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).
Woods are used to hit long shots. If a golf hole is 450 yards from tee to green, most golfers use a wood to hit off the tee. A wood is a hollow-bodied large headed golf club. It's customary to use your woods when you are 175 yards or more away from the green. The driver (also called the 1 wood) has the lowest loft of any golf club.