2 + 2 = 5

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Short description: Example of Party logic presented in Nineteen Eighty-Four

File:Allais - Deux et deux font cinq (2+2=5).djvu

The mathematically incorrect[1] phrase "two plus two equals five" (2 + 2 = 5) is best known in English for its use in the 1949 dystopian novel Nineteen Eighty-Four by George Orwell, as a possible statement of Ingsoc (English Socialism) philosophy, like the dogma "War is Peace", which the Party expects the citizens of Oceania to believe is true. In writing his secret diary in the year 1984, the protagonist Winston Smith ponders if the Inner Party might declare that "two plus two equals five" is a fact. Smith further ponders whether or not belief in such a consensus reality makes the lie true.[2]

About the falsity of "two plus two equals five", in Room 101, the interrogator O'Brien tells the thought criminal Smith that control over physical reality is unimportant to the Party, provided the citizens of Oceania subordinate their real-world perceptions to the political will of the Party; and that, by way of doublethink: "Sometimes, Winston. [Sometimes it is four fingers.] Sometimes they are five. Sometimes they are three. Sometimes they are all of them at once".[2]

As a theme and as a subject in the arts, the anti-intellectual slogan 2 + 2 = 5 pre-dates Orwell and has produced literature, such as Deux et deux font cinq (Two and Two Make Five), written in 1895 by Alphonse Allais, which is a collection of absurdist short stories;[3] and the 1920 imagist art manifesto 2 x 2 = 5 by the poet Vadim Shershenevich, in the 20th century.[4]

Self-evident truth and self-evident falsehood

The logician and philosopher René Descartes established self-evidence as the standard of truth in the human perception of reality.

In the 17th century, in the Meditations on First Philosophy, in which the Existence of God and the Immortality of the Soul are Demonstrated (1641), René Descartes said that the standard of truth is self-evidence of clear and distinct ideas. Despite the logician Descartes' understanding of "self-evident truth", the philosopher Descartes considered that the self-evident truth of "two plus two equals four" might not exist beyond the human mind; that there might not exist correspondence between abstract ideas and concrete reality.[5]

In establishing the mundane reality of the self-evident truth of 2 + 2 = 4, in De Neutralibus et Mediis Libellus (1652) Johann Wigand said: "That twice two are four; a man may not lawfully make a doubt of it, because that manner of knowledge is grauen [graven] into mannes [man's] nature."[6]

In the comedy-of-manners play Dom Juan, or The Feast with the Statue (1665), by Molière, the libertine protagonist, Dom Juan, is asked in what values he believes, and answers that he believes "two plus two equals four".[7]

In the 18th century, the self-evident falsehood of 2 + 2 = 5 was attested in the Cyclopædia, or an Universal Dictionary of Arts and Sciences (1728), by Ephraim Chambers: "Thus, a Proposition would be absurd, that should affirm, that two and two make five; or that should deny 'em to make four."[8] In 1779, Samuel Johnson likewise said that "You may have a reason why two and two should make five, but they will still make but four."[6]

In the 19th century, in a personal letter to his future wife, Anabella Milbanke, Lord Byron said: "I know that two and two make four—& should be glad to prove it, too, if I could—though I must say if, by any sort of process, I could convert 2 & 2 into five, it would give me much greater pleasure."[9]

In Gilbert and Sullivan's Princess Ida (1884), the Princess comments that "The narrow-minded pedant still believes/That two and two make four! Why, we can prove,/We women—household drudges as we are –/That two and two make five—or three—or seven;/Or five-and-twenty, if the case demands!"[10]

Politics, literature, propaganda


In the political pamphlet "What is the Third Estate?" (1789), Emmanuel-Joseph Sieyès provided the humanist bases for the French Revolution (1789–1799).

In the late 18th century, in the pamphlet What is the Third Estate? (1789), about the legalistic denial of political rights to the common-folk majority of France, Emmanuel-Joseph Sieyès, said: "Consequently, if it be claimed that, under the French constitution, 200,000 individuals, out of 26 million citizens, constitute two-thirds of the common will, only one comment is possible: It is a claim that two and two make five."

