Encyclopedia > Reflexive relation

Article Content

Reflexive relation

In mathematics, a binary relation R on a set X is reflexive if a is R-related to itself for any a ∈ X. For example, "greater than or equal to" is a reflexive relation but "greater than" is not. All equivalence relations and partial orders are reflexive.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Westhampton Beach, New York

... 28.2% from 45 to 64, and 20.7% who are 65 years of age or older. The median age is 44 years. For every 100 females there are 93.5 males. For every 100 females age 18 ...