A prehistory of \(n\)-categorical physics. (English) Zbl 1236.81006
Halvorson, Hans (ed.) et al., Deep beauty. Understanding the quantum world through mathematical innovation. Papers based on the presentations at the deep beauty symposium, Princeton, NJ, USA, October 3–4, 2007. Cambridge: Cambridge University Press (ISBN 978-1-107-00570-9/hbk; 978-1-139-06608-2/ebook). 13-128 (2011).
Reviewer: Hirokazu Nishimura (Tsukuba)