ɪn mˌæθɪmˈæɾɪks, spəsˈɪfɪkli ɪn klˈæs θˈiəɹiz, ðɪ ˈæksɪəm ʌv ɡlˈoʊbəl tʃˈɔɪs ɪz ɐ stɹˈɔŋɡɚ vˈɛɹiənt ʌvðɪ ˈæksɪəm ʌv tʃˈɔɪs ðæt ɐplˈaɪz tə pɹˈɑːpɚ klˈæsᵻz ʌv sˈɛts æz wˈɛl æz sˈɛts ʌv sˈɛts.
In mathematics, specifically in class theories, the axiom of global choice is a stronger variant of the axiom of choice that applies to proper classes of sets as well as sets of sets.