Dear all, the `space_dim' branch has been merged back to the main trunk. In order to avoid confusion, the best thing to do is not to use that branch any longer. In any case, I have tagged both the branch and the trunk so that the occasional commit to the dead branch will not be lost. Ciao, Roberto -- Roberto Bagnara Computer Science Group Department of Mathematics, University of Parma, Italy http://www.cs.unipr.it/~bagnara/ mailto:bagnara@cs.unipr.it