=== Base Template !DisjointnessOf2Classes ===

[[br]]This template expresses that two classes have no members in common (that the classes are disjoint). !DisjointnessOf2Classes(x, y) means that the intersection of x and y is empty. 
[[br]]
[[br]]Roles: 
[[br]]1 hasClass1 Class 
[[br]]2 hasClass2 Class 

Axiom: 
{{{
DisjointnessOf2Classes(x1, x2) <-> 
Class(x1) & 
Class(x2) & 
IntersectionOf2Classes(x1, x2, EmptyClass) . 
}}}

NOTE See 8.3 for further information on the representation used in this template. See 8.2.1 for a description of the item !EmptyClass used in this template.