arithmetical hierarchy (Q669094)
hierarchy which classifies certain sets based on the complexity of formulas that define them
Language:
Current Data About arithmetical hierarchy
(P31) (Q17625380)
(P642)

(P138) (Q335148)
(P5168) "Kleene–Mostowski hierarchy" (language: en)

(Q515319)
(P5168) "Kleene–Mostowski hierarchy" (language: en)

(P170) (Q335148)

(P1889) (Q2103021)

(P2579) (Q205084)

(P5555) Arithmetic hierarchy.svg

other details
aliases arithmetic hierarchy
 Kleene–Mostowski hierarchy
description hierarchy which classifies certain sets based on the complexity of formulas that define them

External Links
(P646) /m/019h3l
(P6366) 7111173