Difference between revisions of "Injection"

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An '''injection''', or "one-to-one function," is a [[function]] takes distinct values on distinct inputs.  Equivalently, an injection is a function for which every value in the [[range]] is the image of exactly one value in the [[domain]].
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An '''injection''', or "one-to-one function," is a [[function]] that takes distinct values on distinct inputs.  Equivalently, an injection is a function for which every value in the [[range]] is the image of exactly one value in the [[domain]].
  
 
==See also==  
 
==See also==  
 
* [[Bijection]]
 
* [[Bijection]]
 
* [[Surjection]]
 
* [[Surjection]]

Revision as of 12:55, 3 July 2006

An injection, or "one-to-one function," is a function that takes distinct values on distinct inputs. Equivalently, an injection is a function for which every value in the range is the image of exactly one value in the domain.

See also

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