Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!netnews.upenn.edu!grad2.cis.upenn.edu!aaron From: aaron@grad2.cis.upenn.edu (Aaron Watters) Newsgroups: comp.theory Subject: Re: Academic legend (was Re: Answers...) Message-ID: <19983@netnews.upenn.edu> Date: 5 Feb 90 12:54:14 GMT References: <20433@watdragon.waterloo.edu> <2072@rex.cs.tulane.edu> Sender: news@netnews.upenn.edu Reply-To: aaron@grad2.cis.upenn.edu.UUCP (Aaron Watters) Organization: University of Pennsylvania Lines: 11 In article <2072@rex.cs.tulane.edu> fs@rex.UUCP (Frank Silbermann) writes: >A notation is but a language, and a proof theory >merely a way of verifying one's hypotheses. >The models are what make a theory interesting. I like the spirit, but I have to object that `proof theories' are seldom used at all (except for trivial things like type checking and getting students to drop your class on symbolic logic). Proof theories are primarily an abstract object of mathematical discussion and not a used mathematical technique. -aaron