(Q87913369)

English

Kleene plus

unary operation on sets of strings, used in regular expressions for "one or more repetitions"

positive closure
Kleene plus operator
Kleene positive closure
one or more
1 or more

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Statements

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V^{+}=\bigcup _{i\in \mathbb {Z} _{+}}V^{i}{\text{; where }}V^{0}=\epsilon {\text{ and }}V^{i}=V^{i-1}\mathbin {^{\frown }} V

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V^{+}=V^{*}\mathbin {^{\frown }} V

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in defining formula

^{+}

symbol represents

Kleene plus

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\mathbb {Z} _{+}

symbol represents

set of positive integers

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\epsilon

symbol represents

empty string

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\mathbin {^{\frown }}

symbol represents

concatenation of sets of strings

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^{*}

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https://en.wikipedia.org/wiki/Kleene_star#Kleene_plus

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applies to part, aspect, or form

mathematical notation

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plus sign

applies to part, aspect, or form

programming language

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maintained by WikiProject

WikiProject Mathematics

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different from

Kleene star

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Sitelinks

Wikipedia(1 entry)

enwiki Kleene plus

(Q87913369)

Kleene plus

Statements

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