September 27

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Better Than News

Beyond Plausible

In Other Words

Are You Sure

... that mathematician and academic Hans Hahn was interested in philosophy, and was part of a discussion group concerning Ernst Mach's positivism with Otto Neurath and Phillip Frank prior to the First World War; and that in 1922, Hahd helped arrange Moritz Schlick's entry into the group, which led to the founding of the Vienna Circle, the group that was at the center of logical positivist thought in the 1920s; and that Hahn's most famous student was Kurt Gödel?

Selected Anniversaries

Topic of the Day

William Gibson