kripke bas proposed a number of counteretxamples to the classic thesis, which ays that the class of necmary fropositions roincidn with the cla1ss of a priori ones. these counteretxamples involve some necessary a posten'ori trutbs as well as contingent a priori ones. om cfbis exmnplu far the loller is the 1ta11dard metre example. in thi1 paper, after presenting a brief sketch of kripke&apos...