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 this article) assume that a directed set is directed upward, unless otherwise stated. Beware that other authors call a set directed if and only if it is directed both upward and downward. Directed sets are a generalization of nonempty totally ordered sets. That is, all totally ordered sets are directed sets (contrast "partially" ordered sets, which need not be directed). Join semilattices (which are partially ordered sets) are directed sets as well, but not conversely. Likewise, lattices are directed sets both upward and downward. In topology, directed sets are used to define nets, which generalize sequences and unite the various