Source: wikibot/free-monoid
= Free monoid
{wiki=Free_monoid}
A **free monoid** is a mathematical structure that consists of a set of elements combined with an associative operation. More specifically, it is formed from a set and includes the operation of concatenation (or joining) of its elements. Here are the key details: 1. **Set**: Let \\( S \\) be a set of elements. For example, \\( S \\) could be a set of characters or symbols.