Alvin Plantinga attempted to revive it using axiom S5 of modal logic, but detractors often cite this axiom or his "possibility premise"* as reasons why his argument does not work.
Alvin Plantinga attempted to revive it using axiom S5 of modal logic, but detractors often cite this axiom or his "possibility premise"* as reasons why his argument does not work. In his On Behalf of the Fool Gaunilo attacked the original with his island serving as an "Overload Objection". Another criticism of the idea as a whole argues that the use of the term "God" results in a fallacy of equivocation. FTP, what is this argument, originally developed by Anselm of Canterbury to prove the existence of god by arguing that the concept of a perfect being necessarily requires that he exist?
Alvin Plantinga attempted to revive it using axiom S5 of modal logic, but detractors often cite this axiom or his "possibility premise"* as reasons why his argument does not work.
Ontological Argument or Ontological Proof