# Operation (mathematics)/Related Articles

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*See also changes related to Operation (mathematics), or pages that link to Operation (mathematics) or to this page or whose text contains "Operation (mathematics)".*

## Parent topics

## Subtopics

- Binary operation [r]: A function of two elements within a set, which assigns another value from among the elements of the set.
^{[e]}

- Cartesian product [r]: The set of ordered pairs whose elements come from two given sets.
^{[e]} - Addition [r]: A binary mathematical operation of summing numbers or quantities together.
^{[e]} - Open map [r]: Function between two topological spaces which sends each open set of one to an open set of the other.
^{[e]} - Reverse mapping [r]: In the Domain Name Service, that function which takes an Internet Protocol version 4 (IPv4) or Internet Protocol version 6
**address**and returns the corresponding**name**^{[e]}