Ryan ROSS
ABSTRACT: Kopec and Titelbaum collect five alleged counterexamples to Uniqueness, the thesis that it is impossible for agents who have the same total evidence to be ideally rational in having different doxastic attitudes toward the same proposition. I argue that four of the alleged counterexamples fail and that Uniqueness should be slightly modified to accommodate the fifth example. hispaper contains a critical examination of the prospects for analyses of knowledge that weaken the factivity condition so that knowledge implies only approximate truth.