The answer is - Modulus
What branch of mathematics was founded from a paper "On a Characteristic Property of All Real Algebraic Numbers" (1874) by Georg Cantor, who built on the work of Zeno, Bernard Bolzano & Richard Dedekind, which, in turn was followed up by Bertrand Russell, Ernst Zermelo, Abraham Fraenkel & Henri Lebesgue?
What is the overall name for a branch of applied mathematics used to study behaviour in strategic situations, in which an individual's success in making choices depends on the choices of others?
For a point in mathematics, what describes a set of points containing it where one can move in any direction away from that point without leaving the set?
What name is given to 7 mathematics problems stated by the Clay Mathematics Institute in 2000, for which a US$1,000,000 prize will be awarded for a correct solution to any of them?
In mathematics, what is the name for the following sequence of numbers: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765 ...