The New Encyclopędia Britannica: L-ZEncyclopędia Britannica, 1992 - 32 pages |
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Page 270
... operations . The inclusion relation may be defined in terms of either lattice operation , because x < y is ... operations portant is the following isotonicity principle , valid in any lattice . This principle is : If for any elements u ...
... operations . The inclusion relation may be defined in terms of either lattice operation , because x < y is ... operations portant is the following isotonicity principle , valid in any lattice . This principle is : If for any elements u ...
Page 304
... operation , because it depends on two arguments : x and y . In the plane , the operation of taking the centroid of a triangle ABC is a ternary operation , depending on three arguments , A , B , C. Most Operations operations depend on a ...
... operation , because it depends on two arguments : x and y . In the plane , the operation of taking the centroid of a triangle ABC is a ternary operation , depending on three arguments , A , B , C. Most Operations operations depend on a ...
Page 307
... operations , which pick out the first argument , or the second , or any other of the n arguments . Any collection of operations on a set , closed under the composition described above and containing all the iden- tity operations ( one ...
... operations , which pick out the first argument , or the second , or any other of the n arguments . Any collection of operations on a set , closed under the composition described above and containing all the iden- tity operations ( one ...
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20th century Abelian group addition aesthetic Afghanistan agriculture Albania alcohol algae algebra animals basin called central centre ceremonial climate coast common complex numbers Congo contains Cōte d'Ivoire countries crops cultivation culture dance defined desert developed drinking drug East eastern economic Egypt elements equations European example farm feet field Figure finite fish forest functor Igbo important Indians integers irrigation isomorphism Kabul Kenya Lake Lake Chad Lake Victoria land language lattice Lie algebra linear major mapping miles modern mountains Niger Nigeria Nile northern operations patterns percent period Plains plants Plateau polynomial population rainfall real numbers region ring ritual River Sahara savanna social soil South Africa southern Africa species subgroup Sudan Tanzania theory tion traditional tribes tropical United valley vector space vegetation village West Africa western x₁ Yoruba Zaire Zambia Zimbabwe