=== Base Template !IntersectionOf2Classes ===

[[br]]!IntersectionOf2Classes is a template for expressing that a class is the intersection of two classes. 
[[br]]
[[br]]!IntersectionOf2Classes(a, b, c) means that c is the intersection of a and b. 
[[br]]
[[br]]Roles: 
[[br]]1 hasClass1 Class 
[[br]]2 hasClass2 Class 
[[br]]3 hasClassIntersection Class 

Axiom: 
{{{
IntersectionOf2Classes(x1, x2, x3) <-> 
Class(x1) & 
Class(x2) & 
Class(x3) & 
exists y(EnumeratedSetOf2Classes(x1, x2, y) & 
IntersectionOfSetOfClassTemplate(y, x3)) . 
}}}

NOTE See 8.3 for further information on the representation used in this template.