Talk:Arithmetical set

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[edit] don't merge, please

Does anyone mind if I merge this into arithmetical hierarchy? CMummert 02:09, 22 July 2006 (UTC)

I have since rewritten arithmetical hierarchy and this page is not redundant with it. This page covers arithmetical sets in general, much like computable set covers computable sets in general. The hierarchy article is all about the subclassification. This page also covers implicitly arithmetical sets, which are not covered by the hierarchy page. So please don't redirect this article to the hierarchy article. CMummert ยท talk 17:44, 13 February 2007 (UTC)

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