In redefining logic, philosophers need to go back to the Aristotelian roots of the subject, to expand the boundaries of the subject to include informal logic and to give up false oppositions between informal and formal logic.

Modern logic has Wldergone some remarkable developments in the last hun dred years. These have contributed to the extraordinary use of formal logic which has become essentially the concern of mathematicians. This has led to attempts to identify logic with formal logic. The claim has even been made that all non-formal reasoning, to the extent that it cannot be formalized, no longer belongs to logic. This conception leads to a genuine impoverishment of logic as well as to a narrow conception (...) of reason. It means that as soon as demonstrative proofs are no longer available reason will no longer dominate. Even the idea of the 'reasonable' becomes foreign to logic and such expres sions as 'reasonable decisions', 'reasonable choice' or 'reasonable hypotheses' would be put aside as meaningless. The domain of action, including method ology and everything that is given over to deliberation or controversy - i.e., foreign to formal logic - would become a battleground where necessarily the reason of the strongest would always prevail. (shrink)

Thomas Gilovich offers a wise and readable guide to the fallacy of the obvious in everyday life. When can we trust what we believe—that "teams and players have winning streaks," that "flattery works," or that "the more people who agree, the more likely they are to be right"—and when are such beliefs suspect? Thomas Gilovich offers a guide to the fallacy of the obvious in everyday life. Illustrating his points with examples, and supporting them with the latest research findings, he (...) documents the cognitive, social, and motivational processes that distort our thoughts, beliefs, judgments and decisions. In a rapidly changing world, the biases and stereotypes that help us process an overload of complex information inevitably distort what we would like to believe is reality. Awareness of our propensity to make these systematic errors, Gilovich argues, is the first step to more effective analysis and action. (shrink)