David Braybrooke holds the Centennial Commission Chair in the Liberal Arts (Government and Philosophy) at the University of Texas at Austin. He belongs with contributors Bryson Brown and Peter K. Schotch to the Dalhousie University team that has produced Logic On the Track of Social Change (1995).

• The Logicians' and Philosophers' Approach to Rules -- The Representation of Rules in Logic and Their Definition -- Hyperdeontic Logic: An Overview -- Normative Explanations -- Rules and the Rationality of Scientific Cultures -- Changes of Rules, Issue-Circumscription, and Issue-Processing -- The Nature of Customary Law in the Manor Courts of Medieval England -- Worries About Quandaries -- Rules and Resources: The Legitimation of Political Parties in France and the United States -- Synoptic Comment on Applications of the Logical Theory of Rules -- Transition -- Do We Know Enough About Legal Norms? -- Notes on the Logic of Legal Change -- The Economists' Approach to the Origin of Rules and to Changes in Them -- Comment on Reconciling the Philosophers' Approach to Rules with the Economists' -- Institutional Change: A Framework of Analysis -- Conceptions of Social Rule -- The Origin of Rules in Uncertainty -- Rules, Equilibrium, Beliefs, and Social Mathematics -- Epilogue Schematic Synthesis -- Epilogue By Way of Summary: A Schematic Synthesis of the Discussion at the Murphy Institute Conference