NIST

proper subset

(definition)

Definition: A set S2 is a proper subset of another set S1 if every element in S2 is in S1 and S1 has some elements which are not in S2.

See also subset, superset.

Author: PEB


Go to the Dictionary of Algorithms and Data Structures home page.

If you have suggestions, corrections, or comments, please get in touch with Paul Black.

Entry modified 17 December 2004.
HTML page formatted Fri Feb 23 10:06:08 2018.

Cite this as:
Paul E. Black, "proper subset", in Dictionary of Algorithms and Data Structures [online], Vreda Pieterse and Paul E. Black, eds. 17 December 2004. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/propersubset.html