J. Anthony Blair

J. Anthony Blair
Born	1941 (age 75–76) Ottawa, Ontario
Occupation	Professor
Known for	One of the founding members of the informal logic movement in North America

John Anthony Blair (born 12 August 1941) is a Canadian philosopher, born in Ottawa, Ontario. Along with his colleague Ralph Johnson, he has been credited as one of the founding members of the informal logic movement in North America. The two co-published one of the movement's most influential texts, “Logical Self-Defense”. Blair is also co-founder of the Centre for Research in Reasoning, Argumentation, and Rhetoric, co-founder of the Ontario Society for the Study of Argumentation (OSSA), and a founding board member of the International Society for the Study of Argumentation (ISSA).

Blair studied at the University of Michigan and McGill University. He taught philosophy at the University of Windsor from 1967 until 2006, serving two terms as the head of that department. He is currently professor emeritus at the University of Windsor.

Blair's publications have focused on argumentation theory, critical thinking, informal logic, and visual argumentation.

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