Economics and Economy in the Theory of Belief Revision

Plato laboured hard to characterize the di erence between genuine knowledge and mere belief He may be read as having claimed the knowledge is justi ed true belief Meno e a Theaetetus c d This account became the standard analysis of knowledge for more than two millennia Since knowledge entails belief on the standard account any attempt to fathom out the founda tions of knowledge must include an analysis of belief After Edmund Gettier shook the standard account many philosophers argued that the stan dard tripartite de nition needs to be supplemented by a fourth condition One particular prominent avenue was to take the stability or indefeasibility of a be lief under criticism as a necessary condition for it to qualify as knowledge an idea that can also be traced back to Plato s Meno This suggests that it is not only the set of current beliefs but also the potential development of the agent s beliefs that is relevant to knowledge