Seminar XXIV Final Sessions 1 - Lacan in Ireland

shouldn’t tell you, at 7.15 at Jussieu and you can ask him where, I hope thatmany of the people who are here will go there – he pointed out to me veryspecifically that these rings of string only held up on condition of beingsomething that must be called by its name, a torus. In other words, there arethree tori; there are three tori which are necessary, because if they are notpresupposed, one cannot demonstrate the fact that these tori are necessitatedby the reversal of the aforesaid tori; in other words a torus, we are used todrawing it like that, naturally it is a completely inadequate drawing, sinceone does not see, unless one indicates it explicitly in this form, that it is asurface and not at all a bubble in a ball.That this surface can be turned inside out, has properties from which itresults – I once recalled that the torus can be turned inside out – from whichit results that it is thanks to that that it appears, that turned inside out, thetorus which for example is supposed to be one of three, this one forexample, that when turned inside out the torus contains the two other ringsof string which themselves ought to be represented by a torus, namely, thatwhat you see here, which I drew in this way, ought, not to be drawn as Ihave just begun to draw it, but to be drawn like that namely, two other tori,and two other tori, are not two other rings of string. Does that mean thatthese three tori are Borromean knots? Absolutely not. For, if this is the waythat you cut the torus which is for example the one that I have designatedhere (1), if that is the way you cut it, it does not free the two other tori. You92