Hermann Weyl (1885–1955) wasn't Jewish, but his wife was. Like Albert Einstein, Weyl went to the Institute for Advanced Study in Princeton, New Jersey. Paul Bernays (1888–1977) lost his teaching job but kept his position as Hilbert's most loyal assistant until leaving for Zurich. Bernays is largely credited with writing the two volumes of Grundlagen der Mathematik (1934, 1939) although the books were published under both Hilbert's and Bernay's names.
At a banquet, Hilbert found himself sitting next to the Minister of Education. "And how is mathematics at Göttingen now that it has been freed of the Jewish influences?" Hilbert was asked. He replied, "Mathematics at Göttingen? There is really none anymore."³³
For those mathematicians who continued to explore mathematical logic — now increasingly not at Göttingen — problems still remained to be solved.