610.10 Structural Functions
610.11 Triangulation is fundamental to structure, but it takes a plurality of positive and negative behaviors to make a structure. For example:
always and only coexisting push and pull (compression and tension);
always and only coexisting concave and convex;
always and only coexisting angles and edges;
always and only coexisting torque and countertorque;
always and only coexisting insideness and outsideness;
always and only coexisting axial rotation poles;
always and only coexisting conceptuality and nonconceptuality;
always and only coexisting temporal experience and eternal conceptuality.
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Fig. 609.01 Instability of Polyhedra from Polygons of More than Three Sides.
608.12 If we want to have a structure, we have to have triangles. To have a structural system requires a minimum of four triangles. The tetrahedron is the simplest structure.
608.13 Every triangle has two faces: obverse and reverse. Every structural system has omni-intertriangulated division of Universe into insideness and outsideness.