A longtime member of the faculty at the Univeristy of Amsterdam, where he also did his degrees, Professor Groenenduk was especially well-known for the application of logical methods in the semantics and pragmatics of natural language in works that were of great interest to linguistis and philosophers of language. The Amsterdam memorial notice is here. Comments are open for remembrances from those who knew Professor Groenendijk, or for those who wish to comment on the significance of his work.