Two examples of 100% lawful systems: (a) An electricity switch, and (b) a mathematical rule
| Input | Operation and output |
|---|---|
| Input = switch position | Operation = switch change |
| Output = light | |
| Up | On |
| Down | Off |
| Input = number | Operation = add 2 |
| Output = number | |
| 2 | 4 |
| 3 | 5 |
| 4 | 6 |