Strong Convergence for IDNA Sequences

In this paper, we prove the symmetrized NA sequence is also a NA sequence,establish the theorem of three series for NA sequences on the normal truncation form.and by using the above results,we give the Marcinkiewicz Strong Law of Large Numbers and a series of results on the complete convergence for identically distributed negatively associated （IDNA） sequences, these results have forms very similar to that for iid sequences.