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First-order logic—also known as predicate logic, quantificational logic, and first-order predicate calculus—is a collection of formal systems used in mathematics...

The Mandelbrot set (/ˈmændəlbroʊt, -brɒt/) is a two-dimensional set with a relatively simple definition that exhibits great complexity, especially as it...

In mathematics, hyperreal numbers are an extension of the real numbers to include certain classes of infinite and infinitesimal numbers. A hyperreal number...

A repeating decimal or recurring decimal is a decimal representation of a number whose digits are eventually periodic (that is, after some place, the same...

The Canadian Mathematical Society (CMS; French: Société mathématique du Canada) is an association of professional mathematicians dedicated to the interests...

A permutable prime, also known as anagrammatic prime, is a prime number which, in a given base, can have its digits' positions switched through any permutation...

This article contains Armenian text. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Armenian letters...

Carathéodory's criterion is a result in measure theory that was formulated by Greek mathematician Constantin Carathéodory that characterizes when a set...

In mathematics, the tricorn, sometimes called the Mandelbar set, is a fractal defined in a similar way to the Mandelbrot set, but using the mapping z ↦...

Strong cryptography or cryptographically strong are general terms used to designate the cryptographic algorithms that, when used correctly, provide a very...

The simple matching coefficient (SMC) or Rand similarity coefficient is a statistic used for comparing the similarity and diversity of sample sets.[better source needed]...

The five color theorem is a result from graph theory that given a plane separated into regions, such as a political map of the countries of the world,...

In Euclidean geometry, two-dimensional rotations and reflections are two kinds of Euclidean plane isometries which are related to one another. A rotation...

The term cohort effect is used in social science to describe variations in the characteristics of an area of study (such as the incidence of a characteristic...

In mathematics, a Poisson superalgebra is a Z2-graded generalization of a Poisson algebra. Specifically, a Poisson superalgebra is an (associative) superalgebra...

In mathematics, probabilistic metric spaces are a generalization of metric spaces where the distance no longer takes values in the non-negative real numbers...

In mathematics, especially in the area of algebra known as group theory, the Prüfer rank of a pro-p group measures the size of a group in terms of the...

Bingo cards are playing cards designed to facilitate the game of Bingo in its various forms around the world. In the early 1500s the people of Italy began...

William George Kolakoski (September 17, 1944 – July 26, 1997), known as Bill to family and friends, was an American artist and recreational mathematician...

MULTOS is a multi-application smart card operating system, that enables a smart card to carry a variety of applications, from chip and pin application...