A condition is said to hold almost everywhere on a measurable set \(X\) if the subset \(N\) of elements of \(X\) on which the condition does not hold has measure zero, i.e., if \(N\) is a null set.
- [MLA] “almost everywhere.” Platonic Realms Interactive Mathematics Encyclopedia. Platonic Realms, 21 Feb 2013. Web. 21 Feb 2013. <http://platonicrealms.com/>
- [APA] almost everywhere (21 Feb 2013). Retrieved 21 Feb 2013 from the Platonic Realms Interactive Mathematics Encyclopedia: http://platonicrealms.com/encyclopedia/almost-everywhere/