"Rolle's Theorem", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License

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I mean, if it's that easy to get a theorem named for you ... "a straight line that passes through the center of a coplanar circle always divides the circle into two equal halves." Can I have that one? Wait, can I auction off the naming rights? It can be the Red Bull Theorem or the Quicken Loans Theorem, depending who wants it more.