The

**set of N-subsets**of $X$ with respect to $n \in \mathbb{N}$ is the D11: Set \begin{equation} \mathcal{P}_n(X) : = \{ E \subseteq X : |E| = n \} \end{equation}

▾ Set of symbols

▾ Alphabet

▾ Deduction system

▾ Theory

▾ Zermelo-Fraenkel set theory

▾ Set

▾ Subset

▾ N-subset

▾ Alphabet

▾ Deduction system

▾ Theory

▾ Zermelo-Fraenkel set theory

▾ Set

▾ Subset

▾ N-subset

Child definitions