Rule

From Encyclopedia Jr, free information reference for Kids

A rule is:

• In logic and mathematics:
  • Rule of inference, a scheme for constructing valid inferences.
  • Axiom, a statement which is either (1) assumed for the sake of a particular discussion, (2) commonly accepted, (3) definitive of a particular subject matter, (4) self-evident, or (5) otherwise taken for granted.
  • Theorem, a statement that is proved from axioms.

• In generative grammar and computer science, a rewrite rule.

• Standardization, a formal and widely-accepted statement, fact, definition, or qualification
• Operation, a determinate rule (method) for performing a mathematical operation and obtaining a certain result (Mathematics, Logic)
  • Unary operation
  • Binary operation
• Moral, an atomic element of a moral code for guiding choices in human behavior
• Heuristic, a quantized "rule" which shows a tendency or probability for successful function
• Ruleset, a group of rules in an ordered programme, for the purpose of governing a system (artificial intelligence, game mechanics)
• Procedural law, a ruleset governing the application of laws to cases
  • A law, which may informally be called a "rule"
  • A court ruling, a decision by a court
• Norm (sociology), an informal but widely accepted rule, concept, truth, definition, or qualification (social norms, legal norms, coding norms)
• Norm (philosophy), a kind of sentence or a reason to act, feel or believe.
• "Rulership" is the concept of governance by a government:
  • Military rule, governance by a military body
  • Monastic rule, a collection of precepts that guides the life of monks or nuns in a religious order where the superior holds the place of Christ

[edit] Other uses

• Ruler, a measurement tool for small lengths
• Rule of thumb, an idiom for an estimation procedure
• In ethics, the Golden Rule is a principle of reciprocity common throughout all or most religious or otherwise cultural systems: see ethic of reciprocity
• Golden rule (law), a rule for the construction of statutes in British law
• Rules of Acquisition, a set of guidelines intended to ensure the profitability of businesses owned by the ultra-capitalist Ferengi in the fictional Star Trek universe
• The Rules, a bestselling self-help book
• RULE Project (Run Up-to-date Linux Everywhere) is a project that aims to use up-to-date Linux software on old PCs
• Rule engine, a software system that helps managing business rules
• Ja Rule, a hip hop artist
  • R.U.L.E., a 2005 greatest hits album by rapper Ja Rule
• The Rule, an American, pop/R&B band.
• Rule, in Graphic Arts, a horizontal line across a page.

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