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Today, I am at the final day of the QCon London 2012 conference in partuculary in the Scala and Functional Languages track.

Philip Wadler gave an excellent presentation on functional programming and his belief about lambda calculas, mathematical formal logic and an advanced computer science. At the end of his talk, there was a lot of people who stayed behind for question answers. Of course, one of the audience members asked the proverbial question: “What is a Monad?”

Here is Professor Wadler, University of Edinburgh, best distinguished answer to this question?

e a

Stayed tuned for a full report on QCon London 2012 😉