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7 April 2025

diffhist Polynomial hierarchy 08:34 −21 LaundryPizza03 talk contribs (−Category:Structural complexity theory; ±Category:Hierarchy→Category:Mathematical logic hierarchies using HotCat)
diffhist m Polynomial hierarchy 08:33 −60 LaundryPizza03 talk contribs (rm circular redirect from merge)
diffhist Polynomial hierarchy 08:30 +901 LaundryPizza03 talk contribs (→Relationships to other classes: Merging from PH (complexity), which is exactly the same topic.)