natural numbers

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English[edit]

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Noun[edit]

natural numbers (normally plural, singular natural number)

  1. (mathematics) The set of positive integers, {1, 2, 3, ...}.
  2. (mathematics, computer science) The set of non-negative integers, {0, 1, 2, 3, ...}.

Usage notes[edit]

In computer science, the natural numbers always include zero. In mathematics, some texts define them to include zero and some do not.

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References[edit]

  • natural number” in Dictionary.com Unabridged, v1.0.1, Lexico Publishing Group, 2006.
  • natural number” in The American Heritage® Dictionary of the English Language, Fourth Edition, Houghton Mifflin Company, 2000.
  • "natural number" in WordNet 2.0, Princeton University, 2003.