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commutative law

(Encyclopedia)commutative law, in mathematics, law holding that for a given binary operation (combining two quantities) the order of the quantities is arbitrary; e.g., in addition, the numbers 2 and 5 can be combin...

Abdullah, Sheikh Muhammad

(Encyclopedia)Abdullah, Sheikh Muhammad shākh mo͞ohämˈmäd äbdo͝ol-läˈ [key], 1905–82, nationalist leader in Kashmir, known as the Lion of Kashmir. He became active in polit...

Cúcuta

(Encyclopedia)Cúcuta ko͞oˈko͞otä [key], city, capital of Norte de Santander dept., NE Colombia, near the ...

Cooper, Alfred Duff, 1st Viscount Norwich of Aldwick

(Encyclopedia)Cooper, Alfred Duff, 1st Viscount Norwich of Aldwick ko͞oˈpər, ko͝opˈər [key], 1890–1954, British statesman and diplomat. Elected to Parliament as a Conservative (Unionist) in 1924, he served ...

Colosio Murrieta, Luis Donaldo

(Encyclopedia)Colosio Murrieta, Luis Donaldo lo͞oēsˈ ᵺônälˈdō kôlôˈsyō mo͝oryāˈtä [key], 1948–94, Mexican politician and government official, b. Magdalena del Kino, Mex. He studied at the Univ. o...

Cobb, Henry Nichols

(Encyclopedia)Cobb, Henry Nichols, 1926–2020, American modernist architect, b. Boston, grad. Harvard Graduate School of Design (1949). At Harvard he met I. M. Pei, with whom he established a New York firm in 1955...

Ellicott City

(Encyclopedia)Ellicott City, city (2020 pop. 75,947), seat of Howard co., in Baltimore and Howard cos., central Md., on the Patapsco River; settled 1774 as Ellicott M...

Anzengruber, Ludwig

(Encyclopedia)Anzengruber, Ludwig lo͝otˈvĭkh änˈtsəngro͞oˌbər [key], 1839–89, Austrian writer. An actor and a clerk in the imperial police, Anzengruber had little success as a writer until the production...

Houghton, Michael

(Encyclopedia)Houghton, Michael, 1949–, Canadian biochemist, Ph.D. King's College, London, 1977. He joined G.D. Searle & Co. in 1977, then became (1982) a researcher at the Chiron Corp. In 2007 Houghton was a...

Hindu Kush

(Encyclopedia)Hindu Kush hĭnˈdo͞o ko͝osh [key], a high mountain system, extending c.500 mi (800 km) W from the Pamir Knot, N Pakistan, into NE Afghanistan; rising to 25,236 ft (7,692 m) in Tirich Mir, on the bo...