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United Nations Conference on Environment and Development

(Encyclopedia)United Nations Conference on Environment and Development (UNCED) or Earth Summit, an 11-day meeting held in June, 1992, in Rio de Janeiro, Brazil, to discuss the global conflict between economic devel...

Sylvester II

(Encyclopedia)Sylvester II, c.945–1003, pope (999–1003), a Frenchman (b. Auvergne) named Gerbert; successor of Gregory V. In his youth he studied at Muslim schools in Spain and became learned in mathematics and...

Cayley, Arthur

(Encyclopedia)Cayley, Arthur kāˈlē [key], 1821–95, English mathematician. He was admitted to the bar in 1849. In 1863 he was appointed first Sadlerian professor of mathematics at Cambridge. His researches, whi...

Ewell, Benjamin Stoddert

(Encyclopedia)Ewell, Benjamin Stoddert yo͞oˈəl [key], 1810–94, American educator, b. Georgetown, D.C., grad. West Point, 1832; brother of Gen. R. S. Ewell. He taught mathematics at West Point, Hampden-Sidney C...

Brock University

(Encyclopedia)Brock University, at St. Catharines, Ont., Canada; coeducational; founded 1964. It has faculties of humanities, social science, science and mathematics, education, business, and physical education and...

Bourbaki, Nicolas

(Encyclopedia)Bourbaki, Nicolas, pseudonym under which a group of 20th cent. mathematicians has written a series of treatises on pure mathematics. The mathematicians have all been associated with the Ecole Normale ...

theorem

(Encyclopedia)theorem, in mathematics and logic, statement in words or symbols that can be established by means of deductive logic; it differs from an axiom in that a proof is required for its acceptance. A lemma i...

Bishop's University

(Encyclopedia)Bishop's University, provincially supported, English-language university at Lennoxville, Que., Canada; founded 1843 by the Anglican bishop of Quebec as a liberal arts college. In 1853 it gained univer...

Darley, George

(Encyclopedia)Darley, George, 1795–1846, English author and mathematician, b. Ireland. Included among his works are the pastoral drama Sylvia (1827), the poem Nepenthe (1835), a precursor of 20th-century symbolis...

Mach, Ernst

(Encyclopedia)Mach, Ernst ĕrnst mäkh [key], 1838–1916, Austrian physicist and philosopher, b. Moravia. He taught (1864–67) mathematics at Graz and later, until his retirement in 1901, was professor of physics...