Bang's theorem

Bang's theorem may refer to:


 * The solution to Tarski's plank problem by Thøger Bang (1917–1997)
 * A special case of Zsigmondy's theorem, on unique divisors of Mersenne numbers, by Alfred Sophus Bang (1866–1942)
 * Bang's theorem on tetrahedra, posed by Alfred Sophus Bang (1866–1942)