Intermezzo (small graph rewrite systems)

Between the last post on small graph rewrite systems and a new one to follow, here are some other, real world examples of such systems.

Where is this from? Answer: M. Khovanov,   New geometrical constructions in low-dimensional topology, preprint 1990, fig. 20

spinb

Where is this from? Answer: L.H. Kauffman, Knots and Physics, World Scientific 1991, p. 336.

slideq

How can we put this in order?

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