Campbell, Kirsten. Jacques Lacan and Feminist Epistemology, New York: Routledge 2004.
In the Discourse of the Analyst, a stands in the place of the agent, the $ in the place of the Other, S2 in the place of truth, and S1 in the place of product (Seminar 20 16). In this Discourse, the excluded a puts the subject to work and is the cause of desire. the subject addresses its unconscious as other in its recognition that the Symbolic order produces the barred subject. In this discourse, ‘the subject manifests himself in his gap, namely, in that which causes his desire’ (Seminar 20 11). Knowledge functions in the place of truth, that is, the truth of the subject. Savoir (S2) functions as truth and thus symbolic knowledge is the register of the Analyst. In its articulation of the truth, the subject articulates the master signifier that represents it. For this reason, the master signifer is the product of the Discourse of the Analyst (S20 16-17).