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bijection
[ bahy-jek-shuhn ]
noun
, Mathematics.
- a map or function that is one-to-one and onto.
bijection
/ baɪˈdʒɛkʃən /
noun
- a mathematical function or mapping that is both an injection and a surjection and therefore has an inverse See also injection surjection
bijection
/ bī-jĕk′shən /
- A function that is both an injection and a surjection. In a bijection, each member of the range corresponds to an element of the domain that is mapped onto it, and there is a one-to-one correspondence between the members of the domain and the range. All linear functions, such as y = x + 3, are bijections.
- Compare injection
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Word History and Origins
Origin of bijection1
1965–70; bi- 1 + -jection, as in projection
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