surjections
surjections is the plural of surjection.
Meaning of surjection
Noun
surjection (plural surjections)
- 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.
- In some special cases, however, the number of surjections A#92;rightarrowB can be identified.1992, Rowan Garnier, John Taylor, Discrete Mathematics for New Technology, Institute of Physics Publishing, page 220
- Synonyms:
- surjective function, onto function
Questions about surjections
- What is surjections the plural of?
- Surjections is the plural of surjection.
Words near surjections in the dictionary
Source and license
Adapted from Wiktionary: surjections (page history and authors); surjection (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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