Zinoviev gradually lost interest in the logical circle, where Shchedrovitsky moved to the role of leader. Zinoviev had his own ambitions, he was not satisfied with the "collective farm" and "party" model circle (as per Pavel Fokin). In 1955, he received the position of junior researcher at the Institute of Philosophy of the Academy of Sciences of the Soviet Union (sector of dialectical materialism), where he felt comfortable. The institute was primarily an ideological institution with rigid orders, but a certain revival (as described by Vladislav Lektorsky) of philosophical thought in the 1950s made it possible to pursue science, including in the field of logic, which Zinoviev recognized. In the second half of the 1950s, the formation of logical science took place, textbooks, collections, collective monographs were published, and methodological seminars were held. Zinoviev was actively involved in scientific work, but the first articles were rejected at sector meetings, which, according to Pavel Fokin, was an echo of the story of Ilyenkov, who was then persecuted. Group mates (Mamardashvili and others) considered the choice of mathematical logic as an academic career as a departure from the struggle in the direction of security and well-being; Zinoviev's disciple Yury Solodukhin drew attention to his disappointment in the speculative nature of Marxism.