2008 Toronto International Film Festival 2008 Toronto International Film Festival The 2008 Toronto International Film Festival, (TIFF) was held in Toronto, Ontario, Canada. This 33rd annual festival was from September 4 to September 13, 2008. The opening night gala was the World War I romantic epic "Passchendaele" from Canadian director Paul Gross. Festival is heavy on Canadian fare as well as featuring prominent indie films and worldwide and/or North American debuts including: "Adoration" directed by Canada's own Atom Egoyan, "Appaloosa" the second film from Ed Harris (who directed "Pollock"), "Blindness" from screenwriter-director, Fernando Meirelles, Iraq war thriller "The Hurt Locker" directed by Kathryn Bigelow, and
Directed set While the definition of a directed set is for an "upward-directed" set (every pair of elements has an upper bound), it is also possible to define a downward-directed set in which every pair of elements has a common lower bound. A subset of a poset is downward-directed if and only if its upper closure is a filter. Directed subsets are used in domain theory, which studies directed complete partial orders. These are posets in which every upward-directed set is required to have a least upper bound. In this context, directed subsets again provide a generalization of convergent sequences. Directed set