distributive law

Study of Distributive Law in Extended Interval Space

A study of the law of distributivity in the extended interval space is suggested. The research for interval in the center–radius form was conducted. The classification of the intervals is proposed. A set of intervals is represented as a union of three subsets which have defined by the relations of values the centers and the radii. We proved the lemma about the conditions under which the sum of the two intervals will own to same subset of the intervals you want to add. The conditions in which the sum of the two intervals belongs to the same subset as intervals, which are added.