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Noun
1. integral domain; ring with no divisors of zeroMathematics
Wikipedia definition
2. Integral domainIn abstract algebra, an integral domain is a commutative ring that has no zero divisors, and which is not the trivial ring {0}. It is usually assumed that commutative rings and integral domains have a multiplicative identity even though this is not always included in the definition of a ring. Integral domains are generalizations of the integers and provide a natural setting for studying divisibility. An integral domain is a commutative domain with identity.
Read “Integral domain” on English Wikipedia
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