Surjection Definition

sər-jĕkshən
noun
A function that is onto.
American Heritage

(mathematics) A function of "many-to-one" mapping relationship; more formally, f: XY 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.

Wiktionary

Other Word Forms of Surjection

Noun

Singular:
surjection
Plural:
surjections

Origin of Surjection

  • From French surjection, introduced by Nicolas Bourbaki in his treatise Éléments de mathématique.

    From Wiktionary

  • sur– (pro)jection

    From American Heritage Dictionary of the English Language, 5th Edition

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