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- Lambda_cube abstract "In mathematical logic and type theory, the λ-cube is a framework for exploring the axes of refinement in Coquand's calculus of constructions, starting from the simply typed lambda calculus (written as in the cube diagram to the right) as the vertex of a cube placed at the origin, and the calculus of constructions (higher order dependently-typed polymorphic lambda calculus; written as λPω in the diagram) as its diametrically opposite vertex. Each axis of the cube represents a new form of abstraction: Terms depending on types, or polymorphism. System F, aka second order lambda calculus (written as λ2 in the diagram), is obtained by imposing only this property. Types depending on types, or type operators. Simply typed lambda-calculus with type operators, λω (the diagram underlines the ω), is obtained by imposing only this property. Combined with System F it yields System Fω (written as λω without the underline in the diagram). Types depending on terms, or dependent types. Imposing only this property yields λΠ (written as λP in the diagram), a type system closely related to LF. All eight calculi include the most basic form of abstraction, terms depending on terms, ordinary functions as in the simply-typed lambda calculus. The richest calculus in the cube, with all three abstractions, is the calculus of constructions. All eight calculi are strongly normalizing.Subtyping however is not represented in the cube, even though systems like , known as higher-order bounded quantification, which combines subtyping and polymorphism are of practical interest, and can be further generalized to bounded type operators. Further extensions to allow the definition of purely functional objects; these systems were generally developed after the lambda cube paper was published.The idea of the cube is due to the mathematician Henk Barendregt (1991). The framework of pure type systems generalizes the lambda cube in the sense that all corners of the cube, as well as many other systems can be represented as instances of this general framework. This framework predates lambda cube a couple of years. In his 1991 paper, Barendregt also defines the corners of the cube in this framework.".
- Lambda_cube thumbnail Lambda_cube.png?width=300.
- Lambda_cube wikiPageExternalLink peytonjones97henk.html.
- Lambda_cube wikiPageExternalLink 13256.pdf.
- Lambda_cube wikiPageExternalLink tlc001.htm.
- Lambda_cube wikiPageID "901593".
- Lambda_cube wikiPageRevisionID "575664972".
- Lambda_cube hasPhotoCollection Lambda_cube.
- Lambda_cube subject Category:Lambda_calculus.
- Lambda_cube subject Category:Type_theory.
- Lambda_cube comment "In mathematical logic and type theory, the λ-cube is a framework for exploring the axes of refinement in Coquand's calculus of constructions, starting from the simply typed lambda calculus (written as in the cube diagram to the right) as the vertex of a cube placed at the origin, and the calculus of constructions (higher order dependently-typed polymorphic lambda calculus; written as λPω in the diagram) as its diametrically opposite vertex.".
- Lambda_cube label "Lambda cube".
- Lambda_cube label "Lambda cube".
- Lambda_cube label "Лямбда-куб".
- Lambda_cube label "ラムダ・キューブ".
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- Lambda_cube sameAs ラムダ・キューブ.
- Lambda_cube sameAs m.03n7rm.
- Lambda_cube sameAs Q2036661.
- Lambda_cube sameAs Q2036661.
- Lambda_cube wasDerivedFrom Lambda_cube?oldid=575664972.
- Lambda_cube depiction Lambda_cube.png.
- Lambda_cube isPrimaryTopicOf Lambda_cube.
