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Nominal type system

In computer science, a type system is nominal (also called nominative or name-based) if compatibility and equivalence of data types is determined by explicit declarations and/or the name of the types. Nominal systems are used to determine whether types are equivalent, as well as whether a type is a subtype of another. Nominal type systems contrast with…

Science, Nominal subtyping & Nominal typing

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Nominal subtyping

EiffelC++C#JavaKotlin
10 related topics

Nominal typing

TypedefSyntacticSemanticallyHaskellIsomorphic
5 related topics

Overview

Computer scienceType systemData typesStructural systems
4 related topics

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Nominal typing

Nominal subtyping

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Nominal type system

Nodes28
Edges27
Triples0
Avg. degree1.93
Density0.071429
Components1

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Important terminology

type nominal types typing structural declarations systems subtyping also languages declared explicit example compatible allows alias existing subtypes system nominative

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