by Ciro Santilli (@cirosantilli, 37)
Mnemonic: in means into. So we are going into a codomain that is large enough so that we can have a different image for every input.
Mnemonic: sur means over. So we are going over the codomain, and covering it entirely.

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  1. Domain, codomain and image
  2. Function (mathematics)
  3. Formalization of mathematics
  4. Area of mathematics
  5. Mathematics
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Bijection by Wikipedia Bot 0 1970-01-01
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