Talk:Projective hierarchy: Difference between revisions

Content deleted Content added
priority -> Mid -- this is an extremely fundamental concept for DST
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::::There's a [[pointclass]] page that treats that material, with redirects from [[lightface]], [[lightface pointclass]], [[boldface pointclass]], and a link from [[boldface (disambiguation)]]. No one seems to have touched that page but me. I think it's a critical concept, given that it's the essential subject matter of descriptive set theory (one could almost say it should bear the same relation to the [[descriptive set theory]] article that [[set]] bears to [[set theory]]). I think I did a decent start-class job on the article, but I wonder whether people are actually using the material, given that no one has edited it. --[[User:Trovatore|Trovatore]] 07:11, 1 April 2007 (UTC)
:::And thanks for reverting me at [[Analytic set]], I remembed the distinction when I added it to [[analytical hierarchy]] but not this morning. I wasn't thinking. [[User:CMummert|CMummert]] · <small>[[User talk:CMummert|talk]]</small> 18:27, 31 March 2007 (UTC)
 
== Relationship to the [[Borel hierarchy]]? ==
 
We seem to have almost the same content on the page for the [[Borel hierarchy]] and if one blurs one's eyes, they cannot be told apart. Perhaps some clarifying distinction should be drawn. [[Special:Contributions/67.198.37.16|67.198.37.16]] ([[User talk:67.198.37.16|talk]]) 20:28, 27 November 2023 (UTC)