| Calling Sequence | a minus b
minus(a,b) | ||||||||||||
| Parameters |
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| Return Type | set | ||||||||||||
| Synopsis | Computes the set difference of two sets; that is a set consisting of all elements in a but not in b. The value intersect() is understood to be the entire universe, and hence subtracting intersect() will return the empty set and subtracting from intersect() is not allowed. | ||||||||||||
| Examples | > {1,2,3} minus {2,3,4};
{1}
> {1,2,3} minus {};
{1,2,3}
> {1,2,3} minus intersect();
{}
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| See also | intersect, member, subset, union | ||||||||||||