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51Official Secrets Act 1911 — The Official Secrets Act 1911[1] Parliament of the United Kingdom Long title An Act to re enact the Official Secrets Act 1889 with Amendments …
52Time — This article is about the measurement. For the magazine, see Time (magazine). For other uses, see Time (disambiguation). The flow of sand in an hourglass can be used to keep track of elapsed time. It also concretely represents the present as… …
53Second-order logic — In logic and mathematics second order logic is an extension of first order logic, which itself is an extension of propositional logic.[1] Second order logic is in turn extended by higher order logic and type theory. First order logic uses only… …
54Bertrand Russell — Infobox Philosopher region = Western Philosophy era = 20th century philosophy color = #B0C4DE image caption = Russell in 1907 image size = 150px name = Bertrand Arthur William Russell, 3rd Earl Russell birth = birth date|df=yes|1872|5|18 Trellech …
55Historical revisionism (negationism) — For the critical re examination of historical facts, see Historical revisionism. Historical revisionism is either the legitimate scholastic re examination of existing knowledge about a historical event, or the illegitimate distortion of the… …
56Timeline of events in the Cold War — Part of a series on the History of the Cold War Origins of the Cold War World War II …
57Nineteen Eighty-Four — This article is about the Orwell novel. For other uses, see 1984 (disambiguation). Nineteen Eighty Four   …
58Dates of 2005 — ▪ 2006 January This is a unique case of a people under occupation being asked to hold free and fair elections when they themselves are not free.… It s an important internal test, and I think it s a turning point. Palestinian legislator Hanan… …
59Logicism — is one of the schools of thought in the philosophy of mathematics, putting forth the theory that mathematics is an extension of logic and therefore some or all mathematics is reducible to logic.[1] Bertrand Russell and Alfred North Whitehead… …
60November 2011 — is the eleventh month of the current year. It began on a Tuesday and will end after 30 days. International holidays (See Holidays and observances, on sidebar at right, below) Portal:Current events …
