Function group

group<T>(
    set: ChalkboardSet<T>,
    operation: (a: T, b: T) => T,
    identity?: T,
    inverter?: (a: T) => T,
): ChalkboardStructure<T>
Defines an algebraic structure known as a group.
Type Parameters
- T
Parameters
- set: ChalkboardSet<T>
  The set of the group
- operation: (a: T, b: T) => T
  The operation of the group
- Optionalidentity: T
  The identity element of the group (optional if the set is Z, Q, R, C, A, S, M, or GL)
- Optionalinverter: (a: T) => T
  The function to calculate the inverse of an element of the group (optional if the set is Z, Q, R, C, M, A, S, or GL)
Returns ChalkboardStructure<T>
Example
```
const Z4 = Chalkboard.abal.group(Chalkboard.abal.Z(4), (a, b) => (a + b) % 4, 0, (a) => (4 - a) % 4);
const valid = Chalkboard.abal.isGroup(Z4); // Returns true
```
- Defined in Chalkboard.abal.ts:611