An enumeration is a complete, ordered listing of all the items in a collection. The term is commonly used in mathematics and computer science to refer to a listing of all of the elements of a set. The precise requirements for an enumeration for example, whether the set must be finite, or whether the list is allowed to Ver ms. In combinatorics, enumeration means counting, i.e., determining the exact number of elements of finite sets, usually grouped into infinite families, such as the family of sets each consisting of all permutations of Ver ms. Ordinal number Enumerative definition Sequence Ver ms. In set theory, the notion of enumeration has a broader sense, and does not require the set being enumerated to be finite.Listing Ver ms. In computability theory one often considers countable enumerations with the added requirement that the mapping fromIn this sense, a Ver ms. The dictionary definition of enumeration at Wiktionary Ver ms. Webthe act of naming things separately, one by one Graphs and enumeratio