Question: Which ideologies helped formalize the ideas of the third member of the triumvirate, along side Zinoviev and Kamenev,. 

Black & White is a non-fiction book written by Shiva Naipaul and published by Hamish Hamilton in the U.K. in 1980.  It was published with the title Journey to Nowhere: A New World Tragedy in the U.S.  The book is based on Naipaul's trip to Guyana in the aftermath of the Jonestown Massacre, and his subsequent trip to the United States, in which he explored links between the People's Temple and other groups and individuals.  Naipaul attempted to connect Rev. Jim Jones, founder of the People's Temple, with disparate parts of California's counterculture, and Guyanese and other Third World governments and the revolutionary ideologies which supported them.  Naipaul was highly critical of these and other movements, including black theology, the nascent New Age movement and EST, in as much as they helped, in his analysis, to create fertile ground for the People's Temple to flourish on the two continents.  The book's US paperback cover tagline reads "How American ideas and ideologies led to the mass suicide of 900 people in Jonestown, Guyana." <SEP> Joseph Vissarionovich Stalin (18 December 1878 – 5 March 1953) was a Georgian-born Soviet revolutionary and political leader.  Governing the Soviet Union as its dictator from the mid-1920s until his death in 1953, he served as General Secretary of the Central Committee of the Communist Party of the Soviet Union from 1922 to 1952 and as Premier of the Soviet Union from 1941 to 1953.  Ideologically a Marxist and a Leninist, Stalin helped to formalise these ideas as Marxism–Leninism while his own policies became known as Stalinism. <SEP> Lessons of October ( "Уроки Октября)" is a polemical essay of about 60 printed pages in length by Leon Trotsky, first published in Moscow in October 1924 as the preface to the third volume of his "Collected Works."  The essay was harshly critical of the purported revolutionary failings of Grigory Zinoviev and Lev Kamenev, two key members of the collective leadership which briefly ruled Soviet Russia in the months after the death of V.I. Lenin.  Publication of the essay was used as a pretext for the Soviet leadership to isolate and attack Trotsky, whom the leadership mutually perceived as a threat to accede to supreme power. <SEP> The Left Opposition was a faction within the Bolshevik Party from 1923 to 1927, headed "de facto" by Leon Trotsky.  The Left Opposition formed as part of the power struggle within the party leadership that began with the Soviet founder Vladimir Lenin's illness and intensified with his death in January 1924.  Originally, the battle lines were drawn between Trotsky and his supporters who signed The Declaration of 46 in October 1923, on the one hand, and a triumvirate (also known by its Russian name "troika") of Comintern chairman Grigory Zinoviev, Communist Party General Secretary Joseph Stalin and Politburo chairman Lev Kamenev on the other hand.  There was also the Right Opposition, which was led by the leading party theoretician and "Pravda" editor Nikolai Bukharin, and supported by Sovnarkom Chairman (prime minister) Alexei Rykov.  The Right Opposition were allied to Stalin's Centre from late 1924, until their alliance broke up in the years from 1928–1930 over strategy towards the Kulaks and NEPmen.  In late 1924, as Stalin proposed his new Socialism in One Country theory, Stalin drew closer to the Right Opposition and his "triumvirate" with Zinoviev and Kamenev slowly broke up over the next year.  Trotsky and his supporters in the Left Opposition were joined by the Group of Democratic Centralism.