| Argument Position | Prohibited Expression | 
|---|---|
| Argument 1 | ¬_ | 
| Argument Position | Prohibited Expression | 
|---|---|
| Argument 1 | ¬_ | 
| Position | Name | Type | Description | |
|---|---|---|---|---|
| Parameters | ||||
| 1 | a | set | ||
| 2 | b | set | ||
| Returns | boolean | true if a is not a proper subset of b, false otherwise. | ||
| Type | Description | |
|---|---|---|
| Parameter Types | ||
| set meta | @retricts set meta |