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• AB, Cornell University, 1968
• PhD, Princeton University, 1972

• Yale 1972-74
• Wesleyan 1977-78, 1980-81, 1982-83, 1990

• Mathematical logic
• Abstract algebra

• Model theory, especially model theoretic algebra (existentially complete, quantifier-eliminable, and homogeneous structures in algebra)
• Combinatorics

• Abstract Algebra: A First Course (1980; second expanded edition 2008), Model Theory and Algebra, co-editor (Springer-Verlag, 1975)
• Numerous articles in journals such as the Journal of Symbolic Logic, Journal of Algebra, Proceedings of the American Mathematical Society, Transactions of the American Mathematical Society, Communications in Algebra, Annals of Pure and Applied Logic, Israel Journal of Mathematics, Journal of Combinatorial Theory, Colloquium Mathematicum, Algebra Universalis, Mathematical Proceedings of the Cambridge Philosophical Society, European Journal of Combinatorics,  Ars Combinatoria, and Annals of Combinatorics

• Included in the Princeton Review's The Best 300 Professors, 2012 
• Director of the Division of Natural Sciences and Mathematics (2005-2008)
• Alumni Corporation Award for Distinguished Teaching 2003
• Phi Eta Sigma Professor of the Year 1995
• John Hasbrouck van Vleck Visiting Professor at Wesleyan 1990, 1996
• Visitor at the Institute for Advanced Study, Princeton 1986
• NSF research grant 1976-78
• Guest Researcher, University of Heidelberg 1975

The mathematical research done at º¬Ðß²ÝÑо¿Ëù is on a level that gets the attention of people at major research universities, and yet undergraduate students in mathematics here get a great deal of attention from the faculty. Our program is unusual in this regard, and in terms of the percentage of students who major in mathematics: five or six times the national average.