Agreement must be on a defined domain

A future prescription must specify:

1. a reference distribution $t^{\circ }$ on a stated off-characteristic domain;

2. the exact characteristic locus and graph or common kernel space on which it is extended;

3. agreement with $t^{\circ }$ and with the grouped frozen line prescription;

4. a finite uniform transverse degree;

5. a closed conic wavefront bound and its extension theorem;

6. the normalization selecting a permissible map under the unchanged ambiguity contract.

It is not enough to say that every separate line is defined. The reference joint distribution must be defined on the domain on which agreement is required.