Definition:Nu Function

Definition
The $\nu$ function is the function $\nu: \Z_{>0} \to \Z_{>0}$ is defined as:


 * $\forall n \in \Z_{>0}: \nu \left({n}\right) = $ the number of types of group of order $n$

Also see

 * Finite Number of Groups of Given Finite Order: $\nu \left({n}\right)$ is finite for any given $n \in \Z_{>0}$.

Linguistic Note
$\nu$ is the 13th letter of the Greek alphabet and voiced nu (pronounced new).