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Information from Prof. Antonio José Lopes
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I regret to inform the passing of a great researcher and mathematics educator Prof. Claude Gaulin (1938-2020), retired professor at Laval University, Quebec, CA
He was a great interlocutor and advisor of many generations of mathematical educators in Brazil and other countries in Latin America, Africa, Europe and other places on the 5 continents. He was organizer of the VII ICME held in 1992 in Québec.
Prof. Antonio José Lopes
Centro de Educação Matemática (CEM)
São Paulo, Brasil