reserve x,A for set, i,j,k,m,n, l, l1, l2 for Nat;
reserve D for non empty set, z for Nat;
reserve S for COM-Struct;
reserve ins for Element of the InstructionsF of S;
reserve k, m for Nat,
  x, x1, x2, x3, y, y1, y2, y3, X,Y,Z for set;

theorem Th4:
  for I being Instruction of Trivial-COM holds JumpPart I = 0
proof
  let I be Instruction of Trivial-COM;
  the InstructionsF of Trivial-COM = {[0,0,0]} by Def1;
  then I = [0,0,0] by TARSKI:def 1;
  hence thesis;
end;
