Compositionality in Network Theory

Here are the slides of my talk at the workshop on compositionality at the Simons Institute for the Theory of Computing next week:

• John Baez, Compositionality in network theory, 6 December 2016.

Abstract. To describe systems composed of interacting parts, scientists and engineers draw diagrams of networks: flow charts, Petri nets, electrical circuit diagrams, signal-flow graphs, chemical reaction networks, Feynman diagrams and the like. In principle all these different diagrams fit into a...