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In the classical case, the invariance, or symmetry, group and the covariance group coincide, but, interestingly enough, they part ways in relativistic physics. The symmetry group of the general theory of relativity includes all differentiable transformations, i.e., all properties of an object are dynamical, in other words there are no absolute objects. The formulations of the general theory of relativity, unlike those of classical mechanics, do not share a standard, i.e., there is no single formulation paired with transformations. As such the covariance group of the general theory of relativity is just the covariance group of every theory.
Which theory does the relativity depart from?
A: classical mechanics

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Sony have since launched their budget range of PlayStation 3 titles, known as the Greatest Hits range in North America, the Platinum range in Europe and Australia and The Best range in Japan. Among the titles available in the budget range include Resistance: Fall of Man, MotorStorm, Uncharted: Drakes Fortune, Rainbow Six: Vegas, Call Of Duty 3, Assassin's Creed and Ninja Gaiden Sigma. As of October 2009 Metal Gear Solid 4: Guns of the Patriots, Ratchet & Clank Future: Tools of Destruction, Devil May Cry 4, Army of Two, Battlefield: Bad Company and Midnight Club: Los Angeles have also joined the list.
What words would you see in the United States or Canada on a PS3 game that would signify its lower price?
A: Greatest Hits

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Despite trading for pitcher Matt Garza and signing free-agent slugger Carlos Pena, the Cubs finished the 2011 season 20 games under .500 with a record of 71-91. Weeks after the season came to an end, the club was rejuvenated in the form of a new philosophy, as new owner Tom Ricketts signed Theo Epstein away from the Boston Red Sox, naming him club President and giving him a five-year contract worth over $18 million, and subsequently discharged manager Mike Quade. Epstein, a proponent of sabremetrics and one of the architects of two world series titles in Boston brought along Jed Hoyer to fill the role of GM and hired Dale Sveum as manager. Although the team had a dismal 2012 season, losing 101 games (the worst record since 1966) it was largely expected. The youth movement ushered in by Epstein and Hoyer began as longtime fan favorite Kerry Wood retired in May, followed by Ryan Dempster and Geovany Soto being traded to Texas at the All-Star break for a group of minor league prospects headlined by Christian Villanueva. The development of Castro, Anthony Rizzo, Darwin Barney, Brett Jackson and pitcher Jeff Samardzija as well as the replenishing of the minor-league system with prospects such as Javier Baez, Albert Almora, and Jorge Soler became the primary focus of the season, a philosophy which the new management said would carry over at least through the 2013 season.
Who was the new owner of the Cubs?
A: Tom Ricketts

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The NES can be emulated on many other systems, most notably the PC. The first emulator was the Japanese-only Pasofami. It was soon followed by iNES, which was available in English and was cross-platform, in 1996. It was described as being the first NES emulation software that could be used by a non-expert. NESticle, a popular MS-DOS emulator, was released on April 3, 1997. There have since been many other emulators. The Virtual Console for the Wii, Nintendo 3DS and Wii U also offers emulation of many NES games.
What was the first English available emulator?
A:
iNES