Path: utzoo!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!wuarchive!sdd.hp.com!elroy.jpl.nasa.gov!ncar!midway!mimsy!mojo!eng.umd.edu!lev From: lev@eng.umd.edu (Lev Novik) Newsgroups: comp.theory Subject: Inferences Message-ID: <1991Mar11.193909.10853@eng.umd.edu> Date: 11 Mar 91 19:39:09 GMT Sender: news@eng.umd.edu (C-News) Reply-To: lev@eng.umd.edu (Lev Novik) Organization: College of Engineering, Maryversity of Uniland, College Park Lines: 14 Hi! I have a problem: ----- Suppose we have a set of elements, and a set of inferences of the type "If we know _these_ elements, we can find _that_ one." Problem: find the smallest set from which we can derive all elements of te original set. ----- Can anybody refer me to any algorithm on this (preferably not NP).? Thanks. ------------------------------------ Lev Novik Dept. of Mathematics University of Maryland, College Park.