Noun. 1. set theory-the branch of pure mathematics that deals with the nature and relations of sets. math, mathematics, maths-a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement.
Long drive is a competitive sport where success is derived by hitting a golf ball the farthest by driving. A small but dedicated talent base of golfers populate the world of Long-Drive, with the top talent competing professionally in various events and exhibitions.ong drive clubs, which are always drivers, are different in many ways from consumer clubs. Until the recent club length limitation rules, the shafts were much longer than a normal 45 in (114.3 cm) shaft, sometimes exceeding 55 in (139.7 cm).
In 1975 George Bell of Australia shot a drive of 550 yards on the 577 yard 6th hole at St. Michaels in Sydney Australia. (He three putted for birdie) Because this was not in a PGA event, the record is not recognised.ohn Daly's best in competition is either 414 or 440 yards. Mike Dobbyn is the current World Long Drive Champion, with a distance of 551 yards. The longest drive recorded in a regulation golf match was a 515 yard drive shot by Mighty Mike Austin during the US National Seniors Open Championship on Sept. 25, 1974.