Surjection

Noun
Prefix: sur-

Pronunciation
/səːˈdʒɛkʃən/ listen

Meaning
A class of functions whose each element of codomain is mapped to by at least one element of the domain, i.e. the image and the codomain of the function are equal.

Example


Synonyms
Surjective function, onto mapping, onto

Similar words
Surjective adjective /səː'dʒɛktɪv/ listen

Etymology
The term introduced by Nicolas Bourbaki. The prefix sur- means over, above.

Source
OED

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