books.google.co.uk - In this provocative book, Lance Rips describes a unified theory of natural deductive reasoning and fashions a working model of deduction, with strong experimental support, that is capable of playing a central role in mental life.Rips argues that certain inference principles are so central to our notion...http://books.google.co.uk/books/about/The_psychology_of_proof_electronic_resou.html?id=daoiVBTngY0C&utm_source=gb-gplus-shareThe psychology of proof [electronic resource]
