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).
A driving range is an area where golfers can practice their golf swing. It can also be a recreational activity itself for amateur golfers or when enough time for a full game is not available.riving ranges may have natural grass, similar to a golf course, or players may have to use synthetic mats that resemble real turf. Golfers pay for various sizes of buckets of balls, usually designated as small (30â50 balls), medium (50-80 balls), and large (80-150 balls), and hit at their leisure.