A proposal to design expert system for the calculations in the domain of   QFT
  Main purposes of the paper are followings: 1) To show examples of the calculations in domain of QFT via ``derivative rules'' of an expert system; 2) To consider advantages and disadvantage that technology of the calculations; 3) To reflect about how one would develop new physical theories, what knowledge would be useful in their investigations and how this problem can be connected with designing an expert system. 
Andrea Severe