Roy Sorensen is Professor of Philosophy. He is the author of six books: Blindspots (Oxford University Press/Clarendon Press, 1988), Thought Experiments (Oxford University Press, 1992) and Pseudo-Problems (Routledge, 1993), Vagueness and Contradiction, (Oxford University Press, 2001), A Brief History of the Paradox (Oxford Univeristy Press, 2003), and Seeing Dark Things (Oxford, 2008).




How many blocks are in this mix?
See you SEVEN or only SIX?
The more you look the worse the fix
Yet some keen eyes can solve such trix