surjective
التعريفات والمعاني
== English ==
=== Pronunciation ===
(Received Pronunciation) IPA(key): /səˈd͡ʒɛktɪv/
(General American) IPA(key): /sɚˈd͡ʒɛktɪv/
Rhymes: -ɛktɪv
=== Adjective ===
surjective (not comparable)
(mathematics) Of, relating to, or being a surjection.
1974, Thomas W. Hungerford, Algebra, Springer, page 5,
A function
f
{\displaystyle \textstyle f}
is surjective (or onto) provided
f
(
A
)
=
B
{\displaystyle \textstyle f(A)=B}
; in other words,
for each
b
∈
B
,
b
=
f
(
a
)
{\displaystyle \textstyle b\in B,b=f(a)}
for some
a
∈
A
{\displaystyle \textstyle a\in A}
.
A function
f
{\displaystyle \textstyle f}
is said to be bijective (or a bijection or a one-to-one correspondence) if it is both injective and surjective.
Synonym: onto
==== Derived terms ====
==== Related terms ====
==== Translations ====
==== See also ====
bijective
injective
== French ==
=== Pronunciation ===
IPA(key): /syʁ.ʒɛk.tiv/
Homophone: surjectives
=== Adjective ===
surjective
feminine singular of surjectif