Using the illogic of "two and two make five", Sieyès mocked the demagoguery of the Estates-General for assigning disproportionate voting power to the political minorities of France—the Clergy (First estate) and the French nobility (Second estate)—in relation to the Third estate, the numeric and political majority of the citizens of France.[11]

In the 19th century, in the novel Séraphîta (1834), about the nature of androgyny, Honoré de Balzac said:

Thus, you will never find, in all Nature, two identical objects; in the natural order, therefore, two and two can never make four, for, to attain that result, we must combine units that are exactly alike, and you know that it is impossible to find two leaves alike on the same tree, or two identical individuals in the same species of tree. That axiom of your numeration, false in visible nature, is false likewise in the invisible universe of your abstractions, where the same variety is found in your ideas, which are the objects of the visible world extended by their interrelations; indeed, the differences are more striking there than elsewhere.[12]

In the pamphlet "Napoléon le Petit" (1852), about the limitations of the Second French Empire (1852–1870), such as majority political support for the monarchist coup d'Ḗtat, which installed Napoleon III (r. 1852–1870), and the French peoples' discarding from national politics the Liberal values that informed the anti-monarchist Revolution, Victor Hugo said: "Now, get seven million, five hundred thousand votes to declare that two-and-two-make-five, that the straight line is the longest road, that the whole is less than its part; get it declared by eight millions, by ten millions, by a hundred millions of votes, you will not have advanced a step."[13]


Soviet propaganda: The "Arithmetic of an Alternative Plan: 2 + 2 plus the Enthusiasm of the Workers = 5" exhorts the workers of the Soviet Union to realise five years of production in four years' time. (Iakov Guminer, 1931)

In the late 19th century, the Russian press used the phrase 2 + 2 = 5 to describe the moral confusion of social decline at the turn of a century, because political violence characterised much of the ideological conflict among proponents of humanist democracy and defenders of tsarist autocracy in Russia.[14] In The Reaction in Germany (1842), Mikhail Bakunin said that the political compromises of the French Positivists, at the start of the July Revolution (1830), confirmed their middle-of-the-road mediocrity: "The Left says, 2 times 2 are 4; the Right, 2 times 2 are 6; and the Juste-milieu says, 2 times 2 are 5".[15][16][17]

In Notes from Underground (1864), by Feodor Dostoevsky, the anonymous protagonist accepts the falsehood of "two plus two equals five", and considers the implications (ontological and epistemological) of rejecting the truth of "two times two makes four", and proposed that the intellectualism of free will—Man's inherent capability to choose or to reject logic and illogic—is the cognitive ability that makes humanity human: "I admit that twice two makes four is an excellent thing, but, if we are to give everything its due, twice two makes five is sometimes a very charming thing, too."[18]

In the literary vignette "Prayer" (1881), Ivan Turgenev said that: "Whatever a man prays for, he prays for a miracle. Every prayer reduces itself to this: 'Great God, grant that twice two be not four'."[19] In God and the State (1882), Bakunin dismissed deism: "Imagine a philosophical vinegar sauce of the most opposed systems, a mixture of Fathers of the Church, scholastic philosophers, Descartes and Pascal, Kant and Scottish psychologists, all this a superstructure on the divine and innate ideas of Plato, and covered up with a layer of Hegelian immanence, accompanied, of course, by an ignorance, as contemptuous as it is complete, of natural science, and proving just as two times two make five; the existence of a personal god."[20] Moreover, the slogan "two plus two equals five", is the title of the collection of absurdist short stories Deux et deux font cinq (Two and Two Make Five, 1895), by Alphonse Allais;[3] and the title of the imagist art manifesto 2 x 2 = 5 (1920), by the poet Vadim Shershenevich.[4]

In 1931, the artist Yakov Guminer (ru) supported Stalin's shortened production schedule for the economy of the Soviet Union with a propaganda poster that announced the "Arithmetic of an Alternative Plan: 2 + 2 plus the Enthusiasm of the Workers = 5" after Stalin's announcement, in 1930, that the first five-year plan (1928–1933) instead would be completed in 1932, in four years' time.[21]

George Orwell

The anti-Nazi propagandist George Orwell, at the BBC during the Second World War (1939–1945).

Orwell used the idea of 2 + 2 = 5 in an essay of January 1939 in The Adelphi; "Review of Power: A New Social Analysis by Bertrand Russell":[22]

It is quite possible that we are descending into an age in which two plus two will make five when the Leader says so.

