The following are the current most viewed articles on Wikipedia within Wikipedia's Mathematical logic hierarchies category. Think of it as a What's Hot list for Mathematical logic hierarchies. More info »
This is a beta release and so the figures may be a day or two out of date. We'd love to get your thoughts.
Rank  Topic  Wikipedia views  

1  Borel hierarchy  81  
2  Arithmetical hierarchy  63  
3  Analytical hierarchy  25  
4  Arithmetical set  25  
5  Wadge hierarchy  25  
6  Post's theorem  15  
7  Projective hierarchy  8  
8  Tarski–Kuratowski algorithm  7  
9  Difference hierarchy  less than 5 views 
In mathematical logic, these hierarchies classify various objects, such as real numbers (equivalently, sets of natural numbers) and sets of real numbers, based on various definability and complexity criteria.
This category contains articles about these hierarchies as well as theorems and terms relating to them.
The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes (learn more).
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BDP 
P cont.TW 
