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logic
(Encyclopedia)logic, the systematic study of valid inference. A distinction is drawn between logical validity and truth. Validity merely refers to formal properties of the process of inference. Thus, a conclusion w...Dreyfus Affair
(Encyclopedia)Dreyfus Affair drāˈfəs, drī– [key], the controversy that occurred with the treason conviction (1894) of Capt. Alfred Dreyfus (1859–1935), a French artillery officer and graduate of the French ...ethics
(Encyclopedia)ethics, in philosophy, the study and evaluation of human conduct in the light of moral principles. Moral principles may be viewed either as the standard of conduct that individuals have constructed fo...anti-Semitism
(Encyclopedia)anti-Semitism ănˌtē-sĕmˈĭtĭzˌəm, ănˌtī– [key], form of prejudice against Jews, ranging from antipathy to violent hatred. Before the 19th cent., anti-Semitism was largely religious and wa...Mozart, Wolfgang Amadeus
(Encyclopedia)Mozart, Wolfgang Amadeus mōtˈsärt, Ger. vôlfˈgäng ämädāˈo͝os mōˈtsärt [key], 1756–91, Austrian composer, b. Salzburg. Mozart represents one of the great peaks in the history of music. ...Malta
(Encyclopedia) CE5 Malta môlˈtə [key], officially Republic of Malta, republic (2015 est. pop. 428,000), 122 sq mi (316 sq km), in the Mediterranean Sea S of Sicily. It comprises the islands of Malta (95 sq mi/...tunnel
(Encyclopedia)tunnel, underground passage usually made without removing the overlying rock or soil. Although tunnels are approximately horizontal, they must be built with sufficient gradient for proper drainage. Tu...Vanuatu
(Encyclopedia)Vanuatu vänˌwäto͞oˈ [key], officially Republic of Vanuatu, independent republic (2015 est. pop. 265,000), c.5,700 sq mi (14,760 sq km), South Pacific, E of Australia. Vanuatu is a 450-mi (724-km)...plate tectonics
(Encyclopedia) CE5 Plate tectonics: Map of the world showing major plates and plate boundaries CE5 Plate tectonics: Schematic model of the oceanic crust, showing the three types of plate boundaries plate tect...Tammany
(Encyclopedia)Tammany tămˈənē [key] or Tammany Hall, popular name for the Democratic political machine in Manhattan. Tammany suffered a telling defeat in the election of 1932 and did not regain its former s...Browse by Subject
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