heteros, the ‘notall’. If Plato’s Parmenides opens out onto the Heteros, we must nevertheless await the coming of the practice of ab-sense or psychoanalysis to set en route the logic of the Heteros; for it is only in ‘the equivocation of the signifier’ that the logic of the ‘notall’ appears as logic of the impossible or logic of the reversal proper to the roundabout of discourses.…