Valid Intersection Rules
Valid intersection rules:

Must use the same dimensions that were defined within their valid intersection group

Define only valid intersections

Valid intersection rules within the same valid intersection group that produce an apparent conflict or overlap, are marked valid if either valid intersection rule condition is met
 Valid intersection rules in different valid intersection groups that produce an apparent redundancy or overlap, are marked valid if they satisfy the requirements of all valid intersection groups.
Thus, if any valid intersection group marks an intersection invalid, regardless of other valid intersection groups making it valid, the system will mark the intersection invalid. Invalid groups override valid group results.
Note:
If you want to remove valid intersections regardless of what other valid intersection groups allows, then this rule must be in a different valid intersection group.