Yves Cochet (born 15 February 1946) is a French politician, member of Europe Écologie–The Greens. He was minister in the government of Lionel Jospin. On 6 December 2011, he was elected member of the European Parliament (MEP). He studied Mathematics and became researcher-lecturer at Institut National des Sciences Appliquées of Rennes in 1969. In June 1971, teaming with Maurice Nivat, he obtained a PhD for his research on « Sur l'algébricité des classes de certaines congruences définies sur le monoïde libre ».

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