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Definition 2024


surjection

surjection

English

A surjection.

Noun

surjection (plural surjections)

  1. (set theory) 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.

Related terms

Translations


French

Etymology

sur- + jection

Noun

surjection f (plural surjections)

  1. (set theory) surjection