ABSTRACT
Quite imperceptibly, between 1972 and 1975, Lacan brings about a slippage in the negation regarding sexual rapport, going from ‘there is no rapport’ to ‘there is a non-rapport’, from the inexistence of such a rapport to the existence of such a non-rapport. The nuance might appear rhetorical if there were not grafted onto it a change of perspective which takes support on the key instrument in the teaching of these years of the seventies: the Borromean knot. The non-rapport has not found its object and remains an affirmation that must be referred to its enunciating, not just Jacques Lacan, in his idiosyncrasy, but also the totality of his teaching in which the precise conditions of this construction were forged. To export this enunciation to other ways of knowing, other practices, other styles, is not self-evident. The light that it projects on sexual difference has not made the starting ambiguity vary.
