Mathematical Autobiography. A K Peters. See also Foundations of geometry PROP (category theory) SPQR tree Notes References (e-book: ). Biographical references . With selected bibliography emphasizing Mac Lane's philosophical writings. . . External links Obituary press release from the University of Chicago. Photographs of Mac Lane, 1984–1999. Kutateladze S.S., Saunders Mac Lane, the Knight of Mathematics 1909 births 2005 deaths Mathematicians from Connecticut People from Norwich, Connecticut 20th-century American mathematicians 21st-century American mathematicians University of Chicago alumni University of Göttingen alumni Yale University alumni Algebraists Category theorists Cornell University faculty Harvard University faculty University of Chicago faculty National Medal of Science laureates Members of the American Philosophical Society Members of the United States National Academy of Sciences Presidents of the American Mathematical Society Presidents of the Mathematical Association of America Proceedings of the National Academy of Sciences of the United States of America editors