  Solecki proved that the group of automorphisms of a countable structure
cannot be an uncountable free abelian group. See more in Just, Shelah and
Thomas math.LO/0003120 where as a by product we can say something on on
uncountable structures. We prove here the following Theorem: If A is a
countable model, then Aut(M) cannot be a free uncountable group.
