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Jeremy joined AoPS in 2009. He earned his Ph.D. in mathematics from the University of Chicago in 2006 and was a C.L.E. Moore Instructor at MIT from 2006 to 2009. He once specialized in turning hard problems in geometry, algebra, and mathematical physics into easy problems in combinatorics and graph theory. Now he specializes in helping to redistribute mathematics from brilliant teachers to brilliant students. He gets his signs right 50 percent of the time, struggles with problems that lack symmetry, and secretly believes that every problem somehow reduces to the Chinese Remainder Theorem.