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Onto

/ˈɒn.tuː/

(of a function) Assuming each of the values in its codomain; having its range equal to its codomain.

📖 Definitions of "Onto "

adjective
  1. 1

    (of a function) Assuming each of the values in its codomain; having its range equal to its codomain.

    "Considered as a function on the real numbers, the exponential function is not onto."

preposition
  1. 1

    Upon; on top of.

    "My cat just jumped onto the keyboard."

  2. 2

    Aware of.

    "The thought-police were onto my plans of world domination."

  3. 3

    Being an onto function with a codomain of (see below).

    "The exponential function maps the set of real numbers onto the set of positive real numbers."

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