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References to 'universal relation'
1. an outline of Hilbert's programme by gribskoff
2. analytics and formal logics in meta-mathematics by bci1
3. arithmetical hierarchy is a proper hierarchy by Henry
4. Cartesian product by djao
5. class by yark
6. from Hilbert's tenth problem to G\"{o}del's trichotomy by gribskoff
7. function by djao
8. interpretation of intuitionistic logic by means of functionals by gribskoff
9. intuitionistic logic by gribskoff
10. mathematical platonism by gribskoff
11. permutation model by ratboy
12. Russell's theory of types by Aatu
13. second order logic by Henry
14. the inclusion of classical into intuitionistic logic by gribskoff
15. universal relations exist for each level of the arithmetical hierarchy by Henry