This document discusses the degree of redundancy for space trusses and space frames. It defines that for a space truss, the degree of static indeterminacy is given by DS = m + R - 3j, where m is the number of members, R is the number of reactions, and j is the number of joints. For a rigid-jointed space frame, the degree of static indeterminacy is DS = 6m + R - 6j. The document also defines kinematic indeterminacy as the number of additional equations needed to determine all independent displacement components at the joints, and provides formulas to calculate kinematic indeterminacy for different types of trusses and frames.