Matches in DBpedia 2015-10 for { ?s ?p "Alasdair Ian Fenton Urquhart /ˈɜrkərt/, born 20 December 1945, is an emeritus Professor of Philosophy at the University of Toronto. He has made notable contributions to the field of logic, especially non-classical logic. One of his most notable achievements is proving the undecidability of the relevance logic R."@en }
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- Alasdair_Urquhart comment "Alasdair Ian Fenton Urquhart /ˈɜrkərt/, born 20 December 1945, is an emeritus Professor of Philosophy at the University of Toronto. He has made notable contributions to the field of logic, especially non-classical logic. One of his most notable achievements is proving the undecidability of the relevance logic R.".