Solomon Feferman

Solomon Feferman
Solomon Feferman at the Association of Symbolic Logic, Pittsburgh, May 2004
Born	(1928-12-13)December 13, 1928 The Bronx, New York City, US
Died	July 26, 2016(2016-07-26) (aged 87) Stanford, California, US
Alma mater	California Institute of Technology University of California, Berkeley
Era	Contemporary philosophy
Region	Western philosophy
School	Analytic Predicativism
Thesis	Formal Consistency Proofs and Interpretability of Theories (1957)
Doctoral advisor	Alfred Tarski
Doctoral students	Jon Barwise Carolyn Talcott
Main interests	Philosophy of mathematics Proof theory Theory of computation
Notable ideas	Stratified systems for the foundations of category theory[1] Feferman–Schütte ordinal Ordinal collapsing function Explicit mathematics

Solomon Feferman (December 13, 1928 – July 26, 2016)^[2] was an American philosopher and mathematician who worked in mathematical logic. In addition to his prolific technical work in proof theory, computability theory, and set theory, he was known for his contributions to the history of logic (for instance, via biographical writings on figures such as Kurt Gödel, Alfred Tarski, and Jean van Heijenoort) and as a vocal proponent of the philosophy of mathematics known as predicativism, notably from an anti-platonist stance.