Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!elroy.jpl.nasa.gov!decwrl!stanford.edu!neon.Stanford.EDU!Gang-of-Four.Stanford.EDU!iam From: iam@Gang-of-Four.Stanford.EDU (Ian Mason) Newsgroups: comp.theory Subject: Re: Naive question Message-ID: <1991Apr12.193006.20310@neon.Stanford.EDU> Date: 12 Apr 91 19:30:06 GMT References: <755@uqcspe.cs.uq.oz.au> Sender: news@neon.Stanford.EDU (USENET News System) Reply-To: iam@Gang-of-Four.Stanford.EDU (Ian Mason) Organization: Stanford University Lines: 8 if by a recursively enumerable set of functions you mean a recursively enumerable set of indices of such fuctions, then the rice shapiro theorem gives a strong negative answer to you question. a reference to it is nigel cutland's computability. -iam-