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surjection function

См. также в других словарях:

  • Function (mathematics) — f(x) redirects here. For the band, see f(x) (band). Graph of example function, In mathematics, a function associates one quantity, the a …   Wikipedia

  • function, logical — In logic and mathematics a function, also known as a map or mapping, is a relation that associates members of one class X with some unique member y of another class Y. The association is written as y = f(x ). The class X is called the domain of… …   Philosophy dictionary

  • surjection — noun /sɜː(r).dʒɛk.ʃən/ A function of many to one mapping relationship; more formally, f: nbsp;X nbsp; rarr; nbsp;Y is a surjection if and only if, for every y in the codomain Y, there is at least one x in the domain X with f(x) nbsp;= nbsp;y. See …   Wiktionary

  • surjection — n. surjective function, function that is an onto mapping (Mathematics) …   English contemporary dictionary

  • surjection — noun Etymology: probably from sur + jection (as in projection) Date: 1964 a mathematical function that is an onto mapping compare bijection, injection 3 …   New Collegiate Dictionary

  • surjection — /seuhr jek sheuhn/, n. Math. See onto function. [1960 65; SUR 1 + jection, as in INJECTION, PROJECTION, etc.] * * * …   Universalium

  • surjection — See function ( …   Philosophy dictionary

  • surjection — (ˌ)sərˈjekshən noun ( s) Etymology: French, from sur over, on, onto + jection (as in projection) more at sur : a mathematical function that is an onto mapping compare bijection …   Useful english dictionary

  • Surjective function — Onto redirects here. For other uses, see wikt:onto. A surjective function from domain X to codomain Y. The function is surjective because every point in the codomain is the value of f(x) for at least one point x in the domain. In mathematics, a… …   Wikipedia

  • Bijection, injection and surjection — In mathematics, injections, surjections and bijections are classes of functions distinguished by the manner in which arguments (input expressions from the domain) and images (output expressions from the codomain) are related or mapped to each… …   Wikipedia

  • Injective function — Injective redirects here. For injective modules, see Injective module. An injective function (is not a bijection) …   Wikipedia

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