surjection

American

[ser-jek-shuhn] / sərˈdʒɛk ʃən /

noun

Mathematics.

onto function.

surjection British

/ sɜːˈdʒɛkʃən /

noun

a mathematical function or mapping for which every element of the image space is a value for some members of the domain See also injection bijection

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

surjection Scientific

/ sər-jĕk′shən /

A function such that each member of its range is mapped onto by a member of the domain.
Compare bijection injection

Other Word Forms

Derived Forms

surjective

adjective

Etymology

Origin of surjection

1960–65; sur- ¹ + -jection, as in injection, projection, etc.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023