Livia Cardenas

2022-07-15

Permutations: Discrete Math
How many permutations are there of the set (a,b,c,d,e,f,g)

Julianna Bell

Expert

Step 1
Generally, given a collection (aka multi-set) of:
- ${m}_{1}$ identical elements
- ${m}_{2}$ identical elements- …
- ${m}_{n}$ identical elements
Step 2
The number of permutations of the elements in it is:
$\frac{n!}{{m}_{1}!\cdot {m}_{2}!\cdot \dots \cdot {m}_{n}!}$

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