countable domain
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Countable set — Countable redirects here. For the linguistic concept, see Count noun. Not to be confused with (recursively) enumerable sets. In mathematics, a countable set is a set with the same cardinality (number of elements) as some subset of the set of… … Wikipedia
Domain theory — is a branch of mathematics that studies special kinds of partially ordered sets (posets) commonly called domains. Consequently, domain theory can be considered as a branch of order theory. The field has major applications in computer science,… … Wikipedia
domain — do‧main [dəˈmeɪn, dəʊ ǁ də , doʊ ] noun [countable] 1. an area of activity, interest, or knowledge: • the scientific domain. 2. somebody s/something s domain COMMERCE an activity controlled by one person, organization, industry etc: • Marketing… … Financial and business terms
domain name — doˈmain ˌname noun [countable] COMPUTING the address of a computer network connected to the Internet. A domain name is followed by an abbreviation which could show its type, for example .com for a company, or its country of origin, for example… … Financial and business terms
Domain of a function — Venn diagram showing f, a function from domain X to codomain Y. The smaller oval inside Y is the image of f, sometimes called the range of f. In mathematics, the domain of definition or simply the domain of a function is the set of input or… … Wikipedia
domain */*/ — UK [dəʊˈmeɪn] / US [doʊˈmeɪn] noun [countable] Word forms domain : singular domain plural domains 1) a) a particular area of activity or life This is a subject that has now moved into the political domain. b) an area of activity considered as… … English dictionary
domain name — UK / US noun [countable] Word forms domain name : singular domain name plural domain names computing an address on the Internet … English dictionary
Axiom of countable choice — The axiom of countable choice or axiom of denumerable choice, denoted ACω, is an axiom of set theory, similar to the axiom of choice. It states that any countable collection of non empty sets must have a choice function. Spelled out, this means… … Wikipedia
Gårding domain — In mathematics, a Gårding domain is a concept in the representation theory of topological groups. The concept is named after the mathematician Lars Gårding.Let G be a topological group and let U be a strongly continuous unitary representation of… … Wikipedia
Dedekind domain — In abstract algebra, a Dedekind domain or Dedekind ring, named after Richard Dedekind, is an integral domain in which every nonzero proper ideal factors into a product of prime ideals. It can be shown that such a factorization is then necessarily … Wikipedia
top-level domain — ˌtop level doˈmain noun [countable] abbreviation TLD COMPUTING a few letters at the end of an Internet domain name, that are part of an organization s Internet address: • All major U.S. corporations adopted .com as their top level domain … Financial and business terms
