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.
If you have suggestions, corrections, or comments, please get in touch with Paul Black.
Entry modified 17 December 2004.
HTML page formatted Wed Mar 13 12:42:46 2019.
Cite this as:
Paul E. Black, "proper", in Dictionary of Algorithms and Data Structures [online], Paul E. Black, ed. 17 December 2004. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/proper.html