[home] [lexicon] [problems] [tests] [courses] [auxiliaries] [notes] [staff] | ||

Mathematics-Online course: Basic Mathematics - Mappings | ||

## Map |

[previous page] [next page] | [table of contents][page overview] |

A map from a set to a set assigns to each a unique :

To define which elements are associated with one another, the notation

The figure shows that not every element in necessarily is an element of the image of ; also, one element of can be the image of several elements of (in other words: an image can have several inverse images, such as and in the above illustration).

However, each element of must have a unique image, that is each has to be the starting point of an arrow to an element of .

(Authors: Höllig/Hörner/Kimmerle/Abele)

[previous page] [next page] | [table of contents][page overview] |

automatically generated 10/31/2008 |