In mathematics, a binary relationR 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!
... 8.7% have a female householder with no husband present, and 23.4% are non-families. 20.1% of all households are made up of individuals and 10.6% have someone living ...