Changes

Although a minimum of three threads or rings are required to form a [[Borromean knot|Borromean chain]], there is no maximum number; the [[chain]] may be extended indefinitely by adding further rings, while still preserving its [[Borromean knot|Borromean]] quality (i.e. if any of the rings is cut, the whole chain falls apart).

[[Lacan]] first takes up the [[Borromean knot]] in the [[seminar]] of 1972-3, but his most detailed discussion of the [[knot]] comes in the [[seminar]] of 1974-5.

==See Also==

{{See}}

* [[Torus]]

* [[Topology]]

{{Also}}