 Complete the following phrase:  Bogdanov gave a lecture to a club at Moscow University, which, according to Yakov Yakovlev, included an account of the formation of Vpered and reiterated some of the criticisms Bogdanov had made at the time of the individualism of certain leaders. Yakovlev further claimed that Bogdanov discussed the development of the concept of proletarian culture up to the present day and discussed to what extent the Communist Party saw Proletkult as a rival. He further hinted at the prospect of a new International that might emerge if there were a revival of the socialist movement in the West. He said he envisaged such an International as merging political, trade union, and cultural activities into a single organisation. Yakovlev characterised these ideas as Menshevik, pointing to the refusal of Vpered to acknowledge the authority of the 1912 