Mnemonic: sur means over. So we are going over the codomain, and covering it entirely.

Ancestors (7)

  1. Bijection
  2. Domain, codomain and image
  3. Function (mathematics)
  4. Formalization of mathematics
  5. Area of mathematics
  6. Mathematics
  7. Home

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Surjective function by Wikipedia Bot 0
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A surjective function, also known as a "onto" function, is a type of function in mathematics where every element in the codomain (the set of possible outputs) is mapped to by at least one element from the domain (the set of possible inputs).
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