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Ernst Specker

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Ernst Specker, 1982

Ernst Paul Specker (11 February 1920, Zürich – 10 December 2011, Zürich) was a Swiss mathematician. Much of his most influential work was on Quine's New Foundations, a set theory with a universal set, but he is most famous for the Kochen–Specker theorem in quantum mechanics, showing that certain types of hidden-variable theories are impossible. He also proved the ordinal partition relation ω2 → (ω2, 3)2, thereby solving a problem of Erdős.

Specker received his Ph.D. in 1949 from ETH Zurich,[1] where he remained throughout his professional career.

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