1. The first law is that—Natives belonging to class A may only intermarry with class B, and natives belonging to C may only intermarry with class D.
2. The progeny of a man and woman of intermarrying classes is of a different class from either father or mother.
Thus a man of class B marries a woman of class A, but their offspring (male or female) is of class D.
Let Am represent a male of class A.
Let Af represent a female of class A, and similarly Bm, Bf, etc.
Let Ap represent progeny who belong to class A, and similarly Bp, Cp, Dp.
Law 2 may now be set down as under—
| Af + Bm | Am + Bf | Cf + Dm | Cm + Df | |||
| ------- | ------- | ------- | ------- | |||
| Dp | Cp | Bp | Ap |
3. The first law holds good with the progeny of these combinations, i.e., Dp can only marry one of class C—though neither the father nor mother of Dp could marry into class C; similarly for Cp, etc.
4. Dp recognises as father or mother all members of classes A and B; similarly Cp, etc.