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Open access

Know-how for mathematical reasoning is a public good.

If you have an apple and I have an apple and we exchange apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.

- Attributed (apocryphally, it appears) to George Bernard Shaw

The videos and slides are released under a CC BY-SA 4.0 license. This license does not inhibit your right to fair use in the works.

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Creative Commons License © Copyright 2011-2015 David Liao. These videos and slides are open course ware made available under a Creative Commons license (CC BY-SA 4.0). The lightbox and social sharing effects are scripts by Stéphane Caron (CC BY 2.5).