| http://www.w3.org/ns/prov#value | - Nima Arkani-Hamed, Jacob L. Bourjaily, Freddy Cachazo, Alexander B. Goncharov, Alexander Postnikov, and Jaroslav Trnka expose the power of their new formalism based on the positive Grassmannians (a Grassmannian in this sense is a space of \(k\)-dimensional hyperplans in an \(n\)-dimensional hyperspace; the positivity condition means that all minors i.e. sign-corrected subdeterminants or minors hav
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