I.

The classification of rights according to the level of reflections of the human mind

II.

Rights at the first level are posited in being either by the act of one person or by the acts of many persons

III.

The acts of two or more persons can influence rights either by modifying existing acts or by producing new acts, or by doing both these things

IV.

The concerted acts of two or more persons produce new rights only in the case of association

V.

The modification of rights has its origin either in the act which produces them or later

VI.

The modifications of rights are produced both by the acts of two or more persons and by the act of a single person

VII.

The modifications of rights either consist solely in changing the subject of right or alter the form of right itself

VIII.

Only first-level rights are true rights those at higher levels are, properly speaking, only modifications of rights

IX.

Conclusion regarding the order of matters to be discussed in the remaining books