Category:Examples of Derangements
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This category contains examples of Derangement.
A derangement is a permutation $f: S \to S$ from a set $S$ to itself where:
- $\forall s \in S: \map f s \ne s$
That is, a permutation with no fixed points.
If $S$ is finite, the number of derangements is denoted by $D_n$ or $d_n$, where $n = \card S$ (the cardinality of $S$.)
Pages in category "Examples of Derangements"
The following 2 pages are in this category, out of 2 total.