Combinatorics (subject)

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Overview

Combinatorics studies how many combinations (or permutations) there are of doing things. For example, given 2 finite sets, how many functions are there from 1 to the other? This is combinatorics. A small amount of it is very useful, a deeper amount provides useful insight into counting things.

Statistics

The combinatorics project of this site contains:

• (All pages) - 13 pages
• Definitions - 11 pages
• Theorems, lemmas and corollaries - 0 pages