Empty category principle — In linguistics, the empty category principle (ECP) was proposed in Noam Chomsky s syntactic framework of government and binding theory. The ECP is supposed to be a universal syntactic constraint that requires traces to be properly governed.Proper … Wikipedia
Empty product — In mathematics, an empty product, or nullary product, is the result of multiplying no factors. It is equal to the multiplicative identity 1, given that it exists for the multiplication operation in question, just as the empty sum the result of… … Wikipedia
Category management — is a retailing concept in which the total range of products sold by a retailer is broken down into discrete groups of similar or related products; these groups are known as product categories. Examples of grocery categories may be : tinned fish,… … Wikipedia
Empty set — ∅ redirects here. For similar looking symbols, see Ø (disambiguation). The empty set is the set containing no elements. In mathematics, and more specifically set theory, the empty set is the unique set having no elements; its size or cardinality… … Wikipedia
Empty function — In mathematics, an empty function is a function whose domain is the empty set. For each set A , there is exactly one such empty function :f A: varnothing ightarrow A.The graph of an empty function is a subset of the Cartesian product empty;… … Wikipedia
Category theory — In mathematics, category theory deals in an abstract way with mathematical structures and relationships between them: it abstracts from sets and functions to objects and morphisms . Categories now appear in most branches of mathematics and in… … Wikipedia
Category of sets — In mathematics, the category of sets, denoted as Set, is the category whose objects are all sets and whose morphisms are all functions. It is the most basic and the most commonly used category in mathematics.Properties of the category of setsThe… … Wikipedia
Empty Eyes — Infobox Television episode| Title= Empty Eyes Series= Season = 7 Episode = 18 Guests= Ruby Dee Airdate = March 29, 2007 Production = Writer = Allen MacDonald Director = Michael Slovis Prev = Fallen Idols Next = Big ShotsEmpty Eyes is the… … Wikipedia
Category of rings — In mathematics, the category of rings, denoted by Ring, is the category whose objects are rings (with identity) and whose morphisms are ring homomorphisms (preserving the identity). Like many categories in mathematics, the category of rings is… … Wikipedia
Empty (magazine) — Infobox Magazine title = Empty magazine image size = 200px image caption = Issue 9 of Empty magazine publisher = Design is Kinky paid circulation = unpaid circulation = total circulation = 12,000 circulation year = language = English category =… … Wikipedia