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[[object ]] is first introduced, [[Lacan ]] says that the lozenge simply implies [. . .] that what is at stake is commanded by the quadraticrelation [. . .] that states that there is no conceivable [[barred ]] [[subject ]] [. . .] that is not sustained by the ternary relation A á á.([[Seminar ]] V, p. 316)

In [[other ]] [[words]], the lozenge stands for the fact that each subject is characterized by the [[whole ]] of the L [[schema ]] ([[Figure ]] 1), by allfour vertices of it, including both [[imaginary ]] and [[symbolic ]] axes.This is obviously but an early [[sketch]], for just a few months later Lacan says, in a footnote to “Direction of the [[Treatment]],”that “The [[sign ]] ◊ [[registers ]] the relations envelopment-[[development]]-conjunction-disjunction.” And in [[Seminar XI ]] he indicatesthat the lozenge can be [[understood ]] as referring to the operations of union and intersection in set [[theory ]] and the [[psychoanalytic]]operations of [[alienation ]] and [[separation]]. Nevertheless, the [[L Schema ]] is still centrally involved in Lacan’s [[diagrams ]] of the Sadian[[fantasy ]] in “Kant “[[Kant]] with [[Sade]],” written in 1962.