c/Mathematical logic hierarchies

Information
lexicalization	eng: Mathematical logic hierarchies
subclass of	(noun) a series of ordered groupings of people or things within a system; "put honesty first in her hierarchy of values" hierarchy
has instance	e/Analytical hierarchy
has instance	e/Arithmetical hierarchy
has instance	e/Arithmetical set
has instance	e/Borel hierarchy
has instance	c/Hierarchy of functions
has instance	e/Difference hierarchy
has instance	e/Post's theorem
has instance	e/Projective hierarchy
has instance	e/Tarski–Kuratowski algorithm
has instance	e/Wadge hierarchy