HomeServicesBlogDictionariesContactSpanish Course
← Back to search

Meaning of arithmetical hierarchy | Babel Free

Noun CEFR B2

Definitions

A hierarchy which classifies the complexity of first-order formulae (and sets defined by them) based on the number of alternations between series of unbounded existential quantifiers and universal quantifiers.

Equivalents

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

Learn this word in context

See arithmetical hierarchy used in real conversations inside our free language course.

Start Free Course