surjection

Significat (Anglès)

A function for which every element of the codomain is mapped to by some element of the domain; (formally) Any function f:X→Y for which for every y∈Y, there is at least one x∈X such that f(x)=y.

Conceptes

superjecció

Sinònims

onto function

onto

onto mapping

epimorphism

Traduccions

surjection

Surjektion

application surjective

sobrejeção

suryección

sobreyección

sobrejetora

surjectie

función sobreyectiva

suriezione

Pronunciat com a (IPA)

/sɜː(ɹ)ˈd͡ʒɛk.ʃən/

Etimologia (Anglès)

From French surjection, introduced by Nicolas Bourbaki in their treatise Éléments de mathématique.
Ultimately borrowed from Latin superiectiō (“a throwing over or on; (fig.) an exaggeration, a hyperbole”).