Talk:μ-recursive function

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This page was a REDIRECT to Talk:Recursive function. Let us have a real talk page instead. JRSpriggs 05:54, 11 August 2006 (UTC)

[edit] Definition of search operation mu

I brought back the old definition of the search operation because the new one introduced by CMummert is not actually computable. JRSpriggs 06:15, 11 August 2006 (UTC)

My previous definition wasn't very clear; I was using the word function to mean total function. Of course minimization of partial functions is not computable. I saw last week that you had fixed it. Thanks. CMummert 19:15, 13 August 2006 (UTC)

χ ψ Ψ ψ φ τ Χ μ ≤ ≥ ≠ → ← Ø ≡ ℛ

Am confused how the 0 as the least number suddenly jumped in here. My question has to do with "the function R" inside the mu-operator -- shouldn't it actually be a representing function of a predicate such that it evaluates to 0 if true and 1 if false?

I figured it out. So I will cut this junk below and save some trees. wvbaileyWvbailey 22:37, 8 November 2006 (UTC)

[edit] Defines the same thing as Computable function

To me, the title suggests that the purpose of the article is to define a certain class of functions. However, the same class is already defined in computable function. Wouldn't it make more sense for the title of the article to be "Mu-recursion", since what is unique to this article is that particular definition of "computable function"? Also, is there any reason the article should not be merged with Mu-operator? —The preceding unsigned comment was added by Quux0r (talkcontribs) 2007-04-11T02:14:22.

The idea is that computable function is written so that it is independent of the specific model of computation, and this page is about one particular model of computation. The computable function article does not define this class of functions specifically, it just links here. You could merge this with mu operator but both this page and that page are quite long so it would take a lot of trimming to merge them. I for one would not object to the trimming. You might want to put up merge tags and wait a few days, and/or write the merged version in a sandbox. CMummert · talk 02:20, 11 April 2007 (UTC)