In propaganda work for the BBC (British Broadcasting Corporation) during the Second World War (1939–1945), George Orwell applied the illogic of 2 + 2 = 5 to counter the reality-denying psychology of Nazi propaganda, which he addressed in the essay "Looking Back on the Spanish War" (1943), indicating that:

Nazi theory, indeed, specifically denies that such a thing as "the truth" exists. There is, for instance, no such thing as "Science". There is only "German Science", "Jewish Science", etc. The implied objective of this line of thought is a nightmare world in which the Leader, or some ruling clique, controls not only the future, but the past. If the Leader says of such and such an event, "It never happened"—well, it never happened. If he says that "two and two are five"—well, two and two are five. This prospect frightens me much more than bombs—and, after our experiences of the last few years [the Blitz, 1940–41], that is not a frivolous statement.[23]

In addressing Nazi anti-intellectualism, Orwell's reference might have been Hermann Göring's hyperbolic praise of Adolf Hitler: "If the Führer wants it, two and two makes five!"[24] In the political novel Nineteen Eighty-Four (1949), concerning the Party's philosophy of government for Oceania, Orwell said:

In the end, the Party would announce that two and two made five, and you would have to believe it. It was inevitable that they should make that claim sooner or later: the logic of their position demanded it. Not merely the validity of experience, but the very existence of external reality, was tacitly denied by their philosophy. The heresy of heresies was common sense. And what was terrifying was not that they would kill you for thinking otherwise, but that they might be right. For, after all, how do we know that two and two make four? Or that the force of gravity works? Or that the past is unchangeable? If both the past and the external world exist only in the mind, and if the mind itself is controllable—what then?[25]

Contemporary usage

Politics and religion

Political graffiti in Havana, Cuba questioning government policy perceived to be "2+2=5"

In The Cult of the Amateur: How Today's Internet is Killing Our Culture (2007), the media critic Andrew Keen uses the slogan "two plus two equals five" to criticise the Wikipedia policy allowing any user to edit the encyclopaedia — that the enthusiasm of the amateur for user generated content, peer production, and Web 2.0 technology leads to an encyclopaedia of common knowledge, and not an encyclopaedia of expert knowledge; that the "Wisdom of the crowd" will distort what society considers to be the truth.[26]

In 2017, the Italian Catholic priest Antonio Spadaro tweeted: "Theology is not #Mathematics. 2 + 2 in #Theology can make 5. Because it has to do with #God and real #life of #people. ..."[27] In defence of the priest, Traditionalist Catholics stated that Spadaro's remark was referring to alleged contradictions among interpretations of the apostolic exhortation Amoris laetitia (2016)—for divorced-remarried Catholics returning to the Church—and the doctrines of Marriage in the Catholic Church. That a person can freely act in contradiction to Catholic doctrine if he or she felt that God allowed that action—despite the moral and theological contradictions inherent to the action. That Spadaro's "two plus two equal five" comments refer to the Church philosophy that human reason is insufficient for the full comprehension of God. That Spadaro was much like the cynical Rex Mottram character in the novel Brideshead Revisited (1945), by Evelyn Waugh, wherein Mottram, during his catechesis (becoming Catholic to marry a Catholic) is indifferent to ascertaining any aspect of Catholicism; Mottram attributes moral and theological contradictions to personal sinfulness.

Former mathematician Kareem Carr has said "when somebody says '2+2=5', I will always ask them for more details rather than dismissing them as an idiot because maybe they are talking about [male and female] chickens and turns out that is how chickens work!".[28]

