ABSTRACT
Jacques Lacan had introduced the notion of convergence, which has the advantage of being situated in the field of the topology of signifiers, and is therefore more accessible with respect to problems of clinical practice. The question arises of whether to explain the signifying term which seems to produce a point of convergence, and of whether or not to offer this to the analysand. The effects of interpretation are incalculable, Lacan said, because they concern puissance. In fact, it was unforeseeable that it should have been by means of the print, of the look, that the patient would recapture the signifying chain. The matheme which inspired the expression 'convergence' is the schema of the flattening out of the Borromean knot, as Lacan presented it at the time of his growing interest in knots. The 'defect of signification' is found in the equivocation, the logical functioning, around the fact of knowing who rejects whom, or what.
