This philosopher offered an intersubjective definition of being Jewish in Anti-Semite and Jew.
This philosopher offered an intersubjective definition of being Jewish in Anti-Semite and Jew. He refuted Gyorgy Lukacs's philosophy in Search for a Method, before describing the "practico-inert" and "praxis" in his Marxist theory of class in its unfinished sequel, Critique of Dialectical Reason. This Continental philosopher broke from phenomenology by characterizing the ego as an incidental object in Transcendence of the Ego, and described the creation of essence by the authentic being-for-itself in his most famous work. For 10 points, name this existentialist who described a case of bad faith in Being and Nothingness. 
This philosopher offered an intersubjective definition of being Jewish in Anti-Semite and Jew.
Jean-Paul Sartre 