Aranyosi, I.2016-02-082016-02-0820091122-1151http://hdl.handle.net/11693/22740Tobias Hansson Wahlberg argues in a recent article that the truth of ‘‘Hesperus is Phosphorus’’ depends on the assumption that the endurance theory of persistence is true. I argue that the premise Wahlberg’s conclusion is based upon leads to absurd consequences, therefore, nothing recommends it. As a consequence, ‘‘Hesperus is Phosphorus’’ has to be true, if it is true, regardless of which theory of persistence one is committed to.EnglishEnduranceIdentityMereologyPerduranceHesperus is phosphorus, indeedArticle10.1007/s10516-009-9068-1