Hi "ab", Actually "min_max" find the minimum possible value for the maximum of a list of variables, so you don't need to introduce a "maximum" variable X at all. You can simply write: min_max(( no_overlaps(Solution), %two tasks wich need the same guy cannot be at the same time labeling(L) ),L), Cheers Mark -- _______________________________________________________________ Dr. Mark Wallace, IC-Parc, Phone +44 (0)20 7594 8434 William Penney Laboratory, Fax +44 (0)20 7594 8432 Imperial College, London SW7 2AZ, UK. Email: mgw@icparc.ic.ac.ukReceived on Mon Nov 12 10:11:17 2001
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