Dear Sir or Madame, I am Andrei Popescu, junior scientist at the University of Bucharest, Romania. I dear to ask for your help in the following matter: does there exist any characterization of the projective objects in the category of all the algebras of a given (arbitrary) signature? Thank you very much. Respectfully, Andrei 17-Dec-2002 19:04:31 -0400,5776;000000000001-00000000