¶ System
Index Entry
A system divides all the Universe into three parts:
(1) All of the Universe outside the system;
(2) All of the Universe inside the system; and,
(3) The remaining aggregate of the Universe whose members altogether constitute the polyhedral system which definitely separates all the insideness of Universe from all the outsideness of Universe.
It takes a minimum of four points not lying in the same plane to produce insideness and outsideness. Four points not in the same plane inherently describe a tetrahedron, regular or irregular.
-Cite SET X, p.13, Aug’72
