Lexus 2054 Lexus 2054 The Lexus 2054 is a concept car designed for the 2002 Steven Spielberg film "Minority Report". The vehicle was shown being built at an automated factory in the film, and later driven by star Tom Cruise in several action sequences. In 2002, Lexus was requested by Steven Spielberg, a Lexus owner himself, to design a vehicle that would fit the requirements of year 2054 for his movie adaptation of the Philip K. Dick short story "Minority Report". Designers working with Lexus came up with an advanced vehicle that would run on fuel cells and have many advanced safety
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