EntityQ341835· pop 29· linked from 134 articlesAckermann functionSign in to savetotal non-primitive-recursive computable functionConnectionsrecursionEntityfloor and ceiling functionsEntityRaphael M. RobinsonEntitynumberEntityInternational Standard Book NumberEntityDavid HilbertEntityalgorithmEntityPythonEntitynatural numberEntityCarl SaganEntityadditionEntitymultiplicationEntitydivisionEntitylogarithmEntity1000000EntitysubtractionEntityQ43016Entitydigital object identifierEntityInternational Standard Serial NumberEntitycompilerEntityCategoriesArithmeticComputability theoryLarge integersSpecial functionsTheory of computation