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The set theory symbol (aleph) for the cardinal number of a well-orderable infinite set.

The algebraic unknotting number of a knot K in S^3 is defined as the algebraic unknotting number of the S-equivalence class of a Seifert matrix of K. The algebraic unknotting ...

Analytic number theory is the branch of number theory which uses real and complex analysis to investigate various properties of integers and prime numbers. Examples of topics ...

A group in which any decreasing chain of distinct subgroups terminates after a finite number.

The number of single operations (of addition, subtraction, and multiplication) required to complete an algorithm.

The set of all sets is its own power set. Therefore, the cardinal number of the set of all sets must be bigger than itself.

A test which always identifies prime numbers correctly, but may incorrectly identify a composite number as a prime.

Maximize the number of cookies you can cut from a given expanse of dough (Hoffman 1998, p. 173).

One of the Plücker characteristics, defined by p=1/2(n-1)(n-2)-(delta+kappa)=1/2(m-1)(m-2)-(tau+iota), where m is the class, n the order, delta the number of nodes, kappa the ...

z^p-y^p=(z-y)(z-zetay)...(z-zeta^(p-1)y), where zeta=e^(2pii/p) (a de Moivre number) and p is a prime.