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Domain (Ring theory)

From AoPSWiki

A ring, , is an domain if:

  • (where and are the additive and multiplicative identities, respectively)
  • and it contains no zero divisors (i.e. there are no nonzero such that ).

If is also commutative, than it is an integral domain.

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Check out Art of Problem Solving's Introduction to Algebra by Richard Rusczyk.
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