Professor of Reasoning, Inference and Scientific Method, University of Kent

Grupo Interdisciplinar de Sistemas Complejos (GISC), Complutense University

Lecturer, University of New South Wales (deceased)

Professor of Mathematics, Memphis

University of Adelaide

Department of Philosophy, University of Hong Kong

Philosophy, University of Alabama at Birmingham

Senior Research Fellow, Australian Catholic University

Tacoma Community College and University of Washington

Nature Communications, Nature Portfolio