[[Lacan]] introduces the term in 1975, as the title for the 1975-6 [[seminar]], which is both a continuing elaboration of his [[topology]], extending the previous [[seminar]]'s focus on the [[borromean knot]], and an exploration of the writings of [[James Joyce]].
Through this ''coincidentia oppositorum'' -- bringing together [[mathematics|mathematical theory]] and the intricate weave of the [[James Joyce|Joycean]] text -- [[Lacan]] redefines the [[psychoanalytic]] [[symptom]] in terms of his final [[topology]] of the [[subject]].