valid class
21Mathematics of Sudoku — The class of Sudoku puzzles consists of a partially completed row column grid of cells partitioned into N regions each of size N cells, to be filled in using a prescribed set of N distinct symbols (typically the numbers {1, ..., N}), so that each …
22logic, history of — Introduction the history of the discipline from its origins among the ancient Greeks to the present time. Origins of logic in the West Precursors of ancient logic There was a medieval tradition according to which the Greek philosopher …
23logic — logicless, adj. /loj ik/, n. 1. the science that investigates the principles governing correct or reliable inference. 2. a particular method of reasoning or argumentation: We were unable to follow his logic. 3. the system or principles of… …
24Pilot certification in the United States — Front side of an airman certificate issued by the FAA …
25POLITICAL LIFE AND PARTIES — Introduction It was largely due to the existence of the pre state political parties, which had conducted intensive political activities for almost half a century within the framework of the yishuv , under the British Mandate for Palestine, that… …
26metalogic — /met euh loj ik/, n. the logical analysis of the fundamental concepts of logic. [1835 45; META + LOGIC] * * * Study of the syntax and the semantics of formal languages and formal systems. It is related to, but does not include, the formal… …
27Passport — For other uses, see Passport (disambiguation). Different types of passports issued in Latvia …
28Компоновщик (шаблон проектирования) — Шаблон проектирования Компоновщик Composite Тип: структурный Описан в Design Patterns Да Компоновщик (англ. Composite pattern) шаблон проектирования, относится к структурным паттернам, объединяет объек …
29Driver's license in the United States — In the United States, nearly all driver s licenses are issued by individual states (including Washington, D.C. and territories), rather than the federal government. Drivers are normally required to obtain a license from their state of residence,… …
30First-order logic — is a formal logical system used in mathematics, philosophy, linguistics, and computer science. It goes by many names, including: first order predicate calculus, the lower predicate calculus, quantification theory, and predicate logic (a less… …
