# Category:Permutation Theory

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This category contains results about Permutation Theory.

Definitions specific to this category can be found in Definitions/Permutation Theory.

Let $S$ be a set of $n$ elements.

Let $r \in \N: r \le n$.

An **$r$-permutation of $S$** is an ordered selection of $r$ elements of $S$.

## Subcategories

This category has the following 12 subcategories, out of 12 total.

### A

### C

### E

### I

### N

### O

### S

## Pages in category "Permutation Theory"

The following 31 pages are in this category, out of 31 total.