Definition: (1) A subunit of a unit is not equal to the unit itself. For instance, a proper substring is not the whole string, a proper subset is not the whole set, a proper subgraph is not the whole graph, etc. (2) According to a rule, as in proper coloring.
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Entry modified 17 December 2004.
HTML page formatted Fri Mar 25 16:20:34 2011.
Cite this as:
Paul E. Black, "proper", in Dictionary of Algorithms and Data Structures [online], Paul E. Black, ed., U.S. National Institute of Standards and Technology. 17 December 2004. (accessed TODAY) Available from: http://www.nist.gov/dads/HTML/proper.html