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==Jacques Lacan==
References to [[knot]]s can be found in [[Lacan]]'s [[Works of Jacques Lacan|work]] as early as the 1950s,<ref> {{E}} p.281</ref> but it is not until the ealy 1970s that [[Lacan]] begins to examine [[knot]]s from the point of view of their [[topology|topological properties]].
==Topology==
In this late period of his work, one kind of [[knot]] comes to interest [[Lacan]] more than any other: the [[Borromean knot]].
The [[Borromean knot]] -- shown to the right -- so called because the [[List of Figures|figure]] is found on the coat of arms of the Borromeo family, is a group of three rings which are linked in such a way that if any one of them is severed, all three become separated.<ref>{{S20}} p.112</ref>
==Chain==
