Instantiation or instance may refer to:

Philosophy

* A modern concept similar to ''participation'' in classical Platonism; see the Theory of Forms * The instantiation principle, the idea that in order for a property to exist, it must be had by some object or substance; the instance being a specific object rather than the idea of it * Universal instantiation * An

instance (predicate logic) In predicate logic, universal instantiation (UI; also called universal specification or universal elimination, and sometimes confused with '' dictum de omni'') is a valid rule of inference from a truth about each member of a class of individuals ...

, a statement produced by applying universal instantiation to a universal statement * Existential fallacy, also called existential instantiation * A

substitution instance Substitution is a fundamental concept in logic. A substitution is a syntactic transformation on formal expressions. To apply a substitution to an expression means to consistently replace its variable, or placeholder, symbols by other expressions. T ...

, a formula of mathematical logic that can be produced by substituting certain strings of symbols for others in formula, also can be used as the mathematical order to represent the data in an algorithm

Computing

* Instance (computer science), referring to any running process, or specifically to an object as an instance of a class * Table instance (or database instance), a concept in database design; see

Row (database) In the context of a relational database, a row—also called a tuple—represents a single, implicitly structured data item in a table. In simple terms, a database table can be thought of as consisting of ''rows'' and columns.object Object may refer to: General meanings * Object (philosophy), a thing, being, or concept ** Object (abstract), an object which does not exist at any particular time or place ** Physical object, an identifiable collection of matter * Goal, an ai ...

(a location in memory having a value and possibly referenced by an identifier) * Instance can refer to a single

virtual machine In computing, a virtual machine (VM) is the virtualization/emulation of a computer system. Virtual machines are based on computer architectures and provide functionality of a physical computer. Their implementations may involve specialized hardw ...

in a virtualized or cloud computing environment that provides operating-system-level virtualization

Other uses

* Instance dungeon, a feature of many online videogames * Instantiation of a class or object within the organization of a

body of knowledge A body of knowledge (BOK or BoK) is the complete set of concepts, terms and activities that make up a professional domain, as defined by the relevant learned society or professional association.Oliver, G.R. (2012). ''Foundations of the Assumed Bus ...

* Cline of instantiation, a concept in systemic functional linguistics. {{Disambiguation