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surjection

American  
[ser-jek-shuhn] / sərˈdʒɛk ʃən /

noun

Mathematics.

  1. onto function.

surjection British  
/ sɜːˈdʒɛkʃən /

noun

  1. 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 /

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

  2. Compare bijection injection

Other Word 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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.