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Tom Avery explains a categorical construction of the concept of probability measure.

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Yet more evidence that the NSA wants to make it impossible to communicate privately.

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FINAL CFP and EXTENDED DEADLINE: SoTFoM II `Competing Foundations?', 12-13 January 2015, London. The focus of this conference is on different approaches to the foundations of mathematics. The interaction between set-theoretic and category-theoretic foundations has had significant philosophical impact, and...

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John Huerta has completed the fourth of a series of papers on supersymmetry and division algebras.

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The one-to-one correspondence between simple and projective indecomposable modules.