(mathematics) A formula for the exponent of the highest power of a prime number that divides a given binomial coefficient.

(economics) The idea that capital accumulation is equal to production minus consumption.

(mathematics) A certain approximation theorem in complex analysis.

(geometry) A theorem stating that if A, B, and C are distinct points on a circle where the line AC is a diameter, the angle ABC is a right angle.

(mathematics) A result in combinatorics, stating that every set of integers with positive natural density contains a k-term arithmetic progression for every k.

(algebraic geometry) A theorem stating that a normal algebraic variety with an action of a torus can be covered by torus-invariant affine open subsets.

(geometry) A theorem that states in a cyclic quadrilateral, the product of the lengths of its diagonals is equal to the sum of the products of the lengths of the two pairs of opposite sides.

(mathematics) A theorem about triangles in plane geometry, regards the ratio of the side lengths of a triangle divided by cevians.

(set theory) A theorem in set theory which states for any set A, the set of all subsets of A (the power set of A, denoted by 𝒫(A)) has a strictly greater cardinality than A itself.

(mathematics) A theorem proving that it is always possible to tile a chessboard with dominoes if two squares of opposite colors are first removed from the board.