From: rjones@colby.edu   
      
   nicky wrote:   
   > Dear comp.ai readers,   
   >   
   >   
   >>Since a few days ago, I have been seeking the recipe of de Kleer's   
   >>assumption-based truth maintenace system(ATMS). Almost two   
   >>decades ago,I certainly read the tutorial of ATMS authored by   
   >>Quinlan.   
   >   
   >   
   > Sorry, The author might be Forbus,K.   
   >   
   > Does anyone knows this article?   
   >   
   > Thanks in advance for your help.   
      
   I don't know to which article you are referring, but perhaps this book   
   would be helpful to you:   
      
      
     K. Forbus & J. de Kleer (1992). Building Problem Solvers, MIT Press.   
      
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