Paul Bernays

Paul Isaac Bernays (17 October 1888 – 18 September 1977) was a Swiss mathematician who made significant contributions to mathematical logic, axiomatic set theory, and the philosophy of mathematics. He was an assistant and close collaborator of David Hilbert. Provided by Wikipedia
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Sets and classes [E-Book] : on the work by Paul Bernays /
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Axiomatic set theory /
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Axiomatic set theory [E-Book] /
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Vom Denken in Begriffen : Mathematik als Experiment des reinen Denkens /
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