See also

  • One Plus One Equals Three
  • 1=2


  1. Two plus two actually equals four, a number which is different from five.
  2. 2.0 2.1 Orwell, George (1949). Part Three, Chapter Two. http://www.george-orwell.org/1984/18.html. 
  3. 3.0 3.1 Allais, Alphonse (1895) (in fr). Deux et deux font cinq (2 + 2 = 5). Ollendorff. 
  4. 4.0 4.1 Шершеневич, Вадим (1920) (in ru). 2 × 2 = 5: листы имажиниста. 
  5. "Descartes' Meditations Home Page". Wright.edu. 27 July 2005. http://www.wright.edu/cola/descartes/meditation1.html. 
  6. 6.0 6.1 Wilson, F. P. (1970). The Oxford Dictionary of English Proverbs (3rd ed.). Oxford: Clarendon Press. p. 849. ISBN 0198691181. 
  7. "Moliere Don Juan Adapted by Timothy Mooney". Moliere-in-english.com. http://moliere-in-english.com/donjuan.html. 
  8. Chambers, Ephraim (1728). Cyclopaedia; or, an Universal Dictionary of Arts and Sciences . . .Volume the First. London: James and John Knapton et al.. p. 11. https://upload.wikimedia.org/wikipedia/commons/thumb/e/ea/Cyclopaedia%2C_Chambers_-_Volume_1.djvu/page56-2096px-Cyclopaedia%2C_Chambers_-_Volume_1.djvu.jpg. Retrieved 25 December 2016. 
  9. Byron, George Gordon (1974). Leslie A. Marchand. ed. Alas! the Love of Women: 1813–1814. Belknap Press. p. 159. ISBN 9780674089426. https://books.google.com/books?id=EnZ9c4KvQQEC&pg=PA159. 
  10. Bradley, Ian (2016). The Complete Annotated Gilbert and Sullivan. Oxford. p. 555. 
  11. Keith M. Baker; John W. Boyer; Julius Kirshner (15 May 1987). University of Chicago Readings in Western Civilization, Volume 7: The Old Regime and the French Revolution. University of Chicago Press. p. 154. ISBN 978-0-226-06950-0. https://books.google.com/books?id=z5MelCA-zzIC&pg=PA154. 
  12. Seraphita by Honoré de Balzac. http://www.gutenberg.org/ebooks/1432. 
  13. Long, Roderick T.. "Victor Hugo on the Limits of Democracy". http://www.lewrockwell.com/long/long12.html. 
  14. e.g. Novoe vremia newspaper ("New Times"), 31 October 1900.
  15. Bakunin, Mikhail Aleksandrovich (1974) (in en). Selected writings. Grove Press : distributed by Random House. ISBN 9780394178738. https://books.google.com/books?id=jXpuAAAAIAAJ. 
  16. Bakunin, Michail (1842). "The Reaction in Germany From the Notebooks of a Frenchman". The Anarchist Library. https://archive.org/details/al_Michail_Bakunin_The_Reaction_in_Germany_From_the_Notebooks_of_a_Frenchman_a4. 
  17. Meyers, Jeffrey (2010) (in en). Orwell: Life and Art. University of Illinois Press. p. 149. ISBN 9780252090226. https://books.google.com/books?id=eUQ1Z12trIEC&pg=PA149. 
  18. "Notes from the Underground: Part I: Chapter IX by Fyodor Dostoevsky". http://www.classicreader.com/book/414/10/. 
  19. Turgenev, Ivan Dream Tales and Poems, p. 102
  20. The Communist Manifesto and Other Revolutionary Writings. Dover Publications. 2003. p. 199. ISBN 0486424650. https://books.google.com/books?id=7bT1gfI3jjkC&pg=PA199. 
  21. Stalin, Joseph (June 1930). Political Report of the Central Committee to the Sixteenth Congress of the C.P.S.U.(B.). Pravda, No. 177. https://www.marxists.org/reference/archive/stalin/works/1930/aug/27.htm. Retrieved 10 October 2014. 
  22. Orwell, George (January 1939). "Review of Power: A New Social Analysis by Bertrand Russell". https://www.lehman.edu/faculty/rcarey/BRSQ/06may.orwell.htm. 
  23. Orwell, George. "Looking Back on the Spanish War". orwell.ru. http://orwell.ru/library/essays/Spanish_War/english/esw_1. 
  24. "Hermann Göring". Museum of Tolerance Multimedia Learning Center. http://motlc.wiesenthal.com/text/x18/xr1883.html. 
  25. Orwell, George Nineteen Eighty-Four (1949), ISBN:0-452-28423-6
  26. Keen, Andrew (2007). The Cult of the Amateur. Doubleday. pp. 39–40, 44. 
  27. Spadaro, Antonio [@antoniospadaro] (5 January 2017). "Theology is not #Mathematics. 2 + 2 in #Theology can make 5. Because it has to do with #God and real #life of #people..." (in en). https://twitter.com/antoniospadaro/status/817144723093733377. 
  28. Delbert, Caroline (2020-08-07). "Why Some People Think 2+2=5 ...and why they're right." (in en). https://www.popularmechanics.com/science/math/a33547137/why-some-people-think-2-plus-2-equals-5/. 

Further reading

  • Euler, Houston (1990), Reviewed by Andy Olson, "The history of 2 + 2 = 5", Mathematics Magazine 63 (5): 338–339, doi:10.2307/2690909 
  • Krueger, L. E.; Hallford, E. W. (1984), "Why 2 + 2 = 5 looks so wrong: On the odd-even rule in sum verification", Memory & Cognition 12 (2): 171–180, doi:10.3758/bf03198431, PMID 6727639 

External links