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・ Boundary-value analysis
・ Boundary-Waneta Border Crossing
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Bounded quantification
・ Bounded quantifier
・ Bounded rationality
・ Bounded Retransmission Protocol
・ Bounded set
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・ Bounded Type
・ Bounded type (mathematics)
・ Bounded variation
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・ Bounden (video game)
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Bounded quantification : ウィキペディア英語版
Bounded quantification

In type theory, bounded quantification (also bounded polymorphism or constrained genericity) refers to universal or existential quantifiers which are restricted ("bounded") to range only over the subtypes of a particular type. Bounded quantification is an interaction of parametric polymorphism with subtyping. Bounded quantification has traditionally been studied in the functional setting of System F<:, but is available in modern object-oriented languages supporting parametric polymorphism (generics) such as Java, C# and Scala.
== Example ==
In the following Java sample the type parameter T is bounded to range only over I and its subclasses:

class I
class A


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