Appaloosa (film) Appaloosa (film) Appaloosa is a 2008 American Western film based on the 2005 novel "Appaloosa" by crime writer Robert B. Parker. Directed by Ed Harris and co-written by Harris and Robert Knott, "Appaloosa" stars Harris alongside Viggo Mortensen, Renée Zellweger and Jeremy Irons. The film premiered at 2008 Toronto International Film Festival and was released in selected cities on September 19, 2008, then expanded into wide-release on October 3, 2008. The film shares some narrative similarities with the 1959 Western "Warlock", directed by Edward Dmytryk and starring Henry Fonda, Anthony Quinn and Richard Widmark. There is also a 1966 Western
Directed set Directed set In mathematics, a directed set (or a directed preorder or a filtered set) is a nonempty set "A" together with a reflexive and transitive binary relation ≤ (that is, a preorder), with the additional property that every pair of elements has an upper bound. In other words, for any "a" and "b" in "A" there must exist "c" in "A" with "a" ≤ "c" and "b" ≤ "c". The notion defined above is sometimes called an upward directed set. A downward directed set is defined analogously, meaning when every pair of elements is bounded below. Some authors (and