Willis, John, Dogra, Sandeep, Cadartifex (2) Cadartifex, Dogra, Sandeep, Willis, John (2) Cadartifex, Willis, John, Dogra, Sandeep (2) Willis, Sarah Clawson (2) Mancosu, Paolo (willis S. And Marion Slusser Professor Of Philosophy, Galvan, Sergio (emeritus Professor Of Logic, Zach, Richard (professor Of Philosophy (1)