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Michael A. Gilbert - October 7th 1PM ET

Michael A. Gilbert was born and raised in the Flatbush section of Brooklyn, NY. He emigrated to Canada in 1968 and received his PhD in Philosophy from the University of Waterloo in Ontario, Canada in 1974. After teaching for two years at the University of Toronto, he moved to York University in Toronto where he was full Professor of Philosophy until his retirement in 2017.


His books in argumentation are How to Win an Argument, now in a third edition, in 1997 the monograph Coalescent Argumentation, and most recently his book Arguing with People, published in 2014 by Broadview Press.


His work is focused on Argumentation Theory, and also Gender & Transgender Theory. Two recent major publications are “Natural Normativity: Argumentation Theory as an Engaged Discipline,” in the journal Informal Logic in 2007, and “Defeating Bigenderism: Changing gender assumptions in the 21st century,” which appeared in Hypatia in the summer of 2009.


Most recently an entire issue of the journal Informal Logic (42:3) was dedicated to an exploration of his theory of multi-modal argumentation. See it here: Informal Logic


He was offered the ISSA Prize for excellence in Argumentation Theory research but declined as he would not travel to China for moral reasons.


He lives in Toronto with his wife and their granddaughter Emma, their dog Noulli, and Cita the cat.  Since retiring he spends the winter in Ajijic, Mexico. Most of his journal articles (including a number in Spanish) can be found at

For a look back on the journey his multi-modal theory of argumentation has taken over thirty years, look here: Multi-Modal 2020 | Informal Logic

For an argument about intuition and the kisceral in argument, look here: The Kisceral: Reason and Intuition in Argumentation | SpringerLink

For his view on argumentation theory as a field see:  SAGE Research Methods - The SAGE Encyclopedia of Communication Research Methods (

If you are interested in his work on gender: Defeating Bigenderism: Changing Gender Assumptions in the Twenty-First Century on JSTOR.


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Deborah Heikes - September 2nd 1PM ET

Deborah Heikes is an expert on Immanuel Kant, though her research focuses primarily on the shift away from modern accounts of mind. As an alternative, she has developed a concept of rationality as a virtue concept. In particular, she is interested in building an account of rationality that more completely includes subjective and social elements while still maintaining an objective ground for reason and for moral concepts like equality and justice. While her earlier work focused primarily on reconceiving of rationality based on feminist criticisms, later work also considers how modern accounts of rationality led to the development of race and how a post-Cartesian rationality is better able to accommodate the differences that exist among people.  Her most current work examines undesirable beliefs, such as racist and sexist ones, and asks the question how responsible are we for holding these types of beliefs.  She is currently working on a book entitled, It’s Not My Fault: Undesirable Belief, Epistemic Responsibility, and Ignorance. 


She has published four books on the topic of rationality: Toward a Liberatory Epistemology, (Palgrave Macmillan 2019), Rationality, Representation and Race (Palgrave Macmillan 2016); The Virtue of Feminist Rationality (Continuum 2012), and Rationality and Feminist Philosophy (Continuum 2010). She has published articles in such journals as Synthese, The Journal of Mind and Behavior, and Southwest Philosophy Review.