Alasdair Urquhart

Emeritus Professor
Email Address:  

MA (Edinburgh), PhD (Pittsburgh)


Primary office
Department of Philosophy

170 St. George St., 5th Floor, Rm.527
Tel: 416-978-3311
Fax: 416-978-8703


Secondary office
Rm. 2303A Sanford Fleming Building
Tel: 416-949-8477


Research Interests:  
logic, computational complexity theory, history of logic, non-classical logics


— “The undecidability of entailment and relevant implication” (J. Sym. Logic, 1984)

— “Functional Interpretations of Feasibly constructive Arithmetic”, co-authored with S.A. Cook (Annals of Pure and Applied Logic 1993)

— “The Complexity of Decision Procedures in Relevance Logic 11” (J. Symbolic Logic, 1999)