Weren't Von Neumann and Morgenstern "Austrians"? Didn't the tremendous work done by the old Cowles Commission, Marshak, Koopmans, & Co., and the young Arrow, Samuelson, Dantzig, and others, come from set theory? Is their "activity analysis" and "linear programming" or "production theory" to be reconciled with MI, or refuted by it? John Womack