Elsevier, Theoretical Computer Science, (546), p. 7-9, 2014
DOI: 10.1016/j.tcs.2014.02.040
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In this short tribute to Glynn Winskel, I recall some memories of the first time we met, and describe some recent work on contextual semantics of observational systems which can be used to model quantum non-locality and contextuality, and which has been influenced by Glynn's work on event structures and presheaf semantics for concurrency.