Starbucks Starbucks, along with its partner Delek Group of Israel, closed all six of its locations in Israel, citing "on-going operational challenges" and a "difficult business environment." The Starbucks location in the former imperial palace in Beijing closed in July 2007. The coffee shop had been a source of ongoing controversy since its opening in 2000 with protesters objecting that the presence of the American chain in this location "was trampling on Chinese culture." In July 2008, the company announced it was closing 600 underperforming company-owned stores and cutting U.S. expansion plans amid growing economic uncertainty. On July 29, 2008, Starbucks
Closure operator a subset originated in the work of Frigyes Riesz in connection with topological spaces. Closure operators are also called "hull operators", which prevents confusion with the "closure operators" studied in topology. A set together with a closure operator on it is sometimes called a closure space. Closure operators have many applications: In topology, the closure operators are "topological" closure operators, which must satisfy for all formula_4 (Note that for formula_5 this gives formula_6). In algebra and logic, many closure operators are finitary closure operators, i.e. they satisfy In universal logic, closure operators are also known as consequence operators. In the