theorem Th74:
  the multF of GFuncs X = (X-composition)||Funcs(X,X)
proof
A1: carr(GFuncs X) = Funcs(X,X) by Def40;
  op(GFuncs X) c= op(GPFuncs X) & dom op(GFuncs X) = [:carr(GFuncs X),
  carr( GFuncs X):] by Def23,FUNCT_2:def 1;
  hence thesis by A1,GRFUNC_1:23;
end;
