for S being non empty 1-sorted
for x being Element of SCM-Instr S holds
( ( x in {[0,{},{}]} & InsCode x = 0 ) or ( x in { [I,{},<*a,b*>] where I is Element of Segm 8, a, b is Element of SCM-Data-Loc : I in {1,2,3,4} } & ( InsCode x = 1 or InsCode x = 2 or InsCode x = 3 or InsCode x = 4 ) ) or ( x in { [6,<*i*>,{}] where i is Nat : verum } & InsCode x = 6 ) or ( x in { [7,<*i*>,<*a*>] where i is Nat, a is Element of SCM-Data-Loc : verum } & InsCode x = 7 ) or ( x in { [5,{},<*a,r*>] where a is Element of SCM-Data-Loc , r is Element of S : verum } & InsCode x = 5 ) )