Harvey Friedman

Harvey Friedman (born September 23, 1948) is a mathematical logician who taught at the until his retirement in the summer of 2012.

Some of Friedman's work involves very large numbers. For example, he discovered the block subsequence theorem, circle theorem, the TREE sequence and the subcubic graph numbers. His finite promise games exceeds even Loader's function.

Friedman is also a self-taught amateur pianist.