Function monoid

monoid<T>(
    set: ChalkboardSet<T>,
    operation: (a: T, b: T) => T,
    identity?: T,
): ChalkboardStructure<T>
Defines an algebraic structure known as a monoid.
Type Parameters
- T
Parameters
- set: ChalkboardSet<T>
  The set of the monoid
- operation: (a: T, b: T) => T
  The operation of the monoid
- Optionalidentity: T
  The identity element of the monoid (optional if the set is Z, Q, R, C, A, S, M, or GL)
Returns ChalkboardStructure<T>
Example
```
const residues = Chalkboard.abal.Z(5);
const additive = Chalkboard.abal.monoid(residues, (a, b) => (a + b) % 5, 0); // Defines the additive monoid modulo 5
```
- Defined in Chalkboard.abal.ts:1883