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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...

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)...

Dutch and Flemish literature

(Encyclopedia)Dutch and Flemish literature, literary works written in the standard language of the Low Countries since the Middle Ages. It is conventional to use the term Dutch when referring to the language spoken...

Hoover, Herbert Clark

(Encyclopedia)Hoover, Herbert Clark, 1874–1964, 31st President of the United States (1929–33), b. West Branch, Iowa. Except for major speeches before the Republican conventions and a 1938 European tour, Hoove...

Metropolitan Opera Company

(Encyclopedia)Metropolitan Opera Company, term used in referring collectively to the organizations that have produced opera at the Metropolitan Opera House, New York City. The original house, at West 39th Street an...