5-3.2 Conditional agreement.
The agreement in field one is conditioned by agreement in
field two. If the data in field two agrees, we know that the data in field one must agree. Some
disagreement in field one is conditioned by the disagreement of field two, and some is not. Also the
data must be present in field two before it can be present in field one. The relationships between the
fields in the comparison space seems to be somewhat as diagramed in figure 2. The concentric
circles illustrate the fact that P1
P2 and that A1 A2.
