onto

  1. Preposition.  upon, on top of.
  2. Preposition.  (informal) aware of.
  3. Preposition.  (mathematics) being an onto function with a codomain of (see below).
  4. Adjective.  (mathematics, of a function) assuming each of the values in its codomain; having its range equal to its codomain.

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This entry was last updated on RefTopia from its source on 3/20/2012.