surjection

Definition from Wiktionary, a free dictionary

Contents 1 English 1.1 Noun 1.1.1 Related terms 1.1.2 Translations 2 French 2.1 Etymology 2.2 Noun

[edit] English

Wikipedia

[edit] Noun

surjection

1. (mathematics) A function of "many-to-one" mapping relationship; more formally, f: X → Y is a surjection if and only if, for every y in the codomain Y, there is at least one x in the domain X with f(x) = y.

[edit] Related terms

• injection
• bijection

[edit] Translations

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[edit] French

[edit] Etymology

sur- + jection

[edit] Noun

surjection f. (plural surjections)

1. surjection