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Contravariance is the Dual of Covariance
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| by Erik Meijer Follow 1 Followers on Apr 30, 2014 |

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Erik Meijer introduces covariance and contra-variance with real world examples.

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Erik Meijer is a Dutch computer scientist and entrepreneur. From 2000 to early 2013 he was a software architect for Microsoft where he headed the Cloud Programmability Team. He then founded Applied Duality Inc. in 2013. Before that, he was an associate professor at Utrecht University. He received his Ph.D from Nijmegen University in 1992.

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