In mathematics, a bijection, bijective function, or one-to-one correspondence is a function between two sets such that each element of the second set (the codomain) is the image of exactly one element of the first set (the domain). Given a function f : A → B {\displaystyle f:A\to B} , the image of an element a ∈ A {\displaystyle a\in A} is the element f ( a ) ∈ B {\displaystyle f(a)\in B} in the codomain.
In mathematics, a bijection, bijective function, or one-to-one correspondence is a function between two sets such that each element of the second set (the codomain) is the image of exactly one element of the first set (the domain). Given a function f : A → B {\displaystyle f:A\to B} , the image of an element a ∈ A {\displaystyle a\in A} is the element f ( a ) ∈ B {\displaystyle f(a)\in B} in the codomain.
Source: Wikipedia "Bijection" · CC BY-SA 4.0
Share this article: X · Bluesky