For 10 points, name this psychoanalyst whose thought is collected in Ecrits, and who proposed the mirror phase.
This thinker used a dollar sign, a less than sign, a greater than sign, followed by the letter a, to create the "matheme," a symbol that shows interconnection between various entries of a "vector of desire." He divided life into the phases of the real, the symbolic and the imaginary in a lecture that ultimately rejects any simple definition of truth. He argued that the title document is a signifier of the unknown in his seminar on (*) Poe's The Purloined Letter. This thinker argued that babies perceive of themselves through an object that is able to induce apperception. For 10 points, name this psychoanalyst whose thought is collected in Ecrits, and who proposed the mirror phase.
This thinker used a dollar sign, a less than sign, a greater than sign, followed by the letter a, to create the "matheme," a symbol that shows interconnection between various entries of a "vector of desire."
Jacques Lacan